TCA9555RGER The Texas Instruments TCA9555RGER is a 16-bit I2C/SMBus IO expander designed for general-purpose remote I/O expansion. It operates from 1.65V to 5.5V and features a 400 kHz clock frequency.
Mfr Part #:

TCA9555RGER

Available from 3 distributors
Mfr Name: Texas Instruments
Texas Instruments
The Texas Instruments TCA9555RGER is a 16-bit I2C/SMBus IO expander designed for general-purpose remote I/O expansion. It operates from 1.65V to 5.5V and features a 400 kHz clock frequency.
Total Stock: 29,050 pcs
$ Price Range: $0.70

TCA9555RGER Available from 3 distributors

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12,000 pcs
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5,050 pcs
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TCA9555RGER Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
AEC Qualified
Automotive Grade
Clock Frequency
Current
Features
Industrial Grade
Interface
Interrupt Output
Medical Grade
Military Grade
Mounting Type
Number of I
Operating Temperature
Output Type
Supplier Device Package
Supplier Package
Voltage

TCA9555RGER Description

Short technical summary and product information.

The TCA9555RGER from Texas Instruments is a 16-bit I/O expander that facilitates remote I/O expansion for microcontrollers via the I2C interface. It supports I2C and SMBus communication protocols with a maximum clock frequency of 400 kHz.

 

This device operates within a voltage range of 1.65V to 5.5V and is suitable for surface mount applications, housed in a 24-VQFN (4x4) package. Key features include an active-low interrupt output and POR (Power-On Reset).

 

The TCA9555RGER offers 16 I/O pins, configurable as inputs or outputs, and supports latched outputs with high-current drive capability. Its operating temperature range is -40°C to 85°C, making it versatile for various environmental conditions.

TCA9555RGER Quick Information

Product Type: IO Expander
Canonical Name: TCA9555 16-bit I2C/SMBus I/O Expander
Subcategory: I2C, I3C & SPI ICs

TCA9555RGER Compliance

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

TCA9555RGER Estimated Pricing

Qty Low High
1+ $0.70 $0.70

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

TCA9555RGER Features

  • 16-bit I2C/SMBus IO expander.
  • Operates from 1.65V to 5.5V.
  • 400 kHz maximum clock frequency.
  • Active-low interrupt output.
  • Surface mount 24-VQFN package.

TCA9555RGER Applications

  • Provides remote I/O expansion.
  • Suitable for microcontroller interfaces.
  • Used in embedded systems design.
  • Enables flexible port configuration.

TCA9555RGER FAQs

6 frequently asked questions generated from this part’s specifications.
What is the operating voltage range for the TCA9555RGER?

The operating voltage range is 1.65V to 5.5V.

What is the operating temperature range for the TCA9555RGER?

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

What is the maximum clock frequency for the TCA9555RGER?

The maximum clock frequency is 400 kHz.

What interface does the TCA9555RGER use?

The TCA9555RGER uses the I²C and SMBus interface.

Does the TCA9555RGER have an interrupt output?

Yes, the TCA9555RGER has an active-low interrupt output.

What package is the TCA9555RGER supplied in?

The TCA9555RGER is supplied in a 24-VQFN (4x4) package for surface mounting.

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