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TCA9538
SCPS199D – AUGUST 2014 – REVISED OCTOBER 2016
TCA9538 Low
Voltage 8-Bit I2C and SMBus Low-Power I/O Expander with Interrupt Output, Reset, and Configuration Registers
1 Features
•1 Low Standby Current Consumption • I2C to Parallel Port Expander • Open-Drain Active-Low Interrupt Output • Active-Low Reset Input • Operating Power-Supply
Voltage Range of 1.
65 V
to 5.
5 V • 5-V Tolerant I/O Ports • 400-kHz Fast I2C Bus • Two Hardware Address Pins Allow up to Four
Devices on the I2C/SMBus • Input and Output Configuration Register • Polarity Inversion Register • Power-Up With All Channels Configured as...