S6A0079 데이터 시트보기 (PDF) - Samsung

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S6A0079

34COM/120SEG DRIVER & CONTROLLER FOR DOT MATRIX LCD

Samsung 

S6A0079

BLOCK DIAGRAM

34COM/120SEG DRIVER & CONTROLLER FOR DOT MATRIX LCD

RESET

TEST2

RS

E

RW

DB4-DB7

DB3-DB1

DB0

Vci

C1

C2

V5OUT2

V5OUT3

VDD

GND(VSS)

Power on Reset

(POR)

TEST1 OSC1 OSC2

Oscillator

Timing Generator

System

Interface

4-bit

8-bit

8 Instruction

Register

(IR)

7

Input/

Output

Buffer

Data

8 Register

(DR)

Busy Flag

Voltage Converter

Instruction

7

Decoder

Address

Counter

Display Data

RAM (DDRAM)

96 x 8-bit

7

8

8

34-bit

Shift

Register

COM0-

Common COM33

Driver

120-bit

Shift

Register

120-bit

Latch

Circuit

SEG1-

Segment SEG120

Driver

7

8

8

Character

Generator

RAM

(CGRAM)

64 bytes

5

Character

Generator

ROM

(CGROM)

9600 bits

Cursor and

Blink

Controller

5

Parallel/Serial Converter and

Smooth Scroll Circuit

LCD Driver

Voltage Selector

V1 - V5

2

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