pca8574 NXP Semiconductors, pca8574 Datasheet - Page 2

• Manufacturer Part Number: pca8574
• Description: Pca8574/pca8574a Remote 8-bit I/o Expander For I2c-bus With Interrupt
• Manufacturer: NXP Semiconductors

NXP Semiconductors
4. Ordering information
Table 1.
5. Block diagram
PCA8574_PCA8574A_2
Product data sheet
Type number
PCA8574D
PCA8574AD
PCA8574N
PCA8574AN
PCA8574PW
PCA8574APW
PCA8574TS
PCA8574ATS
Ordering information
Topside
mark
PCA8574D
PCA8574AD
PCA8574N
PCA8574AN
PCA8574
PA8574A
PCA8574
PCA8574A
I
I
I
Fig 1. Block diagram of PCA8574/74A
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Instrumentation and test measurement
SDA
AD0
AD1
AD2
SCL
V
V
INT
DD
SS
Package
Name
SO16
DIP16
TSSOP16
SSOP20
PCA8574
PCA8574A
FILTER
INPUT
Description
plastic small outline package; 16 leads; body width 7.5 mm
plastic dual in-line package; 16 leads (300 mil); long body
plastic thin shrink small outline package; 16 leads;
body width 4.4 mm
plastic shrink small outline package; 20 leads;
body width 4.4 mm
POWER-ON
RESET
Rev. 02 — 14 May 2007
INTERRUPT
LOGIC
CONTROL
I
2
C-BUS
Remote 8-bit I/O expander for I
REGISTER
write pulse
read pulse
SHIFT
LP FILTER
8 BITS
PCA8574/74A
PORT
I/O
002aac677
2
C-bus with interrupt
© NXP B.V. 2007. All rights reserved.
Version
SOT162-1
SOT38-1
SOT403-1
SOT266-1
P0 to P7
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