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Littelfuse exits MCUs entirely: Zilog eZ80 and remaining lines head to EOL

Littelfuse has issued an end-of-life notice for all remaining Zilog microcontroller families, with final orders by December 21 and shipments through June 2027.

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TL;DR — 세 문장

  • 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).

출처: key_takeaways (실제 필드, 최대 3개 항목). 사실과 분석은 별도로 표시됩니다.

Littelfuse exits MCUs entirely: Zilog eZ80 and remaining lines head to EOL — New Products news briefEditorial cover for a New Products brief. Chip motif; headline "Littelfuse exits MCUs entirely: Zilog eZ80 and remaining lines head to 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 exits MCUs entirely: ZilogeZ80 and remaining lines head to 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.

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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 …

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주장임계값작성:상태
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

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차원별 비용 압력

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.0Input costno readingSupply/demandz −1.4711 · notable46 dFX & energyz +0.4541 · neutral6 dcomposite −7.6 · neutral−100 · −40 · −15 · 0 · +15 · +40 · +100
Underlying values — copyable for verification.
DimensionFRED series IDUnitLagAs of
Input costPCOPPUSDM, PALUMUSDM, PNICKUSDMUSD/mt96 d
Supply/demandPCU334413334413, IPG3344Sindex(1982=100) / index(2017=100)46 d
FX & energyDEXCHUS, 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.

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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)

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편집 점수

결정론적 게이트 결과 — 순수 PHP로 판정에 모델이 관여하지 않음
게이트 점수 분석 6 적용 가능한 검사, 6항목 통과: 100 %. No hold items or mandatory failures. Gate spec: v2.9 (S0 + S1 + C1–C20) · Source affinity (C20): 0.6471. 적용 가능한 검사 통과 6 / 6 = 100% · 판정: pass No hold items or mandatory failures Gate spec: v2.9 (S0 + S1 + C1–C20) · Source affinity (C20): 0.6471 게시 여부는 게이트가 결정합니다. 독립 감사 점수는 권고용일 뿐입니다.

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출처

  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 · 조회일

사실은 S1/S2로 표시되며 링크된 출처로 추적됩니다. 다음 라벨이 붙은 구절은 분석 는 보도된 사실과 분리되어 유지되는 XAIPART의 자체 추론입니다. 출처 링크는 추정하지 않고 실제로 확인합니다. nofollow — 출처 표기는 의도적입니다.