Microchip Technology PIC12F1501 User manual

2011-2015 Microchip Technology Inc. DS40001609E-page 1
PIC16(L)F1508/9
High-Performance RISC CPU:
• C Compiler Optimized Architecture
• Only 49 Instructions
• Operating Speed:
- DC – 20 MHz clock input
- DC – 200 ns instruction cycle
• Interrupt Capability with Automatic Context
Saving
• 16-Level Deep Hardware Stack with Optional
Overflow/Underflow Reset
• Direct, Indirect and Relative Addressing modes:
- Two full 16-bit File Select Registers (FSRs)
- FSRs can read program and data memory
Flexible Oscillator Structure:
• 16 MHz Internal Oscillator Block:
- Factory calibrated to ±1%, typical
- Software selectable frequency range from
16 MHz to 31 kHz
• 31 kHz Low-Power Internal Oscillator
• Three External Clock modes up to 20 MHz
Special Microcontroller Features:
• Operating Voltage Range:
- 1.8V to 3.6V (PIC16LF1508/9)
- 2.3V to 5.5V (PIC16F1508/9)
• Self-Programmable under Software Control
• Power-on Reset (POR)
• Power-up Timer (PWRT)
• Programmable Low-Power Brown-out Reset
(LPBOR)
• Extended Watchdog Timer (WDT):
- Programmable period from 1 ms to 256s
• Programmable Code Protection
• In-Circuit Serial Programming™ (ICSP™) via Two
Pins
• Enhanced Low-Voltage Programming (LVP)
• In-Circuit Debug (ICD) via Two Pins
• Power-Saving Sleep mode:
- Low-Power Sleep mode
- Low-Power BOR (LPBOR)
• Integrated Temperature Indicator
• 128 Bytes High-Endurance Flash
- 100,000 write Flash endurance (minimum)
Memory:
• Up to 8 Kwords Linear Program Memory
Addressing
• Up to 512 bytes Linear Data Memory Addressing
• High-Endurance Flash Data Memory (HEF)
- 128 bytes if nonvolatile data storage
- 100k erase/write cycles
eXtreme Low-Power (XLP)
Features(PIC16LF1508/9):
• Sleep Current:
- 20 nA @ 1.8V, typical
• Watchdog Timer Current:
- 260 nA @ 1.8V, typical
• Operating Current:
-30A/MHz @ 1.8V, typical
• Secondary Oscillator Current:
- 700 nA @ 32 kHz, 1.8V, typical
Peripheral Features:
• Analog-to-Digital Converter (ADC):
- 10-bit resolution
- 12 external channels
- Three internal channels:
- Fixed Voltage Reference
- Digital-to-Analog Converter (DAC)
- Temperature Indicator channel
- Auto acquisition capability
- Conversion available during Sleep
• 5-Bit Digital-to-Analog Converter (DAC):
- Output available externally
- Positive reference selection
- Internal connections to comparators and ADC
• Two Comparators:
- Rail-to-rail inputs
- Power mode control
- Software controllable hysteresis
• Voltage Reference:
- 1.024V Fixed Voltage Reference (FVR) with
1x, 2x and 4x Gain output levels
• 18 I/O Pins (1 Input-only Pin):
- High current sink/source 25 mA/25 mA
- Individually programmable weak pull-ups
- Individually programmable
Interrupt-on-Change (IOC) pins
• Timer0: 8-Bit Timer/Counter with 8-Bit
Programmable Prescaler
• Enhanced Timer1:
- 16-bit timer/counter with prescaler
- External Gate Input mode
• Timer2: 8-Bit Timer/Counter with 8-Bit Period
Register, Prescaler and Postscaler
• Four 10-bit PWM modules
• Master Synchronous Serial Port (MSSP) with SPI
and I2C with:
- 7-bit address masking
- SMBus/PMBus™ compatibility
20-Pin Flash, 8-Bit Microcontrollers with XLP Technology

