PCA9534BS3,118 The NXP Semiconductors PCA9534BS3,118 is an 8-bit I2C-bus and SMBus IO Expander. It operates with a supply voltage range of 2.3V to 5.5V and features a maximum clock frequency of 400 kHz.
Mfr Part #:

PCA9534BS3,118

Available from 3 distributors
Mfr Name: NXP Semiconductors
NXP Semiconductors
The NXP Semiconductors PCA9534BS3,118 is an 8-bit I2C-bus and SMBus IO Expander. It operates with a supply voltage range of 2.3V to 5.5V and features a maximum clock frequency of 400 kHz.
Total Stock: 9,186 pcs
$ Price Range: $1.15

PCA9534BS3,118 Available from 3 distributors

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3,593 pcs
3593 pcs On Request 1 On Request On Request On Request On Request On Request
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2000 pcs On Request 1 On Request On Request On Request On Request 2026-02-16 21:33:16

PCA9534BS3,118 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Clock Frequency
Current
Features
Input Voltage
Interface
Interrupt Output
Lead Spacing
Mounting Style
Mounting Type
Number of I
Operating Temperature
Operating Voltage
Output Current
Output Type
Output Voltage
Power Dissipation
Supplier Device Package
Supplier Package
Voltage

PCA9534BS3,118 Description

Short technical summary and product information.

The PCA9534BS3,118 from NXP Semiconductors is a 16-pin CMOS device providing 8 bits of General Purpose parallel Input/Output (GPIO) expansion for I2C-bus/SMBus applications. It is designed to enhance I2C-bus I/O expansion with features like 5V I/O tolerance, low supply current, individual I/O configuration, and a 400 kHz clock frequency.

 

This IO Expander includes an 8-bit Configuration register, an 8-bit Input register, an 8-bit Output register, and an 8-bit Polarity Inversion register. The system master can configure the I/Os as inputs or outputs by writing to the I/O configuration bits. The device features an open-drain interrupt output that activates when any input state differs from its corresponding input port register state.

 

Key electrical specifications include an operating supply voltage range of 2.3V to 5.5V, 5V tolerant I/Os, and a maximum clock frequency of 400 kHz. The device supports I2C and SMBus interfaces. It is offered in a 16-HVQFN (3x3) package, suitable for surface mounting.

 

The PCA9534BS3,118 operates within a temperature range of -40°C to 85°C. It includes features like a power-on reset (POR) and ESD protection exceeding 2000V HBM. This component is ideal for applications requiring additional I/O for ACPI power switches, sensors, push buttons, LEDs, and fans.

PCA9534BS3,118 Quick Information

Product Type: IO Expander
Series: PCA9534
Canonical Name: PCA9534BS3,118 8-bit I2C-bus and SMBus low power I/O port with interrupt
Subcategory: Interface ICs

PCA9534BS3,118 Compliance

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

PCA9534BS3,118 Estimated Pricing

Qty Low High
1+ $1.15 $1.15

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

PCA9534BS3,118 Features

  • 8-bit I2C-bus and SMBus GPIO expansion.
  • Wide operating voltage from 2.3V to 5.5V.
  • Supports 400 kHz clock frequency.
  • Features an open-drain interrupt output.
  • Available in a 16-HVQFN package.

PCA9534BS3,118 Applications

  • Expands I/O for microcontrollers.
  • Ideal for sensor interfacing.
  • Suitable for LED control.
  • Used in power management systems.

PCA9534BS3,118 FAQs

6 frequently asked questions generated from this part’s specifications.
What is the operating voltage range for the PCA9534BS3,118?

The operating voltage range is 2.3 V to 5.5 V.

What is the maximum clock frequency supported by the PCA9534BS3,118?

The maximum clock frequency is 400 kHz.

How many I/O pins does the PCA9534BS3,118 have?

The PCA9534BS3,118 has 8 I/O pins.

What is the operating temperature range for this IO Expander?

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

What package type is the PCA9534BS3,118 supplied in?

The PCA9534BS3,118 is supplied in a 16-HVQFN (3x3) package.

Does the PCA9534BS3,118 have an interrupt output?

Yes, the PCA9534BS3,118 features an interrupt output.

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