PCA9557PW Texas Instruments - Yeehing Electronics

8-bit 2.3- to 5.5-V I2C/SMBus I/O expander with reset & config registers

Pricing (USD)

Quantity	Unit Price
1 — 99	1.53
100 — 249	1.264
250 — 999	0.908
1,000 +	0.48

The above prices are for reference only.

Specifications

For more information, please refer to datasheet

Documents

PCA9557PW Datasheet

More Information

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. The device provides general-purpose remote I/O expansion for most microcontroller families via the I2C interface [serial clock (SCL) and serial data (SDA)].