DistyParts Icon
PCA9539DBR The Texas Instruments PCA9539DBR is a 16-bit I2C/SMBus I/O expander. It features a 400kHz clock speed, operates from 2.3V to 5.5V, and comes in a 24-SSOP package.
Mfr Part #:

PCA9539DBR

Available from 1 distributors
Mfr Name: Texas Instruments
Texas Instruments
The Texas Instruments PCA9539DBR is a 16-bit I2C/SMBus I/O expander. It features a 400kHz clock speed, operates from 2.3V to 5.5V, and comes in a 24-SSOP package.
✓ Total Stock: 1,000 pcs
$ Price Range: $1.47

PCA9539DBR Available from 1 distributor

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Xingangxin ✓
Non-Authorised Inventory information
1,000 pcs
On Request
1000 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.

PCA9539DBR Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
AEC Qualified
Automotive Grade
Clock Frequency
Current
ESD Protection
Features
Industrial Grade
Interface
Interrupt Output
Latch-up Performance
Lead Spacing
Medical Grade
Military Grade
Mounting Type
Number of I
Operating Temperature
Output Type
Supplier Device Package
Voltage
View Similar Products (0)

PCA9539DBR Description

Short technical summary and product information.

The Texas Instruments PCA9539DBR is a 16-bit I2C and SMBus compatible I/O expander. It offers configuration registers, an open-drain active-low interrupt output, and an active-low reset input. The device operates over a voltage range of 2.3V to 5.5V and supports a maximum clock frequency of 400kHz.

 

Designed for flexibility, the PCA9539DBR features 5-V tolerant I/O ports and latched outputs with high-current drive capability, suitable for directly driving LEDs. It allows addressing of up to four devices using two hardware address pins. The operating temperature range is -40°C to 85°C.

 

This I/O expander is available in a 24-SSOP package, designed for surface mount applications. Its low standby-current consumption of 1 µA maximum makes it suitable for power-sensitive designs. ESD protection exceeds JESD 22 standards, including 2000-V for the human-body model and 1000-V for the charged-device model.

PCA9539DBR Quick Information

Product Type: IO Expander
Canonical Name: PCA9539 I2C/SMBus I/O Expander
Subcategory: I2C, I3C & SPI General-Purpose I/Os (GPIOs)

PCA9539DBR Compliance

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

PCA9539DBR Estimated Pricing

Qty Low High
1+ $1.47 $1.47

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

PCA9539DBR Features

  • 16-bit I2C/SMBus compatible I/O expander.
  • Operates from 2.3V to 5.5V supply voltage.
  • Supports 400kHz Fast I2C bus speed.
  • Includes interrupt output and reset input.
  • Available in a 24-SSOP surface mount package.

PCA9539DBR Applications

  • Extends microcontroller I/O capabilities.
  • Suitable for LED driving applications.
  • Used in systems requiring addressable I/O expansion.
  • Ideal for power-sensitive designs.

PCA9539DBR FAQs

4 frequently asked questions generated from this part’s specifications.
What is the operating voltage range for the PCA9539DBR?

The PCA9539DBR operates from 2.3V to 5.5V.

What package type is the PCA9539DBR available in?

The PCA9539DBR is available in a 24-SSOP package.

What is the operating temperature range for the PCA9539DBR?

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

Is the PCA9539DBR RoHS compliant?

The PCA9539DBR is RoHS3 Compliant.

Home

Categories