{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"BR93L86RFJ-WE2","brand":"ROHM Semiconductor","brandSlug":"rohm","productSlug":"BR93L86RFJ-WE2","canonicalUrl":"https://icboms.com/rohm/BR93L86RFJ-WE2","factsUrl":"https://icboms.com/api/mcp/products/BR93L86RFJ-WE2","rawCanonicalId":null},"summary":{"shortDescription":"ROHM BR93L86RFJ-WE2, 16Kbit EEPROM, Microwire interface, 2 MHz clock, 1.8V to 5.5V supply, -40°C to 85°C, 8-SOIC (0.154\", 3.90mm Width), 8-SOP-J, Tape & Reel.","salesMarkdown":"## 16Kbit serial EEPROM with a wide supply net The ROHM BR93L86RFJ-WE2 is a 16Kbit serial EEPROM organized as 1K x 16 bits, accessed through a Microwire (three-wire) interface running at up to 2 MHz. It operates from a single 1.8V to 5.5V supply, covering both legacy 5V logic and modern 3.3V or 1.8V core rails without a level translator. The 2 MHz clock rate on the Microwire bus translates to a theoretical 2 Mbit/s serial throughput. For a 16-bit word, that is about 125,000 read operations per second, minus protocol overhead. That is fast enough for parameter storage, calibration tables, or firmware patch staging in most MCU-based designs. If your application needs to stream data faster than that — say, logging sensor data at 100 kHz — you will need a parallel or SPI-based memory instead. ## Supply range and write-cycle timing The 1.8V to 5.5V supply range is wide enough to bridge a 3.3V MCU and a 5V legacy sensor bus on the same rail without a secondary regulator. The write cycle time is 5 ms per word or page, which means a full 1K x 16 memory rewrite takes about 5 seconds if you write every word sequentially. That is acceptable for infrequent calibration updates but too slow for real-time data logging. Keep the 5 ms write time in your firmware timing budget — do not poll the part during a write cycle or you risk corrupting the data. ## Package and assembly check The part is also available in Cut Tape for prototyping. The small 8-pin footprint is common and easy to route; no special thermal considerations apply at the rated 85°C ambient.","metaTitle":"BR93L86RFJ-WE2 EEPROM 16Kbit Microwire 2MHz 8-SOIC","metaDescription":"ROHM BR93L86RFJ-WE2 16Kbit EEPROM, Microwire interface, 2 MHz clock, 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":"16Kbit","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":"1.8V ~ 5.5V","Memory Organization":"1K x 16","Operating Temperature":"-40°C ~ 85°C (TA)","Supplier Device Package":"8-SOP-J","Write Cycle Time - Word, Page":"5ms"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.77","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$0.77000","currency":"USD"},{"qty":10,"price":"$0.70300","currency":"USD"},{"qty":25,"price":"$0.69400","currency":"USD"},{"qty":50,"price":"$0.68980","currency":"USD"},{"qty":100,"price":"$0.61680","currency":"USD"},{"qty":250,"price":"$0.61156","currency":"USD"},{"qty":500,"price":"$0.60252","currency":"USD"},{"qty":1000,"price":"$0.58097","currency":"USD"},{"qty":2500,"price":"$0.56463","currency":"USD"},{"qty":5000,"price":"$0.52917","currency":"USD"},{"qty":12500,"price":"$0.51178","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/aebe8742770d30735e01ff54ee7e3764.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Can BR93L86RFJ-WE2 operate at 1.8V to 5.5V across all temperature ranges?","answer":"No derating is required."},{"question":"What is the maximum clock frequency and is it Microwire or SPI compatible?","answer":"The maximum clock frequency is 2 MHz, and the interface is Microwire — a three-wire serial bus that is not directly SPI-compatible. Your MCU must support Microwire natively or you must bit-bang the protocol on GPIO pins."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/rohm/BR93L86RFJ-WE2","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/rohm/BR93L86RFJ-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}}