Automotive 16-bit 1.65- to 3.6-V I2C/SMBus I/O expander with interrupt, reset & config registers
The TCA9539-Q1 is a 24-pin device that provides 16 bits of general purpose parallel input and output (I/O) expansion for the two-line bidirectional I2C bus (or SMBus protocol). The device can operate with a power supply voltage (VCC) range from 1.65 V to 3.6 V.