ST7920-0C データシートの表示（PDF） - Sitronix Technology Co., Ltd.

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ST7920-0C

Chinese Fonts built in LCD controller/driver

Sitronix Technology Co., Ltd. 

ST7920

System Block Diagram

RESI

RESO

Reset

Circuit

CLK

PSB

RS

MPU

RW

Interface

E

Instruction

Register (IR)

Instruction

Decoder

Display

Data RAM

(DDRAM)

64 x 16 bits

DB4 to

DB7

DB0 to

DB3

Input/

Output

Buffer

Address

Counter

Data

Register

(DR)

Busy

Flag

Timing

Generator

CL1

CL2

M

DOUT

33/49-bit

shift

register

Common

Signal

Driver

COM1 to

COM32

64-bit

shift

register

64-bit

latch

circuit

Segment

Signal

Driver

SEG1 to

SEG64

LCD Drive

Voltage

Selector

Graphic

RAM

(GDRAM)

1024 x 16

bits

Half size

Character

ROM

(HCGROM)

1024x16 bits

Character

Generator

RAM

(CGRAM)

1024 bits

Character

Generator

ROM

(CGROM)

2M bits

Cursor

Blink

Scroll

Controller

Parallel/Serial converter

Vss

and

Attribute Circuit

VDD

XRESET

V0 V1 V2 V3 V4

XOFF

V4.0

3/49

2008/08/18

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