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PCA9555PW The Texas Instruments PCA9555PW is a 16-bit I/O expander designed for I2C and SMBus interfaces. It operates over a voltage range of 2.3V to 5.5V and supports a maximum clock frequency of 400kHz.
Mfr Part #:

PCA9555PW

Available from 2 distributors
Mfr Name: Texas Instruments
Texas Instruments
The Texas Instruments PCA9555PW is a 16-bit I/O expander designed for I2C and SMBus interfaces. It operates over a voltage range of 2.3V to 5.5V and supports a maximum clock frequency of 400kHz.
✓ Total Stock: 188 pcs
$ Price Range: $1.11

PCA9555PW Available from 2 distributors

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Speed Components Ltd ✓
Non-Authorised Inventory information
185 pcs
On Request
185 pcs On Request 1 On Request On Request On Request On Request On Request
Bristol Electronics ✓
Non-Authorised Inventory information
3 pcs
On Request
3 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.

PCA9555PW 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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PCA9555PW Description

Short technical summary and product information.

The Texas Instruments PCA9555PW is a versatile 16-bit I/O expander that facilitates communication via the I2C and SMBus protocols. This device is suitable for applications requiring additional digital I/O pins, offering 16 configurable I/O channels.

 

Key electrical specifications include an operating voltage range from 2.3V to 5.5V and a maximum clock frequency of 400kHz. The expander features an active-low interrupt output and supports polarity inversion. It is designed for surface mount applications and comes in a 24-TSSOP package.

 

The operating temperature range for the PCA9555PW is -40°C to 85°C, making it suitable for a variety of environmental conditions. The device also boasts low standby current consumption, rated at 1µA maximum.

 

This I/O expander is compatible with most microcontrollers and provides 5V tolerant I/O ports. It is ideal for expanding the I/O capabilities of embedded systems where space is limited and efficient communication is required.

PCA9555PW Quick Information

Product Type: IO Expander
Canonical Name: PCA9555PW 16-bit I2C/SMBus I/O Expander
Subcategory: I2C, I3C & SPI general-purpose I/Os (GPIOs)

PCA9555PW Compliance

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

PCA9555PW Estimated Pricing

Qty Low High
1+ $1.11 $1.11

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

PCA9555PW Features

  • 16-bit I2C/SMBus I/O expander.
  • Operates from 2.3V to 5.5V supply.
  • Supports 400kHz fast I2C bus.
  • Includes active-low interrupt output.
  • Available in 24-TSSOP package.

PCA9555PW Applications

  • Expand microcontroller I/O capabilities.
  • Interface with I2C or SMBus systems.
  • Suitable for embedded system designs.
  • Control and monitor digital signals.

PCA9555PW FAQs

6 frequently asked questions generated from this part’s specifications.
What is the operating voltage range for the PCA9555PW?

The PCA9555PW operates within a voltage range of 2.3V to 5.5V.

What is the maximum clock frequency supported by the PCA9555PW?

The maximum clock frequency supported by the PCA9555PW is 400kHz.

What is the operating temperature range for the PCA9555PW?

The PCA9555PW can operate in temperatures ranging from -40°C to 85°C.

What package type is the PCA9555PW available in?

The PCA9555PW is available in a 24-TSSOP package.

Does the PCA9555PW have an interrupt output?

Yes, the PCA9555PW features an active-low interrupt output.

How many I/O pins does the PCA9555PW provide?

The PCA9555PW provides 16 I/O pins.

PCA9555PW Alternate Parts

Same form/fit/function or matching attribute configuration across different manufacturers.
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PCA9539PW
PCA9539PW
Burr-Brown Corp
The Burr-Brown Corp PCA9539PW is an IO Expander featuring 16 I/O channels and supporting I2C and SMBus interfaces. It operates within a voltage range of 2.3V to 5.5V.
View Part
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