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PCA9671 Datasheet(PDF) 3 Page - NXP Semiconductors

Part No. PCA9671
Description  Remote 16-bit I/O expander for Fm I2C-bus with reset
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Maker  PHILIPS [NXP Semiconductors]
Homepage  http://www.nxp.com
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PCA9671 Datasheet(HTML) 3 Page - NXP Semiconductors

 
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PCA9671_1
© NXP B.V. 2006. All rights reserved.
Product data sheet
Rev. 01 — 20 December 2006
3 of 34
NXP Semiconductors
PCA9671
Remote 16-bit I/O expander for Fm+ I2C-bus with reset
5.
Block diagram
Fig 1.
Block diagram of PCA9671
Fig 2.
Simplified schematic diagram of P00 to P17
002aac244
RESET
I2C-BUS
CONTROL
PCA9671
AD0
AD1
AD2
INPUT
FILTER
SHIFT
REGISTER
SDA
SCL
16 BITS
write pulse
read pulse
POWER-ON
RESET
VDD
VSS
I/O
PORT
P00 to P07
P10 to P17
002aab631
write pulse
read pulse
D
CI
S
FF
Q
power-on reset
data from Shift Register
Itrt(pu)
100
µA
IOH
IOL
VDD
P00 to P07
P10 to P17
VSS
D
CI
S
FF
Q
data to Shift Register
to interrupt logic


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