PIC16(L)F1508/9
DS40001609E-page 2 2011-2015 Microchip Technology Inc.
Peripheral Features (Continued):
• Enhanced Universal Synchronous Asynchronous
Receiver Transmitter (EUSART)
- RS-232, RS-485 and LIN compatible
- Auto-Baud Detect
- Auto-wake-up on Start
• Four Configurable Logic Cell (CLC) modules:
- 16 selectable input source signals
- Four inputs per module
- Software control of combinational/sequential
logic/state/clock functions
- AND/OR/XOR/D Flop/D Latch/SR/JK
- Inputs from external and internal sources
- Output available to pins and peripherals
- Operation while in Sleep
• Numerically Controlled Oscillator (NCO):
- 20-bit accumulator
- 16-bit increment
- True linear frequency control
- High-speed clock input
- Selectable Output modes
- Fixed Duty Cycle (FDC) mode
- Pulse Frequency (PF) mode
• Complementary Waveform Generator (CWG):
- Eight selectable signal sources
- Selectable falling and rising edge dead-band
control
- Polarity control
- Four auto-shutdown sources
- Multiple input sources: PWM, CLC, NCO
PIC12(L)F1501/PIC16(L)F150X FAMILY TYPES
Device
Data Sheet Index
Program Memory
Flash (words)
Data SRAM
(bytes)
I/O’s(2)
10-bit ADC (ch)
Comparators
DAC
Timers
(8/16-bit)
PWM
EUSART
MSSP (I2C/SPI)
CWG
CLC
NCO
Debug(1)
XLP
PIC12(L)F1501 (1) 1024 64 6 4 1 1 2/1 4 — — 1 2 1 H —
PIC16(L)F1503 (2) 2048 128 12 8 2 1 2/1 4 — 1 1 2 1 H —
PIC16(L)F1507 (3) 2048 128 18 12 — — 2/1 4 — — 1 2 1 H —
PIC16(L)F1508 (4) 4096 256 18 12 2 1 2/1 4 1 1 1 4 1 I/H Y
PIC16(L)F1509 (4) 8192 512 18 12 2 1 2/1 4 1 1 1 4 1 I/H Y
Note 1: Debugging Methods: (I) - Integrated on Chip; (H) - using Debug Header; (E) - using Emulation Header.
2: One pin is input-only.
Data Sheet Index: (Unshaded devices are described in this document.)
1: DS40001615 PIC12(L)F1501 Data Sheet, 8-Pin Flash, 8-bit Microcontrollers.
2: DS40001607 PIC16(L)F1503 Data Sheet, 14-Pin Flash, 8-bit Microcontrollers.
3: DS40001586 PIC16(L)F1507 Data Sheet, 20-Pin Flash, 8-bit Microcontrollers.
4: DS40001609 PIC16(L)F1508/9 Data Sheet, 20-Pin Flash, 8-bit Microcontrollers.
Note: For other small form-factor package availability and marking information, please visit
http://www.microchip.com/packaging or contact your local sales office.

2011-2015 Microchip Technology Inc. DS40001609E-page 3
PIC16(L)F1508/9
PIN DIAGRAMS
PIC16(L)F1508 PIC16(L)F1509
1
2
3
4
14
13
12
11
5
6
7
10
9
8
VDD
RA5
RA4
MCLR/VPP/RA3
RC5
RC4
VSS
RA0/ICSPDAT
RA1/ICSPCLK
RA2
RC0
RC1
RC2
RC3
Note: See Table 1 for location of all peripheral functions.
18
17
16
15
20
19
RC6
RC7
RB7
RB4
RB5
RB6
20-pin PDIP, SOIC, SSOP
PIC16(L)F1508
PIC16(L)F1509
Note 1: See Table 1 for location of all peripheral functions.
2: It is recommended that the exposed bottom pad be connected to VSS.
15 RA1/ICSPCLK
RA2
RC0
RC1
RC2
11
12
13
14
67
RC7
RB7 RB4 RB5 RB6
8910
2
3
1
1819
20 1617
5
4
VDD RA5 RA4
MCLR/VPP/RA3
RC5
RC4
RC3
RC6
VSS RA0/ICSPDAT
20-pin QFN, UQFN

