TCA1116 Overview
Description
This 16-bit I/O expander for the two-line bidirectional bus (I2C) is designed for 1.65-V to 5.5-V VCC operation. It provides general-purpose remote I/O expansion for most microcontroller families via the I2C interface [serial clock (SCL), serial data (SDA)].
Key Features
- I2C to Parallel Port Expander
- Supports partial power down i.e. SDA and SCL are 5V tolerant (<1uA leakage) even when Vcc=0
- Supports 1.8V I2C operation
- Open-Drain Active-Low Interrupt Output
- Active-Low Reset Input
- I/O Ports are 5V tolerant
- Low Standby-Current Consumption of 3 μA Max
- 400-kHz Fast I2C Bus support
- Polarity Inversion Register
- Configurable with up to four different I2C addresses using hardware pins
