TCA9555PWR TI I/O Expanders

The TCA9555PWR is a 16-bit I2C-bus and SMBus I/O expander from Texas Instruments, featuring 16 general-purpose I/O pins programmable as input or output. It operates from a 1.65V to 5.5V supply and supports both 100 kHz and 400 kHz clock frequencies. The device includes interrupt output and open-drain active-low reset input. Housed in a 24-pin TSSOP package, it operates over -40°C to 85°C. Applications include GPIO expansion for microcontrollers, push-button sensing, LED control, and keypad scanning. In stock at HL Electronics – request a quote for fast delivery.

TCA9555PWR - TI - main product image
Part No.:TCA9555PWR
Brand:TI
Date Code:
Stock:86,200
SPQ:0
MOQ:1+
Delivery Time:In Stock

Pricing (USD)

QuantityUnit Price
1+ $ 0.44
100+ $ 0.33
1000+ $ 0.29
2000+ $ 0.28

Technical Specifications

  • Part No.TCA9555PWR
  • Model TCA9555PWR
  • Category Integrated Circuits (ICs) > Interface > I/O Expanders
  • Manufacturer Texas Instruments
  • Packaging Tape & Reel (TR)
  • Part Status Active
  • Interface I²C, SMBus
  • Interrupt Output Yes
  • Features -
  • Output Type Push-Pull
  • Current - Output Source/Sink 10mA, 25mA
  • Clock Frequency 400 kHz
  • Voltage - Supply 1.65 V ~ 5.5 V
  • Operating Temperature -40°C ~ 85°C (TA)
  • Mounting Type Surface Mount
  • Supplier Device Package 24-TSSOP
  • Base Product Number TCA9555
  • RoHS ROHS3 Compliant
  • Standard Package 2000
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