S6A0092 Datasheet, PDF (7/54 Pages) Samsung semiconductor – 80 SEG / 26 COM DRIVER & CONTROLLER FOR STN LCD

80 COM / 26 COM DRIVER & CONTROLLER FOR STN LCD
BLOCK DIAGRAM
S6A0092
RESETB
PS
IF
CK
Oscillator
Timing Generator
MI
CSB
RS
RW_WR
E_RD
DB7
(SI)
DB6
(SCL)
DB5-
DB4
DB3-
DB0
Parallel
8
Instruction
Register
(IR)
Interface
Instruction
Decoder
4 bit/8 bit
Address
Display
Counter
Data RAM
(DDRAM)
Serial
8
Data
Register
Interface
(DR)
512 bits
7
8 ^{Data Output}
Register
8
8
Input Buffer
(OR)
8
5
8
25 bits
Shift
Register
COM1-
Common _COM24
Driver
COM I1
COM I2
80 bits
Shift
Register
80 bits
Latch
Circuit
SEG1-
Segment SEG80
Driver
Icon
RAM
80 bits
Character
Generator
RAM
(CGRAM)
320 bits
5
Character
Generator
ROM
(CGROM)
10240 bits
5
Cursor
and
Blink
Controlle
r
LCD
Driver
Voltage
Selector
VDD
GND
Segment Data Conversion
Voltage Converter
LCD Driving Power Circuit
Voltage Regulator Voltage Follower & Bias Resistor
CAP1+ CAP1- CAP2+ CAP2- VOUT V0 VEXT REF
VR V1 V2 V3 V4
Figure 1. Block Diagram
DIRS
3