What are the differences between GD32F105ZCT6 and STM32F105ZCT6?
Documented differences: Max clock 108MHz vs 72MHz. Review each against your application before committing.
STM32F105ZCT6 — graded alternatives
st1 verified match, sorted by compatibility grade and evidence strength. Differences are listed before any compatibility claim. Data source: live tenant catalog. Data verified: 2026-07-13T00:00:00.000Z
The closest documented alternative to STM32F105ZCT6 is GigaDevice GD32F105ZCT6, graded P2P (pin- and software-compatible candidate, high confidence). Key difference to review first: Max clock 108MHz vs 72MHz. Every match is an engineering-review candidate, not an unqualified drop-in claim.
Grading methodology: how grades and evidence classes work.
Known differences: GD32F105ZCT6 vs STM32F105ZCT6
- Max clock 108MHz vs 72MHz
Differences for the other candidates are listed per match below.
SIDE-BY-SIDE PARAMETERS — CROSS-BRAND, STM32F105ZCT6
| SPEC | GD32F105ZCT6 GigaDevice · P2P |
|---|---|
| Core | Cortex®-M3 |
| Speed (MHz) | 108 |
| Flash | 256K |
| SRAM | 96K |
| Package | LQFP144 |
| Temp Range | 40℃~85℃ |
Manufacturer-sourced parameters. The original st part's figures are on its own datasheet; differences that matter are itemized per match above.
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Engineering questions about this cross-reference
Is GD32F105ZCT6 a drop-in replacement for STM32F105ZCT6?
GD32F105ZCT6 is a P2P-graded engineering-review candidate (pin- and software-compatible candidate). At minimum, review: Max clock 108MHz vs 72MHz. Production use requires validation on your board.
What is the difference between P2P, PIN and FUNC grades?
P2P is a documented drop-in candidate, PIN keeps the package and pinout but needs firmware work, and FUNC is functionally similar but may require a board or BOM change.