{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SST39VF6401B-70-4C-EKE","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"SST39VF6401B-70-4C-EKE","canonicalUrl":"https://icboms.com/microchip/SST39VF6401B-70-4C-EKE","factsUrl":"https://icboms.com/api/mcp/products/SST39VF6401B-70-4C-EKE","rawCanonicalId":null},"summary":{"shortDescription":"Microchip Technology SST39 MPF™ series, 64Mbit Parallel NOR Flash, 70ns Access Time, 2.7V-3.6V, 48-TFSOP (18.40mm Width), Tray.","salesMarkdown":"## 64Mbit parallel NOR flash — 70 ns access, 3.3 V single-rail The SST39VF6401B-70-4C-EKE is a 64 Mbit parallel NOR flash from Microchip's SST39 MPF™ family, organized as 4M x 16 bits with a 70 ns access time. The parallel interface means the entire memory array is visible on the address and data bus — no SPI serialization latency, so the CPU can execute code directly (XIP) without copying to RAM first. ## Package and board-fit — 48-TSOP footprint Housed in a 48-TFSOP package (0.724\", 18.40 mm width) with the supplier device package listed as 48-TSOP — the standard thin small-outline package footprint for parallel NOR flash in this density class. Surface-mount assembly on a standard JEDEC TSOP-48 land pattern; the 0.50 mm pin pitch requires controlled solder-paste deposition but is well within the capability of any production SMT line. ## Temperature grade and operating environment For an industrial panel or telecom closet that stays within this range, the part operates within its guaranteed window with no derating needed. ## Programming throughput and firmware update window Word and page write cycle time is 10 µs — fast enough that a full 64 Mbit firmware image can be programmed in well under a second over the parallel bus, assuming the host controller drives the write strobe at the rated cycle time. The 70 ns access time means the read cycle matches the bus timing of most ARM and x86 embedded processors without inserting wait states at moderate clock speeds. ## Lifecycle and sourcing posture RoHS3 compliant, so it ships into EU and global markets without a RoHS exemption expiry concern.","metaTitle":"Microchip SST39VF6401B-70-4C-EKE 64Mbit Parallel NOR Flash","metaDescription":"Microchip SST39VF6401B-70-4C-EKE 64Mbit parallel NOR flash, 70ns access, 2.7-3.6V, 48-TSOP. Active production. RoHS3. Quoted to order against RFQ.","metaKeywords":null},"attributes":{"series":"SST39 MPF™","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Series":"SST39 MPF™","Package":"Tray","Technology":"FLASH","Access Time":"70 ns","Memory Size":"64Mbit","Memory Type":"Non-Volatile","Memory Format":"FLASH","Mounting Type":"Surface Mount","Package / Case":"48-TFSOP (0.724\\\", 18.40mm Width)","lifecycle_stage":"eol_hot","Memory Interface":"Parallel","Voltage - Supply":"2.7V ~ 3.6V","Memory Organization":"4M x 16","Operating Temperature":"0°C ~ 70°C (TA)","Supplier Device Package":"48-TSOP","Write Cycle Time - Word, Page":"10µs"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$8.6","priceTiers":[{"qty":1,"price":"$8.60000","currency":"USD"},{"qty":25,"price":"$8.27880","currency":"USD"},{"qty":100,"price":"$7.96060","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/5fa8d40457eef2046f46ff6c88d1aa7c.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/SST39VF6401B-70-4C-EKE/alternatives.json"},"ai":{"faq":[{"question":"What is the closest functional second-source for SST39VF6401B-70-4C-EKE?","answer":"The 23K640-I/SN is a 64 Kbit SRAM with a serial SPI interface — it is not a functional replacement for a 64 Mbit parallel NOR flash."},{"question":"What compliance documentation does Microchip provide for SST39VF6401B-70-4C-EKE?","answer":"The part is ROHS3 Compliant. Microchip's standard compliance package includes the RoHS certificate of compliance and material declaration; REACH and conflict-minerals reports are available through their documentation portal."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/SST39VF6401B-70-4C-EKE","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/SST39VF6401B-70-4C-EKE when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:49:49.435Z","lastPublished":"2026-08-11T15:49:49.435Z","indexable":true}}