TCA9554ADBR Semiconductors - ICs by Texas Instruments


Status: Unknown
Series: -
RoHS: Unknown
View Datasheet Manufacturer Site View Pricing & Stock

The TCA9554A is a 16-pin device that provides 8 bits of general purpose parallel input/output (I/O) expansion for the two-line bidirectional I2C bus (or SMBus) protocol. The device can operate with a power supply voltage ranging from 1.65 V to 5.5 V. The device supports both 100-kHz (Standard-mode) and 400-kHz (Fast-mode) clock frequencies. I/O expanders such as the TCA9554A provide a simple solution when additional I/Os are needed for switches, sensors, push-buttons, LEDs, fans, and other similar devices. The features of the TCA9554A include an interrupt that is generated on the INT pin whenever an input port changes state. The A0, A1, and A2 hardware selectable address pins allow up to eight TCA9554A devices on the same I2C bus. The device can also be reset to its default sate by cycling the power supply and causing a power-on reset.

Prices starting from US$0.20

Distributor Starting From Stock
Logo for Newark Electronics Newark Electronics US$0.20
Buy Now
Logo for Texas Instruments Texas Instruments US$0.41
Buy Now
View Full Pricing & Stock Comparison


Chip Configuration 8bit
Bus Frequency 400kHz
IC Interface Type I2C SMBus
Supply Voltage Min 1.65V
Supply Voltage Max 5.5V
Interface Case Style SSOP
No. of Pins 16Pins
No. of I/O's 8I/O's
Product Range -
Automotive Qualification Standard -
RoHS Phthalates Compliant Yes
MSL MSL 1 - Unlimited
SVHC No SVHC (27-Jun-2018)

Alternative Descriptions

I/O Expander, 8Bit, 400Khz, Ssop-16 | Newark Electronics
Remote 8-Bit I2C I/O Expander SSOP16 | RS
8-bit 1.65- to 5.5-V I2C/SMBus I/O expander with interrupt, weak pull-up & config registers | Texas Instruments

Frequently Asked Questions

Where can I find additional details, specifications and documents for a TCA9554ADBR?

Additional datasheets, footprints and schematics for TCA9554ADBR are listed on our Part Details page. You can also find images and similar parts to TCA9554ADBR on this page.

What pricing and inventory information can I view?

Distributor pricing and stock information is available for TCA9554ADBR on our Product Comparison page. Access via the 'View Pricing & Stock' button to view TCA9554ADBR price breaks, MOQs, lead times, inventory and SKUs from distributors.

What category does TCA9554ADBR fall under?

The TCA9554ADBR is listed under Electronic & Electrical Components > Semiconductors - ICs > Driver & Interface ICs.

Can I view similar or alternative parts?

You can view similar parts to TCA9554ADBR when available in the Driver & Interface ICs range under the specifications section at the bottom of the details page.

Who can I contact for technical support of the product?

Submit any questions directly to the customer support team of the distributor listing the product. For the TCA9554ADBR you can contact the distributor directly for product support, shipping queries etc.

Is the TCA9554ADBR RoHS compliant?

This part has not been flagged as RoHS Compliant.

Which authorised distributors for TCA9554ADBR have stock available?

Authorised distributors including Newark Electronics, RS and Texas Instruments have stock available or on a lead time for TCA9554ADBR.

How do I check stock and lead times for all distributors?

Stock availability and lead times will be displayed for TCA9554ADBR often in real-time on the comparison pages.

What if I can't find stock of TCA9554ADBR?

You can fill out our help required form which you can use to request a quote for TCA9554ADBR from some of our verified obsolescence suppliers. Alternatively, contact us via our web chat in the bottom left of your screen and one of our team will try to help.

We use cookies to improve your experience. See our privacy policy.