SC75823A 데이터 시트보기 (PDF) - Silan Microelectronics
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SC75823A Datasheet PDF : 16 Pages
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Silan
Semiconductors
SC75823
PIN DESCRIPTION
Pin No Symbol
I/O
1-52 S1 to S52
O
53
COM1
54
COM2
O
55
COM3
61
OSC
I/O
62
CE
63
CL
I
64
DI
57
INH
I
58
VDD1
I
59
VDD2
I
56
VDD
--
60
VSS
--
Description
Segment outputs for displaying the display data transferred by serial data
input.
Common driver outputs. The frame frequency fO is given by:
fO=(fOSC/384)Hz
Oscillator connection
An oscillator circuit is formed by connecting an external resistor and
capacitor to this pin.
Serial data transfer inputs. These pins are
connected to the control microprocessor.
CE: chip enable
CL: synchronization clock
DI: transfer data
Display off control input
INH =low (VSS)……Display forced off (S1 to S52, COM1 to COM3=low)
INH =high (VDD)……Display on
note that serial data transfers can be performed when the display is forced
off.
Used for the 2/3 bias voltage when bias voltage are provided externally.
Connect to VDD2 when 1/2 bias is used.
Used for the 1/3 bias voltage when bias voltage are provided externally.
Connect to VDD1 when 1/2 bias is used.
Power supply. Provide a voltage of between 4.5 and 6.0V
Ground. Connect this pin to the system ground.
FUNCTION DESCRIPTION
Serial data transfer format
1. When CL is stopped at the low level
CE
CL
DI
1
0
0
0
0
0
1
0
D1
D2 D3
D154 D155 D156 DR SC BU *
B0 B1 B2 B3 A0 A1 A2 A3
CCB address 8 bits
Display data 156 bits
Control data 4 bits
*: don't care
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
Rev: 1.1 2002.03.04
6
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