LM240128DFW datasheet(4/12 Pages) TOPWAY

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TOPWAY

LCD Module User Manual

LM240128DFW

URL: www.topwaydisplay.com

www.topwaysz.com

Document Name: LM240128DFW-Manual-Rev0.1

Page: 4 of 12

1.4

Terminal Functions

Pin No.

Name

I/O

Descriptions

Power

Frame Ground, connect to VSS if necessary

VSS

Power

Negative power supply,0V

VDD

Power

Positive power supply

No connection, leave open

/WR

Input

/WR=L H, /RD=H;

Data or Instruction latch into the LCD module

/RD

Input

/WR=H, /RD=L;

Data or Status read form the LCD module

/CS

Input

Chip Select

/CS=L, enable access to the LCD module

/CS=H, disable access to the LCD module

C/D

Input

C/D = H, Transferring the Display Data

C/D = L, Transferring the Control Data

No connection, leave open

/RST

Input

Reset signal

/RST = L, Initialization is executed

/RST = H, Normal running.

DB0

DB7

I/O

8-bit Data bus;

Three state I/O terminal for display data or instruction data

when /CS0=H,

DB0~DB7=High Impedance

No connection, leave open

BLA

Power

Positive power for LED backlight

BLK

Power

Negative power for LED backlight

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