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TCA9554 Datasheet Low Voltage 8-bit I2c And Smbus Low-power I/o Expander

Manufacturer: Texas Instruments

Overview: Product Folder Order Now Technical Documents Tools & Software Support & munity TCA9554 SCPS233E – MARCH 2012 – REVISED FEBRUARY 2017 TCA9554 Low Voltage 8-Bit I2C and SMBus Low-Power I/O Expander With Interrupt Output.

General Description

The TCA9554 is a 16-pin device that provides 8 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 device supports both 100-kHz (Standard-mode) and 400-kHz (Fast-mode) clock frequencies.

Key Features

  • 1 I2C to Parallel Port Expander.
  • Open-Drain Active-Low Interrupt Output.
  • Operating Power-Supply Voltage Range of 1.65 V to 5.5 V.
  • 5-V Tolerant I/O Ports.
  • 400-kHz Fast I2C Bus.
  • Three Hardware Address Pins Allow up to Eight Devices on the I2C/SMBus.
  • Input and Output Configuration Register.
  • Polarity Inversion Register.
  • Internal Power-On Reset.
  • Low Standby Current Consumption.
  • Power-Up With All Channel.

More Datasheets from Texas Instruments

Part Number Description
TCA9554A Low Voltage 8-Bit I2C and SMBus Low-Power I/O Expander
TCA9555 Low-Voltage 16-Bit I2C and SMBus I/O Expander
TCA9509 Level-Translating I2C and SMBUS Bus Repeater
TCA9511A Hot Swappable I2C Bus and SMBus Buffer
TCA9517 Level-Shifting I2C Bus Repeater
TCA9517A Level-Shifting I2C Bus Repeater
TCA9534 Low Voltage 8-Bit I2C and SMBUS Low-Power I/O Expander
TCA9534A Low Voltage 8-Bit I2C and SMBUS Low-Power I/O Expander
TCA9535 Low Voltage 16-Bit I2C and SMBUS Low-Power I/O Expander
TCA9538 Low Voltage 8-Bit I2C and SMBus Low-Power I/O Expander

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