TPT29554A

I²C to 8-Bit GPIO Expander with Interrupt

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概述
开发资源
应用
订购明细

概述

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

开发资源

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- Datasheet_TPT29554A
  
  数据手册
  
  英文
  
  03/26/2025
  
  I²C to 8-Bit GPIO Expander with Interrupt
- Introduction to Latch-up and the Preventive Measures
  
  技术文章
  
  英文
  
  01/19/2024
- Application Tips on ESD-EOS
  
  技术文章
  
  英文
  
  01/19/2024
- 思瑞浦模拟产品选型册
  
  选型手册
  
  中文
  
  01/19/2024