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TCA9554APWR The Texas Instruments TCA9554APWR is an 8-bit I2C/SMBus IO expander. It operates from 1.65V to 5.5V and supports a 400kHz clock frequency.
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TCA9554APWR

Available from 2 distributors
Mfr Name: Texas Instruments
Texas Instruments
The Texas Instruments TCA9554APWR is an 8-bit I2C/SMBus IO expander. It operates from 1.65V to 5.5V and supports a 400kHz clock frequency.
✓ Total Stock: 3,497 pcs
$ Price Range: $0.52

TCA9554APWR Available from 2 distributors

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✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Xingangxin ✓
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3,421 pcs
On Request
3421 pcs On Request 1 On Request On Request On Request On Request On Request
PROSOFT ELECTRONICS ✓
Non-Authorised Inventory information
76 pcs
On Request
76 pcs On Request 1 On Request On Request 21+ On Request On Request
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TCA9554APWR 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
Package Quantity
Supplier Device Package
Voltage
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TCA9554APWR Description

Short technical summary and product information.

The TCA9554APWR from Texas Instruments is an 8-bit general-purpose parallel input/output (I/O) expander designed for the I2C bus protocol. It operates within a wide voltage range of 1.65V to 5.5V, making it suitable for various system designs. This device supports both Standard-mode (100kHz) and Fast-mode (400kHz) I2C clock frequencies.

 

Key features include an interrupt output, weak pull-up resistors, and configuration registers. The I/O ports are 5V tolerant, and the device has three hardware address pins allowing up to eight devices on the I2C/SMBus. It offers input and output configuration registers, a polarity inversion register, and an internal power-on reset.

 

Packaged in a 16-TSSOP, the TCA9554APWR is designed for surface mount applications. Its operating temperature range is -40°C to 85°C. This I/O expander is a simple solution for applications requiring additional I/Os for switches, sensors, LEDs, and other similar devices.

TCA9554APWR Quick Information

Product Type: IO Expander
Canonical Name: TCA9554A 8-Bit I2C and SMBus Low-Power I/O Expander
Subcategory: IO Expander

TCA9554APWR Compliance

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

TCA9554APWR Estimated Pricing

Qty Low High
1+ $0.52 $0.52

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

TCA9554APWR Features

  • 8-bit I2C/SMBus IO expander.
  • Wide operating voltage from 1.65V to 5.5V.
  • Supports 400kHz Fast-mode I2C bus.
  • Includes interrupt output functionality.
  • Available in a 16-TSSOP package.

TCA9554APWR Applications

  • Expanding I/O ports for microcontrollers.
  • Adding switch and sensor inputs in systems.
  • Controlling LEDs and indicators directly.
  • Providing additional GPIOs for embedded designs.
  • Implementing interrupt-driven input monitoring.

TCA9554APWR FAQs

5 frequently asked questions generated from this part’s specifications.
What is the operating voltage range for the TCA9554APWR?

The TCA9554APWR operates from 1.65V to 5.5V.

What package type is the TCA9554APWR available in?

The TCA9554APWR is available in a 16-TSSOP package.

What is the operating temperature range for the TCA9554APWR?

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

Does the TCA9554APWR have an interrupt output?

Yes, the TCA9554APWR features an interrupt output.

What is the maximum clock frequency supported by the TCA9554APWR?

The TCA9554APWR supports a maximum clock frequency of 400 kHz.

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