ks0070b Samsung Semiconductor, Inc., ks0070b Datasheet - Page 10

• Manufacturer Part Number: ks0070b
• Description: 16com / 80seg Driver & Controller For Dot Matrix Lcd
• Manufacturer: Samsung Semiconductor, Inc.

KS0070B
PAD DESCRIPTION
COM1 ~ COM16
(Normal/Mirror)
SEG1 ~ SEG80
(34~2, 128~82/
(42~46/62~58)
(66~81/38~23)
(55~58/49~46)
(59~62/45~42)
70~128, 2~22)
(37,36/67,68)
(47,48/57,56)
TEST (63/41)
OSC1,OSC2
VDD (54/50)
VSS(35, 69)
CLK1,CLK2
RW (52/52)
RS (51/53)
DB0~DB3
DB4~DB7
M (49/55)
D (50/54)
E (53/51)
Pad No.
V1 ~ V5
(OSC1)/
(OSC2)
Output
Output
Output
Output
Output
Output
Output
Output
Input/
Input
Input
Input
Input
Input
Input
-
/
Read/Write enable
Latch (CLK1)/Shift
Alternated signal
Common output
Extension driver
Segment output
Register select
for LCD driver
Power supply
Data bus 0~7
(CLK2) clock
Display data
16COM / 80SEG DRIVER & CONTROLLER FOR DOT MATRIX LCD
Read/Write
Oscillator
interface
Test Pin
Name
output
Bias voltage level for LCD driving.
Segment signal output for LCD drive.
Common signal output for LCD drive.
When using internal oscillator, connect
external Rf resistor.
If external clock is used, connect it to
OSC1.
Each outputs extension driver latch clock
and extension driver shift clock.
Outputs the alternating signal to convert
LCD driver waveform to AC.
Output extension driver data (the 41st
dot's data)
Used as register selection input.
When RS = "1", Data register is selected.
When RS = "0", Instruction register is
selected.
Used as read/write selection input. When
RW = "1", read operation. When RW =
"0", write operation.
Used as read. Write enable signal.
When 8-bit bus mode, used as low order
bidirectional data bus.
During 4-bit bus mode open these pins.
When 8-bit bus mode, used as high
order bidirectional data bus. In case of
4-bit bus mode, used as both high and
low order.
DB7 used for Busy Flag output.
This pin must be fixed to VDD or open.
For logical circuit (+3 V, + 5 V)
Description
0 V (GND)
Extension
Extension
Extension
Interface
oscillator
External
resistor/
(OSC1)
Supply
Power
driver
driver
driver
MPU
MPU
MPU
MPU
MPU
LCD
LCD
–