SPEC

No.

LCY-12T09602C

MODEL

No.

LS027B4DH01

PAGE

8

4．Input Terminal names and function

4-1) Input Terminal

Table 4-1

Terminal

Code

I／O

Function

Remark

1

SCLK

INPUT

Serial clock signal

2

SI

INPUT

Serial input signal

3

SCS

INPUT

Chip select signal

4

EXTCOMIN

INPUT

External COM inversion signal input (H: Active)

5

DISP

INPUT

Display ON/OFF signal

【Remark 4-2】

6

VDDA

POWER

Analalog power supply

7

VDD

POWER

Digital power supply

8

EXTMODE

INPUT

COM inversion mode switch terminal

【Remark 4-1】

9

VSS

POWER

Logic GND

10

VSSA

POWER

Analog GND

【Remark 4-1】 “H”=EXTCOMIN singal enabled, “L”=Serial input flag enabled.

When “H”, connect EXTMODE to VDD and when “L” to VSS.

【Remark 4-2】 ON/OFF for LCD display only. Memory data is maintained.

When “H”, displays with memory data, and when “L”, displays all white with memory data maintained.

4-2）Recommended Circuit

COM signal serial input

External COM signal input

EXTMODE=”L”

EXTMODE=”H”