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PCA9554BBSHP The NXP Semiconductors PCA9554BBSHP is an 8-bit I2C/SMBus GPIO expander. It operates from 1.65V to 5.5V and features an interrupt output and weak pull-up resistors.
Mfr Part #:

PCA9554BBSHP

Available from 1 distributors
Mfr Name: NXP Semiconductors
NXP Semiconductors
The NXP Semiconductors PCA9554BBSHP is an 8-bit I2C/SMBus GPIO expander. It operates from 1.65V to 5.5V and features an interrupt output and weak pull-up resistors.
✓ Total Stock: 38 pcs
$ Price Range: $1.15

PCA9554BBSHP Available from 1 distributor

✓ Authorised
✓ Non-Authorised
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Flip Electronics ✓
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38 pcs
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PCA9554BBSHP 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
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PCA9554BBSHP Description

Short technical summary and product information.

The PCA9554BBSHP from NXP Semiconductors is a low-voltage, 8-bit General Purpose Input/Output (GPIO) expander designed for I2C-bus and SMBus applications. It offers a wide operating supply voltage range from 1.65 V to 5.5 V, making it suitable for interfacing with modern microprocessors and microcontrollers. This device includes a register set for configuration, input, output, and polarity inversion.

 

The PCA9554BBSHP features an open-drain interrupt (INT) output that activates when an input state changes, signaling the system master without requiring constant I2C-bus communication. The I/O pins have 25 mA sink capabilities, allowing for direct driving of LEDs. It supports a clock frequency of up to 400 kHz and operates within a temperature range of -40°C to 85°C.

 

This expander is supplied in a 16-HVQFN (3x3) package and is designed for surface mounting. It includes weak pull-up resistors on all input/output pins, eliminating the need for external components. The device also features a power-on reset function that initializes its registers to default values.

 

With its flexible GPIO capabilities and low power consumption, the PCA9554BBSHP is ideal for applications such as ACPI power switches, sensor interfaces, push button monitoring, LED control, and fan control, where additional I/Os are needed with minimal interconnections.

PCA9554BBSHP Quick Information

Product Type: IO Expander
Canonical Name: PCA9554BBSHP 8-bit I2C/SMBus GPIO Expander
Subcategory: IO Expander

PCA9554BBSHP Compliance

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

PCA9554BBSHP Estimated Pricing

Qty Low High
1+ $1.15 $1.15

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

PCA9554BBSHP Features

  • 8-bit I2C/SMBus GPIO expander.
  • Wide 1.65V to 5.5V operating voltage.
  • 400 kHz clock frequency support.
  • Interrupt output for event notification.
  • 16-HVQFN package for surface mounting.

PCA9554BBSHP Applications

  • Extends I/O for microcontrollers.
  • Ideal for LED control applications.
  • Suitable for sensor interfacing.
  • Used in power management systems.
  • Supports push button monitoring.

PCA9554BBSHP FAQs

5 frequently asked questions generated from this part’s specifications.
What is the operating voltage range for the PCA9554BBSHP?

The PCA9554BBSHP operates from 1.65 V to 5.5 V.

What is the operating temperature range of the PCA9554BBSHP?

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

What package type is the PCA9554BBSHP supplied in?

The PCA9554BBSHP is supplied in a 16-HVQFN (3x3) package for surface mounting.

Does the PCA9554BBSHP have an interrupt output?

Yes, the PCA9554BBSHP features an open-drain interrupt output.

What is the maximum clock frequency for the PCA9554BBSHP?

The device supports a clock frequency of up to 400 kHz.

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