Holtek BS83B24C User manual

Touch Flash MCU
BS83B24C/BS83C40C
Revision: V1.00 Date: February 07, 2018February 07, 2018

Rev. 1.00 2 February 07, 2018 Rev. 1.00 3 February 07, 2018
BS83B24C/BS83C40C
Touch Flash MCU
BS83B24C/BS83C40C
Touch Flash MCU
Table of Contents
Features............................................................................................................ 6
CPU Features ......................................................................................................................... 6
Peripheral Features................................................................................................................. 6
General Description......................................................................................... 7
Selection Table................................................................................................. 7
Block Diagram.................................................................................................. 8
Pin Assignment................................................................................................ 8
Pin Description ................................................................................................ 9
Absolute Maximum Ratings.......................................................................... 17
D.C. Characteristics....................................................................................... 18
Operating Voltage Characteristics......................................................................................... 18
Standby Current Characteristics ........................................................................................... 18
Operating Current Characteristics......................................................................................... 19
A.C. Characteristics....................................................................................... 20
High Speed Internal Oscillator – HIRC – Frequency Accuracy ............................................. 20
Low Speed Internal Oscillator Characteristics – LIRC .......................................................... 20
Low Speed Crystal Oscillator Characteristics – LXT............................................................. 20
Operating Frequency Characteristic Curves ......................................................................... 21
System Start Up Time Characteristics .................................................................................. 21
Input/Output Characteristics ........................................................................ 22
Memory Characteristics ................................................................................ 23
LVR Electrical Characteristics...................................................................... 23
Power-on Reset Characteristics................................................................... 23
System Architecture...................................................................................... 24
Clocking and Pipelining......................................................................................................... 24
Program Counter................................................................................................................... 25
Stack ..................................................................................................................................... 25
Arithmetic and Logic Unit – ALU ........................................................................................... 26
Flash Program Memory................................................................................. 27
Structure................................................................................................................................ 27
Special Vectors ..................................................................................................................... 27
Look-up Table ....................................................................................................................... 27
Table Program Example........................................................................................................ 28
In Circuit Programming – ICP ............................................................................................... 29
On-Chip Debug Support – OCDS ......................................................................................... 30
Data Memory .................................................................................................. 31
Structure................................................................................................................................ 31
Data Memory Addressing...................................................................................................... 32
General Purpose Data Memory ............................................................................................ 32
Special Purpose Data Memory ............................................................................................. 32

Rev. 1.00 2 February 07, 2018 Rev. 1.00 3 February 07, 2018
BS83B24C/BS83C40C
Touch Flash MCU
BS83B24C/BS83C40C
Touch Flash MCU
Special Function Register Description........................................................ 35
Indirect Addressing Registers – IAR0, IAR1, IAR2 ............................................................... 35
Memory Pointers – MP0, MP1L, MP1H, MP2L, MP2H......................................................... 35
Accumulator – ACC .............................................................................................................. 36
Program Counter Low Register – PCL ................................................................................. 37
Look-up Table Registers – TBLP, TBHP, TBLH .................................................................... 37
Status Register – STATUS.................................................................................................... 37
EEPROM Data Memory.................................................................................. 39
EEPROM Data Memory Structure ........................................................................................ 39
EEPROM Registers .............................................................................................................. 39
Reading Data from the EEPROM ......................................................................................... 40
Writing Data to the EEPROM................................................................................................ 41
Write Protection..................................................................................................................... 41
EEPROM Interrupt ................................................................................................................ 41
Programming Considerations................................................................................................ 41
Oscillators ...................................................................................................... 43
Oscillator Overview ............................................................................................................... 43
System Clock Congurations................................................................................................ 43
Internal RC Oscillator – HIRC ............................................................................................... 44
External 32.768kHz Crystal Oscillator – LXT ........................................................................ 44
Internal 32kHz Oscillator – LIRC........................................................................................... 45
Operating Modes and System Clocks ......................................................... 46
System Clocks ...................................................................................................................... 46
System Operation Modes...................................................................................................... 47
Control Registers .................................................................................................................. 48
Operating Mode Switching .................................................................................................... 50
Standby Current Considerations ........................................................................................... 54
Wake-up................................................................................................................................ 54
Watchdog Timer............................................................................................. 55
Watchdog Timer Clock Source.............................................................................................. 55
Watchdog Timer Control Register ......................................................................................... 55
Watchdog Timer Operation ................................................................................................... 56
Reset and Initialisation ................................................................................. 57
Reset Functions .................................................................................................................... 57
Reset Initial Conditions ........................................................................................................ 60
Input/Output Ports ........................................................................................ 65
Pull-high Resistors ................................................................................................................ 66
Port A Wake-up ..................................................................................................................... 66
I/O Port Control Registers ..................................................................................................... 67
I/O Port Source Current Control............................................................................................ 67
Pin-shared Functions ............................................................................................................ 69
I/O Pin Structures.................................................................................................................. 75
Programming Considerations ............................................................................................... 75

