PCF8575DWR The Texas Instruments PCF8575DWR is a 16-bit I2C/SMBus IO expander designed for general-purpose remote I/O expansion. It operates from 2.5V to 5.5V and features a 400kHz I2C bus interface.
Mfr Part #:

PCF8575DWR

Available from 2 distributors
Mfr Name: Texas Instruments
Texas Instruments
The Texas Instruments PCF8575DWR is a 16-bit I2C/SMBus IO expander designed for general-purpose remote I/O expansion. It operates from 2.5V to 5.5V and features a 400kHz I2C bus interface.
Total Stock: 4,453 pcs
$ Price Range: $1.18

PCF8575DWR Available from 2 distributors

Authorised
Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Non-Authorised Inventory information
2,810 pcs
2810 pcs On Request 1 On Request On Request On Request On Request On Request
Non-Authorised Inventory information
1,643 pcs
1643 pcs On Request 1 On Request On Request 14+ On Request On Request

PCF8575DWR Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Clock Frequency
Current
Features
Interface
Interrupt Output
Mounting Type
Number of I
Operating Temperature
Output Type
Supplier Device Package
Voltage

PCF8575DWR Description

Short technical summary and product information.

The PCF8575DWR from Texas Instruments is a 16-bit quasi-bidirectional I/O expander that communicates via the I2C interface. This device is suitable for applications requiring additional I/O pins, offering 16 general-purpose inputs/outputs that can be controlled by a microcontroller. It operates within a voltage range of 2.5V to 5.5V and supports a maximum clock frequency of 400kHz.

 

The expander features an interrupt output pin, which can be configured as open-drain, to signal changes in I/O states. The latched outputs provide high-current drive capability, allowing for direct driving of LEDs. The device is available in a 24-SOIC package, designed for surface mounting.

 

With its low standby current consumption and compatibility with most microcontrollers, the PCF8575DWR is a versatile solution for expanding I/O capabilities in embedded systems. The address can be set using three hardware address pins, enabling up to eight devices on the same I2C bus.

PCF8575DWR Quick Information

Product Type: IO Expander
Canonical Name: PCF8575DWR 16-bit I2C/SMBus I/O Expander
Subcategory: I2C, SMBus

PCF8575DWR Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

PCF8575DWR Estimated Pricing

Qty Low High
1+ $1.18 $1.18

Estimated market price range - modelled values for guidance only, not live distributor offers.

PCF8575DWR Features

  • 16-bit I2C/SMBus IO expander.
  • Operates from 2.5V to 5.5V.
  • 400kHz fast I2C bus frequency.
  • Interrupt output pin included.
  • Available in 24-SOIC package.

PCF8575DWR Applications

  • Used in microcontroller I/O expansion
  • Ideal for industrial automation systems
  • Supports communication in embedded systems
  • Suitable for control and automation applications

PCF8575DWR FAQs

6 frequently asked questions generated from this part’s specifications.
What is the operating voltage range for the PCF8575DWR?

The operating voltage range is 2.5V to 5.5V.

How many I/O pins does the PCF8575DWR provide?

The PCF8575DWR provides 16 I/O pins.

What is the maximum clock frequency supported by the PCF8575DWR?

The maximum clock frequency is 400 kHz.

Does the PCF8575DWR have an interrupt output?

Yes, the PCF8575DWR has an interrupt output.

What type of package is the PCF8575DWR supplied in?

The PCF8575DWR is supplied in a 24-SOIC package.

What is the operating temperature range for the PCF8575DWR?

The operating temperature range is -40°C to 85°C.

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