{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"BR93L46F-WE2","brand":"ROHM Semiconductor","brandSlug":"rohm","productSlug":"BR93L46F-WE2","canonicalUrl":"https://icboms.com/rohm/BR93L46F-WE2","factsUrl":"https://icboms.com/api/mcp/products/BR93L46F-WE2","rawCanonicalId":null},"summary":{"shortDescription":"ROHM BR93L46F-WE2, 1Kbit EEPROM, Microwire interface, 2 MHz clock, 1.8V–5.5V supply, -40°C to 85°C, 8-SOIC surface mount.","salesMarkdown":"## 1Kbit EEPROM for configuration storage — what the ratings mean The ROHM BR93L46F-WE2 is a 1Kbit serial EEPROM organized as 64 words by 16 bits, accessed over a Microwire (3-wire) interface at up to 2 MHz. It stores non-volatile parameters — calibration constants, serial numbers, trim values, or small lookup tables — in a 1.8V to 5.5V system without needing a separate supply rail. The 5ms write cycle per word or page is typical for this density; fine for infrequent writes like factory programming or field-update of a few bytes. ROHS3 compliance is confirmed, clearing EU regulatory requirements for new builds. ## Industrial temperature range — fits factory and outdoor gear If your design needs the wider -40°C to 105°C or 125°C range, the automotive-grade BR93A46RFVT-WME2 (AEC-Q100, 2.5V min supply) is a functional alternative — same 1Kbit density and Microwire interface, but with a higher minimum supply voltage. ## Microwire bus at 2 MHz — timing margin for most MCUs The 2 MHz clock rate on the Microwire bus delivers about 250 kbit/s read throughput after overhead. That is enough for a 64-word read in under 1 ms. Most 8-bit and 32-bit MCUs with a bit-banged or SPI-configured Microwire port will meet the setup and hold times with a few hundred picoseconds of margin. The wide supply range (1.8V to 5.5V) means you can run the bus at the same voltage as the host controller — no level shifter needed. ## Sourcing and supply posture No lead-time number is published here, but the active status means factory output continues — we can quote both reel quantities (Tape & Reel) and small cut-tape volumes for prototypes or repair runs.","metaTitle":"BR93L46F-WE2 EEPROM 1Kbit Microwire 2MHz 8-SOIC","metaDescription":"ROHM BR93L46F-WE2 1Kbit EEPROM, Microwire interface at 2 MHz, 1.8V-5.5V supply, -40°C to 85°C, 8-SOIC. Active, ROHS3 compliant.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Microcontrollers & Processors (MCU / MPU / DSP)"],"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 (0.173\\\", 4.40mm Width)","Clock Frequency":"2 MHz","lifecycle_stage":"eol_hot","Memory Interface":"Microwire","Voltage - Supply":"1.8V ~ 5.5V","Memory Organization":"64 x 16","Operating Temperature":"-40°C ~ 85°C (TA)","Supplier Device Package":"8-SOP","Write Cycle Time - Word, Page":"5ms"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.52","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$0.52000","currency":"USD"},{"qty":10,"price":"$0.51200","currency":"USD"},{"qty":25,"price":"$0.47560","currency":"USD"},{"qty":50,"price":"$0.47280","currency":"USD"},{"qty":100,"price":"$0.41990","currency":"USD"},{"qty":250,"price":"$0.41460","currency":"USD"},{"qty":500,"price":"$0.40834","currency":"USD"},{"qty":1000,"price":"$0.39742","currency":"USD"},{"qty":2500,"price":"$0.38884","currency":"USD"},{"qty":5000,"price":"$0.35726","currency":"USD"},{"qty":12500,"price":"$0.35100","currency":"USD"},{"qty":25000,"price":"$0.34264","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/aebe8742770d30735e01ff54ee7e3764.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Where can I buy BR93L46F-WE2 and what is the price?","answer":"BR93L46F-WE2 is available to order through independent distribution. Pricing and current stock levels are quoted against an RFQ — no public price list is maintained, but we can confirm availability at the time of your request."},{"question":"Is BR93L46F-WE2 obsolete or still active?","answer":"The BR93L46F-WE2 is listed as active by ROHM. No end-of-life notice has been issued, so you can design it in without immediate LTB risk."},{"question":"Can BR93L46F-WE2 operate at 3.3V supply?","answer":"Yes. The supply range covers 1.8V to 5.5V, so 3.3V operation is within the rated window. No level translation is needed when the host controller also runs at 3.3V."},{"question":"What is the direct replacement or equivalent for BR93L46F-WE2?","answer":"The BR93G46FVM-3AGTTR is a close functional equivalent — same 1Kbit density, same Microwire interface, same 64 x 16 organization, and a slightly higher 3 MHz clock. It operates down to 1.7V supply and shares the 5ms write cycle. The package is different (MSOP-8 vs SOIC-8), so the PCB footprint must be checked. For an automotive-grade alternative, consider the BR93A46RFVT-WME2 (AEC-Q100, 2.5V min supply, -40°C to 105°C)."},{"question":"Is BR93L46F-WE2 RoHS compliant?","answer":"Yes, it is ROHS3 compliant per the manufacturer's listing."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/rohm/BR93L46F-WE2","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/rohm/BR93L46F-WE2 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-17T19:50:00.618Z","lastPublished":"2026-07-17T19:50:00.618Z","indexable":true}}