PIC16(L)F1508/9
DS40001609E-page 4 2011-2015 Microchip Technology Inc.
PIN ALLOCATION TABLE
TABLE 1: 20-PIN ALLOCATION TABLE (PIC16(L)F1508/9)
I/O
20-Pin PDIP/SOIC/SSOP
20-Pin QFN/UQFN
ADC
Reference
Comparator
Timers
EUSART
MSSP
CWG
NCO
CLC
PWM
Interrupt
Pull-up
Basic
RA0 19 16 AN0 DAC1OUT1 C1IN+ — — —— — — — IOC YICSPDAT
ICDDAT
RA1 18 15 AN1 VREF+C1IN0-
C2IN0-
——— — — CLC4IN1 —IOC YICSPCLK
ICDCLK
RA2 17 14 AN2 DAC1OUT2 C1OUT T0CKI — — CWG1FLT —CLC1 PWM3 INT/
IOC
Y —
RA3 4 1 — — — T1G(1) —SS
(1) — — CLC1IN0 —IOC YMCLR
VPP
RA4 320 AN3 — — SOSCO
T1G
— — — — — — IOC YCLKOUT
OSC2
RA5 219 — — — SOSCI
T1CKI
—— —NCO1CLK — — IOC YCLKIN
OSC1
RB4 13 10 AN10 — — — — SDA/SDI — — CLC3IN0 —IOC Y —
RB5 12 9AN11 — — —RX/DT— — — CLC4IN0 —IOC Y —
RB6 11 8 — — — — — SCL/SCK — — — — IOC Y —
RB7 10 7 — — — —TX/CK— — — CLC3 —IOC Y —
RC0 16 13 AN4 —C2IN+ — — — — — CLC2 — — — —
RC1 15 12 AN5 —C1IN1-
C2IN1-
——— —NCO1 —PWM4 — — —
RC2 14 11 AN6 —C1IN2-
C2IN2-
— — — — — — — — — —
RC3 7 4 AN7 —C1IN3-
C2IN3-
——— — — CLC2IN0 PWM2 — — —
RC4 6 3 — — C2OUT — — — CWG1B —CLC4
CLC2IN1
— — — —
RC5 5 2 — — — ———CWG1A —CLC1(1) PWM1 — — —
RC6 8 5 AN8 — — — — SS —NCO1(1) CLC3IN1 — — — —
RC7 9 6 AN9 — — ——SDO — — CLC1IN1 — — — —
VDD 118 — — — — — — — — — — — — VDD
VSS 20 17 — — — — — — — — — — — — VSS
Note 1: Alternate pin function selected with the APFCON (Register 11-1)register.

2011-2015 Microchip Technology Inc. DS40001609E-page 5
PIC16(L)F1508/9
TABLE OF CONTENTS
1.0 Device Overview .......................................................................................................................................................................... 8
2.0 Enhanced Mid-Range CPU ........................................................................................................................................................ 13
3.0 Memory Organization ................................................................................................................................................................. 15
4.0 Device Configuration .................................................................................................................................................................. 40
5.0 Oscillator Module (With Fail-Safe Clock Monitor)....................................................................................................................... 46
6.0 Resets ........................................................................................................................................................................................ 62
7.0 Interrupts .................................................................................................................................................................................... 70
8.0 Power-Down Mode (Sleep) ........................................................................................................................................................ 83
9.0 Watchdog Timer (WDT) ............................................................................................................................................................. 86
10.0 Flash Program Memory Control ................................................................................................................................................. 90
11.0 I/O Ports ................................................................................................................................................................................... 106
12.0 Interrupt-On-Change ................................................................................................................................................................ 119
13.0 Fixed Voltage Reference (FVR) ............................................................................................................................................... 124
14.0 Temperature Indicator Module ................................................................................................................................................. 126
15.0 Analog-to-Digital Converter (ADC) Module .............................................................................................................................. 128
16.0 5-Bit Digital-to-Analog Converter (DAC) Module...................................................................................................................... 142
17.0 Comparator Module.................................................................................................................................................................. 145
18.0 Timer0 Module ......................................................................................................................................................................... 152
19.0 Timer1 Module with Gate Control............................................................................................................................................. 155
20.0 Timer2 Module ......................................................................................................................................................................... 166
21.0 Master Synchronous Serial Port (MSSP) Module .................................................................................................................... 169
22.0 Enhanced Universal Synchronous Asynchronous Receiver Transmitter (EUSART) ............................................................... 223
23.0 Pulse-Width Modulation (PWM) Module .................................................................................................................................. 251
24.0 Configurable Logic Cell (CLC).................................................................................................................................................. 257
25.0 Numerically Controlled Oscillator (NCO) Module ..................................................................................................................... 273
26.0 Complementary Waveform Generator (CWG) Module ............................................................................................................ 280
27.0 In-Circuit Serial Programming™ (ICSP™) ............................................................................................................................... 292
28.0 Instruction Set Summary .......................................................................................................................................................... 294
29.0 Electrical Specifications............................................................................................................................................................ 309
30.0 DC and AC Characteristics Graphs and Charts ....................................................................................................................... 339
31.0 Development Support............................................................................................................................................................... 380
32.0 Packaging Information.............................................................................................................................................................. 384
Appendix A: Data Sheet Revision History.......................................................................................................................................... 397
The Microchip Website ...................................................................................................................................................................... 398
Customer Change Notification Service .............................................................................................................................................. 398
Customer Support.............................................................................................................................................................................. 398
Product Identification System ............................................................................................................................................................ 399

