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L9950 数据表(PDF) 18 Page - STMicroelectronics

部件名 L9950
功能描述  DOOR ACTUATOR DRIVER
PDF  23 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

L9950 数据表(HTML) 18 Page - STMicroelectronics

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L9950
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Figure 6. SPI - TRANSFER TIMING DIAGRAM
Figure 7. SPI - INPUT TIMING
12
3
4
56
7
0
01
1
234
5
6
7
0
1
234
5
6
7
0
01
01
CSN
CLK
DI
DO
Input
Data
Register
CSN high to low: DO enabled
time
DI: data will be accepted on the rising edge of CLK signal
time
time
time
time
DO: data will change on the falling edge of CLK signal
fault bit
CSN low to high: actual data is
transfered to output power switches
old data
new data
23
22
21
20
19
18
23
22
21
20
19
18
23
22
21
20
19
18
X
X
X
X
X
X
12
3
4
56
7
0
01
1
234
5
6
7
0
12
3
4
56
7
0
01
1
234
5
6
7
0
1
234
5
6
7
0
01
01
CSN
CLK
DI
DO
Input
Data
Register
CSN high to low: DO enabled
time
DI: data will be accepted on the rising edge of CLK signal
time
time
time
time
DO: data will change on the falling edge of CLK signal
fault bit
CSN low to high: actual data is
transfered to output power switches
old data
new data
1
234
5
6
7
0
01
01
CSN
CLK
DI
DO
Input
Data
Register
CSN high to low: DO enabled
time
DI: data will be accepted on the rising edge of CLK signal
time
time
time
time
DO: data will change on the falling edge of CLK signal
fault bit
CSN low to high: actual data is
transfered to output power switches
old data
new data
23
22
21
20
19
18
23
22
21
20
19
18
23
22
21
20
19
18
X
X
X
X
X
X
0.8 VCC
0.8 VCC
0.8 VCC
0.2 VCC
0.2 VCC
0.2 VCC
Valid
Valid
CSN
CLK
DI
t
set CSN
t
CLKH
t
se t CLK
t
CLKL
t
hold DI
t
set DI



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