TOPWAY

LCD Module User Manual

LM19264BBC

www.topwaysz.com

Document Name: LM19264BBC-Manual-Rev0.1.doc

Page: 4 of 10

1.4

Terminal Functions

Pin

No.

Pin

Name

I/O

Descriptions

1

VSS

Power

Negative Power Supply, Ground (0V)

2

VDD

Power

Positive Power Supply

3

V0

Power

LCD Contrast reference

4

VOUT Output Power Booster output for V0

5

RS

Input

RS = H; DB0 – DB7 = Display RAM data

RS = L; DB0 – DB7 = Instruction data

6

R/W

Input

7

E

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 will be written into the LCD

module at E = H L and device is being selected

8

DB0

:

:

15

DB7

I/O

Data bus;

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

16

/CS1

Input

Chip selection, enable access to left section of the LCD module (*1)

17

/CS2

Input

Chip selection, enable access to middle section of the LCD module (*1)

18

/CS3

Input

Chip selection, enable access to right section of the LCD module (*1)

19

/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

20

BLA

Power

Positive Power for LED backlight

21

BLK

Power

Negative Power for LED backlight

Note:

*1.

Display or instruction data could write into the LCD module’s driver/controllers individually

or at the same time.

Only read display or instruction data form one of the driver/controller in the LCD module at

a time, otherwise unexpected data collision may occur.