Rev. 1.00 4 February 07, 2018 Rev. 1.00 5 February 07, 2018
BS83B24C/BS83C40C
Touch Flash MCU
BS83B24C/BS83C40C
Touch Flash MCU
Timer Modules – TM ...................................................................................... 76
Introduction ........................................................................................................................... 76
TM Operation ........................................................................................................................ 76
TM Clock Source................................................................................................................... 76
TM Interrupts......................................................................................................................... 77
TM External Pins................................................................................................................... 77
Programming Considerations................................................................................................ 78
Compact Type TM – CTM .............................................................................. 79
Compact TM Operation......................................................................................................... 79
Compact Type TM Register Description................................................................................ 79
Compact Type TM Operating Modes .................................................................................... 83
Periodic Type TM – PTM................................................................................ 89
Periodic TM Operation .......................................................................................................... 89
Periodic Type TM Register Description................................................................................. 90
Periodic Type TM Operation Modes...................................................................................... 94
Universal Serial Interface Module – USIM ................................................. 103
SPI Interface ....................................................................................................................... 103
I2C Interface .........................................................................................................................111
UART Interface.................................................................................................................... 121
Touch Key Function .................................................................................... 136
Touch Key Structure............................................................................................................ 136
Touch Key Register Denition............................................................................................. 138
Touch Key Operation........................................................................................................... 144
Touch Key Interrupt ............................................................................................................. 150
Programming Considerations.............................................................................................. 150
Interrupts ...................................................................................................... 151
Interrupt Registers............................................................................................................... 151
Interrupt Operation .............................................................................................................. 154
External Interrupt................................................................................................................. 156
Multi-function Interrupt ........................................................................................................ 156
Timer Module Interrupts ...................................................................................................... 157
EEPROM Interrupt .............................................................................................................. 157
USIM Interrupt..................................................................................................................... 157
Touch Key Interrupt ............................................................................................................. 158
Time Base Interrupts........................................................................................................... 158
Interrupt Wake-up Function................................................................................................. 159
Programming Considerations.............................................................................................. 160
Conguration Options................................................................................. 160
Application Circuits..................................................................................... 161
Instruction Set.............................................................................................. 162
Introduction ......................................................................................................................... 162
Instruction Timing ................................................................................................................ 162
Moving and Transferring Data............................................................................................. 162

Rev. 1.00 4 February 07, 2018 Rev. 1.00 5 February 07, 2018
BS83B24C/BS83C40C
Touch Flash MCU
BS83B24C/BS83C40C
Touch Flash MCU
Arithmetic Operations.......................................................................................................... 162
Logical and Rotate Operation ............................................................................................. 163
Branches and Control Transfer ........................................................................................... 163
Bit Operations ..................................................................................................................... 163
Table Read Operations ....................................................................................................... 163
Other Operations................................................................................................................. 163
Instruction Set Summary ............................................................................ 164
Table Conventions............................................................................................................... 164
Extended Instruction Set ..................................................................................................... 166
Instruction Denition................................................................................... 168
Extended Instruction Denition ........................................................................................... 177
Package Information ................................................................................... 184
28-pin SOP (300mil) Outline Dimensions ........................................................................... 185
28-pin SSOP (150mil) Outline Dimensions ......................................................................... 186
44-pin LQFP (10mm×10mm) (FP2.0mm) Outline Dimensions ........................................... 187

Rev. 1.00 6 February 07, 2018 Rev. 1.00 7 February 07, 2018
BS83B24C/BS83C40C
Touch Flash MCU
BS83B24C/BS83C40C
Touch Flash MCU
Features
CPU Features
• OperatingVoltage

♦fSYS=8MHz:2.2V~5.5V

♦fSYS=12MHz:2.7V~5.5V

♦fSYS=16MHz:3.3V~5.5V
• Upto0.25μsinstructioncyclewith16MHzsystemclockatVDD=5V
• Powerdownandwake-upfunctionstoreducepowerconsumption
• Oscillatortypes:

♦InternalHighSpeed8/12/16MHzRCOscillator–HIRC

♦InternalLowSpeed32kHzRCOscillator–LIRC

♦ExternalLowSpeed32.768kHzCrystal–LXT
• Fullyintegratedinternaloscillatorsrequirenoexternalcomponents
• Multi-modeoperation:FAST,SLOW,IDLEandSLEEP
• Allinstructionsexecutedin1~3instructioncycles
• Tablereadinstructions
• 115powerfulinstructions
• 6-levelsubroutinenesting
• Bitmanipulationinstruction
Peripheral Features
• FlashProgramMemory:Upto4K×16
• RAMDataMemory:Upto768×8
• TrueEEPROMMemory:128×8
• Upto40touchkeys–fullyintegratedwithoutrequiringexternalcomponents
• WatchdogTimerfunction
• Upto42bidirectionalI/Olines
• ProgrammableI/Osourcecurrent
• SingleexternalinterruptlinesharedwithI/Opin
• MultipleTimerModulesfortimemeasurement,inputcapture,comparematchoutput,PWM
outputfunctionorsinglepulseoutputfunction
• DualTime-Basefunctionsforgenerationofxedtimeinterruptsignals
• UniversialSerialInterfaceModule–USIMforSPI,I2CorUARTcommunication
• Lowvoltageresetfunction–LVR
• Widerangeofpackagetypes

