PCF8574A expander equivalent, remote 8-bit i/o expander.
* Low Standby-Current Consumption of 10 μA Max
* I2C to Parallel-Port Expander
* Open-Drain Interrupt Output
* Compatible With Most Microcontrollers
*.
* Telecom Shelters: Filter Units
* Servers
* Routers (Telecom Switching Equipment)
* Personal Computers .
This 8-bit input/output (I/O) expander for the two-line bidirectional bus (I2C) is designed for 2.5-V to 6-V VCC operation.
The PCF8574A device provides general-purpose remote I/O expansion for most microcontroller families via the I2C interface [ser.
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