The PCF8574A provides general purpose remote I/O expansion for most microcontroller families via the two-line bidirectional bus (I2C-bus).
The device consists of an 8-bit quasi-bidirectional port and an I2C-bus interface. The PCF8574A has a low current consumption and includes latched outputs with high current drive capability for directly driving LEDs. It also possesses an interrupt line (INT) which can be connected.
Features:
- Operating supply voltage 2.5 to 6 V
- Low standby current consumption of 10 uA maximum
- I2C-bus to parallel port expander
- Open-drain interrupt output
- 8-bit remote I/O port for the I2C-bus
- Compatible with most microcontrollers
- Latched outputs with high current drive capability for directly driving LEDs
- Address by 3 hardware address pins for use of up to 8 devices (up to 16 with PCF8574A)
Price £3.49
![[]](/sites/all/modules/ecommerce/cart/images/cart_empty.png "View your cart items"){kind=spacer}