Reported by Hackaday on . Summarized and analyzed by XAIPART Editorial.
What happened
Littelfuse, which owns the Zilog name, has notified customers through PCN ZAC26-0074 that it is accepting final orders for the eZ80 and all other microcontroller lines it currently holds.[S1] Distributor Mouser has correspondingly marked eZ80 parts as "End of Life" on its website.[S1]
This follows the earlier discontinuation of the original Z80 and its peripherals, leaving the eZ80 as the last Z80-family device in commercial production until now.[S1] One reader commenter dates the Z80 itself as 1974–2024 and the eZ80 as 2001–2026.[S1]
Final orders for affected parts will be accepted through , with final deliveries scheduled to take place throughout 2027 as the MCU manufacturing line winds down.[S1] For commercial users still specifying the eZ80 or similar Zilog devices, this effectively ends new-silicon availability.[S1]
| Metric | Reported value | Source |
|---|---|---|
| PCN identifier | ZAC26-0074 | [S1] |
| Final-order cutoff date | 2026-12-21 | [S1] |
| Final-delivery window | Throughout 2027 | [S1] |
| Distributor status flag | End of Life (Mouser) | [S1] |
| Lines covered | eZ80 and all other Littelfuse-owned MCU lines | [S1] |
| eZ80 production span (per source comment) | 2001–2026 | [S1] |
| Original Z80 production span (per source comment) | 1974–2024 | [S1] |
Background timeline
- - Original Z80 enters production (date not disclosed by the source beyond the 1974–2024 lifespan cited in comments).
- - eZ80 successor family launches (year cited in source comments).
- - Original Z80 and its peripherals discontinued (per source comment dating the Z80 to 1974–2024).
- - Hackaday reports PCN ZAC26-0074 announcing final orders for eZ80 and other Littelfuse-owned MCU lines.
- - Final-order cutoff for eZ80 and remaining Littelfuse MCU lines.
- 2027 - Final deliveries to commercial customers as MCU line is wound down.
XAIPART take
Technical impact
Designs still targeting Z80-family silicon must now plan around a fixed-date obsolescence path: last buy by , with deliveries spread across 2027, so any re-spin or safety stock should be sized to that window. The eZ80's role as a drop-in modernized Z80 with on-chip peripherals made it attractive for legacy industrial and embedded systems; without new silicon, maintenance teams will need to consider FPGA soft-cores (open-source Z80 implementations exist, and the source notes TinyTapeout as a fab path) or alternative 8-/16-bit MCUs such as the Renesas RL78 that readers mention as ISA-adjacent. XAIPART analysis
Market impact
The PCN closes out the last commercially supported branch of the Zilog Z80 family, so distributor inventory will tighten fast as the 2026-12-21 cutoff approaches and unit pricing on the secondary market typically rises after EOL flags such as Mouser's. Buyers with field-deployed eZ80 designs should assume that after 2027 there will be no franchised-distribution channel for new units, only brokers and salvage stock, which raises both unit cost and counterfeit risk. XAIPART analysis
Action
Procurement should immediately pull a BOM report of every eZ80 and remaining Littelfuse/Zilog MCU line, confirm whether Mouser's EOL flag covers each MPN in use, and place a last-time-buy sized for the product's expected service life plus a safety buffer before . Engineering should in parallel evaluate an FPGA migration plan using an open-source Z80 core and verify second-source options such as the RabbitCore RCM2000 mentioned in source comments for designs that cannot be re-platformed. XAIPART analysis
XAIPART Forecast
XAIPART expects that, within 9 months of the 2026-12-21 cutoff (i.e., by Q3 2027), franchised-distributor on-hand stock of eZ80 MPNs at Mouser and peer catalogs will be reported at zero SKUs or shown only as obsolete with no buy button, because Littelfuse's stated deliveries are limited to orders placed before the cutoff and are scheduled throughout 2027. This forecast is wrong if Mouser still lists any eZ80 SKU as orderable past 2027-09-30. 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. Unconfirmed or single-source items: the specific MPNs and per-part pricing of eZ80 variants affected, whether Littelfuse has issued any companion PCNs beyond ZAC26-0074, and the exact 2027 delivery cadence are not disclosed.
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
| 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。
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
| Dimension | FRED series ID | Unit | Lag | As of |
|---|---|---|---|---|
| Input cost | PCOPPUSDM, PALUMUSDM, PNICKUSDM | USD/mt | 52 d | |
| Supply/demand | PCU334413334413, IPG3344S | index(1982=100) / index(2017=100) | 46 d | |
| FX & energy | DEXCHUS, DCOILBRENTEU, DHHNGSP | rate / USD/bbl / USD/MMBtu | 5 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
| Source fetched | Hackaday · hackaday.com · 5,994 chars |
|---|---|
| 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) · 7,447 tokens · 27.5s · run completed |
| Gate | verdict hold · 6/6 applicable checks passed · spec v2.9 · C10 ratio 0.012311 · C10 rounds 0 |
| Time contract | 9 <time datetime> values in this brief — 0 violations (+08:00 or date-only) |
上述每一列皆由流程產生，並非人工撰寫。
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