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PDF SC75823B Data sheet ( Hoja de datos )
| Número de pieza | SC75823B | |
| Descripción | 1/3 DUTY GENERAL-PURPOSE LCD DRIVER | |
| Fabricantes | Silan Microelectronics | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de SC75823B (archivo pdf) en la parte inferior de esta página. Total 16 Páginas | ||
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Silan
Semiconductors
SC75823
1/3 DUTY GENERAL-PURPOSE LCD
DRIVER
DESCRIPTION
The SC75823 is a general-purpose LCD driver that can be used
for frequency display in microprocessor-controlled radio receives
and in other display applications. In addition to being able to directly
drive up to 156 LCD segments.
QFP-64-14x14-0.8
FEATURES
• Supports both 1/3 duty 1/2 bias and 1/3 duty 1/3 bias LCD
drive of up to 156 segments under serial data control.
• Serial data input supports CCB format communication with the
system controller.
LQFP-64-10 x 10-0.5
• Serial data control of the power-saving mode based backup
function and all the segments forced off function.
• High generality since display data is displayed directly without ORDERING INFORMATION
decoder intervention.
Device
Package
• The INH pin can force the display to the off state.
SC75823A LQFP-64-10 X 10-0.5
• The LCD drive bias voltage can be provided internally or SC75823B QFP-64-14 X 14-0.8
externally.
• Power supply voltage: 4.5 to 6.0V
BLOCK DIAGRAM
COM1 COM2 COM3
S52 S51
VDD1
VDD2
INH
Common Driver
OSC
Clock
Generator
Latch & Driver
Shift Register
Address
Detector
S1
DI CL CE
VDD VSS
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
Rev: 1.1 2002.03.04
1
1 page  
Silan
Semiconductors
1.When CL is stopped at the low level
CE
t¶H
t¶L
CL VIH
50%
VIL
tr tf
VIH
DI
VIL
VIH
VIL
tds tdh
Fig 2
VIH
VIL
tcp
VIH
tcs
2.When CL is stopped at the high level
CE
CL VIH
50%
VIL
DI
t¶L t¶H
tr tf
VIH VIH
VIL VIL
tds tdh
VIH
VIH
tcp
VIL
tcs
SC75823
VIL
VIH
tch
VIL
VIH
tch
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
Rev: 1.1 2002.03.04
5
5 Page 
Silan
Semiconductors
TIMING DIAGRAM
1/2 Bias , 1/3 Duty Drive Technique
COM1
COM2
COM3
LCD driver output when all LCD
segments corresponding to COM1,
COM2, and COM3 are turnned off.
LCD driver output when only LCD
segments corresponding to COM1,
are on.
LCD driver output when only LCD
segments corresponding to COM2,
are on.
LCD driver output when only LCD
segments corresponding to
COM1and COM2 are on.
LCD driver output when only LCD
segments corresponding to COM3
are on.
LCD driver output when LCD
segments corresponding to COM1
and COM3 are on.
LCD driver output when LCD
segments corresponding to COM2
and COM3 are on.
LCD driver output when all LCD
segments corresponding to
COM1,COM2, and COM3 are on.
SC75823
VDD
VDD1, VDD2, (1/2 VDD)
VSS
VDD
VDD1, VDD2
VSS
VDD
VDD1, VDD2
VSS
VDD
VDD1, VDD2
VSS
VDD
VDD1, VDD2
VSS
VDD
VDD1, VDD2
VSS
VDD
VDD1, VDD2
VSS
VDD
VDD1, VDD2
VSS
VDD
VDD1, VDD2
VSS
VDD
VDD1, VDD2
VSS
VDD
VDD1, VDD2
VSS
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
Rev: 1.1 2002.03.04
11
11 Page | ||
| Páginas | Total 16 Páginas | |
| PDF Descargar | [ Datasheet SC75823B.PDF ] | |
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| Número de pieza | Descripción | Fabricantes |
| SC75823 | 1/3 DUTY GENERAL-PURPOSE LCD DRIVER | Silan Microelectronics |
| SC75823A | 1/3 DUTY GENERAL-PURPOSE LCD DRIVER | Silan Microelectronics |
| SC75823B | 1/3 DUTY GENERAL-PURPOSE LCD DRIVER | Silan Microelectronics |
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