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Samsung semiconductor |
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KS0708
PRELIMINARY SPECIFICATION
64COM/128SEG DRIVE FOR DOT MATRIX LCD
INTRODUCTION
KS0708 is a single-chip LCD driver LSI for liquid crystal dot-matrix graphic display systems. It incorporates
192 driver circuit for 64 commom and 128 segment and 64x128-bit bit-map RAM. It is capable of interfac-
ing with the microprocessor, accepting 8-bit parallel display data directly from it, and storing data in an
onechip Display Data RAM. And it generates internal signals for using LCD driving independent of micro-
processor clock.
FEATURES
¡Ü 64-Channel COMMON & 128-Channel SEGMENT Driver for DOT matrix LCD
¡Ü On-chip display data RAM : 64 X 128 = 8192bits
¡Ü Display data is stored in display data RAM from MPU
- RAM bit data : ON(1), OFF(0)
¡Ü Internal timing generator circuit for dynamic display
¡Ü 8-bit parallel bi-directional data bus
¡Ü Applicable LCD duty : 1/64
¡Ü Power supply voltages : Power supply voltage range : 4.5 ~ 5.5 V(VDD)
LCD Driving voltage range : 8.0 ~ 17.0 V(VLCD = VDD - VEE)
¡Ü Wide operating temperature range : Ta = -30 ¡É ~ 85¡É
¡Ü High Voltage CMOS process
¡Ü Package : available bumped chip
DataSheet4U.com
DataShee
DataSheet4U.com
DataSheet 4 U .com
M/M-96-D001
97-09-19
1
www.DataSheet4U.com
KS0708
BLOCK DIAGRAM
PRELIMINARY SPECIFICATION
64COM/128SEG DRIVE FOR DOT MATRIX LCD
VDD
V0
V1
V2
V3
V4
V5
VEE
VSS
FS
C1 ... C32 S1 S2 ... S63 S64 S65 S66 ... S127 S128 C33...C64
... ...
... ...
32
CHANNEL
COMMON
64 CHANNEL
SEGMENT
DRIVER
32BIT
SHIFT REG
64 CHANNEL
SEGMENT
DRIVER
32
CHANNEL
COMMON
DRIVER
32BIT
SHIFT REG
DISPLAY
TIMING
GENERATOR
CIRCUIT
64-BIT DATA LATCH 64-BIT DATA LATCH
et4U.com
C
CR
R
OSCILLATOR
DISPLAY DATA RAM
DISPLAY DATA RAM
64 X 64 = 4,D0a96taBSIhTeSet4U.c6o4mX 64 = 4,096 BITS
ADC
Column Decoder
RAM Address register
Column Decoder
RAM Address register
SHL
PCLK2
DataShee
STATUS
REGISTER
INSTRUCTION INSTRUCTION
DECODER
DECODER
ISTATUS
REGISTER
I/O BUFFER
I/O REGISTER
I/O BUFFER
DB0 ~ DB7
4
DataSheet4U.com
DataSheet 4 U .com
M/M-96-D001
97-09-19
2
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