Rev. 1.00 6 February 07, 2018 Rev. 1.00 7 February 07, 2018
BS83B24C/BS83C40C
Touch Flash MCU
BS83B24C/BS83C40C
Touch Flash MCU
General Description
TheseriesofdevicesaretheFlashMemory8-bithighperformanceRISCarchitecture
microcontrollerswithfullyintegratedtouchkeyfunctions.Withthetouchkeyfunctionprovided
internallyandwiththeconvenienceofFlashMemorymulti-programmingfeatures,thisseriesof
deviceshaveallthefeaturestoofferdesignerareliableandeasymeansofimplementingtouchkeys
withtheirproductapplications.
TheTouchkeyfunctioniscompletelyintegratedeliminatingtheneedforexternalcomponents.In
additiontotheFlashprogrammemory,othermemoryincludesanareaofRAMDataMemoryas
wellasanareaoftrueEEPROMmemoryforstorageofnon-volatiledatasuchasserialnumbers,
calibrationdataetc.ProtectivefeaturessuchasaninternalWatchdogTimerandLowVoltage
ResetcoupledwithexcellentnoiseimmunityandESDprotectionensurethatreliableoperationis
maintainedinhostileelectricalenvironments.
Afullchoiceofexternal,internalhighandlowoscillatorfunctionsareprovidedincludingfully
integratedsystemoscillatorswhichrequirenoexternalcomponentsfortheirimplementation.The
abilitytooperateandswitchdynamicallybetweenarangeofoperatingmodesusingdifferent
clocksourcesgivesuserstheabilitytooptimisemicrocontrolleroperationandminimisepower
consumption.Easycommunicationwiththeoutsideworldiscateredforbyincludingfullyintegrated
SPI,I2CandUARTinterfacefunctions,whiletheinclusionofexibleI/Oprogrammingfeatures,
TimerModules,Time-Basefunctionsalongwithmanyotherfeaturesenhancedevicefunctionality
andexibility.
Thetouchkeydeviceswillfindexcellentuseinahugerangeofmoderntouchkeyproduct
applicationssuchasinstrumentation,householdappliances,electronicallycontrolledtoolstoname
butafew.
Selection Table
Mostfeaturesarecommontoalldevices.ThemainfeaturesdistinguishingthemareMemory
capacity,I/Ocount,TimeModulenumberandTouchkeynumber.Thefollowingtablesummarises
themainfeaturesofeachdevice.
Part No. Program Memory Data Memory Data EEPROM I/O External Interrupt
BS83B24C 3K × 16 512 × 8 128 × 8 26 1
BS83C40C 4K × 16 768 × 8 128 × 8 42 1
Part No. Timer Module Time Base Touch key USIM Stacks Package
BS83B24C 10-bit PTM × 1 2 24 √628SOP
28SSOP
BS83C40C 10-bit CTM × 1
10-bit PTM × 1 2 40 √6 44LQFP

Rev. 1.00 8 February 07, 2018 Rev. 1.00 9 February 07, 2018
BS83B24C/BS83C40C
Touch Flash MCU
BS83B24C/BS83C40C
Touch Flash MCU
Block Diagram
Touch Key Module 9
Touch Key Module 1
Interrupt
Controller
Bus
MUX
Reset
Circuit
Stack
6-level
RAM
768 × 8
ROM
4K × 16
Watchdog
Timer
Port A
Driver
HIRC
8/12/16MHz
LIRC
32kHz
Timer Pin-Shared
Function
PA0~PA7
HT8 MCU Core
Time Base
INT
Pin-Shared
With Port A
EEPROM
128 × 8
LVR
PB0~PB7
Port B
Driver
PC0~PC7
Port C
Driver
VSS
VDD VDD
VSS
Pin-Shared
With Port A, B,
C, D, E & F
Filter
Key OSC
Multi-
frequency
16-bit C/F
Counter
Time Slot
Counter
Touch Key Module 0
SYSCLK
KEY1~KEY40
USIM
Touch Key Function
Key OSC
Key OSC
Key OSC
MUX
Clock System
I/O
Digital Peripherals
: USIM including SPI, I2C & UART
: Pin-Shared Node
: Bus Entry
LXT
XT1
XT2
Pin-Shared
With Port A
PD0~PD7
Port D
Driver
PE0~PE7
Port E
Driver
PF0~PF1
Port F
Driver
Pin Assignment
PB2/KEY9
PB3/KEY10
PB4/KEY11
PB5/KEY12
PB6/KEY13
PB7/KEY14
PC0/KEY15
PC1/KEY16
PC2/KEY17
PC3/KEY18
PC4/KEY19
PC5/KEY20
PC6/KEY21
PC7/KEY22
PB1/KEY8
PB0/PTPB/KEY7
PA7/PTPI/KEY6
PA6/INT/KEY5
PA5/SDA/SDI/RX/KEY4
PA4/SDO/TX/KEY3
PA3/SCS/PTP/INT/KEY2
PA1/SCK/SCL/PTCK/KEY1
VSS
PA2/SCK/SCL/SDO/TX/XT1/ICPCK/OCDSCK
PA0/SDA/SDI/RX/XT2/ICPDA/OCDSDA
VDD
PD1/KEY24
PD0/KEY23
BS83B24C/BS83BV24C
28SOP-A/SSOP-A
28
27
26
25
24
23
22
21
20
19
18
17
16
15
1
2
3
4
5
6
7
8
9
10
11
12
13
14

Rev. 1.00 8 February 07, 2018 Rev. 1.00 9 February 07, 2018
BS83B24C/BS83C40C
Touch Flash MCU
BS83B24C/BS83C40C
Touch Flash MCU
BS83C40C/BS83CV40C
44 LQFP-A
1
2
3
4
5
6
7
8
9
10
11
12 13 14 15 16 17 18 19 20 21 22
23
24
25
26
27
28
29
30
31
32
33
3435363738394041424344
VSS
PE7/KEY38
PF1/KEY40
PF0/KEY39
PA3/SCS/PTP/INT/KEY2
PA5/SDA/SDI/RX/KEY4
PA4/SDO/TX/KEY3
PB4/KEY11
PB5/KEY12
PB6/KEY13
PB7/KEY14
PC0/KEY15
PC3/KEY18
PC1/KEY16
PC5/KEY20
PC4/KEY19
PC7/KEY22
PC2/KEY17
PD4/KEY27 PD5/KEY28 PD6/KEY29 PD7/KEY30
PE0/KEY31
VDD
PE1/KEY32
PE2/CTCK/KEY33 PE3/CTP/KEY34 PE4/CTPB/KEY35
PE5/KEY36
PC6/KEY21
PD1/KEY24
PD0/KEY23
PD3/KEY26
PD2/KEY25
PA0/SDA/SDI/RX/XT2/ICPDA/OCDSDA
PA2/SCK/SCL/SDO/TX/XT1/ICPCK/OCDSCK
PE6/KEY37
PA1/SCK/SCL/PTCK/KEY1
PA7/PTPI/KEY6
PB0/PTPB/KEY7
PB1/KEY8
PB2/KEY9
PB3/KEY10
PA6/INT/KEY5
Notes:1.Ifthepin-sharedpinfunctionshavemultipleoutputs,thedesiredpin-sharedfunctionisdeterminedby
thecorrespondingsoftwarecontrolbits.
2.TheOCDSDAandOCDSCKpinsaresuppliedasOCDSdedicatedpinsandassuchonlyavailablefor
theBS83BV24CandtheBS83CV40CdeviceswhicharetheOCDSEVchipsfortheBS83B24Cand
theBS83C40Cdevicesrespectively.
Pin Description
Withtheexceptionofthepowerpins,allpinsonthedevicecanbereferencedbytheirPortnames,
e.g.PA0,PA1etc,whichrefertothedigitalI/Ofunctionofthepins.HoweverthesePortpinsare
alsosharedwithotherfunctionsuchastheTimerModulepinsetc.Thefunctionofeachpinislisted
inthefollowingtable,howeverthedetailsbehindhoweachpiniscongurediscontainedinother
sectionsofthedatasheet.
BS83B24C
Pin Name Function OPT I/T O/T Description
PA0/SDA/SDI/
RX/XT2/ICPDA/
OCDSDA
PA0
PAWU
PAPU
PAS0
ST CMOS General purpose I/O. Register enabled pull-up
and wake-up.
SDA PAS0
IFS ST NMOS I2C data line
SDI PAS0
IFS ST — SPI serial data input
RX PAS0
IFS ST — UART serial data input
XT2 PAS0 — LXT LXT oscillator pin
ICPDA — ST CMOS ICP data/address
OCDSDA — ST CMOS OCDS data/address, for EV chip only

