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PCA9557D The Texas Instruments PCA9557D is an 8-bit I2C/SMBus I/O expander. It operates from 2.3V to 5.5V and features a 400kHz I2C bus speed.
Mfr Part #:

PCA9557D

Available from 1 distributors
Mfr Name: Texas Instruments
Texas Instruments
The Texas Instruments PCA9557D is an 8-bit I2C/SMBus I/O expander. It operates from 2.3V to 5.5V and features a 400kHz I2C bus speed.
✓ Total Stock: 239 pcs
$ Price Range: $0.86

PCA9557D Available from 1 distributor

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Tomark Electronics Ltd ✓
Non-Authorised Inventory information
239 pcs
On Request
239 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.

PCA9557D 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
Output Type
Supplier Device Package
Supplier Package
Voltage
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PCA9557D Description

Short technical summary and product information.

The Texas Instruments PCA9557D is an 8-bit I/O expander designed for I2C and SMBus interfaces. It offers a wide operating voltage range from 2.3V to 5.5V, making it suitable for various applications.

 

Key electrical specifications include a maximum clock frequency of 400kHz and 8 I/O pins with open-drain, push-pull output types. The device operates within a temperature range of -40°C to 85°C. It also features Power-On Reset (POR) and an active-low reset input.

 

This I/O expander is available in a 16-SOIC package and supports surface mount installation. It provides features like 5V tolerant I/O ports and low standby current consumption of 1µA maximum. The PCA9557D is designed for applications requiring additional digital I/Os through an I2C or SMBus interface.

PCA9557D Quick Information

Product Type: IO Expander
Canonical Name: PCA9557D 8-Bit I2C/SMBus I/O Expander
Subcategory: I2C, SMBus I/O Expander

PCA9557D Compliance

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

PCA9557D Estimated Pricing

Qty Low High
1+ $0.86 $0.86

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

PCA9557D Features

  • 8-bit I2C/SMBus I/O expander.
  • Wide 2.3V to 5.5V operating voltage.
  • 400kHz fast I2C bus speed.
  • Surface mount 16-SOIC package.
  • Operates from -40°C to 85°C.

PCA9557D Applications

  • Expands digital I/O capabilities.
  • Suitable for I2C and SMBus systems.
  • Used in embedded control applications.
  • Low power consumption designs.

PCA9557D FAQs

5 frequently asked questions generated from this part’s specifications.
What is the operating voltage range for the PCA9557D?

The operating voltage range is 2.3V to 5.5V.

What is the maximum clock frequency for the PCA9557D?

The maximum clock frequency is 400 kHz.

What is the operating temperature range of the PCA9557D?

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

What package type is the PCA9557D available in?

The PCA9557D is available in a 16-SOIC package.

Is the PCA9557D RoHS compliant?

Yes, the PCA9557D is RoHS3 Compliant.

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