PIC16(L)F1508/9
DS40001609E-page 6 2011-2015 Microchip Technology Inc.
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PIC16(L)F1508/9
DS40001609E-page 8 2011-2015 Microchip Technology Inc.
1.0 DEVICE OVERVIEW
The block diagram of these devices are shown in
Figure 1-1, the available peripherals are shown in
Table 1-1, and the pinout descriptions are shown in
Table 1-2.
TABLE 1-1: DEVICE PERIPHERAL SUMMARY
Peripheral
PIC12(L)F1501 PIC16(L)F1503 PIC16(L)F1507 PIC16(L)F1508 PIC16(L)F1509
Analog-to-Digital Converter (ADC) ● ● ●●●
Complementary Wave Generator (CWG) ● ● ●●●
Digital-to-Analog Converter (DAC) ● ● ●●
Enhanced Universal
Synchronous/Asynchronous Receiver/
Transmitter (EUSART)
●●
Fixed Voltage Reference (FVR) ● ● ●●●
Numerically Controlled Oscillator (NCO) ● ● ●●●
Temperature Indicator ● ● ●●●
Comparators
C1 ● ● ●●
C2 ●●●
Configurable Logic Cell (CLC)
CLC1 ● ● ●●●
CLC2 ● ● ●●●
CLC3 ●●
CLC4 ●●
Master Synchronous Serial Ports
MSSP1 ●●●
PWM Modules
PWM1 ● ● ●●●
PWM2 ● ● ●●●
PWM3 ● ● ●●●
PWM4 ● ● ●●●
Timers
Timer0 ● ● ●●●
Timer1 ● ● ●●●
Timer2 ● ● ●●●

2011-2015 Microchip Technology Inc. DS40001609E-page 9
PIC16(L)F1508/9
FIGURE 1-1: PIC16(L)F1508/9 BLOCK DIAGRAM
OSC2/CLKOUT
OSC1/CLKIN
RAM
CPU
(Note 3)
Timing
Generation
INTRC
Oscillator
MCLR
Program
Flash Memory
FVRDAC
ADC
10-bit
Temp
Indicator
C1C2TMR0TMR1TMR2MSSP1
PWM1 EUSART PWM2PWM3PWM4CLC1CLC2CLC3CLC4NCO1CWG1
PORTA
PORTB
PORTC
Rev. 10-000039A
8/1/2013
Note 1: See applicable chapters for more information on peripherals.
2: See Table 1 -1 for peripherals on specific devices.
3: See Figure 2-1.

PIC16(L)F1508/9
DS40001609E-page 10 2011-2015 Microchip Technology Inc.
TABLE 1-2: PIC16(L)F1508/9 PINOUT DESCRIPTION
Name Function Input
Type Output Type Description
RA0/AN0/C1IN+/DAC1OUT1/
ICSPDAT/ICDDAT
RA0 TTL CMOS General purpose I/O.
AN0 AN — ADC Channel input.
C1IN+ AN — Comparator positive input.
DAC1OUT1 — AN Digital-to-Analog Converter output.
ICSPDAT ST CMOS ICSP™ Data I/O.
ICDDAT ST CMOS In-Circuit Debug data.
RA1/AN1/CLC4IN1/VREF+/
C1IN0-/C2IN0-/ICSPCLK/
ICDCLK
RA1 TTL CMOS General purpose I/O.
AN1 AN — ADC Channel input.
CLC4IN1 ST — Configurable Logic Cell source input.
VREF+ AN — ADC Positive Voltage Reference input.
C1IN0- AN — Comparator negative input.
C2IN0- AN — Comparator negative input.
ICSPCLK ST — ICSP Programming Clock.
ICDCLK ST — In-Circuit Debug Clock.
RA2/AN2/C1OUT/DAC1OUT2/
T0CKI/INT/PWM3/CLC1/
CWG1FLT
RA2 ST CMOS General purpose I/O.
AN2 AN — ADC Channel input.
C1OUT — CMOS Comparator output.
DAC1OUT2 — AN Digital-to-Analog Converter output.
T0CKI ST — Timer0 clock input.
INT ST — External interrupt.
PWM3 — CMOS PWM output.
CLC1 — CMOS Configurable Logic Cell source output.
CWG1FLT ST — Complementary Waveform Generator Fault input.
RA3/CLC1IN0/VPP/T1G(1)/SS(1)/
MCLR
RA3 TTL — General purpose input with IOC and WPU.
CLC1IN0 ST — Configurable Logic Cell source input.
VPP HV — Programming voltage.
T1G ST — Timer1 Gate input.
SS ST — Slave Select input.
MCLR ST — Master Clear with internal pull-up.
RA4/AN3/SOSCO/
CLKOUT/T1G
RA4 TTL CMOS General purpose I/O.
AN3 AN — ADC Channel input.
SOSCO XTAL XTAL Secondary Oscillator Connection.
CLKOUT — CMOS FOSC/4 output.
T1G ST — Timer1 Gate input.
RA5/CLKIN/T1CKI/NCO1CLK/
SOSCI
RA5 TTL CMOS General purpose I/O.
CLKIN CMOS — External clock input (EC mode).
T1CKI ST — Timer1 clock input.
NCO1CLK ST — Numerically Controlled Oscillator Clock source input.
SOSCI XTAL XTAL Secondary Oscillator Connection.
Legend: AN = Analog input or output CMOS = CMOS compatible input or output OD = Open-Drain
TTL = TTL compatible input ST = Schmitt Trigger input with CMOS levels I2C = Schmitt Trigger input with I2C
HV = High Voltage XTAL = Crystal levels
Note 1: Alternate pin function selected with the APFCON (Register 11-1) register.