Rev. 1.00 10 February 07, 2018 Rev. 1.00 11 February 07, 2018
BS83B24C/BS83C40C
Touch Flash MCU
BS83B24C/BS83C40C
Touch Flash MCU
Pin Name Function OPT I/T O/T Description
PA1/SCK/SCL/
PTCK/KEY1
PA1
PAWU
PAPU
PAS0
ST CMOS General purpose I/O. Register enabled pull-up
and wake-up.
SCK PAS0
IFS ST CMOS SPI serial clock
SCL PAS0
IFS ST NMOS I2C clock line
PTCK PAS0 ST — PTM capture input
KEY1 PAS0
TKM0C1 NSI — Touch key input 1
PA2/SCK/SCL/
SDO/TX/XT1/
ICPCK/OCDSCK
PA2
PAWU
PAPU
PAS0
ST CMOS General purpose I/O. Register enabled pull-up
and wake-up.
SCK PAS0
IFS ST CMOS SPI serial clock
SCL PAS0
IFS ST NMOS I2C clock line
SDO PAS0 — CMOS SPI serial data output
TX PAS0 — CMOS UART serial data output
XT1 PAS0 LXT — LXT oscillator pin
ICPCK — ST — ICP clock input
OCDSCK — ST — OCDS clock input, for EV chip only
PA3/SCS/PTP/
INT/KEY2
PA3
PAWU
PAPU
PAS0
ST CMOS General purpose I/O. Register enabled pull-up
and wake-up.
SCS PAS0 ST — SPI slave select pin
PTP PAS0 — CMOS PTM output
INT
PAS0
INTEG
INTC0
IFS
ST — External interrupt
KEY2 PAS0
TKM0C1 NSI — Touch key input 2
PA4/SDO/TX/
KEY3
PA4
PAWU
PAPU
PAS1
ST CMOS General purpose I/O. Register enabled pull-up
and wake-up.
SDO PAS1 — CMOS SPI serial data output
TX PAS1 — CMOS UART serial data output
KEY3 PAS1
TKM0C1 NSI — Touch key input 3
PA5/SDA/SDI/RX/
KEY4
PA5
PAWU
PAPU
PAS1
ST CMOS General purpose I/O. Register enabled pull-up
and wake-up.
SDA PAS1
IFS ST NMOS I2C data line
SDI PAS1
IFS ST — SPI serial data input
RX PAS1
IFS ST — UART serial data input
KEY4 PAS1
TKM0C1 NSI — Touch key input 4

Rev. 1.00 10 February 07, 2018 Rev. 1.00 11 February 07, 2018
BS83B24C/BS83C40C
Touch Flash MCU
BS83B24C/BS83C40C
Touch Flash MCU
Pin Name Function OPT I/T O/T Description
PA6/INT/KEY5
PA6
PAWU
PAPU
PAS1
ST CMOS General purpose I/O. Register enabled pull-up
and wake-up.
INT
PAS1
INTEG
INTC0
IFS
ST — External interrupt
KEY5 PAS1
TKM1C1 NSI — Touch key input 5
PA7/PTPI/KEY6
PA7
PAWU
PAPU
PAS1
ST CMOS General purpose I/O. Register enabled pull-up
and wake-up.
PTPI PAS1 ST — PTM capture input
KEY6 PAS1
TKM1C1 NSI — Touch key input 6
PB0/PTPB/KEY7
PB0 PBPU
PBS0 ST CMOS General purpose I/O. Register enabled pull-up.
PTPB PBS0 — CMOS PTM inverting output
KEY7 PBS0
TKM1C1 NSI — Touch key input 7
PB1/KEY8
PB1 PBPU
PBS0 ST CMOS General purpose I/O. Register enabled pull-up.
KEY8 PBS0
TKM1C1 NSI — Touch key input 8
PB2/KEY9
PB2 PBPU
PBS0 ST CMOS General purpose I/O. Register enabled pull-up.
KEY9 PBS0
TKM2C1 NSI — Touch key input 9
PB3/KEY10
PB3 PBPU
PBS0 ST CMOS General purpose I/O. Register enabled pull-up.
KEY10 PBS0
TKM2C1 NSI — Touch key input 10
PB4/KEY11
PB4 PBPU
PBS1 ST CMOS General purpose I/O. Register enabled pull-up.
KEY11 PBS1
TKM2C1 NSI — Touch key input 11
PB5/KEY12
PB5 PBPU
PBS1 ST CMOS General purpose I/O. Register enabled pull-up.
KEY12 PBS1
TKM2C1 NSI — Touch key input 12
PB6/KEY13
PB6 PBPU
PBS1 ST CMOS General purpose I/O. Register enabled pull-up.
KEY13 PBS1
TKM3C1 NSI — Touch key input 13
PB7/KEY14
PB7 PBPU
PBS1 ST CMOS General purpose I/O. Register enabled pull-up.
KEY14 PBS1
TKM3C1 NSI — Touch key input 14
PC0/KEY15
PC0 PCPU
PCS0 ST CMOS General purpose I/O. Register enabled pull-up.
KEY15 PCS0
TKM3C1 NSI — Touch key input 15

