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PCA8574ATS Datasheet(PDF) 3 Page - NXP Semiconductors

Part # PCA8574ATS
Description  Remote 8-bit I/O expander for I2C-bus with interrupt
PDF  27 Pages
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Manufacturer  NXP [NXP Semiconductors]
Direct Link  http://www.nxp.com
Logo NXP - NXP Semiconductors

PCA8574ATS Datasheet(HTML) 3 Page - NXP Semiconductors

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PCA8574_PCA8574A_2
© NXP B.V. 2007. All rights reserved.
Product data sheet
Rev. 02 — 14 May 2007
3 of 27
NXP Semiconductors
PCA8574/74A
Remote 8-bit I/O expander for I2C-bus with interrupt
6.
Pinning information
6.1 Pinning
Fig 2.
Simplified schematic diagram of P0 to P7
002aac109
write pulse
read pulse
D
CI
S
FF
Q
power-on reset
data from Shift Register
Itrt(pu)
100
µA
IOH
IOL
VDD
P0 to P7
VSS
D
CI
S
FF
Q
data to Shift Register
to interrupt logic
Fig 3.
Pin configuration for DIP16
Fig 4.
Pin configuration for SO16
PCA8574N
PCA8574AN
AD0
VDD
AD1
SDA
AD2
SCL
P0
INT
P1
P7
P2
P6
P3
P5
VSS
P4
002aac679
1
2
3
4
5
6
7
8
10
9
12
11
14
13
16
15
PCA8574D
PCA8574AD
AD0
VDD
AD1
SDA
AD2
SCL
P0
INT
P1
P7
P2
P6
P3
P5
VSS
P4
002aac678
1
2
3
4
5
6
7
8
10
9
12
11
14
13
16
15



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