[4]?
?
Pin?Description?and?Wiring?Diagram?
Pin?No.?
Symbol?
External?
Connection?
Function?Description
1?
Vss?
Power?Supply?
Ground
2?
VDD?
Power?Supply?
Supply?voltage?for?logic?(+5.0V)
3?
V0?
Power?Supply?
Power?supply?for?contrast?(approx.?0.5V)
4?
RS?
MPU?
Register?select?signal.?RS=0:?Command,?RS=1:?Data?
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?
LED+?
Power?Supply?
Power?supply?for?LED?Backlight?(+5.0V
via?on‐board?resistor)?
16?
LED‐?
Power?Supply?
Ground?for?backlight
?
Recommended?LCD?connector:?2.54mm?pitch?pins?
Backlight?connector:??‐‐‐??????????Mates?with:???‐‐‐?
?
?
?
?
?
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