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8574A 데이터 시트보기 (PDF) - Philips Electronics
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8574A
Remote 8-bit I/O expander for I2C-BUS
Philips Electronics
8574A Datasheet PDF : 24 Pages
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Philips Semiconductors
Remote 8-bit I/O expander for I
2
C-bus
4 BLOCK DIAGRAM
Product specification
PCF8574
handbook, full pagewidth
INT
13
1
A0
2
A1
3
A2
14
SCL
15
SDA
16
VDD
V
SS
8
INTERRUPT
LOGIC
PCF8574
LP FILTER
INPUT
FILTER
I
2
C BUS
CONTROL
SHIFT
REGISTER
8 BIT
4
P0
5
P1
6
P2
I/O
PORT
7
P3
9
P4
10
P5
11
P6
12
P7
POWER-ON
RESET
WRITE pulse
READ pulse
MBD980
Fig.1 Block diagram (pin numbers apply to DIP16 and SO16 packages).
2002 Nov 22
4
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