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| PCA9544A Datasheet, PDF (3/27 Pages) Texas Instruments – 4-CHANNEL IC AND SMBus MULTIPLEXER WITH INTERRUPT LOGIC | |||
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NXP Semiconductors
4. Block diagram
PCA9544A
4-channel I2C-bus multiplexer with interrupt logic
PCA9544A
SC0
SC1
SC2
SC3
SD0
SD1
SD2
SD3
VSS
VDD
POWER-ON
RESET
SWITCH CONTROL LOGIC
SCL
SDA
INPUT
FILTER
INT[3:0]
Fig 1. Block diagram
I2C-BUS
CONTROL
INTERRUPT LOGIC
A0
A1
A2
INT
002aae296
PCA9544A_3
Product data sheet
Rev. 03 â 24 November 2008
© NXP B.V. 2008. All rights reserved.
3 of 27
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