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PDF ( 数据手册 , 数据表 ) KS0071B

零件编号 KS0071B
描述 32COM/60SEG DRIVER & CONTROLLER
制造商 Samsung semiconductor
LOGO Samsung semiconductor LOGO 


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KS0071B 数据手册, 描述, 功能
KS0071B
32COM/60SEG DRIVER & CONTROLLER FOR DOT MATRIX LCD
INTRODUCTION
The KS0071B is a dot matrix LCD controller & driver LSI which is fabricated by low power CMOS technology,
designed to drive a split screen dot matrix LCD display of 1 line  24 characters or 2 line  24
characters with 57 dots format.
FEATURES
Character type dot matrix single chip LCD controller & driver
High voltage LCD driver 32 common and 60 segment signal output.
Easy interface with a 4 bit or 8 bit MPU.
Internal memory
-. Character generator ROM : 8400bits ( 240 characters for 57 dots )
-. Character generator RAM : 512 bits ( 8 patterns for 57 dots )
-. Display data RAM : 640 bits ( 808 bits for 80 characters )
Maximum display characters
-. 1 line, 1/16 duty, 57 dots + cursor, 24 characters.
-. 2 line, 1/32 duty, 57 dots + cursor, 24 characters .
A customer character pattern can be programmable by mask option.
. The special character pattern can be programmable by character generator RAM directly.
It is possible to read both character generator and display data RAM from MPU.
Useful 11 code instruction set
Automatic power on reset function
On chip generation of LCD supply voltage from voltage doubler ( external supply also possible )
.Voltage doubler generates about double from single power supply ( 5V)
High contrast display can be performed though the simple power supply circuits.
On chip oscillator requires external resistor ( external clock also possible )
Power supply voltage: +5V10%, +3V20%
Supply voltage for display: -5V
Package outline: 118 TAB or bare chip available.







KS0071B pdf, 数据表
KS0071B
32COM/60SEG DRIVER & CONTROLLER FOR DOT MATRIX LCD
* 4) Voltage doubler measuring circuit
* 5) Supply current measuring circuit
+ 5V
VDD VC1
C1
C2
V5OUT
VSS
0V
+
-
+
4.7uF
-
A
- 10uF
+ (4.7uF)
RL = 10
(3)
( ) = + 3V Operation
(*3, *4)
A
VDD
VCI
RS,RW
DB0-7
C1
OSC1
OSC1
C2
V5
E V5OUT
VSS
+ 5V
+
-
+
- 4.7uF
-
10uF
+
* 6) LCD driving voltage V1, V2, V3,V4, V5 ( VLCD = VDD - V5 )
Power
Duty
Bias
VDD (COM / SEG select voltage)
V1 (COM non select voltage)
V2 (SEG non select voltage)
V3 ( SEG non select voltage)
V4 (COM non select voltage)
V5 (COM / SEG select voltage)
1/16 duty
1/5 bias
VDD
VDD-(1/5) VLCD
VDD-(2/5) VLCD
VDD-(3/5) VLCD
VDD-(4/5) VLCD
VDD-VLCD
1/32 duty
1/6.7 bias
VDD
VDD-(1/6.7) VLCD
VDD-(2/6.7) VLCD
VDD-(4.7/6.7) VLCD
VDD-(5.7/6.7) VLCD
VDD-VLCD







KS0071B equivalent, schematic
KS0071B
32COM/60SEG DRIVER & CONTROLLER FOR DOT MATRIX LCD
APPLICATION CIRCUIT
1) LCD driving voltage is generated by KS0071B ( voltage doubler )
VDD
( 1/6.7 bias, 1/32 duty )
B rig h t
control
R
R
2.7R
R
R
10uF
+
-
-
+
4.7uF
+
-
Rf = 912%
Open
VDD
V1
V2
V3
V4
V5
V5OUT
C16
C9
C1
KS0071B
VCI
VSS
C1
C8
C17
C2
OSC1
OSC2
T1, T2
C24
MPU
RS
RW
E
DB0
..
..
..
DB7
S1
S60
C32
C25
LCD Panel
(24 CH  2 line)










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