OCULAR 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]

XIAMEN OCULAR OPTICS CO., LTD. 2

SOUTH2/F, GUANGXIA BUILDING, TORCH HIGH-TECH DEVELOPMENT ARER,
XIAMEN 361006.P.R.CHINA TEL: [phone] FAX: [phone]

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

XIAMEN OCULAR OPTICS CO., LTD. 3

SOUTH2/F, GUANGXIA BUILDING, TORCH HIGH-TECH DEVELOPMENT ARER,
XIAMEN 361006.P.R.CHINA TEL: [phone] FAX: [phone]

Ø Mechanical diagram

Ø Absolute 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

Ø Interface pin connections

Pin No. Symbol Level Description

1 Vdd 5.0V Supply voltage for logic and LCD (+)
2 Vss 0V Ground
3 V0 - Operating voltage for LCD (variable)

4~11 DB0~DB7 H/L Data bit 0~7

12 CS2 L Chip select signal for IC2
13 CS1 L Chip select signal for IC1
14 /RES L Reset 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 E H, HL Chip enable signal
18 VEE - Operating voltage for LCD (variable)
19 A 4.2V Backlight power supply
20 K 0V Backlight power supply

XIAMEN OCULAR OPTICS CO., LTD. 4

SOUTH2/F, GUANGXIA BUILDING, TORCH HIGH-TECH DEVELOPMENT ARER,
XIAMEN 361006.P.R.CHINA TEL: [phone] FAX: [phone]

Ø Optical characteristics

STN Type display module (Ta=25 , Vdd=5.0V)

Item Symbol Condition Min. Typ. Max. Unit

-60 - 35

Viewing angle

ф

Cr 2

-40 - 40

deg

Contrast ratio (rise) Cr - 6 -

Response time (fall) Tr - - 150 250 ms

Tr - - 150 250 ms

Ø Electrical 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 *1,2 Driver supply voltage
V

LCD

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: VDDV0 V1 V2 V3 V4 V5 VEE