Part number:
PCA8574
Manufacturer:
File Size:
416.27 KB
Description:
Remote 8-bit i/o expander.
Datasheet Details
Part number:
PCA8574
Manufacturer:
File Size:
416.27 KB
Description:
Remote 8-bit i/o expander.
PCA8574, Remote 8-bit I/O expander
The PCA8574/74A provides general-purpose remote I/O expansion via the two-wire bidirectional I2C-bus (serial clock (SCL), serial data (SDA)).
The devices consist of eight quasi-bidirectional ports, 400 kHz I2C-bus interface, three hardware address inputs and interrupt output operating between 2.3 V
PCA8574 Features
* I2C-bus to parallel port expander
* 400 kHz I2C-bus interface (Fast-mode I2C-bus)
* Operating supply voltage 2.3 V to 5.5 V with 5.5 V tolerant I/Os held to VDD with 100 A current source
* 8-bit remote I/O pins that default to inputs at power-up
* Latched outputs with 25 mA si
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