TCA9544A Low Voltage 4-Channel I2C and SMBus Multiplexer With Interrupt Logic

1 Features

1-of-4 Bidirectional Translating Switches
I²C Bus and SMBus Compatible
Four Active-Low Interrupt Inputs
Active-Low Interrupt Output
Three Address Pins, Allowing up to Eight TCA9544A Devices on the I²C Bus
Channel Selection Via I²C Bus
Power-Up With All Switch Channels Deselected
Low R_ON Switches
Allows Voltage-Level Translation Between 1.8-V, 2.5-V, 3.3-V, and 5-V Buses
No Glitch on Power-Up
Supports Hot Insertion
Low Standby Current
Operating Power Supply Voltage Range of 1.65 V to 5.5 V
5.5-V Tolerant Inputs
0 to 400-kHz Clock Frequency
Latch-Up Performance Exceeds 100 mA Per JESD 78
ESD Protection Exceeds JESD 22
- 4000-V Human-Body Model (A114-A)
- 1500-V Charged-Device Model (C101)