S6A0074 데이터 시트보기 (PDF) - Samsung

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S6A0074

34COM/80SEG DRIVER & CONTROLLER FOR DOT MATRIX LCD

Samsung 

34COM/80SEG DRIVER & CONTROLLER FOR DOT MATRIX LCD

S6A0074

BLOCK DIAGRAM

RESET

IM

RS/CS

E/SCLK

RW/SID

DB4-DB7

DB3-DB1

DB0-SOD

Vci

C1

C2

V5OUT2

V5OUT3

VDD

GND(VSS)

Power on Reset

(POR)

IE OSC1 OSC2

Oscillator

Timing Generator

8 Instruction

System

Register

Interface

(IR)

Serial

4-bit

8-bit

7

Input/

Output

Buffer

Data

8 Register

(DR)

Busy Flag

Instruction

Decoder

Address

Counter

8

8

7

Display Data

RAM (DDRAM)

80 x 8-bit

7

8

3

7

8

8

34-bit

Shift

Register

COM0-

Common COM33

Driver

80-bit

Shift

Register

80-bit

Latch

Circuit

COM1-

Segment COM80

Driver

LCD Driver

Voltage Selector

Voltage Converter

Segment

RAM

(SEGRAM)

16 bytes

Character

Generator

RAM

(CGRAM)

64 bytes

Character

Generator

ROM

(CGROM)

9600 bits

Cursor and

Blink

Controller

5

5/6

Parallel/Serial Converter and

Smooth Scroll Circuit

V1 - V5

3

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