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PCF8574TS/3 数据表(PDF) 4 Page - NXP Semiconductors

部件名 PCF8574TS/3
功能描述  Remote 8-bit I/O expander for I2C-bus with interrupt
PDF  33 Pages
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制造商  NXP [NXP Semiconductors]
网页  http://www.nxp.com
标志 NXP - NXP Semiconductors

PCF8574TS/3 数据表(HTML) 4 Page - NXP Semiconductors

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PCF8574_PCF8574A
All information provided in this document is subject to legal disclaimers.
© NXP B.V. 2013. All rights reserved.
Product data sheet
Rev. 5 — 27 May 2013
4 of 33
NXP Semiconductors
PCF8574; PCF8574A
Remote 8-bit I/O expander for I2C-bus with interrupt
6.
Pinning information
6.1 Pinning
6.2 Pin description
Fig 3.
Pin configuration for DIP16
Fig 4.
Pin configuration for SO16
Fig 5.
Pin configuration for
SSOP20
PCF8574P
PCF8574AP
A0
VDD
A1
SDA
A2
SCL
P0
INT
P1
P7
P2
P6
P3
P5
VSS
P4
002aad625
1
2
3
4
5
6
7
8
10
9
12
11
14
13
16
15
A0
VDD
A1
SDA
A2
SCL
P0
INT
P1
P7
P2
P6
P3
P5
VSS
P4
PCF8574T/3
PCF8574AT/3
002aad626
1
2
3
4
5
6
7
8
10
9
12
11
14
13
16
15
PCF8574TS/3
PCF8574ATS/3
P7
SCL
P6
n.c.
n.c.
SDA
P5
P4
A0
A1
P3
n.c.
n.c.
A2
P2
P0
P1
002aad627
1
2
3
4
5
6
7
8
9
10
12
11
14
13
16
15
18
17
20
19
VDD
INT
VSS
Table 3.
Pin description
Symbol
Pin
Description
DIP16, SO16
SSOP20
A0
1
6
address input 0
A1
2
7
address input 1
A2
3
9
address input 2
P0
4
10
quasi-bidirectional I/O 0
P1
5
11
quasi-bidirectional I/O 1
P2
6
12
quasi-bidirectional I/O 2
P3
7
14
quasi-bidirectional I/O 3
VSS
8
15
supply ground
P4
9
16
quasi-bidirectional I/O 4
P5
10
17
quasi-bidirectional I/O 5
P6
11
19
quasi-bidirectional I/O 6
P7
12
20
quasi-bidirectional I/O 7
INT
13
1
interrupt output (active LOW)
SCL
14
2
serial clock line
SDA
15
4
serial data line
VDD
16
5
supply voltage
n.c.
-
3, 8, 13, 18
not connected



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