XIAMEN OCULAR GDM12864A User manual

User’s Guide
GDM12864A ™ LCM
(Liquid Crystal Display Module)
XIAMEN OCULAR LCD DEVICES CO., LTD.
??????????????
South 5F., Guang Xia Bldg. Torch Hi-tech
Develop. Area, Xiamen, China 361006
Tel: [phone] Fax: [phone]

GDM12864A LCM Use’s Guide
Contents
Chapter 1. Introduction to ITM-12864A LCM
1
Features 1
Mechanical Specifications 1
Temperature Characteristics 1
External Dimensions 2
Application Diagram 3
Electro-Optical characteristics 4
Interface Pin Connections 5
Electrical Absolute Maximum Rating (KS0107B) 6
DC Electrical Characteristics (KS0107B) 6
Electrical Absolute Maximum Rating (KS0108B) 7
DC Electrical Characteristics (KS0108B) 7
Chapter 2. Driver IC (KS0107B) Function Description 8
Introduction 8
AC Characteristics 9
Master Mode 9
Slave Mode 10
Functional Description 11
RC Oscillator 11
Timing Generation Circuit 11
Data Shift & Phase Select Control 12
Chapter 3. Driver IC (KS0108B) Function Description 13
Introduction 13
AC Characteristics 13
Operating Principles & Methods 16
Display Control Instruction 19

Chapter 1 Introduction to GDM12864A LCM 1
CHAPTER 1
Introduction to ITM-12864A LCM
ITM-12864A is a dot matrix graphic LCD module which is fabricated by low power COMS
technology. It can display 128*64 dots size LCD panel using a 128*64 bit-mapped Display Data
RAM (DDRAM). It interfaces with an 8-bit microprocessor.
Features
?? Display format: 128*64 dots matrix graphic
?? STN yellow-green mode
?? Easy interface with 8-bit MPU
?? Low power consumption
?? LED back-light
?? Viewing angle: 6 O’clock
?? Driving method : 1/64 duty , 1/6.7 bias
?? LCD driver IC: KS0108B(2 ?)?KS0107B
?? Connector: Zebra
Mechanical Specifications
Item Dimension Unit
Module Size(W*H*T) 93.0*70.0*10.0 mm
Viewing Area(W*H) 72.0*40.0 mm
Number of Dots 128.0*64.0 PCS
Dot Size(W*H) 0.48*0.48 mm
Dot Pitch(W*H) 0.52*0.52 mm
Module Size With B/L 93.0*70.0*15.0 mm
Temperature Characteristics
Parameter Symbol Rating Unit
Operating temperature Topr 0 ~ +50 ?
Storage temperature Tstg -20 ~ +70 ?

Chapter 1 Introduction to GDM12864A LCM 2
Figure 1. External Dimensions
PIN 1 2 3 4 5 6 7 8 9 10
SIGNAL Vss VDD
V0 D/I R/W
E DB0
DB1
DB2
DB3
PIN 11 12 13 14 15 16 17 18 19 20
SIGNAL DB4
DB5
DB6
DB7
CS1
CS2
RES
VEE
A K
*NOTE: 1.All units are mm.
2.Tolerances unless otherwise specified ?0.2.
INTECH LCD MODULE ITM-12864A

Chapter 1 Introduction to GDM12864A LCM 3
Figure 2. Application Diagram
CS2B DB[0:7] RESETB CS1B
S64
S1
CS3 RS
E
RW
12
V3
KS0108B
(Bottom view)
VSS
VSS VEE V4 V5
CLK1
CL2
CLK2
M
FRM
V0
V1
V2 VDD ADC
VEE
SEG64
DB[0:7]
RESETB
CS1B
CS3
CS2B
RESETB
DB[0:7]
CS2
CS1
E
RW
RS
12
RS
RW
E
SEG1 .... C1C64 CCRR
ADC
VEE VSS
V3
MPU
VSS
V5 V4 V0 V2 V1
VDD
S1 S64
KS0108B
(Bottom view) CLK2
CL2
FRM
CLK1
M
VSS
V4 V3 V5 V1 V0 V2
VEE
V4
V5
V2
V3
VDD
V0
V1
FS
DS1
VSS
DS2
MS
PCLK2
VDD
SHL
CL2
CLK2
CLK1
FRM
M
KS0107B
SEG128
LCD panel
(128X64)
SEG65 ....
. .
COM64
COM1
*Note
1/64 duty, 1/6.7 bias
VDD>V1>V2>V3>V4>V5>VEE

