Datasheet

DEM 20231 SYH-PY Product Specification
Version: 2 PAGE:4
5. PIN ASSIGNMENT
Pin No. Symbol
Function
1 VSS Ground terminal of module
2 VDD Supply terminal of module +5 V
3 V0 Power Supply for LCD
4 RS Register Select RS = 0… Instruction Register; RS = 1… Data Register
5 R/W Read / Write R/W = 1… Read; R/W = 0… Write
6 E Enable
7 DB0
8 DB1
9 DB2
10 DB3
11 DB4
12 DB5
13 DB6
14 DB7
Bi-directional Data Bus, Data Transfer is performed is once , thru DB0~DB7 , in
the case of interface data . Length is 8-bits; and twice , thru DB4~DB7 in the case
of interface data length is 4-bits. Upper four bits first then lower four bits .
15
LED-(K)
16
LED+(A)
LED power supply terminals.