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CAT9555YI-T2 The On Semiconductor CAT9555YI-T2 is a 16-bit I/O expander with an I2C and SMBus interface. It operates at clock frequencies up to 400kHz.
Mfr Part #:

CAT9555YI-T2

Available from 6 distributors
Mfr Name: On Semiconductor
On Semiconductor
The On Semiconductor CAT9555YI-T2 is a 16-bit I/O expander with an I2C and SMBus interface. It operates at clock frequencies up to 400kHz.
✓ Total Stock: 14,643 pcs

CAT9555YI-T2 Available from 6 distributors

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CAT9555YI-T2 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Clock Frequency
Current
Features
Interface
Interrupt Output
Lead Style
Mounting Type
Number of I
Operating Temperature
Output Type
Supplier Device Package
Voltage
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CAT9555YI-T2 Description

Short technical summary and product information.

The CAT9555YI-T2 from On Semiconductor is a 16-bit I/O expander designed for interface expansion using I2C and SMBus protocols. This device supports clock frequencies up to 400 kHz, making it suitable for various communication needs.

 

With an operating voltage range of 2.3V to 5.5V, the CAT9555YI-T2 offers flexibility in system design. It features an interrupt output, providing efficient signaling capabilities. The device is available in a 24-TSSOP package, designed for surface mount applications.

 

Key electrical characteristics include output currents of 10mA and 24mA for high and low states, respectively. The operating temperature range is from -40°C to 85°C, ensuring reliable performance in diverse environmental conditions. The component is specified with Power-On Reset (POR) functionality.

 

This I/O expander is ideal for applications requiring additional digital I/O pins without consuming significant microcontroller resources. Its surface mount package facilitates integration into compact electronic designs.

CAT9555YI-T2 Quick Information

Product Type: I/O Expander
Canonical Name: CAT9555YI-T2 16-bit I2C and SMBus I/O Port with Interrupt
Subcategory: IO Expanders

CAT9555YI-T2 Compliance

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

CAT9555YI-T2 Features

  • 16-bit I/O expander with I2C/SMBus interface.
  • Operates at clock frequencies up to 400kHz.
  • Wide operating voltage range of 2.3V to 5.5V.
  • Includes interrupt output functionality.
  • Surface mount 24-TSSOP package.

CAT9555YI-T2 Applications

  • Ideal for expanding microcontroller I/O.
  • Suitable for embedded system designs.
  • Used in applications requiring digital control.
  • Facilitates communication via I2C/SMBus.

CAT9555YI-T2 FAQs

6 frequently asked questions generated from this part’s specifications.
What is the operating voltage for the CAT9555YI-T2?

The operating voltage for the CAT9555YI-T2 is between 2.3V and 5.5V.

What package type is the CAT9555YI-T2 supplied in?

The CAT9555YI-T2 is supplied in a 24-TSSOP package.

What is the operating temperature range of the CAT9555YI-T2?

The operating temperature range for the CAT9555YI-T2 is -40°C to 85°C.

Does the CAT9555YI-T2 have an interrupt output?

Yes, the CAT9555YI-T2 features an interrupt output.

What interface protocols does the CAT9555YI-T2 support?

The CAT9555YI-T2 supports I2C and SMBus interface protocols.

What is the maximum clock frequency for the CAT9555YI-T2?

The maximum clock frequency for the CAT9555YI-T2 is 400 kHz.

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