3PEAK products are available at the authorized dealer Eitoku International.
The TPT29555-TS5R is a 16-bit GPIO expander IC that can extend the input/output ports of a microcontroller using an I²C interface. Even microcontrollers with limited I/O ports can easily add up to 16 digital inputs and outputs by using this product.
It can be controlled with a simple connection via the I²C bus, which simplifies circuit design and supports the connection of multiple devices. Additionally, it features an interrupt function that notifies the microcontroller of changes in input signals, making it suitable for systems that require real-time performance.
The power supply voltage ranges from 1.65V to 5.5V, allowing it to connect with various digital systems such as 1.8V, 3.3V, and 5V systems. Its low power consumption design makes it suitable for a wide range of applications, including industrial equipment, communication devices, PC peripherals, and embedded devices.
It adopts a compact TSSOP package, achieving high-function I/O expansion while minimizing board space.
Quantity: 372,000 units (as of March 6, 2026)
Location: Shipped from Hong Kong
Delivery time: 3-5 days (may vary depending on quantity and timing) FedEx, DHL
