Description
This 8-bit I/O expander for the two-line bidirectional bus (I2C) is designed for 2.3-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)].
Features
- 1 Low Standby Current Consumption of 1 μA Max.
- I2C to Parallel Port Expander.
- Open-Drain Active-Low Interrupt Output.
- Active-Low Reset Input.
- Operating Power-Supply Voltage Range of 2.3 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/Output Configuration Register.
- Polarity Inversion Register.
- Power-Up With All Chan.