Comparison page
74HC595 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.
74HC595
Projects needing IO expansion and Shift register with a commonly available power part.
MCP23017
Projects needing IO expansion and 16 pins with a commonly available power part.
Specification Matrix
Known Tradeoffs
74HC595
- 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