Rev. 1.00 12 February 07, 2018 Rev. 1.00 13 February 07, 2018
BS83B24C/BS83C40C
Touch Flash MCU
BS83B24C/BS83C40C
Touch Flash MCU
Pin Name Function OPT I/T O/T Description
PC1/KEY16
PC1 PCPU
PCS0 ST CMOS General purpose I/O. Register enabled pull-up.
KEY16 PCS0
TKM3C1 NSI — Touch key input 16
PC2/KEY17
PC2 PCPU
PCS0 ST CMOS General purpose I/O. Register enabled pull-up.
KEY17 PCS0
TKM4C1 NSI — Touch key input 17
PC3/KEY18
PC3 PCPU
PCS0 ST CMOS General purpose I/O. Register enabled pull-up.
KEY18 PCS0
TKM4C1 NSI — Touch key input 18
PC4/KEY19
PC4 PCPU
PCS1 ST CMOS General purpose I/O. Register enabled pull-up.
KEY19 PCS1
TKM4C1 NSI — Touch key input 19
PC5/KEY20
PC5 PCPU
PCS1 ST CMOS General purpose I/O. Register enabled pull-up.
KEY20 PCS1
TKM4C1 NSI — Touch key input 20
PC6/KEY21
PC6 PCPU
PCS1 ST CMOS General purpose I/O. Register enabled pull-up.
KEY21 PCS1
TKM5C1 NSI — Touch key input 21
PC7/KEY22
PC7 PCPU
PCS1 ST CMOS General purpose I/O. Register enabled pull-up.
KEY22 PCS1
TKM5C1 NSI — Touch key input 22
PD0/KEY23
PD0 PDPU
PDS0 ST CMOS General purpose I/O. Register enabled pull-up.
KEY23 PDS0
TKM5C1 NSI — Touch key input 23
PD1/KEY24
PD1 PDPU
PDS0 ST CMOS General purpose I/O. Register enabled pull-up.
KEY24 PDS0
TKM5C1 NSI — Touch key input 24
VDD VDD — PWR — Positive power supply
VSS VSS — PWR — Negative power supply
Legend:I/T:Inputtype    O/T:Outputtype
 OPT:Optionalbyregisteroption  ST:SchmittTriggerinput
 CMOS:CMOSoutput   NMOS:NMOSoutput
 AN:Analogsignal    PWR:Power
 LXT:Lowfrequencycrystaloscillator  NSI:Non-standardinput

Rev. 1.00 12 February 07, 2018 Rev. 1.00 13 February 07, 2018
BS83B24C/BS83C40C
Touch Flash MCU
BS83B24C/BS83C40C
Touch Flash MCU
BS83C40C
Pin Name Function OPT I/T O/T Description
PA0/SDA/SDI/RX/
XT2/ICPDA/
OCDSDA
PA0
PAWU
PAPU
PAS0
ST CMOS General purpose I/O. Register enabled pull-up
and wake-up.
SDA PAS0
IFS ST NMOS I2C data line
SDI PAS0
IFS ST — SPI serial data input
RX PAS0
IFS ST — UART serial data input
XT2 PAS0 — LXT LXT oscillator pin
ICPDA — ST CMOS ICP data/address
OCDSDA — ST CMOS OCDS data/address, for EV chip only
PA1/SCK/SCL/
PTCK/KEY1
PA1
PAWU
PAPU
PAS0
ST CMOS General purpose I/O. Register enabled pull-up
and wake-up.
SCK PAS0
IFS ST CMOS SPI serial clock
SCL PAS0
IFS ST NMOS I2C clock line
PTCK PAS0 ST — PTM capture input
KEY1 PAS0
TKM0C1 NSI — Touch key input 1
PA2/SCK/SCL/
SDO/TX/XT1/
ICPCK/OCDSCK
PA2
PAWU
PAPU
PAS0
ST CMOS General purpose I/O. Register enabled pull-up
and wake-up.
SCK PAS0
IFS ST CMOS SPI serial clock
SCL PAS0
IFS ST NMOS I2C clock line
SDO PAS0 — CMOS SPI serial data output
TX PAS0 — CMOS UART serial data output
XT1 PAS0 LXT — LXT oscillator pin
ICPCK — ST — ICP clock input
OCDSCK — ST — OCDS clock input, for EV chip only
PA3/SCS/PTP/
INT/KEY2
PA3
PAWU
PAPU
PAS0
ST CMOS General purpose I/O. Register enabled pull-up
and wake-up.
SCS PAS0 ST — SPI slave select pin
PTP PAS0 — CMOS PTM output
INT
PAS0
INTEG
INTC0
IFS
ST — External interrupt
KEY2 PAS0
TKM0C1 NSI — Touch key input 2
PA4/SDO/TX/
KEY3
PA4
PAWU
PAPU
PAS1
ST CMOS General purpose I/O. Register enabled pull-up
and wake-up.
SDO PAS1 — CMOS SPI serial data output
TX PAS1 — CMOS UART serial data output
KEY3 PAS1
TKM0C1 NSI — Touch key input 3

