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零件编号 | KS0071B | ||
描述 | 32COM/60SEG DRIVER & CONTROLLER | ||
制造商 | Samsung semiconductor | ||
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1 Page
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
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
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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页数 | 18 页 | ||
下载 | [ KS0071B.PDF 数据手册 ] |
零件编号 | 描述 | 制造商 |
KS0071B | 32COM/60SEG DRIVER & CONTROLLER | Samsung semiconductor |
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