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Interface

TPT29554A

I2C to 8-Bit GPIO Expander with Interrupt

  • Overview
  • Development Resources
  • Application
  • Ordering Detail

Overview

The TPT29554A is an 8-bit GPIO expander with interruption and weak pull-up resistors for I2C-bus applications. The power supplier voltage range is from 1.65 V to 5.5 V, allowing the TPT29554A to interconnect with 1.8-V microcontrollers.

The TPT29554A contains the register set of 8-bit Configuration, Input, Output, and Polarity Inversion registers. The open-drain interrupt (INT) output is changeable when any input state changes from its related register state and is used to indicate the system master that an input state has changed. INT can be connected to the interrupt input of a microcontroller. By sending an interrupt signal on this line, the remote I/O can inform the microcontroller if there is incoming data on its ports without having to communicate via the I2C bus. Thus, the TPT29554A can remain a simple slave device. The power-on reset sets the registers to their default values and initializes the device state machine.

All input/output pins have internal weak pull-up resistors to remove external components. Three hardware pins (A0, A1, A2) select the fixed I2C-bus address and allow up to eight devices to share the same I2C bus.

TPT29554A is available in the TSSOP16 package.


  • Status

    Production

  • Rating

    Industrial

  • Drivers Per Package

    2

  • Receivers Per Package

    8

  • VCC (Min) (V)

    1.65

  • VCC (Max) (V)

    5.5

  • Data Rate (Max) (kBPS)

    400

  • ICC (Max) (mA)

    0.03

  • ESD HBM (kV)

    4

  • IEC-61000-4-2 Contact (kV)

    /

  • Operating Temperature Range (℃)

    -40 to +105

  • Package

    TSSOP16

Development Resources

  • Documentation

Application

    • Servers/Storages

    • Routers (Telecom Switching Equipment)

    • Personal Computers


Ordering Detail

Order Part Number Buy Samples Rating Feature Status 1ku Price Release Date Package Lead time (week) MSL Packing MPQ CPQ
TPT29554A-TS3R
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Industrial Grade / Production / 2025-02-24 TSSOP16 24 MSL3 T&R 3000 15000

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