TPT29508

I²C to 8-bit GPIO Expander with Voltage-level Translation

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概述
开发资源
应用
订购明细

概述

The TPT29508 is an 8-bit GPIO expander with interruption for I²C-bus applications. It operates from a supply voltage range of 1.65 V to 5.5 V on both the I²C-bus side (V_CCI) and the P-port side (V_CCP), which allows bidirectional voltage-level translation and GPIO expansion between 1.8-V, 2.5-V, 3.3-V, and 5-V I²C-bus and P-ports.

The TPT29508 features a set of 8-bit Configuration, Input, Output, and Polarity Inversion registers. The opendrain interrupt (INT) output is changeable when any input state changes from its related register state. INT can be connected to the interrupt input of a microcontroller. A power-on reset initializes all registers to their default values and resets the device state machine. The TPT29508 also has a hardware RESET pin to reset the device to its default state.

All input/output pins do not have internal pull-up resistors, which helps reduce power consumption when communicating with external I/Os. One hardware pin (ADDR) selects the I²C-bus address and allows up to two devices to share the same I²C-bus.

The TPT29508 is available in the QFN1.8X2.6-16 package, and is characterized from −40°C to +105°C.

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)

0.033
ESD HBM (kV)

4
IEC-61000-4-2 Contact (kV)

/
Operating Temperature Range (℃)

-40 to +125
Package

QFN1.8X2.6-16

开发资源

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- 思瑞浦模拟产品选型册
  
  选型手册
  
  中文
  
  03/06/2026
- Datasheet_TPT29508
  
  数据手册
  
  英文
  
  04/20/2026
  
  I²C to 8-bit GPIO Expander with Voltage-level Translation
- Introduction to Latch-up and the Preventive Measures
  
  技术文章
  
  英文
  
  01/19/2024
- Introduction to ESD Performance of a Silicon Chip
  
  技术文章
  
  英文
  
  01/19/2024
- Application Tips on ESD-EOS
  
  技术文章
  
  英文
  
  01/19/2024