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PCA9539DWR The Texas Instruments PCA9539DWR is a 16-bit I2C and SMBus I/O expander. It operates over a voltage range of 2.3V to 5.5V and supports a maximum clock frequency of 400kHz.
Mfr Part #:

PCA9539DWR

Available from 2 distributors
Mfr Name: Texas Instruments
Texas Instruments
The Texas Instruments PCA9539DWR is a 16-bit I2C and SMBus I/O expander. It operates over a voltage range of 2.3V to 5.5V and supports a maximum clock frequency of 400kHz.
✓ Total Stock: 48,450 pcs
$ Price Range: $1.59

PCA9539DWR Available from 2 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
40,178 pcs
On Request
40178 pcs On Request 1 On Request On Request On Request On Request On Request
Flip Electronics ✓
Non-Authorised Inventory information
8,272 pcs
On Request
8272 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.

PCA9539DWR 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
Supplier Package
Voltage
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PCA9539DWR Description

Short technical summary and product information.

The PCA9539DWR from Texas Instruments is a 16-bit remote I/O expander designed for I2C and SMBus applications. It features configuration registers, an interrupt output pin, and an active-low reset input, making it versatile for various control tasks.

 

This I/O expander operates with a supply voltage ranging from 2.3V to 5.5V and supports a fast I2C bus speed of up to 400kHz. It provides 16 I/O pins that are 5V tolerant. The device includes latched outputs with high-current drive capability, suitable for directly driving LEDs.

 

Packaged in a 24-SOIC form factor, the PCA9539DWR is designed for surface mount applications. Its operating temperature range is -40°C to 85°C. The device also offers low standby-current consumption, rated at a maximum of 1 µA.

 

Key features include addressability via two hardware address pins for up to four devices, polarity inversion register, and robust ESD protection exceeding 2000V for the human-body model and 1000V for the charged-device model.

PCA9539DWR Quick Information

Product Type: I/O Expander
Canonical Name: PCA9539DWR 16-Bit I2C/SMBus I/O Expander
Subcategory: I2C, I3C & SPI General-Purpose I/Os (GPIOs)

PCA9539DWR Compliance

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

PCA9539DWR Estimated Pricing

Qty Low High
1+ $1.59 $1.59

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

PCA9539DWR Features

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

PCA9539DWR Applications

  • Ideal for general-purpose I/O expansion.
  • Suitable for LED control applications.
  • Used in systems requiring I2C or SMBus interface.
  • Provides addressability for multiple devices.

PCA9539DWR FAQs

7 frequently asked questions generated from this part’s specifications.
What is the operating voltage range for the PCA9539DWR?

The PCA9539DWR operates from 2.3V to 5.5V.

What package type is the PCA9539DWR available in?

The PCA9539DWR is available in a 24-SOIC package.

What is the operating temperature range for the PCA9539DWR?

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

What is the RoHS status of the PCA9539DWR?

The PCA9539DWR is RoHS3 Compliant.

How many I/O pins does the PCA9539DWR have?

The PCA9539DWR has 16 I/O pins.

What is the maximum clock frequency supported by the PCA9539DWR?

The PCA9539DWR supports a maximum clock frequency of 400kHz.

Does the PCA9539DWR have an interrupt output?

Yes, the PCA9539DWR features an interrupt output.

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