參數(shù)資料
型號: DMC40457
廠商: Optrex America, Inc.
英文描述: LCD Module
中文描述: 液晶顯示模塊
文件頁數(shù): 7/15頁
文件大小: 166K
代理商: DMC40457
DMC40457 (AA) No.99-0117
OPTREX CORPORATION
Page 7/15
OPTREX
4.I/O Terminal
4.1.Pin Assignment
No.
Symbol
Level
Function
1
D7
H / L
Data Bus Line
2
D6
H / L
Data Bus Line
3
D5
H / L
Data Bus Line
4
D4
H / L
Data Bus Line
5
D3
H / L
Data Bus Line / Non-connection at 4-bit operation
6
D2
H / L
Data Bus Line / Non-connection at 4-bit operation
7
D1
H / L
Data Bus Line / Non-connection at 4-bit operation
8
D0
H / L
Data Bus Line / Non-connection at 4-bit operation
9
E1
H,H
L
Enable Signal (No pull-up Resister)
10
R/W
H / L
Read/Write Select Signal H : Read L : Write
11
RS
H / L
Register Select Signal
12
V
EE
Power Supply for LCD Drive
13
V
SS
Power Supply (0V, GND)
14
V
CC
Power Supply for Logic
15
E2
H,H
L
Enable Signal (No pull-up Resister)
16
NC
Non-connection
4.2.Example of Power Supply
It is recommended to apply a potentiometer for the contrast adjust due to the tolerance
of the driving voltage and its temperature dependence.
MODULE
VCC
VEE
VSS
VCC (+Voltage)
VR=10
20K
Ω
VSS (0V)
VR
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