XIAMEN OCULAR OPTICS GDM12864HLCM User manual

User’s Guide
GDM12864HLCM
(Liquid Crystal Display Module)
For product support, contact
XIAMEN OCULAR OPTICS CO.,LTD.
厦门高卓立光电有限公司
South2/F.,Guangxia Building Torch Hi-tech
Industrial Development Area Xiamen, China
36100 中国厦门火炬高技术产业开发区光厦楼南二楼
Tel: [phone] Fax: [phone]

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CONTENTS
Mechanical diagram
Absolute maximum ratings
Interface pin connections
Optical characteristics
Electrical characteristics
KS0107B
KS0108B
Write or read cycle
Timing characteristics
Block diagram
Display commands
Reliability and lift time
Operating Principles & Methods

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ØMechanical diagram
ØAbsolute maximum ratings
Item Symbol Min. Max. Unit
Supply voltage for logic Vdd -Vss 0 6.5
Input voltage Vin 0 Vdd V
Operating temperature range T0p -20 70
Storage temperature range Tst -25 75
ØInterface pin connections
Pin No. Symbol Level Description
1 Vdd 5.0V Supply voltage for logic and LCD (+)
2 Vss0V Ground
3 V0 -Operating voltage for LCD (variable)
4~11 DB0~DB7 H/L Data bit 0~7
12 CS2 LChip select signal for IC2
13 CS1 LChip select signal for IC1
14 /RES LReset signal
15 R/W H/L H: read (MUP< module),L: write (MPU >module)
16 D/I H/L H: data, L: instruction code
17 EH, HL Chip enable signal
18 VEE -Operating voltage for LCD (variable)
19 A4.2V Backlight power supply
20 K0V Backlight power supply

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ØOptical characteristics
STN Type display module (Ta=25 , Vdd=5.0V)
Item Symbol Condition Min. Typ. Max. Unit
-60 -35
Viewing angle фCr 2 -40 -40 deg
Contrast ratio (rise) Cr -6 -
Response time (fall) Tr --150 250 ms
Tr --150 250 ms
ØElectrical characteristics
Standard value
Item Symbol Condition Min. Typ. Max. Unit
Logic Vdd -Vss -4.75 5.0 5.25
Supply voltage for LCD Vdd-V0 --9.5 -V
Logic Idd --2.5 -
Supply current for LCD Iee --1.0 -mA
----
25 -9.5 -
Operating voltage for LCD
(Recommended) Vdd-v0 ----
H: level Vih High level 0.7Vdd -Vdd
Input voltage L: Level Vil Low level 0 -0.3Vdd
V
Electrical Absolute Maximum Ratings (KS0107B)
Parameter Symbol Rating Unit Note
Operating voltage VDD -0.3 ~ +7.0 V*1
Supply voltage VEE VDD-19.0 ~ VDD+0.3 V*4
VB-0.3 ~ VDD+0.3 V*1,2Driver supply voltage VLCD VEE-0.3 ~ VDD+0.3 V*3,4
*Notes:
*1. Based on VSS = 0V
*2. Applies to input terminals and I/O terminals at high impedance. (Except V0L, V1L, V4L, and V5L)
*3. Applies to V0L, V1L, V4L, and V5L.
*4. Voltage level: VDD V0 V1 V2 V3 V4 V5 VEE

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DC Electrical Characteristics (KS0107B)
(VDD= 4.5 to 5.5V, VSS=0V,VDD-VEE=8~17V,Ta= -30 to +85 )
Item Symbol Condition Min. Typ. Max. Unit Note
Operating voltage VDD -4.5 -5.5
VIH -0.7VDD -VDD
Input voltage VIL -VSS -0.3VDD *1
VOH IOH= -0.4mA VDD-0.4 --
output voltage VOL IOL= 0.4mA --0.4
V
*2
Input leakage current ILKG VIN= VDD ~ VSS -1.0 -+1.0 µA*1
OSC Frequency fosc Rf=47k 2%
Cf=20pF 5% 315 450 585 kHz
On Resistance
(Vdiv-Ci) RONS VDD-VEE=17V Load current 150µA--1.5 k
IDD1 Master mode
1/128 Duty --1.0 *3
Operating current IDD2 Master mode
1/128 Duty --0.2 *4
Supply Current IEE Master mode
1/128 Duty --0.1
mA
*5
Operating
fop1 Master mode External Duty 50 - 600
Frequency fop2 Slave mode 0.5 -1500 kHz
Notes
*1. Applies to input terminals FS, DS1, DS2, CR, SHL, MS and PCLK2 and I/O terminals DIO1, DIO2,
M, and CL2 in the input state.
*2. Applies to output terminals CLK1, CLK2 and FRM and I/O terminals DIO1, DIO2, M, and CL2 in the
output state.
*3. This value is specified about current flowing through VSS.
Internal oscillation circuit: Rf=47k , cf=20pF
Each terminals of DS1, DS2, FS, SHL, and MS is connected to VDD and out is no load.
*4. This value is specified about current flowing through VSS.
Each terminals is DS1, DS2, FS, SHL, PCLK2 and CR is connected to VDD,MS is connected to VSS
and CL2, M, DIO1 is external clock.
*5. This value is specified about current flowing through VEE, Don’t connect to VLCD (V1~V5).

