[4]?
?
Pin?Description?and?Wiring?Diagram?
Pin?No.?
Symbol?
External?
Connection?
Function?Description
1?
VSS?
Power?Supply?
Ground
2?
VDD??Power?Supply?
Power?supply?for?logic?(+5.0V)?
3?
V0?
Adj.?Power?Supply?
Power?Supply?for?contrast
(approx?19.2V)
4?
A0?
MPU?
Register?Select
signal.
0:?data;?1:?instruction
5?
R/W?
MPU?
Read/Write?select?signal,??R/W=1:?Read??R/W=0:?Write??
6?
E?
MPU?
Operation?enable?signal.??Falling?edge?triggered.
7‐10?
DB0‐DB3?
MPU?
Four?low?order?bi‐directional?three‐state?data?bus?lines.?
These?four?are?not?used?during?4‐bit?operation.?
11‐14?
DB4‐DB7?
MPU?
Four?high?order?bi‐directional?three‐state?data?bus?lines.?
15?
/CS?
MPU?
Active?LOW?Chip?Select?Signal
16?
68/80?
MPU?
Interface?Select?Pin.??0:?8080?Family???1:?6800?Family?
17?
/RESET?
MPU?
Active?LOW?reset?signal
18?
VEE?
Power?Supply?
Positive
voltage
supply
output?(+20V)
19?
LED+??Power?Supply?
Power?supply?for?LED?Backlight
(+3.0V)
20?
LED‐?
Power?Supply?
Ground?for?Backlight
?
Recommended?LCD?connector:?2.54mm?pitch?pins?
Backlight?connector:??‐??????????????Mates?with:??‐?
?
?
?
?
相关PDF资料
NHD-240128WG-AFTI-VZ#C5 LCD MOD GRAPHIC 240X128 TRANSM
NHD-240128WG-ATFH-VZ# LCD GRAPHIC 240X128 TRANSFL
NHD-240128WG-ATMI-VZ# LCD MOD GRAPHIC 240X128 TRANSM
NHD-240128WG-BTFH-VZ# LCD MOD GRAPH 240X128 WH TRANSFL
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