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PCA9539DB The Texas Instruments PCA9539DB is a 16-bit I2C/SMBus IO expander. It operates with a voltage range of 2.3V to 5.5V and a maximum clock frequency of 400 kHz.
Mfr Part #:

PCA9539DB

Available from 1 distributors
Mfr Name: Texas Instruments
Texas Instruments
The Texas Instruments PCA9539DB is a 16-bit I2C/SMBus IO expander. It operates with a voltage range of 2.3V to 5.5V and a maximum clock frequency of 400 kHz.
✓ Total Stock: 30,133 pcs
$ Price Range: $2.01

PCA9539DB Available from 1 distributor

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Romaks Technologies ✓
Non-Authorised Inventory information
30,133 pcs
On Request
30133 pcs On Request 1 On Request On Request On Request 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.

PCA9539DB Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Clock Frequency
Current
Features
Interface
Interrupt Output
Mounting Type
Number of I
Operating Temperature
Output Type
Supplier Device Package
Supplier Package
Voltage
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PCA9539DB Description

Short technical summary and product information.

The Texas Instruments PCA9539DB is a 16-bit I/O expander designed for use with I2C and SMBus interfaces. It supports a wide operating voltage range from 2.3V to 5.5V, making it versatile for various microcontroller applications.

 

This device features a maximum clock frequency of 400 kHz and includes an interrupt output and a power-on reset (POR) function. The PCA9539DB is available in a 24-SSOP package, suitable for surface mount applications. It operates within an environmental temperature range of -40°C to 85°C.

 

With 16 I/O pins, this expander is ideal for systems requiring additional digital I/Os. The latched outputs provide high-current drive capability, useful for directly driving LEDs. Its 5V tolerant I/O ports ensure compatibility with a broad range of microcontrollers.

PCA9539DB Quick Information

Product Type: IO Expander
Canonical Name: PCA9539DB 16-bit I2C/SMBus I/O Expander
Subcategory: General Purpose I/Os (GPIOs)

PCA9539DB Compliance

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

PCA9539DB Estimated Pricing

Qty Low High
1+ $2.01 $2.01

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

PCA9539DB Features

  • 16-bit I2C/SMBus IO expander.
  • Wide 2.3V to 5.5V operating voltage.
  • 400 kHz maximum clock frequency.
  • Surface mount 24-SSOP package.
  • Includes interrupt and reset features.

PCA9539DB Applications

  • Extends microcontroller I/O capabilities.
  • Suitable for embedded system designs.
  • Ideal for LED control applications.
  • Interfacing with I2C/SMBus devices.

PCA9539DB FAQs

4 frequently asked questions generated from this part’s specifications.
What is the operating voltage range for the PCA9539DB?

The PCA9539DB operates within a voltage range of 2.3V to 5.5V.

What package type is the PCA9539DB available in?

The PCA9539DB is available in a 24-SSOP package.

What is the operating temperature range for the PCA9539DB?

The PCA9539DB operates between -40°C and 85°C.

Does the PCA9539DB have an interrupt output?

Yes, the PCA9539DB features an interrupt output.

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