2011-2015 Microchip Technology Inc. DS40001609E-page 11
PIC16(L)F1508/9
RB4/AN10/CLC3IN0/SDA/SDI RB4 TTL CMOS General purpose I/O.
AN10 AN — ADC Channel input.
CLC3IN0 ST — Configurable Logic Cell source input.
SDA I2CODI
2C data input/output.
SDI CMOS — SPI data input.
RB5/AN11/CLC4IN0/RX/DT RB5 TTL CMOS General purpose I/O.
AN11 AN — ADC Channel input.
CLC4IN0 ST — Configurable Logic Cell source input.
RX ST — USART asynchronous input.
DT ST CMOS USART synchronous data.
RB6/SCL/SCK RB6 TTL CMOS General purpose I/O.
SCL I2CODI
2C clock.
SCK ST CMOS SPI clock.
RB7/CLC3/TX/CK RB7 TTL CMOS General purpose I/O.
CLC3 — CMOS Configurable Logic Cell source output.
TX — CMOS USART asynchronous transmit.
CK ST CMOS USART synchronous clock.
RC0/AN4/CLC2/C2IN+ RC0 TTL CMOS General purpose I/O.
AN4 AN — ADC Channel input.
CLC2 — CMOS Configurable Logic Cell source output.
C2IN+ AN — Comparator positive input.
RC1/AN5/C1IN1-/C2IN1-/PWM4/
NCO1
RC1 TTL CMOS General purpose I/O.
AN5 AN — ADC Channel input.
C1IN1- AN — Comparator negative input.
C2IN1- AN — Comparator negative input.
PWM4 — CMOS PWM output.
NCO1 — CMOS Numerically Controlled Oscillator is source output.
RC2/AN6/C1IN2-/C2IN2- RC2 TTL CMOS General purpose I/O.
AN6 AN — ADC Channel input.
C1IN2- AN — Comparator negative input.
C2IN2- AN — Comparator negative input.
RC3/AN7/C1IN3-/C2IN3-/PWM2/
CLC2IN0
RC3 TTL CMOS General purpose I/O.
AN7 AN — ADC Channel input.
C1IN3- AN — Comparator negative input.
C2IN3- AN — Comparator negative input.
PWM2 — CMOS PWM output.
CLC2IN0 ST — Configurable Logic Cell source input.
RC4/C2OUT/CLC2IN1/CLC4/
CWG1B
RC4 TTL CMOS General purpose I/O.
C2OUT — CMOS Comparator output.
CLC2IN1 ST — Configurable Logic Cell source input.
CLC4 — CMOS Configurable Logic Cell source output.
CWG1B — CMOS CWG complementary output.
TABLE 1-2: PIC16(L)F1508/9 PINOUT DESCRIPTION (CONTINUED)
Name Function Input
Type Output Type Description
Legend: AN = Analog input or output CMOS= CMOS compatible input or output OD = Open-Drain
TTL = TTL compatible input ST = Schmitt Trigger input with CMOS levels I2C = Schmitt Trigger input with I2C
HV = High Voltage XTAL = Crystal levels
Note 1: Alternate pin function selected with the APFCON (Register 11-1) register.