• Description

PCF8575 - I2C IO Expansion Module

Do you have out I/O pins? This awesome IC allows the user to expand up to 16 I/O with just two I/O for control! The PCF8575C is controlled via an I2C interface and features 16 bit quasi-bidirectional input/output pins. This 16-bit I/O expander for the two-line bidirectional bus (I2C) is designed for 2.5-V to 5.5-V VCC operation.

The PCF8575 device provides general-purpose remote I/O expansion for most microcontroller families by way of the I2C interface [serial clock (SCL), serial data (SDA)].

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. Each quasi-bidirectional I/O can be used as an input or output without the use of a data-direction control signal. At power on, the I/Os are high. In this mode, only a current source to VCC is active.

Quick Spec

• Operating Voltage: 2.5-5.5V DC
• Operating Current: 100mA (max)
• Low Standby-Current Consumption of 10 µA Max
• I2C Address: 0x20 (default), can be modified by soldering A1 and selection pads A2
• 16 individually addressable pins
• Each pin configurable for input or output
• Open drain interrupt output pin for input change interruption
• Ideal for UNO R3 and other MCUs to control simple relay, buzzer, button, led
• Dimensions: 27 x 27mm
• Net Weight: 5g

Wiring Diagram

Resources

• PCF8575 Datasheet
• PCF8575 Library

Shipping List

• 1 x PCF8575 - I2C IO Expansion Module

PCF8575 - I2C IO Expansion Module

• Brand: Generic
• Product Code: CJMCU-8575
• Weight: 0.005kg
• Product Status : Active

Stock

Warehouse	Stock Status	Location
Centurion	No Stock
Stellenbosch	In Stock	X0210
Bulk Location	No Stock

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• R55.00 (Inc Tax: R63.25)