TCA9539RTWR The Texas Instruments TCA9539RTWR is a 16-bit I/O expander designed for I2C and SMBus interfaces. It operates over a voltage range of 1.65V to 5.5V with a maximum clock frequency of 400 kHz.
Mfr Part #:

TCA9539RTWR

Available from 5 distributors
Mfr Name: Texas Instruments
Texas Instruments
The Texas Instruments TCA9539RTWR is a 16-bit I/O expander designed for I2C and SMBus interfaces. It operates over a voltage range of 1.65V to 5.5V with a maximum clock frequency of 400 kHz.
✓ Total Stock: 9,555 pcs
$ Price Range: $0.86

TCA9539RTWR Available from 5 distributors

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✓ Non-Authorised

TCA9539RTWR 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

TCA9539RTWR Description

Short technical summary and product information.

The TCA9539RTWR from Texas Instruments is a 16-bit general-purpose parallel input/output (I/O) expander. It is designed to interface with microcontrollers via the I2C and SMBus protocols, operating at speeds up to 400 kHz.

 

This device supports a wide operating voltage range from 1.65V to 5.5V, making it suitable for various system designs. It features configuration registers, an interrupt output, and a reset pin for enhanced control. The I/O ports are 5V tolerant, and the outputs have high-current drive capability suitable for directly driving LEDs.

 

The TCA9539RTWR is available in a compact 24-WQFN (4x4 mm) package, designed for surface mounting. Its operating temperature range is -40°C to 85°C. The expander includes features like polarity inversion, internal power-on reset, and noise filters on SCL and SDA inputs, contributing to robust performance.

 

With its 16 I/O channels and flexible interface options, the TCA9539RTWR is a versatile solution for expanding digital I/O capabilities in embedded systems, consumer electronics, and industrial applications.

TCA9539RTWR Quick Information

Product Type: IO Expander
Canonical Name: TCA9539RTWR 16-bit I2C/SMBus I/O Expander
Subcategory: IO Expander

TCA9539RTWR Compliance

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

TCA9539RTWR Estimated Pricing

Qty Low High
1+ $0.86 $0.86

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

TCA9539RTWR Features

  • 16-bit parallel input and output expansion.
  • I2C and SMBus interface support.
  • Wide operating voltage from 1.65V to 5.5V.
  • 400 kHz maximum clock frequency.
  • Available in a 24-WQFN package.

TCA9539RTWR Applications

  • Expand digital I/O capabilities.
  • Interface with microcontrollers.
  • Suitable for consumer electronics.
  • Used in embedded systems.

TCA9539RTWR FAQs

6 frequently asked questions generated from this part’s specifications.
What is the operating voltage range for the TCA9539RTWR?

The operating voltage range is 1.65V to 5.5V.

What package type is the TCA9539RTWR available in?

The TCA9539RTWR is available in a 24-WFQFN Exposed Pad package.

What is the operating temperature range for this I/O expander?

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

Is the TCA9539RTWR RoHS compliant?

The RoHS status is RoHS3 Compliant.

How many I/O pins does the TCA9539RTWR provide?

The TCA9539RTWR provides 16 I/O pins.

What is the maximum clock frequency supported by the TCA9539RTWR?

The maximum clock frequency is 400 kHz.

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