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PCA9555DB The Texas Instruments PCA9555DB is a 16-bit I/O expander featuring I²C and SMBus interfaces. It operates at clock frequencies up to 400 kHz and supports a voltage range of 2.3V to 5.5V.
Mfr Part #:

PCA9555DB

Available from 1 distributors
Mfr Name: Texas Instruments
Texas Instruments
The Texas Instruments PCA9555DB is a 16-bit I/O expander featuring I²C and SMBus interfaces. It operates at clock frequencies up to 400 kHz and supports a voltage range of 2.3V to 5.5V.
✓ Total Stock: 45,200 pcs
$ Price Range: $1.15

PCA9555DB Available from 1 distributor

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Romaks Technologies ✓
Non-Authorised Inventory information
45,200 pcs
On Request
45200 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.

PCA9555DB Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Clock Frequency
Current
Features
Interface
Interrupt Output
Lead Spacing
Mounting Type
Number of I
Operating Temperature
Output Type
Supplier Device Package
Tape & Reel
Voltage
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PCA9555DB Description

Short technical summary and product information.

The Texas Instruments PCA9555DB is a 16-bit I/O expander designed for expanding the I/O capabilities of microcontrollers. It communicates via the I²C and SMBus interfaces, supporting clock frequencies up to 400 kHz.

 

This device operates within a voltage range of 2.3V to 5.5V and features push-pull output types. It includes an interrupt output and operates reliably within a temperature range of -40°C to 85°C.

 

The PCA9555DB is supplied in a 24-SSOP package, suitable for surface mounting. Its POR (Power-On Reset) feature ensures proper initialization upon power-up. This component is designed for applications requiring additional digital I/O pins without consuming significant microcontroller resources.

PCA9555DB Quick Information

Product Type: IO Expander
Canonical Name: PCA9555DB I/O Expander
Subcategory: IO Expanders

PCA9555DB Compliance

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

PCA9555DB Estimated Pricing

Qty Low High
1+ $1.15 $1.15

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

PCA9555DB Features

  • 16-bit I/O expander with I²C/SMBus interface.
  • Operates at up to 400 kHz clock frequency.
  • Wide supply voltage range of 2.3V to 5.5V.
  • Surface mountable in a 24-SSOP package.
  • Operates from -40°C to 85°C.

PCA9555DB Applications

  • Expands microcontroller I/O capabilities.
  • Suitable for embedded system designs.
  • Used in applications requiring digital signal control.
  • Facilitates communication via I²C bus.

PCA9555DB FAQs

4 frequently asked questions generated from this part’s specifications.
What is the operating voltage for the PCA9555DB?

The PCA9555DB operates from 2.3V to 5.5V.

What package type is the PCA9555DB available in?

The PCA9555DB is available in a 24-SSOP package.

What is the operating temperature range of the PCA9555DB?

The PCA9555DB operates within a temperature range of -40°C to 85°C.

What interface protocols does the PCA9555DB support?

The PCA9555DB supports I²C and SMBus interfaces.

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