TCA9535PWR Semiconductors - ICs by Texas Instruments


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

The TCA9535 is a 24-pin device that provides 16 bits of general purpose parallel input and 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 TCA9535 consists of two 8-bit Configuration (input or output selection), Input Port, Output Port, and Polarity Inversion (active-high or active-low operation) registers. At power on, the I/Os are configured as inputs. The system master can enable the I/Os as either inputs or outputs by writing to the I/O configuration bits. The TCA9535 is identical to the TCA9555, except that the TCA9535 does not include the internal I/O pull-up resistor, which requires pull-ups and pulldowns on unused I/O pins when configured as an input and undriven.

Where to Buy

Prices starting from US$0.42

Distributor Stock
Logo for RS
from US$0.67
in stock
Buy Now
Logo for Texas Instruments
Texas Instruments
from US$0.42
in stock
Buy Now
Logo for Chip One Stop
Chip One Stop
from US$0.62
in stock
Buy Now
Logo for Newark Electronics
Newark Electronics
from US$1.29
in stock
Buy Now
Logo for element14
from US$0.68
in stock
Buy Now
Logo for Farnell
from US$0.73
in stock
Buy Now
Logo for Transfer Multisort Elektronik
Transfer Multisort Elektronik
from US$1.03
in stock
Buy Now


Chip Configuration 16bit
Bus Frequency 400kHz
IC Interface Type I2C SMBus
Supply Voltage Min 1.65V
Supply Voltage Max 5.5V
Interface Case Style TSSOP
No. of Pins 24Pins
No. of I/O's 16I/O's
Product Range -
Automotive Qualification Standard -
RoHS Phthalates Compliant Yes
MSL MSL 1 - Unlimited
SVHC No SVHC (27-Jun-2018)

Alternative Descriptions

16-bit 1.65- to 5.5-V I2C/SMBus I/O expander with interrupt & config registers | Texas Instruments
I/O Expander, TCA9535PWR | RS
I/O Expander, 16Bit, I2C/Smbus, Tssop-24 | Newark Electronics
I/O EXPANDER, 16BIT, I2C/SMBUS, TSSOP-24 | element14
IC: interface | Transfer Multisort Elektronik

Frequently Asked Questions

Where can I find additional details, specifications and documents for a TCA9535PWR?

Additional datasheets, footprints and schematics for TCA9535PWR are listed on our Part Details page. You can also find images and similar parts to TCA9535PWR on this page.

What pricing and inventory information can I view?

Distributor pricing and stock information is available for TCA9535PWR on our Product Comparison page. Access via the 'View Pricing & Stock' button to view TCA9535PWR price breaks, MOQs, lead times, inventory and SKUs from distributors.

What category does TCA9535PWR fall under?

The TCA9535PWR is listed under Electronic & Electrical Components > Semiconductors - ICs > Driver & Interface ICs.

Can I view similar or alternative parts?

You can view similar parts to TCA9535PWR 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 TCA9535PWR you can contact the distributor directly for product support, shipping queries etc.

Is the TCA9535PWR RoHS compliant?

This part has not been flagged as RoHS Compliant.

Which authorised distributors for TCA9535PWR have stock available?

Authorised distributors including Texas Instruments, RS, Chip One Stop, Newark Electronics and element14 have stock available or on a lead time for TCA9535PWR.

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

Stock availability and lead times will be displayed for TCA9535PWR often in real-time on the comparison pages.

What if I can't find stock of TCA9535PWR?

You can fill out our help required form which you can use to request a quote for TCA9535PWR 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.