Details: As the I/O interface resources of MCU is limited, your project may be not able to use normal LCD shield after connected with a certain quantity of sensors or SD card. However, with this I2C expansion board, you can easily implement functions that require many I / O interfaces. It is fantastic for MCU based project.
Operating voltage: 2.5 V to 6 V with non-overvoltage tolerant I/O held to VDD with 100 uA current source
Operating temperature: -40~85 Celsius
Low Standby-Current Consumption of 10 μA Max
I2C to Parallel-Port Expander
100 kHz I2C-bus interface (Standard-mode I2C-bus)
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
If you need sample programs or data manuals, you can contact us by mail, we will send you as soon as possible.
5x PCF8574 I2C Interface 8bit IO MCU Expansion Board
Package Dimensions: 12x120x80