Comparison page

FUSB302 vs MCP23017

Side-by-side selection notes for specs, ecosystem readiness, known issues, and data confidence. This page is generated from structured component fields instead of a hand-written article.

FUSB302

Projects needing USB-C and I2C with a commonly available power part.

MCP23017

Projects needing IO expansion and 16 pins with a commonly available power part.

Specification Matrix

DimensionFUSB302 MCP23017

CategoryPowerPower

MakeronsemiMicrochip

CoreNot specifiedNot specified

ClockNot specifiedNot specified

WirelessNot specifiedNot specified

Voltage3.3V3.3V

LibrariesArduinoArduino, MicroPython

Price$0.80 - $2.50$1.00 - $3.50

Known Tradeoffs

FUSB302

Breakout boards may use different pin labels or regulator choices
Clone modules can differ from the original datasheet part

MCP23017

Breakout boards may use different pin labels or regulator choices
Clone modules can differ from the original datasheet part

Open Individual Model Pages

FUSB302

onsemi

USB Type-C controller used for USB-C configuration and power negotiation experiments.

China-madePower78% confidence

MCP23017

Microchip

16-bit I2C GPIO expander used when a microcontroller needs many extra digital pins.

China-madePower86% confidence