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