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PCA9555PWR The Texas Instruments PCA9555PWR is a 16-bit I2C/SMBus IO Expander. It operates at a clock frequency of 400 kHz and features a voltage range of 2.3V to 5.5V.
Mfr Part #:

PCA9555PWR

Available from 3 distributors
Mfr Name: Texas Instruments
Texas Instruments
The Texas Instruments PCA9555PWR is a 16-bit I2C/SMBus IO Expander. It operates at a clock frequency of 400 kHz and features a voltage range of 2.3V to 5.5V.
✓ Total Stock: 24,004 pcs
$ Price Range: $0.75

PCA9555PWR Available from 3 distributors

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
PROSOFT ELECTRONICS ✓
Non-Authorised Inventory information
18,664 pcs
On Request
18664 pcs On Request 1 On Request On Request 25+ On Request On Request
Smaxon Electronics ✓
Non-Authorised Inventory information
4,000 pcs
On Request
4000 pcs On Request 1 On Request On Request 21+ On Request On Request
Xingangxin ✓
Non-Authorised Inventory information
1,340 pcs
On Request
1340 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.

PCA9555PWR Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Clock Frequency
Current
ESD Protection
Features
Interface
Interrupt Output
Latch-up Performance
Lead Spacing
Mounting Type
Number of I
Operating Temperature
Operating Temperature Range
Output Type
Supplier Device Package
Voltage
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PCA9555PWR Description

Short technical summary and product information.

The Texas Instruments PCA9555PWR is a 16-bit I/O expander designed for I2C and SMBus interfaces. It offers a flexible operating voltage range from 2.3V to 5.5V and supports a maximum clock frequency of 400 kHz.

 

This device features 16 I/O pins, an interrupt output, and configuration registers. It is available in a 24-TSSOP package, suitable for surface mount applications. The PCA9555PWR also includes features like POR (Power-On Reset) and supports high-current drive capability for directly driving LEDs.

 

With an operating temperature range of -40°C to 85°C, the PCA9555PWR is designed for various industrial and commercial applications. Its I2C/SMBus interface allows for easy integration with microcontrollers, expanding the number of available digital I/Os in a system.

PCA9555PWR Quick Information

Product Type: IO Expander
Canonical Name: PCA9555 16-bit I2C/SMBus I/O Expander
Subcategory: IO Expanders

PCA9555PWR Compliance

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

PCA9555PWR Estimated Pricing

Qty Low High
1+ $0.75 $0.75

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

PCA9555PWR Features

  • 16-bit I2C/SMBus IO expander.
  • 2.3V to 5.5V operating voltage range.
  • 400 kHz maximum clock frequency.
  • Available in a 24-TSSOP package.
  • Features interrupt output and configuration registers.

PCA9555PWR Applications

  • Extends microcontroller I/O capabilities.
  • Suitable for I2C and SMBus systems.
  • Ideal for LED driving applications.
  • Used in embedded system designs.

PCA9555PWR FAQs

6 frequently asked questions generated from this part’s specifications.
What is the operating voltage range for the PCA9555PWR?

The PCA9555PWR operates within a voltage range of 2.3V to 5.5V.

What package type is the PCA9555PWR available in?

The PCA9555PWR is available in a 24-TSSOP package.

What is the operating temperature range of the PCA9555PWR?

The operating temperature range for the PCA9555PWR is -40°C to 85°C.

Does the PCA9555PWR have an interrupt output?

Yes, the PCA9555PWR features an interrupt output.

What is the maximum clock frequency supported by the PCA9555PWR?

The PCA9555PWR supports a maximum clock frequency of 400 kHz.

How many I/O pins does the PCA9555PWR have?

The PCA9555PWR has 16 I/O pins.

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