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PCA9538APWJ The NXP Semiconductors PCA9538APWJ is an 8-bit I2C-bus and SMBus I/O expander. It features an operating voltage range of 1.65V to 5.5V and operates at clock frequencies up to 400 kHz.
Mfr Part #:

PCA9538APWJ

Available from 2 distributors
Mfr Name: NXP Semiconductors
NXP Semiconductors
The NXP Semiconductors PCA9538APWJ is an 8-bit I2C-bus and SMBus I/O expander. It features an operating voltage range of 1.65V to 5.5V and operates at clock frequencies up to 400 kHz.
✓ Total Stock: 2,614 pcs
$ Price Range: $1.15

PCA9538APWJ Available from 2 distributors

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Xingangxin ✓
Non-Authorised Inventory information
1,407 pcs
On Request
1407 pcs On Request 1 On Request On Request On Request On Request On Request
Optech Co.,Limited ✓
Non-Authorised Inventory information
1,207 pcs
On Request
1207 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.

PCA9538APWJ 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
Operating Voltage
Output Type
Supplier Device Package
Voltage
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PCA9538APWJ Description

Short technical summary and product information.

The PCA9538A from NXP Semiconductors is a low-voltage, 8-bit General Purpose Input/Output (GPIO) expander designed for I2C-bus/SMBus applications. It provides a simple solution for systems needing additional I/Os, such as ACPI power switches, sensors, push buttons, and LED control.

 

This device operates within a wide VDD range of 1.65 V to 5.5 V, allowing it to interface with modern microprocessors and microcontrollers. Key features include an open-drain interrupt output, an active LOW reset input, and 5V tolerant I/Os. The PCA9538A supports a 400 kHz Fast-mode I2C-bus and has 25 mA sink capabilities for directly driving LEDs.

 

Packaged in a 16-TSSOP, the PCA9538A is suitable for surface mount applications. Its operating temperature range is -40°C to 85°C. The device includes internal power-on reset and a RESET pin for immediate reset without de-powering.

 

The PCA9538A is a pin-to-pin replacement for the PCA9538 and other industry-standard devices, offering a flexible set of GPIOs for various design needs.

PCA9538APWJ Quick Information

Product Type: IO Expander
Canonical Name: PCA9538A I2C-bus I/O Expander
Subcategory: IO Expander

PCA9538APWJ Compliance

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

PCA9538APWJ Estimated Pricing

Qty Low High
1+ $1.15 $1.15

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

PCA9538APWJ Features

  • 8-bit I2C-bus and SMBus I/O expander.
  • Wide operating voltage range of 1.65V to 5.5V.
  • Supports 400 kHz Fast-mode I2C-bus.
  • Includes interrupt and reset functions.
  • Surface mount 16-TSSOP package.

PCA9538APWJ Applications

  • Provides additional I/O for microcontrollers.
  • Suitable for ACPI power switches.
  • Used for sensor and push button interfaces.
  • Enables direct LED control.
  • Simplifies system interconnections.

PCA9538APWJ FAQs

6 frequently asked questions generated from this part’s specifications.
What is the operating voltage range for the PCA9538APWJ?

The PCA9538APWJ operates from 1.65V to 5.5V.

What package type is the PCA9538APWJ available in?

The PCA9538APWJ is available in a 16-TSSOP package.

What is the operating temperature range for this IO Expander?

The operating temperature range for the PCA9538APWJ is -40°C to 85°C.

What is the RoHS status of the PCA9538APWJ?

The PCA9538APWJ is RoHS3 Compliant.

How many I/O channels does the PCA9538APWJ offer?

The PCA9538APWJ offers 8 I/O channels.

What is the maximum clock frequency supported by the PCA9538APWJ?

The PCA9538APWJ supports a maximum clock frequency of 400 kHz.

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