PCF8574APWR The Texas Instruments PCF8574APWR is an 8-bit I/O expander designed for I2C bus communication. It operates from 2.5V to 5.5V and features a low standby current.
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PCF8574APWR

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The Texas Instruments PCF8574APWR is an 8-bit I/O expander designed for I2C bus communication. It operates from 2.5V to 5.5V and features a low standby current.
✓ Total Stock: 40 pcs

PCF8574APWR Available from 1 distributor

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PCF8574APWR Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Frequency
Halogen Free
Mounting Type
Operating Temperature
Operating Voltage
Package / Case
SVHC Present

PCF8574APWR Description

Short technical summary and product information.

The Texas Instruments PCF8574APWR is an 8-bit general-purpose remote I/O expander that communicates via the I2C interface. It is designed for operation with a VCC range of 2.5V to 5.5V, making it compatible with a wide array of microcontrollers.

 

This I/O expander features an 8-bit quasi-bidirectional I/O port that can function as either an input or an output without requiring a data-direction control signal. The outputs are latched and possess high-current drive capability, suitable for directly driving LEDs. At power-on, the I/Os default to a high state.

 

Key specifications include 8 I/Os, a maximum frequency of 0.1 MHz, and an operating temperature range of -40°C to 85°C. It also boasts a low standby-current consumption of 10 µA maximum. The device is available in various package types including VQFN, TVSOP, PDIP, SOIC, and TSSOP, with surface mount as the typical mounting type.

 

The PCF8574APWR is suitable for applications requiring additional I/O ports for microcontrollers, such as expanding control capabilities in embedded systems, interfacing with sensors, or driving multiple LEDs.

PCF8574APWR Quick Information

Product Type: I/O Expander
Series: PCF8574A
Canonical Name: PCF8574A Remote 8-Bit I/O Expander for I2C Bus
Subcategory: General Purpose I/O

PCF8574APWR Compliance

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

PCF8574APWR Features

  • 8-bit I2C/SMBus I/O expander.
  • Wide operating voltage from 2.5V to 5.5V.
  • Low standby current consumption of 10 µA.
  • Latched outputs with high-current drive.
  • Operates from -40°C to 85°C.

PCF8574APWR Applications

  • Extends microcontroller I/O capabilities.
  • Ideal for driving multiple LEDs.
  • Suitable for sensor interfacing.
  • Used in embedded control systems.

PCF8574APWR FAQs

6 frequently asked questions generated from this part’s specifications.
What is the operating voltage range of the PCF8574APWR?

2.5 V to 5.5 V.

What packages are available for the PCF8574APWR?

VQFN, TVSOP, PDIP, SOIC, and TSSOP.

What is the operating temperature range?

-40°C to 85°C.

How many I/Os does the PCF8574APWR provide?

8 I/Os.

What is the standby current consumption?

10 µA maximum.

What is the maximum operating frequency?

0.1 MHz.

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