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PCA9557RGYR The Texas Instruments PCA9557RGYR is an 8-bit I2C/SMBus I/O expander. It operates from 2.3V to 5.5V and features a 400kHz clock frequency.
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PCA9557RGYR

Available from 1 distributors
Mfr Name: Texas Instruments
Texas Instruments
The Texas Instruments PCA9557RGYR is an 8-bit I2C/SMBus I/O expander. It operates from 2.3V to 5.5V and features a 400kHz clock frequency.
✓ Total Stock: 1,178 pcs
$ Price Range: $1.07

PCA9557RGYR Available from 1 distributor

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Smaxon Electronics ✓
Non-Authorised Inventory information
1,178 pcs
On Request
1178 pcs On Request 1 On Request On Request 1406+ 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.

PCA9557RGYR 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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PCA9557RGYR Description

Short technical summary and product information.

The Texas Instruments PCA9557RGYR is an 8-bit I/O expander designed for I2C and SMBus interfaces. This device operates within a voltage range of 2.3V to 5.5V, making it suitable for a variety of applications. It supports a fast I2C bus frequency of up to 400kHz.

 

The PCA9557RGYR features 8 I/O pins that can be configured as inputs or outputs. The output type is configurable as open drain or push-pull, with current capabilities of 10mA and 25mA respectively. The device includes a Power-On Reset (POR) feature.

 

This I/O expander is available in a 16-VQFN (4x3.5) package and is designed for surface mounting. The operating temperature range is -40°C to 85°C, ensuring reliable performance in various environmental conditions. Its compact size and robust features make it a versatile component for expanding I/O capabilities in embedded systems.

PCA9557RGYR Quick Information

Product Type: IO Expander
Canonical Name: PCA9557 Remote 8-Bit I2C and SMBus Low-Power I/O Expander
Subcategory: I2C, SMBus I/O Expander

PCA9557RGYR Compliance

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

PCA9557RGYR Estimated Pricing

Qty Low High
1+ $1.07 $1.07

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

PCA9557RGYR Features

  • 8-bit I2C/SMBus I/O expander.
  • Operates from 2.3V to 5.5V supply.
  • Supports 400kHz fast I2C bus.
  • Configurable I/O with open-drain/push-pull.
  • Surface mount 16-VQFN package.

PCA9557RGYR Applications

  • Used in microcontroller I/O expansion
  • Ideal for embedded system interfaces
  • Suitable for industrial automation
  • Supports low-voltage operation

PCA9557RGYR FAQs

5 frequently asked questions generated from this part’s specifications.
What is the operating voltage range for the PCA9557RGYR?

The PCA9557RGYR operates from 2.3V to 5.5V.

What is the maximum clock frequency supported by the PCA9557RGYR?

The PCA9557RGYR supports a maximum clock frequency of 400 kHz.

How many I/O pins does the PCA9557RGYR have?

The PCA9557RGYR has 8 I/O pins.

What type of package is the PCA9557RGYR supplied in?

The PCA9557RGYR is supplied in a 16-VQFN (4x3.5) package.

What is the operating temperature range for the PCA9557RGYR?

The PCA9557RGYR operates in the temperature range of -40°C to 85°C.

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