128*32 FSTN LCD Module(with Backlight), 128x32 Monochrome LCD Display, Dot Matrix FSTN LCD, NT7538H

Item

Symbol

Min.

Max.

Unit

Storage Temperature

TST

-30

+80

°C

Operating Ambient Temperature

TOP

-20

+70

°C

Item

Symbol

Min.

Typ.

Max.

Unit

Power Supply Voltage

V_DD

-

3.0

-

V

Power Supply Current

I_DD

-

1.0

1.4

mA

Item

Symbol

Min.

Typ.

Max.

Unit

Condition

LED Forward Voltage

V

-

-

5

V

-

LED Forward Current

I

-

(60)

-

mA

-

LED Reverse Current

I_R

-

-

-

mA

-

Color

White

Pin No.

Symbol

Description

1

/CS1

This is the chip select. When /CS1=”L” and CS2=”H”, Then the chip select becomes active data/command I/O is enabled.   

2

/RES

Reset pin.

3

A0

A0=”H”：indicate that D0 toD7 are display data.

A0=”L”：indicate that D0 toD7 are control data.

4

/WR

Read/Write control pin.

5

RD

When connected to an 8080 MPU, it is active LOW. This pad

is connected to the /RD signal of the 8080MPU, and the

NT7538 data bus is in an output status when this signal is “L”.

When connected to a 6800 Series MPU, this is active HIGH.

This is used as an enable clock input of the 6800 series

MPU

6

DB0

Data bus

7

DB1

8

DB2

9

DB3

10

DB4

11

DB5

12

DB6

13

DB7

14

VDD

Power supply

15

VSS

Power supply （GND）

16

VOUT

DC/DC voltage converter output.

17

CAP3+

Capacitor 3+ pad for Internal DC/DC voltage converter.

18

CAP1-

Capacitor 1- pad for Internal DC/DC voltage converter.

19

CAP1+

Capacitor 1+ pad for Internal DC/DC voltage converter.

20

CAP2+

Capacitor 2+ pad for Internal DC/DC voltage converter.

21

CAP2-

Capacitor 2- pad for Internal DC/DC voltage converter.

22

V1

LCD driver supply voltages. The voltage determined by LCD cell is impedance-converted by a resistive driver or an operation amplifier for application. Voltages should be the following relationship:

V0≥V1≥V2≥V3≥V4≥VSS

23

V2

24

V3

25

V4

26

V0