{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"M93C46-WMN6TP","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"M93C46-WMN6TP","canonicalUrl":"https://icboms.com/stmicroelectronics/M93C46-WMN6TP","factsUrl":"https://icboms.com/api/mcp/products/M93C46-WMN6TP","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics M93C46-WMN6TP serial EEPROM, 1Kbit, Microwire interface, 2 MHz clock, 2.5V to 5.5V supply, 8-SOIC package, Tape & Reel.","salesMarkdown":"## 1-Kbit serial EEPROM with Microwire — BOM-fit note The M93C46-WMN6TP is a 1-Kbit serial EEPROM from STMicroelectronics, organized as 128 x 8 bits or 64 x 16 bits, selectable via the ORG pin. It communicates over a standard Microwire bus at up to 2 MHz, making it a drop-in replacement for legacy 93C46 footprints in industrial and embedded designs. Supply voltage spans 2.5 V to 5.5 V, so the same part works on a 3.3 V microcontroller rail or a 5 V legacy bus without a level translator on the supply line. Operating temperature range is -40°C to +85°C — industrial grade, suited for outdoor telecom cabinets, motor-drive control boards, and automotive cabin-zone modules where the ambient stays below the +85°C ceiling. ## Package and supply-chain reality Housed in the industry-standard 8-SOIC (3.90 mm width) footprint, the M93C46-WMN6TP is offered on Tape & Reel (TR) and Cut Tape (CT) — the reel option suits automated pick-and-place for volume builds, while cut tape works for prototyping or small-batch rework. Lifecycle status is Active with full RoHS3 compliance (no exemptions expiring). No stock-holding claim — each lot is verified for traceability and RoHS compliance before dispatch. ## Write timing and interface — firmware planning note Write cycle time is 5 ms for a word or page — budget this into the firmware write routine. A single-byte write followed by a 5 ms polling delay is typical; a page write (up to 16 bytes in the 128 x 8 organization) still completes in the same 5 ms window, so batching writes improves throughput. The Microwire interface uses a dedicated Chip Select (CS), Serial Clock (SK), Data In (DI), and Data Out (DO) — four wires, no address/data multiplexing. The 2 MHz clock rate yields a raw read throughput of 2 Mbit/s, though the 5 ms write cycle dominates overall latency in a write-heavy application.","metaTitle":"STMicroelectronics M93C46-WMN6TP EEPROM, 1Kbit, Microwire","metaDescription":"STMicroelectronics M93C46-WMN6TP 1Kbit serial EEPROM with Microwire interface, 2 MHz clock, 2.5-5.5V supply, -40 to +85°C. Active, RoHS3. Order via RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Package":"Tape & Reel (TR); Cut Tape (CT)","Technology":"EEPROM","Memory Size":"1Kbit","Memory Type":"Non-Volatile","Memory Format":"EEPROM","Mounting Type":"Surface Mount","Package / Case":"8-SOIC (0.154\\\", 3.90mm Width)","Clock Frequency":"2 MHz","lifecycle_stage":"eol_hot","Memory Interface":"Microwire","Voltage - Supply":"2.5V ~ 5.5V","Memory Organization":"128 x 8, 64 x 16","Operating Temperature":"-40°C ~ 85°C (TA)","Supplier Device Package":"8-SOIC","Write Cycle Time - Word, Page":"5ms"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.19","priceTiers":[{"qty":1,"price":"$0.19000","currency":"USD"},{"qty":10,"price":"$0.19100","currency":"USD"},{"qty":25,"price":"$0.17720","currency":"USD"},{"qty":50,"price":"$0.17620","currency":"USD"},{"qty":100,"price":"$0.15640","currency":"USD"},{"qty":250,"price":"$0.15440","currency":"USD"},{"qty":500,"price":"$0.15208","currency":"USD"},{"qty":1000,"price":"$0.14801","currency":"USD"},{"qty":2500,"price":"$0.14481","currency":"USD"},{"qty":5000,"price":"$0.13306","currency":"USD"},{"qty":12500,"price":"$0.13072","currency":"USD"},{"qty":25000,"price":"$0.12761","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/19f7728dd3421cf498581b69e2d69a9f.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/M93C46-WMN6TP/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/M93C46-WMN6TP","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/M93C46-WMN6TP 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}}