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PCF8574PWR The Texas Instruments PCF8574PWR is an 8-bit I/O expander designed for I2C bus communication. It offers general-purpose remote I/O expansion for microcontrollers.
Mfr Part #:

PCF8574PWR

Available from 6 distributors
Mfr Name: Texas Instruments
Texas Instruments
The Texas Instruments PCF8574PWR is an 8-bit I/O expander designed for I2C bus communication. It offers general-purpose remote I/O expansion for microcontrollers.
✓ Total Stock: 14,722 pcs
$ Price Range: $0.64

PCF8574PWR Available from 6 distributors

✓ Authorised
✓ Non-Authorised
DistyParts aggregates offers from multiple distributors. Final prices, lead times and terms are subject to the distributors' discretion and may change without prior notice. DistyParts is not liable for any discrepancies.

PCF8574PWR 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
Supplier Package
Voltage
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PCF8574PWR Description

Short technical summary and product information.

The Texas Instruments PCF8574PWR is an 8-bit I/O expander that facilitates remote I/O expansion via the I2C interface. Operating within a voltage range of 2.5V to 6V, this device is compatible with most microcontroller families. It features an 8-bit quasi-bidirectional I/O port (P0–P7) that can function as either an input or output without requiring a data-direction control signal. The outputs are latched and possess high-current drive capability, suitable for directly driving LEDs.

 

Key electrical characteristics include an operating temperature range of -40°C to 85°C and a maximum clock frequency of 100 kHz. The device supports I2C communication and includes an interrupt output feature. It is available in a 20-TSSOP package, designed for surface mount applications.

 

This I/O expander is useful in applications requiring additional digital I/Os where microcontroller pins are limited. Its compatibility with standard microcontrollers and the I2C interface makes it a versatile component for embedded systems.

PCF8574PWR Quick Information

Product Type: IO Expander
Canonical Name: PCF8574PWR 8-bit I2C/SMBus I/O Expander with Interrupt
Subcategory: I2C/SMBus I/O Expander

PCF8574PWR Compliance

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

PCF8574PWR Estimated Pricing

Qty Low High
1+ $0.64 $0.64

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

PCF8574PWR Features

  • 8-bit I/O expander for I2C bus.
  • Operates from 2.5V to 6V supply.
  • Features interrupt output capability.
  • Suitable for surface mount applications.
  • Wide operating temperature range.

PCF8574PWR Applications

  • Extends microcontroller I/O pins.
  • Ideal for LED control applications.
  • Used in embedded system designs.
  • Facilitates I2C communication expansion.

PCF8574PWR FAQs

5 frequently asked questions generated from this part’s specifications.
What is the operating voltage range for the PCF8574PWR?

The PCF8574PWR operates from 2.5V to 6V.

What package type is the PCF8574PWR available in?

The PCF8574PWR is available in a 20-TSSOP package.

What is the operating temperature range for the PCF8574PWR?

The PCF8574PWR has an operating temperature range of -40°C to 85°C.

Does the PCF8574PWR have an interrupt output?

Yes, the PCF8574PWR features an interrupt output.

What is the maximum clock frequency for the PCF8574PWR?

The maximum clock frequency for the PCF8574PWR is 0.1 MHz.

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