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PCF8575CDBR The Texas Instruments PCF8575CDBR is a 16-bit IO expander designed for I2C and SMBus interfaces. It operates from 4.5V to 5.5V and features an interrupt output.
Mfr Part #:

PCF8575CDBR

Available from 1 distributors
Mfr Name: Texas Instruments
Texas Instruments
The Texas Instruments PCF8575CDBR is a 16-bit IO expander designed for I2C and SMBus interfaces. It operates from 4.5V to 5.5V and features an interrupt output.
✓ Total Stock: 720 pcs
$ Price Range: $2.83

PCF8575CDBR Available from 1 distributor

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✓ Non-Authorised
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Seba Components ✓
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720 pcs
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PCF8575CDBR Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Clock Frequency
Current
Features
Interface
Interrupt Output
Lead Spacing
Mounting Type
Number of I
Operating Temperature
Output Type
Supplier Device Package
Voltage
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PCF8575CDBR Description

Short technical summary and product information.

The PCF8575CDBR from Texas Instruments is a 16-bit general-purpose IO expander that communicates via the I2C or SMBus serial interface. It is designed for operation with supply voltages ranging from 4.5V to 5.5V. This device provides remote IO expansion for microcontrollers, featuring a 16-bit quasi-bidirectional port.

 

Key electrical specifications include a maximum clock frequency of 400 kHz and an open-drain output type. It supports interrupt output functionality, allowing for efficient communication with the host microcontroller. The device can source and sink up to 10mA and 25mA respectively, making it suitable for driving LEDs directly.

 

Packaged in a 24-SSOP, the PCF8575CDBR is designed for surface mount applications. Its operating temperature range is -40°C to 85°C. The part is compatible with most microcontroller families and offers addressability via hardware address pins for multiple device usage on the same bus.

 

This IO expander is useful in applications requiring additional digital I/O pins without consuming significant microcontroller resources. Its features make it suitable for various embedded systems and control applications.

PCF8575CDBR Quick Information

Product Type: IO Expander
Canonical Name: Texas Instruments PCF8575CDBR 16-Bit I2C/SMBus IO Expander
Subcategory: I2C, SMBus

PCF8575CDBR Compliance

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

PCF8575CDBR Estimated Pricing

Qty Low High
1+ $2.83 $2.83

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

PCF8575CDBR Features

  • 16-bit general-purpose IO expander.
  • I2C and SMBus interface support.
  • Operates from 4.5V to 5.5V supply.
  • Features interrupt output functionality.
  • Available in 24-SSOP package.

PCF8575CDBR Applications

  • Extends microcontroller digital I/O.
  • Suitable for LED driving applications.
  • Used in embedded control systems.
  • Facilitates communication via I2C bus.

PCF8575CDBR FAQs

6 frequently asked questions generated from this part’s specifications.
What is the operating voltage range for the PCF8575CDBR?

The PCF8575CDBR operates within a voltage range of 4.5V to 5.5V.

How many I/O pins does the PCF8575CDBR offer?

The PCF8575CDBR provides 16 I/O pins.

What is the maximum clock frequency supported by the PCF8575CDBR?

The PCF8575CDBR supports a maximum clock frequency of 400 kHz.

Does the PCF8575CDBR have an interrupt output?

Yes, the PCF8575CDBR features an interrupt output.

What type of package is the PCF8575CDBR supplied in?

The PCF8575CDBR is supplied in a 24-SSOP package.

What is the operating temperature range for the PCF8575CDBR?

The PCF8575CDBR operates in a temperature range of -40°C to 85°C.

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