STM32C5: 144 MHz Cortex-M33 MCU cuts BOM cost with internal RC oscillator

STMicroelectronics detailed the STM32C5, a 144 MHz Cortex-M33 MCU with 1 MB flash and sub-80 µA/MHz dynamic draw, aiming at cost-sensitive low-power designs.

已發布 已更新 3 分鐘閱讀 ✓ 支援 AI 分享

TL;DR — 三句話摘要

  • The STM32C5 runs a 144 MHz Arm Cortex-M33 with 1 MB flash and 256 kB RAM, under 80 µA/MHz dynamic power, in packages down to 3 × 3 mm (S1).
  • A 1%-calibrated RC oscillator holds tolerance from −20 to 105°C, letting many designs drop the external crystal and cut BOM cost (S1).
  • Peripherals include 10/100 Ethernet, two FD-CAN ports, USB 2.0, octal SPI with HyperFlash/HyperRAM support, I3C, and ADCs at up to 4.5 MSPS interleaved (S1).

取自 key_takeaways （實際欄位，最多 3 筆）。事實與分析分別標示。

STM32C5: 144 MHz Cortex-M33 MCU cuts BOM cost with internal RC oscillatorEditorial cover for a component sourcing brief. Power motif; headline "STM32C5: 144 MHz Cortex-M33 MCU cuts BOM cost with internal RC oscillator". No reported key numbers on this brief, so no number strip is drawn. 1 cited source. Static cover (no animation).STM32C5: 144 MHz Cortex-M33 MCU cuts BOMcost with internal RC oscillatorXAIPART
Cover image generated from data already shown on this page: the category motif, the headline, and reported key numbers. No decorative illustration; no third-party image.

您來自 AI 回答 — 這是可驗證的原始內容

AI 摘要可能遺漏了其主張的依據。原始預測、受影響零件及每一項引用皆在本頁，且均可追溯至其來源。

XAIPART 預測

本簡報包含可證偽的預測。

跳至完整預測及其證偽規則 ›
受影響零件

此報導無目錄相符項目 — 寧可不顯示，也不推斷相符。

查看判定方式 ›
正在尋找零件？送出詢價 → RFQ

Reported by ChipDispatch on 2026-10-02. Summarized and analyzed by XAIPART Editorial.

What happened

At Embedded World North America 2026, STMicroelectronics detailed the STM32C5 microcontroller, a 144-MHz Arm Cortex-M33 part with dynamic power consumption under 80 µA/MHz.S1 The single die integrates 1 MB of flash, 256 kB of RAM, 64 kB of data flash and 4.5 kB of one-time programmable memory.S1 Packages go down to 3 × 3 mm.S1

The part targets cost-sensitive, low-power designs that still need math throughput: a floating-point unit works alongside a CORDIC accelerator for trigonometric functions.S1 ST also integrated a 1%-calibrated RC oscillator that holds tolerance from −20 to 105°C, which trims bill-of-materials cost by removing an external crystal in many applications.S1

Connectivity includes 10/100 Ethernet, two FD-CAN interfaces, USB 2.0 host/device, octal SPI compatible with HyperFlash and HyperRAM, one I3C port and two I2C ports.S1 The analog side offers three 12-bit ADCs with up to 30 channels at 2.25 MSPS, or 4.5 MSPS in dual interleaved mode, plus one 12-bit DAC and a comparator.S1

ST backs the chip with an STM32C5 Nucleo board carrying Arduino Uno V3 and ST Morpho headers, and the device works within the STM32Cube IDE and ecosystem.S1

Key numbers
MetricReported value
CoreArm Cortex-M33 at 144 MHz S1
Dynamic powerunder 80 µA/MHz S1
Flash / RAM1 MB / 256 kB (plus 64 kB data flash, 4.5 kB OTP) S1
Smallest package3 × 3 mm S1
ADC rate2.25 MSPS (4.5 MSPS dual interleaved) S1
Pricing and availability dateNot disclosed

Background timeline

  1. No prior milestones disclosed by the source.

Technical impact

The STM32C5 positions itself between entry-level Cortex-M0/M0+ parts and higher-end Cortex-M4/M33 lines, with hardware floating point and CORDIC unusual at this cost tier. The crystal-less RC oscillator claim (1% over −20 to 105°C) means designers of cost-sensitive boards can drop one component per node, provided their timing budget tolerates 1% rather than crystal-grade ppm accuracy. The 3 × 3 mm package also enables dense sensor-node layouts.

Market impact

For sourcing teams, the integrated RC oscillator and octal SPI memory interface can shrink the BOM and reduce dependent line items such as external crystals and memory chips. The source gave no pricing or availability dates, so any volume negotiation should start by requesting samples and firm lead times from ST and its distribution channel. FD-CAN and 10/100 Ethernet on a low-power Cortex-M33 may also make the STM32C5 a candidate for industrial node consolidation.

Action

Engineers evaluating this part should order the STM32C5 Nucleo board and prototype within STM32Cube, per the source's ecosystem description. Compare the RC-oscillator tolerance against your timing requirements early, and verify which package variants are actually in production before locking a layout at 3 × 3 mm.

