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 :
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