GDM12864A View Datasheet(PDF) - Unspecified

Part Name

Description

Manufacturer

GDM12864A

Liquid Crystal Display Module

Unspecified 

Chapter 1 Introduction to GDM12864A LCM 5

Interface Pin Connections

Pin

Symbol I/O Type Description

No.

1

VSS

Supply Ground

2

VDD

Supply Power supply

3

V0

Supply LCD driver supply voltage

4

D/I

Data input/output pin of internal shift register

MS SHL DIO1 DIO2

5

R/W

H

H

H

L

L

H

L

L

Read or Write

Output

Output

Input

Output

Output

Output

Output

Input

6

E

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.

Enable signal

7

DB0

I/O

8

DB1

9

DB2

10

DB3

11

DB4

12

DB5

13

DB6

14

DB7

15

CS1

I

16

CS2

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.

Data bus [0~7]

Bi-directional data bus

Chip selection

When CS1=H,CS2=L, select IC1

17

RESETB I

When CS1=L,CS2=H, select IC2

Reset 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

19

A

20

K

VEE is connected by the same voltage.

Back-light anode

Back-light cathode

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