XAIPART Forecast

Within 9 months (by 2026-07-31 would be past; we state: by 2027-07-31), STMicroelectronics's STM32C5 Nucleo boards and at least one production package variant will be listed as in-stock items at major distributors in quantities above 1 k units; if distributor stock of the STM32C5 does not reach that threshold by 2027-07-31, this forecast is wrong. XAIPART analysis

Facts are as reported by the cited source. The design-in, sourcing and forward-looking statements above are XAIPART's analysis, not the source's claims. Pricing, exact package variant list, production status and availability dates were not disclosed by the source, and this is a single-source report.

Corrections: none at publication. This brief will be updated with a timestamp if the source corrects its report.

替代品與生命週期

已建檔的替代品——目錄範圍，並非市場排名
零件關係生命週期依據
— 檔案中無替代品 需要資料 — 需要 match_type 在任何前代標籤出現之前

「前代」與「替代」標籤僅來自已記錄的相符類型、生命週期狀態或來源文字。未記錄相符項目時，不顯示任何標籤。我們自家的刊登內容不構成市場參考。

值得關注

可證偽預測 — 門檻、時間窗與目前狀態。已證偽的預測仍保留可見。
主張門檻作者狀態
Within 9 months (by 2026-07-31 would be past; we state: by 2027-07-31), STMicroelectronics's STM32C5 Nucleo boards and at least one production package variant will be listed as in-stock items at major distributors in ... distributor stock of the STM32C5 does not reach that threshold by 2027-07-31 Pending

事後證明錯誤的預測會保留可見並加以標記。我們不會刪除。

受影響零件

無目錄相符項目。 此消息未對應到 XAIPART 目前上架的任何零件。我們不會推測相符項目，也不會顯示佔位清單。

各維度成本壓力

Source: FRED · Generated · reference output z and composite are algorithm outputs, not a fetch snapshot

Cost pressure by dimension — composite stateDiverging bars for three dimensions around a zero midpoint. Input Cost has no reading; Supply Demand z -1.4711, notable; Fx Energy z 0.1243, neutral. Composite index -10.1, band neutral.0Input costno readingSupply/demandz −1.4711 · notable46 dFX & energyz +0.1243 · neutral5 dcomposite −10.1 · neutral−100 · −40 · −15 · 0 · +15 · +40 · +100
Underlying values — copyable for verification.
DimensionFRED series IDUnitLagAs of
Input costPCOPPUSDM, PALUMUSDM, PNICKUSDMUSD/mt52 d
Supply/demandPCU334413334413, IPG3344Sindex(1982=100) / index(2017=100)46 d
FX & energyDEXCHUS, DCOILBRENTEU, DHHNGSPrate / USD/bbl / USD/MMBtu5 d

No free authoritative interface for: gold · silver · rare earth · polysilicon · lithium carbonate · market share — listed rather than approximated.

本內容的產生方式

流程證據 — 擷取、來源合理性、模型與閘門
此簡報的稽核軌跡
Source fetched ChipDispatch · chipdispatch.com · 1,425 chars
Source sanity (S1) ok — passed before any model call (no s1_ block recorded)
Model / prompt glm-5.3-flash · prompt Blog Agent - News Summary (v2.8-final) · 6,060 tokens · 34.5s · run completed
Gate verdict hold · 5/6 applicable checks passed · spec v2.9 · C10 ratio 0.100554 · C10 rounds 0

上述每一列皆由流程產生，並非人工撰寫。

編輯評分

確定性閘門結果 — 純 PHP，判定過程無模型參與
閘門評分明細 6 項適用檢查， 5通過： 83 百分比. Hold items: C13 (falsifiable forecast), C15 (four views + no restating), C16 (forecast substance), C19 (factor consistency) — sent to human review. Gate spec: v2.9 (S0 + S1 + C1–C20) · Source affinity (C20): 0.8247. 適用檢查已通過 5 / 6 = 83% · 判定： hold Hold items: C13 (falsifiable forecast), C15 (four views + no restating), C16 (forecast substance), C19 (factor consistency) — sent to human review Gate spec: v2.9 (S0 + S1 + C1–C20) · Source affinity (C20): 0.8247 是否發布由審核關卡決定。獨立稽核分數僅供參考。

相關報導

發現錯誤？ 告訴我們哪裡有誤 ——更正會與原文一同發布並記錄。我們不會默默修改文章。

留言

成為第一個留言的人。

來源

  1. STMicroelectronics details STM32C5 144 MHz Cortex-M33 MCU at Embedded World NA 2026 — https://chipdispatch.com/articles/embedded-world-na-2026-st-s-stm32c5-panther-lake-modules-and-rugged-tsn-boards-526f758b · rss · 存取於

事實標記為 S1/S2，並可追溯至連結來源。標示為 分析 是 XAIPART 自身的推理，與報導事實分開保留。來源連結會被追蹤，而非 nofollow ——署名為刻意為之。