[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.?‐0.5V)
4?
A0?
MPU?
Register?select?signal.?A0=0:?Command,??A0=1:?Data?
5?
R/W?
MPU?
Read/Write?select?signal,?R/W=1:?Read??R/W:?=0:?Write?
6?
E1?
MPU?
Operation?enable?signal.??Falling?edge?triggered,?SEG?(1~60)?
7?
E2?
MPU?
Operation?enable?signal.??Falling?edge?triggered,?SEG?(61~120)?
8?
RST?
MPU?
Active
low
Reset
9‐12?
DB0‐DB3?
MPU?
Four?low?order?bi‐directional?three‐state?data?bus?lines.??These?four?are?
not?used?during?4‐bit?operation.?
13‐16?
DB4‐DB7?
MPU?
Four?high?order?bi‐directional?three‐state?data?bus?lines.??
17?
LED+?
Power?Supply?
Power
supply?for?LED?Backlight?(+5.0V
via?on‐board?resistor)??
18??
LED‐?
Power?Supply?
Ground?for
Backlight
?
Recommended?LCD?connector:?18pos,?1.0mm?pitch?FFC?Connector,?Molex?p/n:?52271‐1879?or?equivalent??
Backlight?connector:?on?LCD?Connector?????Mates?with:??‐?
?
?