Rev. 1.00 14 February 07, 2018 Rev. 1.00 15 February 07, 2018
BS83B24C/BS83C40C
Touch Flash MCU
BS83B24C/BS83C40C
Touch Flash MCU
Pin Name Function OPT I/T O/T Description
PA5/SDA/SDI/RX/
KEY4
PA5
PAWU
PAPU
PAS1
ST CMOS General purpose I/O. Register enabled pull-up
and wake-up.
SDA PAS1
IFS ST NMOS I2C data line
SDI PAS1
IFS ST — SPI serial data input
RX PAS1
IFS ST — UART serial data input
KEY4 PAS1
TKM0C1 NSI — Touch key input 4
PA6/INT/KEY5
PA6
PAWU
PAPU
PAS1
ST CMOS General purpose I/O. Register enabled pull-up
and wake-up.
INT
PAS1
INTEG
INTC0
IFS
ST — External interrupt
KEY5 PAS1
TKM1C1 NSI — Touch key input 5
PA7/PTPI/KEY6
PA7
PAWU
PAPU
PAS1
ST CMOS General purpose I/O. Register enabled pull-up
and wake-up.
PTPI PAS1 ST — PTM capture input
KEY6 PAS1
TKM1C1 NSI — Touch key input 6
PB0/PTPB/KEY7
PB0 PBPU
PBS0 ST CMOS General purpose I/O. Register enabled pull-up.
PTPB PBS0 — CMOS PTM inverting output
KEY7 PBS0
TKM1C1 NSI — Touch key input 7
PB1/ KEY8
PB1 PBPU
PBS0 ST CMOS General purpose I/O. Register enabled pull-up.
KEY8 PBS0
TKM1C1 NSI — Touch key input 8
PB2/KEY9
PB2 PBPU
PBS0 ST CMOS General purpose I/O. Register enabled pull-up.
KEY9 PBS0
TKM2C1 NSI — Touch key input 9
PB3/KEY10
PB3 PBPU
PBS0 ST CMOS General purpose I/O. Register enabled pull-up.
KEY10 PBS0
TKM2C1 NSI — Touch key input 10
PB4/KEY11
PB4 PBPU
PBS1 ST CMOS General purpose I/O. Register enabled pull-up.
KEY11 PBS1
TKM2C1 NSI — Touch key input 11
PB5/KEY12
PB5 PBPU
PBS1 ST CMOS General purpose I/O. Register enabled pull-up.
KEY12 PBS1
TKM2C1 NSI — Touch key input 12
PB6/KEY13
PB6 PBPU
PBS1 ST CMOS General purpose I/O. Register enabled pull-up.
KEY13 PBS1
TKM3C1 NSI — Touch key input 13

Rev. 1.00 14 February 07, 2018 Rev. 1.00 15 February 07, 2018
BS83B24C/BS83C40C
Touch Flash MCU
BS83B24C/BS83C40C
Touch Flash MCU
Pin Name Function OPT I/T O/T Description
PB7/KEY14
PB7 PBPU
PBS1 ST CMOS General purpose I/O. Register enabled pull-up.
KEY14 PBS1
TKM3C1 NSI — Touch key input 14
PC0/KEY15
PC0 PCPU
PCS0 ST CMOS General purpose I/O. Register enabled pull-up.
KEY15 PCS0
TKM3C1 NSI — Touch key input 15
PC1/KEY16
PC1 PCPU
PCS0 ST CMOS General purpose I/O. Register enabled pull-up.
KEY16 PCS0
TKM3C1 NSI — Touch key input 16
PC2/KEY17
PC2 PCPU
PCS0 ST CMOS General purpose I/O. Register enabled pull-up.
KEY17 PCS0
TKM4C1 NSI — Touch key input 17
PC3/KEY18
PC3 PCPU
PCS0 ST CMOS General purpose I/O. Register enabled pull-up.
KEY18 PCS0
TKM4C1 NSI — Touch key input 18
PC4/KEY19
PC4 PCPU
PCS1 ST CMOS General purpose I/O. Register enabled pull-up.
KEY19 PCS1
TKM4C1 NSI — Touch key input 19
PC5/ KEY20
PC5 PCPU
PCS1 ST CMOS General purpose I/O. Register enabled pull-up.
KEY20 PCS1
TKM4C1 NSI — Touch key input 20
PC6/ KEY21
PC6 PCPU
PCS1 ST CMOS General purpose I/O. Register enabled pull-up.
KEY21 PCS1
TKM5C1 NSI — Touch key input 21
PC7/KEY22
PC7 PCPU
PCS1 ST CMOS General purpose I/O. Register enabled pull-up.
KEY22 PCS1
TKM5C1 NSI — Touch key input 22
PD0/KEY23
PD0 PDPU
PDS0 ST CMOS General purpose I/O. Register enabled pull-up.
KEY23 PDS0
TKM5C1 NSI — Touch key input 23
PD1/KEY24
PD1 PDPU
PDS0 ST CMOS General purpose I/O. Register enabled pull-up.
KEY24 PDS0
TKM5C1 NSI — Touch key input 24
PD2/KEY25
PD2 PDPU
PDS0 ST CMOS General purpose I/O. Register enabled pull-up.
KEY25 PDS0
TKM6C1 NSI — Touch key input 25
PD3/KEY26
PD3 PDPU
PDS0 ST CMOS General purpose I/O. Register enabled pull-up.
KEY26 PDS0
TKM6C1 NSI — Touch key input 26

