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Littelfuse 全面退出 MCU 业务：Zilog eZ80 及剩余产品线进入 EOL

Littelfuse 已对所有剩余的 Zilog 微控制器系列发布停产通知，最终订单截止日期为 12 月 21 日，发货将持续至 2027 年 6 月。

已发布 已更新 4 分钟阅读 ✓ AI 就绪 分享

TL;DR——三句话

  • Littelfuse Integrated Circuits Division has issued an end-of-life notice for every remaining Zilog MCU family, completing its MCU-market exit (S1).
  • Final orders are due by December 21, 2026, with last-time-buy shipments scheduled through June 2027 (S1).
  • The notice warns that full fulfillment cannot be guaranteed due to material-supply or factory-capacity constraints (S1).

摘自 key_takeaways （真实字段，最多 3 条）。事实与分析分别标注。

Littelfuse 全面退出 MCU 业务：Zilog eZ80 及剩余产品线进入 EOL — New Products news briefEditorial cover for a New Products brief. Chip motif; headline "Littelfuse 全面退出 MCU 业务：Zilog eZ80 及剩余产品线进入 EOL". No reported key numbers on this brief, so no number strip is drawn. 1 cited source. Static cover (no animation).NEW PRODUCTS · NEWS BRIEFLittelfuse 全面退出 MCU 业务：Zilog eZ80及剩余产品线进入 EOLXAIPART
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.

您从 AI 回答跳转而来——这是可验证的原文

AI 摘要可能遗漏了其结论的依据。原始预测、受影响料号及所有引用均在本页，均可追溯至来源。

XAIPART 预测

本篇简报包含可证伪的预测。

跳转至完整预测及其证伪规则 ›
受影响的料号

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Reported by Hackster.io News on . Summarized and analyzed by XAIPART Editorial.

What happened

Littelfuse's Integrated Circuits Division has issued an end-of-life notification covering all remaining active microcontroller (MCU) product families, marking a full exit from the MCU market roughly two years after the company discontinued the classic Zilog Z80.S1

The notice was distributed to customers under Littelfuse's IXYS brand and gives buyers until to place final orders, with last-time-buy shipments running through June 2027.S1

The same notice warns that "supply is limited" and that full fulfillment cannot be guaranteed because of potential material-supply or factory-capacity constraints.S1

The earlier April 2024 Z84C00 and Z180 discontinuation left the embedded eZ80 line as the last surviving Zilog MCU family; the new notice takes out that residual range as well. Littelfuse has not disclosed any reason for the exit, and the article points readers to a free and open-source Z80 reimplementation for continued software-side support.S1

MetricReported valueSource
Final order cutoffDecember 21, 2026S1
Last-shipment windowThrough June 2027S1
Previous Z84C00 / Z180 EOLApril 2024S1
Reason for exitNot disclosedS1
Full fulfillment guaranteeNot guaranteedS1

Background timeline

  1. - Zilog Z80 launched, designed by Federico Faggin and Masatoshi Shima to compete with the Intel 8080 for embedded control and home computing. [S1]
  2. - Littelfuse issues EOL for the Z84C00 family (modern DIP-equivalent Z80) and the Z180 core line; the eZ80 family remains active. [S1]
  3. - Littelfuse / IXYS announces EOL for all remaining MCU families, including eZ80, with orders accepted through and shipments through June 2027; no reason disclosed. [S1]

XAIPART take

Technical impact

For designs still riding on the eZ80 core, the 8-bit pipeline, Z80 instruction set and classic peripheral mix remain attractive for low-cost deterministic control, but the supply-clock just shortened to roughly eight months of order window plus an eight-month tail-ship window. XAIPART analysis Engineers maintaining legacy Z80 / eZ80 firmware should now treat the platform as a migration target rather than a green-field choice, since silicon will not be replenished after June 2027.

Market impact

Littelfuse's exit removes one of the few Western-owned 8-bit MCU vendors still shipping a Z80-architecture part, which tightens the second-source picture for buyers who specifically needed a non-Asian, non-ARM 8-bit option. XAIPART analysis Because the source explicitly states that "full fulfillment cannot be guaranteed," allocation risk is real between now and June 2027: spot pricing on the remaining eZ80, Z84C00 and Z180 inventory is likely to drift upward as distributors digest a fixed, non-replenishable pool.

Action

Procurement teams should pull a BOM cut for any active Zilog line items and place last-time-buy orders before , sized to cover field-life plus an explicit safety stock buffer to ride out allocation through June 2027. XAIPART analysis Design teams should concurrently evaluate the open-source Z80 reimplementation noted in the source for new designs where a soft core is acceptable, and shortlist pin-compatible modern 8-bit MCUs as a hard-silicon fallback.

