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TCA9554ADBQR The Texas Instruments TCA9554ADBQR is an 8-bit I/O expander designed for I2C and SMBus interfaces. It operates from 1.65V to 5.5V and supports a clock frequency of up to 400kHz.
Mfr Part #:

TCA9554ADBQR

Available from 2 distributors
Mfr Name: Texas Instruments
Texas Instruments
The Texas Instruments TCA9554ADBQR is an 8-bit I/O expander designed for I2C and SMBus interfaces. It operates from 1.65V to 5.5V and supports a clock frequency of up to 400kHz.
✓ Total Stock: 4,634 pcs
$ Price Range: $0.55

TCA9554ADBQR Available from 2 distributors

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Optech Co.,Limited ✓
Non-Authorised Inventory information
2,922 pcs
On Request
2922 pcs On Request 1 On Request On Request 1519+ On Request On Request
Smaxon Electronics ✓
Non-Authorised Inventory information
1,712 pcs
On Request
1712 pcs On Request 1 On Request On Request 1519+ 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.

TCA9554ADBQR Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Clock Frequency
Features
Interface
Interrupt Output
Mounting Type
Number of I
Operating Temperature
Output Type
Supplier Device Package
Voltage
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TCA9554ADBQR Description

Short technical summary and product information.

The TCA9554ADBQR from Texas Instruments is an 8-bit I/O expander that facilitates communication over I2C and SMBus protocols. This device is suitable for applications requiring additional digital I/O pins, offering a flexible solution for system expansion.

 

Key electrical characteristics include an operating voltage range of 1.65V to 5.5V and a maximum clock frequency of 400kHz. The expander features an interrupt output and supports POR (Power-On Reset). Its 8 I/O pins can be configured through internal registers.

 

Packaged in a 16-SSOP (0.154", 3.90mm Width) surface-mount form factor, the TCA9554ADBQR is designed for standard PCB assembly processes. The operating temperature range is from -40°C to 85°C, making it suitable for a variety of environmental conditions.

TCA9554ADBQR Quick Information

Product Type: IO Expander
Series: I2C & SPI general-purpose I/Os (GPIOs)
Canonical Name: TCA9554A 8-bit I2C/SMBus I/O Expander with Interrupt Output and Configuration Registers
Subcategory: I2C, I3C & SPI ICs

TCA9554ADBQR Compliance

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

TCA9554ADBQR Estimated Pricing

Qty Low High
1+ $0.55 $0.55

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

TCA9554ADBQR Features

  • 8-bit I/O expander for I2C/SMBus.
  • Wide operating voltage from 1.65V to 5.5V.
  • Supports 400kHz fast I2C bus speed.
  • Includes an interrupt output feature.
  • Surface mountable in a 16-SSOP package.

TCA9554ADBQR Applications

  • Ideal for microcontroller I/O expansion
  • Used in sensor interfacing applications
  • Suitable for industrial control systems
  • Supports low-voltage digital circuits

TCA9554ADBQR FAQs

5 frequently asked questions generated from this part’s specifications.
What is the operating voltage range for the TCA9554ADBQR?

The operating voltage range is 1.65V to 5.5V.

What package type is the TCA9554ADBQR available in?

The TCA9554ADBQR is available in a 16-SSOP package.

What is the operating temperature range for this I/O expander?

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

Does the TCA9554ADBQR have an interrupt output?

Yes, the TCA9554ADBQR features an interrupt output.

What interface protocols does the TCA9554ADBQR support?

The TCA9554ADBQR supports I²C and SMBus interfaces.

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