PCAL6408APWJ The NXP Semiconductors PCAL6408APWJ is an 8-bit I2C/SMBus I/O expander. It features a wide operating voltage range and a 400kHz clock frequency.
Mfr Part #:

PCAL6408APWJ

Available from 2 distributors
Mfr Name: NXP Semiconductors
NXP Semiconductors
The NXP Semiconductors PCAL6408APWJ is an 8-bit I2C/SMBus I/O expander. It features a wide operating voltage range and a 400kHz clock frequency.
Total Stock: 148,000 pcs
$ Price Range: $1.15

PCAL6408APWJ Available from 2 distributors

Authorised
Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Non-Authorised Inventory information
145,000 pcs
145000 pcs On Request 1 On Request On Request On Request On Request On Request
Non-Authorised Inventory information
3,000 pcs
3000 pcs On Request 1 On Request On Request On Request On Request 2026-02-16 21:33:16

PCAL6408APWJ 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
Voltage

PCAL6408APWJ Description

Short technical summary and product information.

The PCAL6408APWJ from NXP Semiconductors is an 8-bit general-purpose I/O expander designed for remote I/O expansion via the I2C-bus interface. It is suitable for battery-powered mobile applications and simplifies interconnections between microcontrollers and peripherals operating at different voltage levels due to its built-in level shifting feature.

 

This I/O expander operates with a wide VDD range of 1.65 V to 5.5 V, allowing seamless communication with both low-voltage microprocessors and higher-voltage peripherals. It supports I2C and SMBus interfaces with a clock frequency of up to 400 kHz. The device offers 8 I/O channels with open-drain and push-pull output types.

 

Packaged in a 16-TSSOP, the PCAL6408APWJ is designed for surface mount applications. It operates within a temperature range of -40°C to 85°C. Additional features include an interrupt output and POR (Power-On Reset).

 

The PCAL6408APWJ contains configurable registers for I/O direction, output state, and polarity inversion. It also includes Agile I/O features such as programmable output drive strength, latchable inputs, programmable pull-up/pull-down resistors, and a maskable interrupt.

PCAL6408APWJ Quick Information

Product Type: I/O Expander
Canonical Name: PCAL6408A 8-bit I2C-bus/SMBus I/O Expander with Interrupt Output, Reset, and Configuration Registers
Subcategory: Interface

PCAL6408APWJ Compliance

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

PCAL6408APWJ Estimated Pricing

Qty Low High
1+ $1.15 $1.15

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

PCAL6408APWJ Features

  • 8-bit I2C/SMBus I/O expander
  • 1.65V to 5.5V dual power rail operation
  • Built-in level shifting feature
  • 400 kHz clock frequency support
  • 16-TSSOP surface mount package

PCAL6408APWJ Applications

  • Remote I/O expansion
  • Mixed-signal environments
  • Battery-powered mobile applications
  • Interfacing with sensors and buttons

PCAL6408APWJ FAQs

4 frequently asked questions generated from this part’s specifications.
What is the operating voltage range for the PCAL6408APWJ?

The PCAL6408APWJ operates with a voltage range of 1.65V to 5.5V.

What package type is the PCAL6408APWJ available in?

The PCAL6408APWJ is available in a 16-TSSOP package.

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

The operating temperature range for the PCAL6408APWJ is -40°C to 85°C.

Does the PCAL6408APWJ have an interrupt output?

Yes, the PCAL6408APWJ features an interrupt output.

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