{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"KSZ9021GQ","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"KSZ9021GQ","canonicalUrl":"https://icboms.com/microchip/KSZ9021GQ","factsUrl":"https://icboms.com/api/mcp/products/KSZ9021GQ","rawCanonicalId":null},"summary":{"shortDescription":"Microchip Technology KSZ9021GQ, Gigabit Ethernet transceiver, full-duplex, 8/8 driver/receiver count, 3.135V–3.465V supply, 0°C–70°C commercial temperature, 128-PQFP (14x20) surface-mount package.","salesMarkdown":"## Gigabit PHY in a 128-PQFP — what the 8/8 driver count means for your port density The KSZ9021GQ is a full-duplex Gigabit Ethernet transceiver from Microchip, offering 8 drivers and 8 receivers in a single 128-PQFP package. That 8/8 count means it can handle eight separate Gigabit Ethernet channels — enough for an 8-port switch or a multi-port media converter — without external PHY chips. ## Supply rail tolerance and temperature grade — the board-level constraints Supply range is 3.135V to 3.465V — a nominal 3.3V rail with ±5% tolerance. That is standard for most 3.3V logic systems, but if your board has a poorly regulated supply that dips below 3.135V during transient load, the PHY may drop link. The operating temperature range is 0°C to 70°C, which restricts this part to commercial indoor environments — no outdoor cabinets or engine-bay installations without active cooling. ## Active production — no EOL shadow, but verify date-code consistency Lifecycle status is Active, ROHS3 compliant.","metaTitle":"KSZ9021GQ Gigabit Ethernet Transceiver","metaDescription":"KSZ9021GQ — Microchip Gigabit Ethernet transceiver, full-duplex, 8/8 drivers/receivers, 3.135V–3.465V supply, 0°C–70°C, 128-PQFP. Active production.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Sensors & Transducers"],"specifications":{"Type":"Transceiver","Duplex":"Full","Package":"Tray","Protocol":"Gigabit Ethernet","Mounting Type":"Surface Mount","Package / Case":"128-BFQFP","lifecycle_stage":"eol_hot","Voltage - Supply":"3.135V ~ 3.465V","Operating Temperature":"0°C ~ 70°C","Supplier Device Package":"128-PQFP (14x20)","Number of Drivers/Receivers":"8/8"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$4.79","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$4.79000","currency":"USD"},{"qty":25,"price":"$4.35000","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/0ee3e3487827ca62eb38382ccacb3169.pdf","sourceUrl":null},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/KSZ9021GQ","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/KSZ9021GQ when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-17T20:07:28.981Z","lastPublished":"2026-07-17T20:07:28.981Z","indexable":true}}