Datasheet

DEM 40271 SYH-LY Product Specification

Version:

.1.

PAGE:

4. EXTERNAL DIMENSIONS

5. PIN ASSIGNMENT

Pin No. Symbol Function

1 VSS

Ground terminal of module.

2 VDD

Power terminal of module 5.0V.

3 V0

Power Supply for liquid crystal drive.

4 RS

RS = 0…Instruction register

RS = 1…Data register

5 R/W

Read /Write

R/W = 1…Read

R/W = 0…Write

6 E

Read/Write 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 to

DB7, in the case of interface data. Length is 8-bits; and twice, thru DB4

to 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)

Please also refer to 6. PCB drawing and description.