PCA9554DGVR Texas Instruments - Yeehing Electronics

8-bit 2.3- to 5.5-V I2C/SMBus I/O expander with interrupt, weak pull-up & config registers

Pricing (USD)

Quantity	Unit Price
1 — 99	1.855
100 — 249	1.532
250 — 999	1.1
1,000 +	0.58

The above prices are for reference only.

Specifications

For more information, please refer to datasheet

Documents

PCA9554DGVR Datasheet

More Information

INT can be connected to the interrupt input of a microcontroller. By sending an interrupt signal on this line, the remote I/O can inform the microcontroller if there is incoming data on its ports without having to communicate via the I2C bus. Thus, the PCA9554 can remain a simple slave device.