PCF8575 Remote 16 Bit I2C IIC SMBus I/O Expander Module

PCF8575 Remote 16 Bit I2C IIC SMBus I/O Expander Module is a large module allows the user to expand up to 16 i/o with only two i/o for control. The PCF8575 is connected via an I2C interface and features 16-bit near-bi-directional input/output pins.

The device features a 16-bit quasi-bidirectional input/output (I/O) port (P07–P00, P17–P10), including latched outputs with high-current drive capability for directly driving LEDs. Onboard 3.3V level converter circuit, if you don’t have a solder pad of VCC-VDD, the PCF8575 level is 3.3V. If you solder it, the level will be the same as with VCC

Features:

• 16 individually addressable pins.
• Each pin configurable for input or output
• Open drain interrupts output pin for input change interrupt.
• Ideal for R3 and other MCUs to simple relay, buzzer, button, led.

Specifications:

• Item Type: PCF8575
• Operating Voltage(V): 2.5-5.5VDC
• Current Consumption (mA): 100mA (max)
• I²C: 0x20 (default), : can be changed by soldering A1 and selection pads A2.
• Size: 32x21mm

Package Includes:

• 1 x PCF8575 Remote 16 Bit I2C IIC SMBus I/O Expander Module

Useful Link : 

• PCF8575 Remote 16 bit Module Library