LM25632AFW datasheet(4/10 Pages) TOPWAY

4 / 10 page

TOPWAY

LCD Module User Manual

LM25632AFW

URL: www.topwaydisplay.com

www.topwaysz.com

Document Name: LM25632AFW-Manual-Rev0.2.DOC

Page: 4 of 10

1.4

Terminal Functions

No.

Name

I/O

Descriptions

VSS

Power Negative Power Supply, Ground (0V)

VDD

Power Positive Power Supply

Not Connection

Input

RS = H; DB0 – DB7 = Display RAM data

RS = L; DB0 – DB7 = Instruction data

R/W

Input

In read mode

R/W = H;

Data read form the LCD module,

data appears at DB0 – DB7 and can be read by the host

while, E = H and the device is being selected

In write mode

R/W = L;

Data write to the LCD module,

data appears at DB0 – DB7 and will be written into the LCD module

at E = H L and device is being selected

DB0

I/O

DB7

I/O

Data bus:

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

CS1

Input

CS2

Input

Chip selection, enable access to each section of the LCD module

CS1

CS2

Function

Enable access of the S1~S64 and S129~S192 Section

of the LCD module

Enable access of the S65~S128 and S193~S256 Section

of the LCD module

Enable access to the hole Section of the LCD module

Disable all the access to the LCD module

/RST

Input

Reset signal

/RST = L,

Display off

display start line register becomes 0

no command or instruction data could be accepted

/RST = H,

Normal running

VEE

Power Power Booster Input

BLA

Power Positive Power Supply for LED backlight

BLK

Power Negative Power Supply for LED backlight

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