PCF8574 expander equivalent, remote 8-bit i/o expander.
* Low standby-current consumption of 10μA 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 2.5V to 6V VCC operation.
The PCF8574 device provides general-purpose remote I/O expansion for most microcontroller families by way of the I2C interface.
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