Rev. 1.00 16 February 07, 2018 Rev. 1.00 17 February 07, 2018
BS83B24C/BS83C40C
Touch Flash MCU
BS83B24C/BS83C40C
Touch Flash MCU
Pin Name Function OPT I/T O/T Description
PD4/KEY27
PD4 PDPU
PDS1 ST CMOS General purpose I/O. Register enabled pull-up.
KEY27 PDS1
TKM6C1 NSI — Touch key input 27
PD5/KEY28
PD5 PDPU
PDS1 ST CMOS General purpose I/O. Register enabled pull-up.
KEY28 PDS1
TKM6C1 NSI — Touch key input 28
PD6/KEY29
PD6 PDPU
PDS1 ST CMOS General purpose I/O. Register enabled pull-up.
KEY29 PDS1
TKM7C1 NSI — Touch key input 29
PD7/KEY30
PD7 PDPU
PDS1 ST CMOS General purpose I/O. Register enabled pull-up.
KEY30 PDS1
TKM7C1 NSI — Touch key input 30
PE0/KEY31
PE0 PEPU
PES0 ST CMOS General purpose I/O. Register enabled pull-up.
KEY31 PES0
TKM7C1 NSI — Touch key input 31
PE1/KEY32
PE1 PEPU
PES0 ST CMOS General purpose I/O. Register enabled pull-up.
KEY32 PES0
TKM7C1 NSI — Touch key input 32
PE2/CTCK/KEY33
PE2 PEPU
PES0 ST CMOS General purpose I/O. Register enabled pull-up.
CTCK PES0 ST — CTM clock input
KEY33 PES0
TKM8C1 NSI — Touch key input 33
PE3/CTP/KEY34
PE3 PEPU
PES0 ST CMOS General purpose I/O. Register enabled pull-up.
CTP PES0 — CMOS CTM output
KEY34 PES0
TKM8C1 NSI — Touch key input 34
PE4/CTPB/KEY35
PE4 PEPU
PES1 ST CMOS General purpose I/O. Register enabled pull-up.
CTPB PES1 — CMOS CTM inverting output
KEY35 PES1
TKM8C1 NSI — Touch key input 35
PE5/KEY36
PE5 PEPU
PES1 ST CMOS General purpose I/O. Register enabled pull-up.
KEY36 PES1
TKM8C1 NSI — Touch key input 36
PE6/KEY37
PE6 PEPU
PES1 ST CMOS General purpose I/O. Register enabled pull-up.
KEY37 PES1
TKM9C1 NSI — Touch key input 37
PE7/KEY38
PE7 PEPU
PES1 ST CMOS General purpose I/O. Register enabled pull-up.
KEY38 PES1
TKM9C1 NSI — Touch key input 38

Rev. 1.00 16 February 07, 2018 Rev. 1.00 17 February 07, 2018
BS83B24C/BS83C40C
Touch Flash MCU
BS83B24C/BS83C40C
Touch Flash MCU
Pin Name Function OPT I/T O/T Description
PF0/KEY39
PF0 PFPU
PFS0 ST CMOS General purpose I/O. Register enabled pull-up.
KEY39 PFS0
TKM9C1 NSI — Touch key input 39
PF1/KEY40
PF1 PFPU
PFS0 ST CMOS General purpose I/O. Register enabled pull-up.
KEY40 PFS0
TKM9C1 NSI — Touch key input 40
VDD VDD — PWR — Positive power supply
VSS VSS — PWR — Negative power supply
Legend:I/T:Inputtype    O/T:Outputtype
 OPT:Optionalbyregisteroption  ST:SchmittTriggerinput
 CMOS:CMOSoutput   NMOS:NMOSoutput
 AN:Analogsignal    PWR:Power
 LXT:Lowfrequencycrystaloscillator  NSI:Non-standardinput
Absolute Maximum Ratings
SupplyVoltage….................................................................................................VSS-0.3VtoVSS+6.0V
InputVoltage…....................................................................................................VSS-0.3VtoVDD+0.3V
StorageTemperature.......................................................................................................-50°Cto125°C
OperatingTemperature.....................................................................................................-40°Cto85°C
IOLTotal..........................................................................................................................................80mA
IOHTotal........................................................................................................................................-80mA
TotalPowerDissipation..............................................................................................................500mW
Note:Thesearestressratingsonly.Stressesexceedingtherangespecifiedunder“Absolute
MaximumRatings”maycausesubstantialdamagetothedevice.Functionaloperationofthis
deviceatotherconditionsbeyondthoselistedinthespecicationisnotimpliedandprolonged
exposuretoextremeconditionsmayaffectdevicereliability.

Rev. 1.00 18 February 07, 2018 Rev. 1.00 19 February 07, 2018
BS83B24C/BS83C40C
Touch Flash MCU
BS83B24C/BS83C40C
Touch Flash MCU
D.C. Characteristics
Fordatainthefollowingtables,notethatfactorssuchasoscillatortype,operatingvoltage,operating
frequency,pinloadconditions,temperatureandprograminstructiontype,etc.,canallexertan
inuenceonthemeasuredvalues.
Operating Voltage Characteristics
Ta=-40°C~85°C
Symbol Parameter Test Conditions Min. Typ. Max. Unit
VDD
Operating Voltage – HIRC
fSYS=8MHz 2.2 — 5.5 V
fSYS=12MHz 2.7 — 5.5 V
fSYS=16MHz 3.3 — 5.5 V
Operating Voltage – LXT fSYS=32768Hz 2.2 — 5.5 V
Operating Voltage – LIRC fSYS=32kHz 2.2 — 5.5 V
Standby Current Characteristics
Ta=25°C
Symbol Standby Mode Test Conditions Min. Typ. Max. Max. Unit
VDD Conditions 85°C
ISTB
SLEEP Mode
2.2V
WDT on
— 1.2 2.4 2.9
μA3V — 1.5 3.0 3.6
5V — 3.0 5.0 6.0
IDLE0 Mode – LIRC
2.2V
fSUB on
— 2.4 4.0 4.8
μA3V — 3.0 5.0 6.0
5V — 5.0 10 12
IDLE0 Mode – LXT
2.2V
fSUB on
— 2.4 4.0 4.8
μA
3V — 3.0 5.0 6.0
5V — 5.0 10 12
IDLE1 Mode – HIRC
2.2V
fSUB on, fSYS=8MHz
— 288 400 480
μA
3V — 360 500 600
5V — 600 800 960
2.7V
fSUB on, fSYS=12MHz
— 432 600 720
μA3V — 540 750 900
5V — 800 1200 1440
3.3V fSUB on, fSYS=16MHz — 1.1 1.6 1.9 mA
5V — 1.4 2.0 2.4
Notes:Whenusingthecharacteristictabledata,thefollowingnotesshouldbetakenintoconsideration:
1.Anydigitalinputsaresetupinanon-oatingcondition.
2.Allmeasurementsaretakenunderconditionsofnoloadandwithallperipheralsinanoffstate.
3.TherearenoDCcurrentpaths.
4.AllStandbyCurrentvaluesaretakenafteraHALTinstructionexecutionthusstoppingallinstruction
execution.

