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PCF8574 데이터시트(PDF) 6 Page - NXP Semiconductors

부품명 PCF8574
상세설명  Remote 8-bit I/O expander for I2C-bus
PDF  24 Pages
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제조업체  PHILIPS [NXP Semiconductors]
홈페이지  http://www.nxp.com
Logo PHILIPS - NXP Semiconductors

PCF8574 데이터시트(HTML) 6 Page - NXP Semiconductors

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2002 Nov 22
6
Philips Semiconductors
Product specification
Remote 8-bit I/O expander for I2C-bus
PCF8574
5.2
SSOP20 package
SYMBOL
PIN
DESCRIPTION
INT
1
interrupt output (active LOW)
SCL
2
serial clock line
n.c.
3
not connected
SDA
4
serial data line
VDD
5
supply voltage
A0
6
address input 0
A1
7
address input 1
n.c.
8
not connected
A2
9
address input 2
P0
10
quasi-bidirectional I/O 0
P1
11
quasi-bidirectional I/O 1
P2
12
quasi-bidirectional I/O 2
n.c.
13
not connected
P3
14
quasi-bidirectional I/O 3
VSS
15
supply ground
P4
16
quasi-bidirectional I/O 4
P5
17
quasi-bidirectional I/O 5
n.c.
18
not connected
P6
19
quasi-bidirectional I/O 6
P7
20
quasi-bidirectional I/O 7
handbook, halfpage
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
INT
SCL
n.c.
SDA
VDD
A0
A1
n.c.
A2
P0
P7
P6
n.c.
P5
VSS
P4
P3
n.c.
P2
P1
PCF8574TS
PCF8574ATS
MBD978
Fig.4 Pin configuration (SSOP20).



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