S6A0074 Datasheet, PDF (3/68 Pages) Samsung semiconductor – 34COM/80SEG DRIVER & CONTROLLER FOR DOT MATRIX LCD

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