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PCF8574RGTR The Texas Instruments PCF8574RGTR is an 8-bit I/O expander designed for I2C bus communication. It offers general-purpose remote I/O expansion for microcontrollers.
Mfr Part #:

PCF8574RGTR

Available from 3 distributors
Mfr Name: Texas Instruments
Texas Instruments
The Texas Instruments PCF8574RGTR is an 8-bit I/O expander designed for I2C bus communication. It offers general-purpose remote I/O expansion for microcontrollers.
✓ Total Stock: 37,743 pcs
$ Price Range: $0.68

PCF8574RGTR Available from 3 distributors

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Romaks Technologies ✓
Non-Authorised Inventory information
36,160 pcs
On Request
36160 pcs On Request 1 On Request On Request On Request On Request On Request
Fe Components ✓
Non-Authorised Inventory information
1,495 pcs
On Request
1495 pcs On Request 1 On Request On Request On Request On Request On Request
Akira Global ✓
Non-Authorised Inventory information
88 pcs
On Request
88 pcs On Request 1 On Request On Request 2218+5 On Request On Request
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.

PCF8574RGTR Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Clock Frequency
Current
Features
Interface
Interrupt Output
Latch-up Performance
Mounting Type
Number of I
Operating Temperature
Output Type
Supplier Device Package
Voltage
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PCF8574RGTR Description

Short technical summary and product information.

The Texas Instruments PCF8574RGTR is an 8-bit I/O expander that facilitates remote I/O expansion via the I2C interface. Designed for operation between 2.5V and 6V, this device is compatible with most microcontroller families.

 

Key features include an 8-bit quasi-bidirectional I/O port (P0–P7) with latched outputs capable of directly driving LEDs. Each I/O can function as either an input or output without requiring a separate data-direction control signal. At power-on, the I/Os are set to a high state.

 

This I/O expander operates at a maximum clock frequency of 100 kHz and has an operating temperature range of -40°C to 85°C. It also features an open-drain interrupt output and low standby-current consumption of a maximum of 10µA. The device is available in a 16-VQFN exposed pad package, suitable for surface mounting.

 

The PCF8574RGTR offers high-current drive capability for its latched outputs, exceeding 100mA latch-up performance per JESD 78, Class II. Its design makes it a versatile component for applications requiring additional I/O pins controlled through an I2C interface.

PCF8574RGTR Quick Information

Product Type: IO Expander
Canonical Name: Texas Instruments PCF8574 I2C/SMBus 8-Bit I/O Expander
Subcategory: I2C, I3C & SPI ICs

PCF8574RGTR Compliance

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

PCF8574RGTR Estimated Pricing

Qty Low High
1+ $0.68 $0.68

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

PCF8574RGTR Features

  • Provides 8 general-purpose I/O pins.
  • Operates over a 2.5V to 6V supply voltage.
  • Features an I2C serial interface.
  • Includes an interrupt output pin.
  • Supports surface mount installation.

PCF8574RGTR Applications

  • Extends microcontroller I/O capabilities.
  • Ideal for LED control applications.
  • Used in systems with limited GPIOs.
  • Suitable for I2C bus expansion.

PCF8574RGTR FAQs

5 frequently asked questions generated from this part’s specifications.
What is the operating voltage range for the PCF8574RGTR?

The PCF8574RGTR operates from 2.5V to 6V.

What is the operating temperature range of the PCF8574RGTR?

The PCF8574RGTR operates from -40°C to 85°C.

What package type is the PCF8574RGTR available in?

The PCF8574RGTR is available in a 16-VQFN Exposed Pad package.

Does the PCF8574RGTR have an interrupt output?

Yes, the PCF8574RGTR features an interrupt output.

What is the maximum clock frequency for the PCF8574RGTR?

The maximum clock frequency for the PCF8574RGTR is 0.1 MHz.

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