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Electrical Absolute Maximum Ratings (KS0108B)
Parameter Symbol Rating Unit Note
Operating voltage VDD -0.3 ~ +7.0 V*1
Supply voltageVEE VDD-19.0 ~ VDD+0.3 V*4
VB-0.3 ~ VDD+0.3 V*1,3Driver supply voltage VLCD VEE-0.3 ~ VDD+0.3 V*2
*Notes:
*1. Based on VSS = 0V
*2. Applies the same supply voltage to VEE. VLCD=VDD-VEE.
*3. Applies to M, FRM, CLK1, CLK2, CL, RESETB, ADC, CS1B, CS2B, CS3, E, R/W, RS and
DB0~DB7.
*4. Applies V0L, V2L, V3L and V5L.
Voltage level: VDD V0 V1 V2 V3 V4 V5 VEE
DC Electrical Characteristics (KS0108B)
(VDD= 4.5 to 5.5V, VSS=0V,VDD-VEE=8~17V,Ta= -30 to +85 )
Item Symbol Condition Min. Typ. Max. Unit Note
Operating voltageVDD -4.5 -5.5
VIH1 -0.7VDD -VDD *1
Input High voltage VIH2 -2.0 -VDD *2
VIL1 -0-0.3VDD *1
Input Low voltage VIL2 -0-0.8 *2
Output High Voltage VOH IOH= -0.2mA 2.4 --*3
Output Low Voltage VOL IOL= 1.6mA --0.4
V
*3
Input leakage current ILKG VIN= VSS ~ VDD -1.0 -+1.0 µA*4
Three-state (OFF)
Input Current ITSL VIN= VSS ~ VDD -5.0 -5.0 *5
Driver Input leakage
current IDIL VIN= VEE ~ VDD -2.0 2.0 *6
On Resistance
(Vdiv-Ci) RONS VDD-VEE=15V Load current 100µA--7.5 k*8
IDD1 During Display --0.1 *7
Operating current IDD2 During Access
Access Cycle=1MHz --0.5 mA *7
Notes
*1. CL, FRM, M, RSTB, CLK1, CLK2
*2. CS1B, CS2B, CS3, E, R/W, RS, DB0~DB7
*3. DB0~DB7
*4. Except DB0~DB7
*5. DB0~DB7 at high impedance
*6. V0, V1, V3, V3, V4, V5
*7. 1/64 duty, FCLK=250KHZ, Frame Frequency=70HKZ, Output: No Load
*8. VDD-VEE=15.5V
V0L>V2L>= VDD-2/7(VDD-VEE)>V3L= VEE+2/7(VDD-VEE)>V5L

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ØWrite or read cycle
Characteristic Symbol Min. Typ. Max. Unit
E cycle Tc 1000 --ns
E high level width Twh 450 --ns
E low level width Twl 450 --ns
E rise time Tr --25 ns
E fall time Tf --25 ns
Address set-up time Tasu 140 --ns
Address hold time Tah 10 --ns
Data set-up time Tdsu 200 --ns
Data delay time Td --320 ns
Data hold time (write) Tdhw 10 --ns
Data hold time (read) Tdhr 20 --ns
²Write timing
tDSU tDHW
tASU
tASU
tAH
tAH
tRtF
tWL
tWH
tC
DB0~DB7
CS1,CS2
CS,RS
R/W
E
MPU Write timing

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²Read timing
tWL tC
tFtR
tAH
tAH
tASU
tASU
tWH
tD
tWH
MPU Read timing
DB0~DB7
CS1,CS2
CS,RS
R/W
E

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²Block diagram
VDD-Vo:LCD DRIVING VOLTAGE
VSS
VR:10K~20K
VEE
VDD
Vo
LCM
VEE
/RET
VDD
VSS
DB0~DB7
R/W E
A
K
CS
RS 3
8
V0
IC3
GND
VR
3
SEG65~128
83 5
58
LED BACKLIGHT MODULE
+5V
IC1
SEG1~64
IC2
LCD PANEL
COM 1~64
IC4
*Note
1/64 duty, 1/9 bias
VDD>V1>V2>V3>V4>V5>VEE

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²Display Control Instruction
The display control instructions control the internal state of the KS0108B. Instruction is received from MPU to
KS0108B for the display control. The following table shows various instructions.
Instruction RSRW DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0 Function
Read Display
Data 1 1 Read data Reads data (DB[7:0])from
display data RAM to the
data bus.
Write Display
Data 1 0 Write data
Writes data (DB[7:0]) into
display data RAM. After
writing instruction, Y
address is incriminated by
1 automatically
Status Read 0 1 Busy 0 ON/
OFF Re- set 0 0 0 0
Reads the internal status
BUSY
0: Ready
1: In operation
ON/OFF
0: Display ON
1: Display OFF
RESET
0: Normal
1: Reset
Set Address
(Y address) 0 0 0 1 Y address (0~63) Sets the Y address in the Y address counter
Set Display
Start Line 0 0 1 1 Display start line (0~63) Indicates the display data
RAM displayed at the top
of the screen.
Set Address
(X address) 0 0 1 0 1 1 1 Page (0~7) Sets the X address at the X address register.
Display On/off 0 0 0 0 1 1 1 1 1 0/1
Controls the display ON or
OFF. The internal status
and the DDRAM data is
not affected.
0: OFF, 1: ON
1. Display On/Off
The display data appears when D is 1 and disappears when D is 0.
Though the data is not on the screen with D=0, it remains in the display data RAM.
Therefore, you can make it appear by changing D=0 into D=1.
RS R/W DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
000011111D
2. Set Address (Y Address)
Y address (AC0~AC5) of the display data RAM is set in the Y address counter.
An address is set by instruction and increased by 1 automatically by read or write operations of display
data.
RS R/W DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
0001AC5 AC4 AC3 AC2 AC1 AC0