Datasheet

DEM 20485 FGH-PW Product Specification
Version: 1.1.0 PAGE:
4
5. PIN ASSIGNMENT
Pin No. Symbol
Function
1 VSS
Ground terminal of module
2 VDD
Power supply of module +5V
3 V0 Power Supply for LCD
4 RS
Register Select
RS=0…Instruction Register
RS=1…Data Register
5 R/W
Read or Write
R/W=1…Read
R/W=0…Write
6 E Enable signal
7 DB0
8 DB1
9 DB2
10 DB3
11 DB4
12 DB5
13 DB6
14 DB7
Bi-directional Data Bus, Data Transfer is performed
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) Place also refer to 6.1 PCB Drawing and description
16 LED-(A) Place also refer to 6.1 PCB Drawing and description
6. PCB DRAWING AND DESCRIPTION
DEM20485
J4
J3
J5
K
A
J6
U3
R7
R8
J2
U2
16
R
5
J1
U1
R3
R
6
R2
R1
R4
1