XAIPART Forecast

XAIPART expects that if allocated eZ80 lead times stretch beyond 26 weeks, or published distributor pricing on Z84C00 / Z180 / eZ80 rises more than 30% versus pre-EOL list by the end of Q2 2027, this forecast is wrong; XAIPART's call is that lead times for residual Zilog inventory will exceed 26 weeks before the June 2027 cutoff, given the unfunded-fulfillment language in Littelfuse's notice. 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. Uncertainty: the reason for Littelfuse's exit is not disclosed in the source; the warning that full fulfillment is not guaranteed is a single-source customer notice; and Littelfuse has not confirmed whether any wafer-bank or last-time-buy extension will be offered.

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

Dated developments, extracted from this page's timeline (curated milestones = hollow markers).
Timeline of dated developmentsDated entries: 1976-07-01 1976 - Zilog Z80 launched, designe…; 2024-04-01 2024 - Littelfuse issues EOL for t…; 2026-10-07 - Littelfuse / IXYS announces EOL ….1976-07-011976 - Zilog Z80 launched, designe…2024-04-012024 - Littelfuse issues EOL for t…2026-10-07- Littelfuse / IXYS announces EOL …

替代料与生命周期

已收录的替代料——仅为目录范围，不代表市场排名
料号关系生命周期依据
— 暂无收录替代料 待补充数据 — 需 match_type 后才可显示任何前代标签

“前代”和“替代”标签仅来自已记录的匹配类型、生命周期状态或来源文本。没有记录匹配时，不显示任何标签。我们自己的商品列表不构成市场参考。

关注要点

可证伪预测——阈值、时间窗口和当前状态。被推翻的预测仍保留可见。
论断阈值发布方状态
XAIPART expects that if allocated eZ80 lead times stretch beyond 26 weeks, or published distributor pricing on Z84C00 / Z180 / eZ80 rises more than 30% versus pre-EOL list by the end of Q2 2027, this forecast is wrong... allocated eZ80 lead times stretch beyond 26 weeks, or published distributor pricing on Z84C00 / Z180 / eZ80 rises more than 30% versus pre-EOL list by the end of Q2 2027 Q2 2027 Pending

被证明错误的预测仍保留可见并加以标注。我们不会删除它们。

受影响的料号

目录中无匹配。 此事件未映射到 XAIPART 当前上架的任何料号。我们不推断匹配，也不显示占位列表。

各维度成本压力

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 0.4541, neutral. Composite index -7.6, band neutral.0投入成本no reading供需z −1.4711 · notable46 d汇率与能源z +0.4541 · neutral6 dcomposite −7.6 · neutral−100 · −40 · −15 · 0 · +15 · +40 · +100
Underlying values — copyable for verification.
DimensionFRED series IDUnitLagAs of
投入成本PCOPPUSDM, PALUMUSDM, PNICKUSDMUSD/mt96 d
供需PCU334413334413, IPG3344Sindex(1982=100) / index(2017=100)46 d
汇率与能源DEXCHUS, DCOILBRENTEU, DHHNGSPrate / USD/bbl / USD/MMBtu6 d

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

本文如何生成

过程证据——抓取、来源可靠性检查、模型与校验
本简报的审计记录
Source fetched Hackster.io News · www.hackster.io · 2,412 chars · fetch status success
Source sanity (S1) ok — passed before any model call (no s1_ block recorded)
Model / prompt MiniMax-M3 · prompt Blog Agent - News Summary (v2.8-final) · 6,276 tokens · 23.4s · run completed
Gate verdict pass · 6/6 applicable checks passed · spec v2.9 · C10 ratio 0.019174 · C10 rounds 0
Time contract 7 <time datetime> values in this brief — 0 violations (+08:00 or date-only)

上述每一行均由流水线生成，而非人工撰写。

编辑评分

确定性校验结果——纯 PHP 实现，判定过程不涉及模型
校验评分明细 6 项适用检查， 6项通过： 100 %. No hold items or mandatory failures. Gate spec: v2.9 (S0 + S1 + C1–C20) · Source affinity (C20): 0.6471. 适用检查已通过 6 / 6 = 100% · 判定： pass No hold items or mandatory failures Gate spec: v2.9 (S0 + S1 + C1–C20) · Source affinity (C20): 0.6471 是否发布由校验决定。独立审计评分仅供参考。

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来源

  1. Two Years After Discontinuing the Classic Zilog Z80, Littelfuse Kills Off Its Remaining MCUs — https://www.hackster.io/news/two-years-after-discontinuing-the-classic-zilog-z80-littelfuse-kills-off-its-remaining-mcus-0491ad475ca8 · rss · 访问于

事实标注为 S1/S2，并可追溯至所链接的来源。标注为 分析 的内容是 XAIPART 自身的推理，与报道的事实分开呈现。来源链接会被访问核实，而非 nofollow ——署名是有意为之。