Chapter 1 Introduction to GDM12864A LCM 4
Electro-Optical characteristics
TN Type (Twisted Nematic )
Item Symbol Min. Typ. Max. Unit Condition Note
?2 -?1
Viewing Angle f40 --deg. Cr = 2.0 1,2
Contrast Ratio Cr -4--?=20?
f= 0?3
Response Time (rise) tR-110 -ms ?=20?
f= 0?4
Response Time (fall) tF-110 -ms ?=20?
f= 0?4
STN Type (Super Twisted Nematic )
Item Symbol Min. Typ. Max. Unit Condition Note
?2 -?1
Viewing Angle f70
-90 -+90 deg. Cr = 2.0 1,2
Contrast Ratio Cr -4--?=20?
f= 0?3
Response Time (rise) tR-110 -ms ?=20?
f= 0?4
Response Time (fall) tF-110 -ms ?=20?
f= 0?4
4.Definitionofopticalresponse
3.DefinitionofcontrastCr
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tF
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Time
Driving Voltage
SetPoint
Cr=(A/B)pNegative:P=-1
Positive:P=+1
Non-
Selected
Dots
Dots
selected

Chapter 1 Introduction to GDM12864A LCM 5
Interface Pin Connections
Pin
No. Symbol I/O Type
Description
1VSS Supply Ground
2VDD Supply Power supply
3V0 Supply LCD driver supply voltage
4D/I Data input/output pin of internal shift register
MS SHL DIO1 DIO2
H H Output Output
H L Output Output
L H Input Output
L L Output Input
5R/W Read or Write
RW Description
H Data appears at DB[7:0] and can be read by the CPU while
E= H CS1B=L,CS2B=L and CS3=H.
L Display data DB[7:0] can be written at falling edge of E
when CS1B=L, CS2B=L and CS3=H.
6EEnable signal
E Description
H Read data in DB[7:0] appears while E= “High”.
L Display data DB[7:0] is latched at falling edge of E.
7DB0
8DB1
9DB2
10 DB3
11 DB4
12 DB5
13 DB6
14 DB7
I/O Data bus [0~7]
Bi-directional data bus
15
16 CS1 CS2 IChip selection
When CS1=H,CS2=L, select IC1
When CS1=L,CS2=H, select IC2
17 RESETB IReset signal.
When RSTB=L
?1?ON/OFF register becomes set by 0.(display off)
?2?display start line register becomes set by 0 (Z-address 0 set, display
from line 0)
?3?After releasing reset , this condition can be changed only by
instruction.
18 VEE Power VEE is connected by the same voltage.
19 ABack-light anode
20 KBack-light cathode

Chapter 1 Introduction to GDM12864A LCM 6
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+0.3V*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
DC Electrical Characteristics(KS0107B)
(VDD= 4.5 to 5.5V, VSS=0V,VDD-VEE=8~17V,Ta= -30 to +85?)
Item Symbo
lCondition Min. Typ. Max. Unit Note
Operating voltage VDD -4.5 -5.5 V
VIH -0.7VDD -VDD *1Input voltage VIL -VSS -0.3VD
D
VOH IOH= -0.4mA VDD-0.4 --*2output voltage VOL IOL= 0.4mA --0.4
Input leakage current
ILKG VIN= VDD ~ VSS -1.0 -+1.0 ?A*1
OSC Frequency fosc Rf=47kO±2%
Cf=20pF±5% 315 450 585 kHz
On Resistance
(Vdiv-Ci) RONS VDD-VEE=17V
Load current±150?A--1.5 kO
IDD1 Master mode
1/128 Duty --1.0 mA *3Operating current
IDD2 Master mode
1/128 Duty --0.2 *4
Supply Current IEE Master mode
1/128 Duty --0.1 *5
Operating
fop1 Master mode External Duty 50 - 600 kHz
Frequency fop2 Slave mode 0.5 -1500
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=47kO, 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).

Chapter 1 Introduction to GDM12864A LCM 7
Electrical Absolute Maximum Ratings(KS0108B)
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*1,3Driver 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 voltage VDD -4.5 -5.5 V
VIH1 -0.7VDD -VDD *1Input High voltage VIH2 -2.0 -VDD *2
VIL1 -0-0.3VD
D*1Input 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 *3
Input leakage current ILKG VIN= VSS ~ VDD -1.0 -+1.0 ?A*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±100?A--7.5 kO*8
IDD1 During Display --0.1 mA *7Operating current IDD2 During Access
Access Cycle=1MHz --0.5 *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

64CH Common Driver For Dot Matrix LCD 8
©1998 Intech LCD Group Ltd.
CHAPTER 2
Driver IC Function Description
KS0107 Driver IC
64COM graphic driver for dot matrix LCD
Introduction
The KS0107B is an :CD driver LSI with 64 channel outputs for dot matrix liquid crystal graphic
display systems.
This device provides 64 shift registers and 64 output drivers.
It generates the timing signal to control the KS0108B (64 channel segment drover.).
The KS0107B is fabricated by low power CMOS high voltage process technology, and is composed
of the liquid crystal display system in combination with the KS0108B (64 channel segment drover.).