The Texas Instruments PCF8575C series device is a 16-bit I/O expander for the two-line bidirectional bus (I2C) is designed for 4.5-V to 5.5-V VCC operation. The PCF8575C provides general-purpose remote I/O expansion for most microcontroller families via the I2C interface serial clock (SCL) and serial data (SDA).
I2C to Parallel-Port Expander Open-Drain Interrupt Output Low Standby-Current Consumption of 10 μA Maximum Compatible With Most Microcontrollers 400-kHz Fast I2C Bus Address by Three Hardware Address Pins for Use of up to Eight Devices Latched Outputs With High-Current Drive Capability for Directly Driving LEDs Latch-Up Performance Exceeds 100 mA Per JESD 78, Class II ESD Protection Exceeds JESD 22 2000-V Human-Body Model 200-V Machine Model 1000-V Charged-Device Model