SC16315 Просмотр технического описания (PDF) - Silan Microelectronics
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SC16315 Datasheet PDF : 11 Pages
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SC16315
KEY SCANNING AND DISPLAY TIMING
TDISP=500μs
SEG output
DIG1
DIG2
DIG3
Key scan data
DIGn
DIG1
G1
1/16 TDISP
G2
G3
Gn
1 frame=TDISPx(n+1)
Remark One cycle of key scanning consists of two frames, and data in a 16 x 2 matrix is stored in RAM.
Key Scan Expansion
1st frame
2nd frame
12345678
DIGn
9 10 11 12 13 14 15 16
DIG1
SERIAL COMMUNICATION FORMAT
Reception (command/data write)
STB
If data continues
DIN
b0
b1
b2
b6
b7
CLK
1
2
3
7
8
Transmission (data read)
STB
DIN
b0 b1 b2 b3 b4 b5 b6 b7
CLK
DOUT
1
2
3
4
5
6
7
8
tWAITNote 1
2
3
4
5
6
b0 b1 b2 b3 b4 b5
A data read command is set.
Data is read.
Note When data is read, a wait time tWAIT of 1μs is necessary since the rising of the eighth clock that has set the
command, until the falling of the first clock that has read the data.
Remark Be sure to connect an external pull-up resistor (1kΩ to 10kΩ) to this pin because the Dout pin is an N-
ch , open-drain output pin .
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http: www.silan.com.cn
REV:1.0 2008.12.16
Page 8 of 11
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