Rev. 1.00 18 February 07, 2018 Rev. 1.00 19 February 07, 2018
BS83B24C/BS83C40C
Touch Flash MCU
BS83B24C/BS83C40C
Touch Flash MCU
Operating Current Characteristics
Ta=25°C
Symbol Operating Mode Test Conditions Min. Typ. Max. Unit
VDD Conditions
IDD
SLOW Mode – LIRC
2.2V
fSYS=32kHz
— 8 16
μA
3V — 10 20
5V — 30 50
SLOW Mode – LXT
2.2V
fSYS=32768Hz
— 8 16
μA3V — 10 20
5V — 30 50
FAST Mode – HIRC
2.2V
fSYS=8MHz
— 0.6 1.0
mA
3V — 0.8 1.2
5V — 1.6 2.4
2.7V
fSYS=12MHz
— 1.0 1.4
3V — 1.2 1.8
5V — 2.4 3.6
3.3V fSYS=16MHz — 3.0 4.5
5V — 4.0 6.0
Notes:Whenusingthecharacteristictabledata,thefollowingnotesshouldbetakenintoconsideration:
1.Anydigitalinputsaresetupinanon-oatingcondition.
2.Allmeasurementsaretakenunderconditionsofnoloadandwithallperipheralsinanoffstate.
3.TherearenoDCcurrentpaths.
4.AllOperatingCurrentvaluesaremeasuredusingacontinuousNOPinstructionprogramloop.

Rev. 1.00 20 February 07, 2018 Rev. 1.00 21 February 07, 2018
BS83B24C/BS83C40C
Touch Flash MCU
BS83B24C/BS83C40C
Touch Flash MCU
A.C. Characteristics
Fordatainthefollowingtables,notethatfactorssuchasoscillatortype,operatingvoltage,operating
frequencyandtemperatureetc.,canallexertaninuenceonthemeasuredvalues.
High Speed Internal Oscillator – HIRC – Frequency Accuracy
DuringtheprogramwritingoperationthewriterwilltrimtheHIRCoscillatoratauserselected
HIRCfrequencyanduserselectedvoltageofeither3Vor5V.
8/12/16MHz
Symbol Parameter Test Conditions Min. Typ. Max. Unit
VDD Temp.
fHIRC
8MHz writer trimmed
HIRC frequency
3V/5V 25°C -1% 8 +1%
MHz
-40°C ~ 85°C -2% 8 +2%
2.2V~5.5V 25°C -2.5% 8 +2.5%
-40°C ~ 85°C -3% 8 +3%
12MHz writer trimmed
HIRC frequency
3V/5V 25°C -1% 12 +1%
MHz
-40°C ~ 85°C -2% 12 +2%
2.7V~5.5V 25°C -2.5% 12 +2.5%
-40°C ~ 85°C -3% 12 +3%
16MHz writer trimmed
HIRC frequency
5V 25°C -1% 16 +1%
MHz
-40°C ~ 85°C -2% 16 +2%
3.3V~5.5V 25°C -2.5% 16 +2.5%
-40°C ~ 85°C -3% 16 +3%
Notes:1.The3V/5VvaluesforVDDareprovidedasthesearethetwoselectablexedvoltagesatwhichtheHIRC
frequencyistrimmedbythewriter.
2.Therowbelowthe3V/5VtrimvoltagerowisprovidedtoshowthevaluesforthefullVDDrange
operatingvoltage.Itisrecommendedthatthetrimvoltageisxedat3Vforapplicationvoltageranges
from2.2Vto3.6Vandxedat5Vforapplicationvoltagerangesfrom3.3Vto5.5V.
3.Theminimumandmaximumtolerancevaluesprovidedinthetableareonlyforthefrequencyatwhich
thewritertrimstheHIRCoscillator.Aftertrimmingatthischosenspecicfrequencyanychangein
HIRCoscillatorfrequencyusingtheoscillatorregistercontrolbitsbytheapplicationprogramwillgive
afrequencytolerancetowithin±20%.
Low Speed Internal Oscillator Characteristics – LIRC
Ta=25°C, unless otherwise specied
Symbol Parameter Test Conditions Min. Typ. Max. Unit
VDD Temp.
fLIRC LIRC Frequency 2.2V~5.5V 25°C -10% 32 +10% kHz
-40°C~85°C -50% 32 +60%
tSTART LIRC Start Up Time — — — — 500 μs
Low Speed Crystal Oscillator Characteristics – LXT
Ta=25°C
Symbol Parameter Test Conditions Min. Typ. Max. Unit
VDD Temp.
fLXT Oscillator Frequency 2.2V~5.5V -40°C~85°C — 32768 — Hz
tSTART Start-up Time 3V/5V — — — 500 ms
Duty Cycle Duty Cycle — — 45 50 55 %
RNEG Negative Resistance 2.2V — 3×ESR — — Ω
Note:C1,C2andRPareexternalcomponents.C1=C2=10pF,RP=RU=10MΩ,CL=7pF,ESR=30kΩ.