3 verified matches, 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 STM32F103CCT6 is Artery AT32F403ACCT7, graded PIN (package- and pinout-compatible candidate that needs firmware work, high confidence). Key difference to review first: Max clock 240MHz vs 72MHz (review peripheral clock configuration). 2 further graded candidates listed below. Every match is an engineering-review candidate, not an unqualified drop-in claim.
HK claims hardware+software compatibility; sample-test ADC, clock and low-power behavior
"A" suffix is HK's revision, same pinout as the non-suffixed part
EVIDENCE
E2 · PENDINGHK positions HK32F0xx/F103 as same-part-number STM32 replacements; grade upgrades to P2P once the official compatibility document is archived · checked 2026-07-13T00:00:00.000Z
Part-number suffix matches ST exactly · checked 2026-07-13T00:00:00.000Z
Confidence stays medium until the official document is archived on file.
What are the differences between AT32F403ACCT7 and STM32F103CCT6?
Documented differences: Max clock 240MHz vs 72MHz (review peripheral clock configuration); Firmware port required: most registers compatible but not all; official migration guide + device pack provided; Operating temperature -40~105°C (T7) wider than ST's -40~85°C (T6). Review each against your application before committing.
Is AT32F403ACCT7 a drop-in replacement for STM32F103CCT6?
AT32F403ACCT7 is a PIN-graded engineering-review candidate (package- and pinout-compatible candidate that needs firmware work). At minimum, review: Max clock 240MHz vs 72MHz (review peripheral clock configuration). 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.
