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PCA9557PW The PCA9557PW is an 8-bit I/O expander from Texas Instruments, supporting I2C and SMBus interfaces with a clock frequency of 400 kHz.
Mfr Part #:

PCA9557PW

Available from 2 distributors
Mfr Name: Texas Instruments
Texas Instruments
The PCA9557PW is an 8-bit I/O expander from Texas Instruments, supporting I2C and SMBus interfaces with a clock frequency of 400 kHz.
✓ Total Stock: 3,620 pcs
$ Price Range: $0.86

PCA9557PW Available from 2 distributors

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Components Technology Group, Inc. ✓
Non-Authorised Inventory information
3,500 pcs
On Request
3500 pcs On Request 1 On Request On Request On Request On Request On Request
Speed Components Ltd ✓
Non-Authorised Inventory information
120 pcs
On Request
120 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.

PCA9557PW 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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PCA9557PW Description

Short technical summary and product information.

The PCA9557PW is an integrated circuit from Texas Instruments designed as an 8-bit I/O expander. It communicates via I2C and SMBus interfaces, supporting a clock frequency of up to 400 kHz. The device operates within a voltage range of 2.3V to 5.5V, making it suitable for various low-voltage applications. It features open-drain and push-pull output types, with current ratings of 10mA and 25mA, respectively. This component is used in applications requiring additional I/O ports, such as microcontroller expansion, industrial automation, and embedded systems. The package type is 16 TSSOP, facilitating surface-mount assembly.

PCA9557PW Quick Information

Product Type: IO Expander
Canonical Name: PCA9557PW
Subcategory: IO Expander

PCA9557PW Compliance

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

PCA9557PW Estimated Pricing

Qty Low High
1+ $0.86 $0.86

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

PCA9557PW Features

  • Supports 8 I/O channels for expansion
  • Operates at 400 kHz I2C/SMBus clock
  • Voltage range from 2.3V to 5.5V
  • Open-drain and push-pull output types
  • Package type is 16 TSSOP

PCA9557PW Applications

  • Used for microcontroller I/O expansion
  • Suitable for industrial automation systems
  • Ideal for embedded system interfaces
  • Supports low-voltage digital circuits

PCA9557PW FAQs

1 frequently asked questions generated from this part’s specifications.
What is the operating voltage range of the PCA9557PW?

The PCA9557PW operates within a voltage range of 2.3V to 5.5V.

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