GMD1620BLY Просмотр технического описания (PDF) - Unspecified

Номер в каталоге

Компоненты Описание

производитель

GMD1620BLY

Stanley dot matrix character type LCD module

Unspecified 

GMD1620BLY

GMD1621BLY

◆ELECTRICAL CHARACTERISTICS ‑ TERMINAL FUNCTIONS

CON1、CON2

Pin No.

Signal

I/O

Function

１

ＶＳＳ

GND：0V

２

ＶＤＤ

+5V

３

ＶＥＥ

LCD driving voltage

４

ＲＳ

５

Ｒ／Ｗ

Signal to select registers

Ｉ

“0” : Instruction register (for write)

Busy flag ; address counter (for read)

“1” : Data register (for read and write)

Signal to select read (R) and write (W)

Ｉ

“0” : write MPU → LCD Module

“1” : Read MPU ← LCD Module

６

Ｅ

Ｉ Operation start signal for data read or write.

７

８

９

１０

ＤＢ０

ＤＢ１

ＤＢ２

ＤＢ３

Ｉ／Ｏ

Data bus of lower 4 bits having bi‑directional

port. Used for data transfer between the MPU and

the module. These four are not used during 4bit

operation.

１１

１２

１３

１４

ＤＢ４

ＤＢ５

ＤＢ６

ＤＢ７

Ｉ／Ｏ

Data bus of higher 4 bits having bi‑directional

port. Used for data transfer between the MPU and

the module. DB7 can be used as a BUSY flag.

１５

(A : LED. +)

*1 (CON1 only)

１６

(K : LED. ‑)

*1 (CON1 only)

NOTE: In the module, the data can be sent in either 4‑bit 2‑operation or 8‑bit 1‑operation

so that it can interface to both 4 and 8 bit MPU’s.

1) When interface data is 4bits long, data is transferred using only 4 buses of

DB4〜DB7 and DB0〜DB3 are not used.

Data transfer between the module and the MPU complete when 4‑bit data is

transferred twice. Data of the higher 4bits(contents of DB4〜DB7 when

interface data is 8bits long) is transferred first and lower 4bits

(contents of DB0〜DB3 when interface data is 8bits long).

2) When interface data is 8bits long, data is transferred using 8 data buses of

DB0〜DB7.

*1: If you connect the “CON3‑No.1(A) through‑hole (front side PWB)” to “ back side PWB

through‑hole (A), and also connect “CON3‑No.2(K) through‑hole (front side PWB)” to “ back

side PWB through‑hole (K), in that case CON1‑No.15 and No.16 are able to use as terminal

of LED backlight.

CON3

Pin No.

1

2

Signal

A : LED. +

K : LED. ‑

I/O

Function

Power supply for LED backlighting +

Power supply for LED backlighting ‑

2005.05.25

Page.4

Share Link: