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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...