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零件编号
产品描述 (功能)
9538 查看數據表(PDF) - Philips Electronics
零件编号
产品描述 (功能)
生产厂家
9538
8-bit I2C and SMBus low power I/O port with interrupt and reset
Philips Electronics
9538 Datasheet PDF : 18 Pages
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Philips Semiconductors
8-bit I
2
C and SMBus low power I/O port
with interrupt and reset
Product data sheet
PCA9538
START
SCL
ACK OR READ CYCLE
SDA
30%
RESET
50%
t
REC
I/Ox
50%
t
RESET
50%
t
W
Figure 14. Definition of RESET timing
t
RESET
50%
I/O configured as inputs
SW02340
70 %
SCL
2
1
0
A
P
30 %
SDA
t
PS
t
PH
INPUT
t
IV
50 %
t
IR
INT
SW02329
Figure 15. Expanded view of Read input port register
70 %
SCL
2
1
0
A
P
30 %
2004 Oct 05
SDA
t
PV
OUTPUT
50 %
SW02330
Figure 16. Expanded view of Write to output port register
12
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