LCD Display Module 40x4 Character 404A

40X4 LCD 204A     40 Characters X 4 Line (Row)

PIN No.

Symbol

Function

1

DB7

Data bus line

2

DB6

Data bus line

3

DB5

Data bus line

4

DB4

Data bus line

5

DB3

Data bus line

6

DB2

Data bus line

7

DB1

Data bus line

8

DB0

Data bus line

9

E1

HàL ENABLE SIGNAL IC1

10

R/W

H/L READ/WRITE

11

RS

REGISTER SELECT

12

Vee

CONTRAST ADJUSTMENT

13

Vss

GROUND

14

Vcc

+5V

15

E2

HàL ENABLE SIGNAL IC2

16

NC/Vee

NC/Negative Voltage output

17

A

+5V

18

K

Ground  - 0V