Datasheet

PCA9544A All information provided in this document is subject to legal disclaimers. © NXP Semiconductors N.V. 2014. All rights reserved.
Product data sheet Rev. 5 — 23 April 2014 3 of 31
NXP Semiconductors
PCA9544A
4-channel I
2
C-bus multiplexer with interrupt logic
4. Block diagram
Fig 1. Block diagram
SWITCH CONTROL LOGIC
PCA9544A
POWER-ON
RESET
002aae296
SD2
SD3
V
SS
V
DD
I
2
C-BUS
CONTROL
INPUT
FILTER
SCL
SDA
A0
A1
A2
SD1
SD0
SC2
SC3
SC1
SC0
INTERRUPT LOGIC
INT[3:0] INT