PCA9534PW The Texas Instruments PCA9534PW is an 8-bit I/O expander designed for I2C and SMBus interfaces. It operates from 2.3V to 5.5V and features an interrupt output.
Mfr Part #:

PCA9534PW

Available from 2 distributors
Mfr Name: Texas Instruments
Texas Instruments
The Texas Instruments PCA9534PW is an 8-bit I/O expander designed for I2C and SMBus interfaces. It operates from 2.3V to 5.5V and features an interrupt output.
Total Stock: 7,857 pcs
$ Price Range: $1.45

PCA9534PW Available from 2 distributors

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Non-Authorised
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6,500 pcs
6500 pcs On Request 1 On Request On Request On Request On Request On Request
Non-Authorised Inventory information
1,357 pcs
1357 pcs On Request 1 On Request On Request On Request On Request On Request

PCA9534PW 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
Supplier Package
Voltage

PCA9534PW Description

Short technical summary and product information.

The PCA9534PW from Texas Instruments is an 8-bit general-purpose I/O (GPIO) expander that communicates via the I2C and SMBus protocols. This device is suitable for applications requiring additional I/O pins, offering a flexible solution for expanding microcontroller capabilities.

 

Key electrical specifications include an operating voltage range of 2.3V to 5.5V and a maximum clock frequency of 400 kHz. The expander provides 8 I/O pins that can be configured as either inputs or outputs. It features an open-drain, active-low interrupt output that signals changes in I/O states, aiding in efficient system design. The I/O ports are 5V tolerant, providing compatibility with a wider range of system voltages.

 

Packaged in a 16-TSSOP, the PCA9534PW is designed for surface mounting. It offers features such as configuration registers, an internal power-on reset, and noise filtering on SCL/SDA inputs. The device also boasts low standby current consumption, making it suitable for power-sensitive applications. Latch-up performance exceeds 100 mA, and ESD protection is provided according to JESD 22 standards.

PCA9534PW Quick Information

Product Type: IO Expander
Canonical Name: PCA9534PW 8-bit I2C/SMBus I/O Expander
Subcategory: IO Expander

PCA9534PW Compliance

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

PCA9534PW Estimated Pricing

Qty Low High
1+ $1.45 $1.45

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

PCA9534PW Features

  • 8-bit I2C/SMBus general-purpose I/O expander.
  • Operates from 2.3V to 5.5V supply voltage.
  • Features an open-drain active-low interrupt output.
  • 16-TSSOP package for surface-mount applications.
  • Low standby current consumption of 1 µA.

PCA9534PW Applications

  • Expands microcontroller I/O capabilities.
  • Suitable for I2C and SMBus communication.
  • Ideal for power-sensitive designs.
  • Used in embedded systems requiring more GPIOs.

PCA9534PW FAQs

6 frequently asked questions generated from this part’s specifications.
What is the operating voltage range for the PCA9534PW?

The PCA9534PW operates from 2.3V to 5.5V.

What package type is the PCA9534PW available in?

The PCA9534PW is available in a 16-TSSOP package.

What is the operating temperature range for the PCA9534PW?

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

Does the PCA9534PW have an interrupt output?

Yes, the PCA9534PW features an open-drain active-low interrupt output.

What is the maximum clock frequency for the PCA9534PW?

The maximum clock frequency is 400 kHz.

How many I/O pins does the PCA9534PW have?

The PCA9534PW has 8 I/O pins.

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