- Currently Out of Stock
Christmas Closure
We will be closed from 24th December to 3rd January. However we will be dispatching orders throughout this period when the postal service is in operation.
We would like to wish all our customers, old and new, a very merry Christmas.
Yodel
Please note: Yodel is currently experiencing issues. Whilst the issue is ongoing, orders placed using this service will be dispatched via Evri or Royal Mail 48 hour service.
PCF8574 I2C to 8-bit digital port expander
This module (HCMODU0120) is a breakout board for the PCF8574 8-bit input/output (I/O) expander IC. Using this module you can expand the available digital I/O pins of your microcontroller via its serial I2C interface. The device features an 8-bit quasi-bidirectional I/O port (P0–P7), including latched outputs with high current drive capability for directly driving...
This module (HCMODU0120) is a breakout board for the PCF8574 8-bit input/output (I/O) expander IC. Using this module you can expand the available digital I/O pins of your microcontroller via its serial I2C interface. The device features an 8-bit quasi-bidirectional I/O port (P0–P7), including latched outputs with high current drive capability for directly driving LEDs. Each quasi-bidirectional I/O can be used as an input or output without the use of a data-direction control signal.
3 On-board jumpers allow selection of up to 8x I2C addresses meaning that up to 8 modules (64 I/O pins) can be connected to same I2C interface. The module also features convenient input and output headers at each end so that additional modules can simply be daisy-chained without the need for additional wires etc.
If you intend to use this module with a standard Arduino board please don't forget to download our exclusive HCPCF8574 library and example sketches which are fully compatible with this module. The library can be downloaded from the software section of our support forum here:
HCPCF8574 Library
Product code: HCMODU0120
2.5V to 6V VCC operation
Low Standby-Current Consumption of 10 μA Max
I2C to 8-bit Parallel-Port Expander
Open-Drain Interrupt Output
Compatible With Most Microcontrollers
Latched Outputs With High-Current Drive Capability for Directly Driving LEDs
Latch-Up Performance Exceeds 100 mA Per JESD 78, Class II
1....VCC: 3.3V or 5V power supply
2....GND: Power ground
3....SDA: I2C Data
4....SCL: I2C Clock
Specific References
3 other products in the category
USBTinyISP in circuit AVR...
This USBTinyISP programmer is ideally suited for in circuit programming of AVR devices or for...
- Currently Out of Stock