{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"25LC080BT-I/SN","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"25LC080BT-I-SN","canonicalUrl":"https://icboms.com/microchip/25LC080BT-I-SN","factsUrl":"https://icboms.com/api/mcp/products/25LC080BT-I%2FSN","rawCanonicalId":null},"summary":{"shortDescription":"Microchip Technology 25LC080BT-I/SN EEPROM, 8Kbit, SPI, 10 MHz, 2.5V-5.5V, -40°C to +85°C, 8-SOIC, Tape & Reel.","salesMarkdown":"## 8Kbit SPI EEPROM for parameter storage and calibration data The 25LC080BT-I/SN is an 8Kbit serial EEPROM organized as 1K x 8 bits, accessed through an SPI bus at clock rates up to 10 MHz. The 10 MHz SPI clock lets you read or write the full memory in under 1 ms at the bus level, though each page write commits in 5 ms — budget that into your firmware update routine if you're writing more than one page in a tight loop. Industrial temperature range (-40°C to +85°C) makes it suitable for outdoor telecom cabinets, factory-floor PLCs, and automotive cabin modules where the ambient sees temperature swings but not engine-bay extremes. ## SPI vs I²C — the bus trade-off for this density The 25LC080BT-I/SN uses a 4-wire SPI interface (CS, SCK, MOSI, MISO), which consumes more GPIO pins than an I²C part but eliminates address conflicts on shared buses and gives you full-duplex data transfer. The closest functional peer in the same SOIC-8 footprint is the AT24C08D-SSHM-B, an 8Kbit I²C EEPROM running at 1 MHz. The two are not pin-compatible — the AT24C08D uses SDA and SCL instead of the SPI bus — so swapping them requires a board spin and firmware rewrite of the memory driver. If your design already has spare SPI pins and you need the faster clock rate, the 25LC080BT-I/SN is the cleaner fit. If you're constrained on GPIO count, the I²C alternative saves two pins at the cost of bus speed.","metaTitle":"Microchip 25LC080BT-I/SN 8Kbit SPI EEPROM, 10 MHz, SOIC-8","metaDescription":"25LC080BT-I/SN Microchip 8Kbit SPI EEPROM, 10 MHz clock, 2.5-5.5V supply, -40°C to +85°C, SOIC-8. Active production, ROHS3 compliant. Quoted to order.","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":"8Kbit","Memory Type":"Non-Volatile","Memory Format":"EEPROM","Mounting Type":"Surface Mount","Package / Case":"8-SOIC (0.154\\\", 3.90mm Width)","Clock Frequency":"10 MHz","lifecycle_stage":"eol_hot","Memory Interface":"SPI","Voltage - Supply":"2.5V ~ 5.5V","Memory Organization":"1K x 8","Operating Temperature":"-40°C ~ 85°C (TA)","Supplier Device Package":"8-SOIC","Write Cycle Time - Word, Page":"5ms"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.7","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$0.70000","currency":"USD"},{"qty":3300,"price":"$0.70500","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/981ea70e1ad404b8edc83bb57dca14f5.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Can the 25LC080BT-I/SN replace an AT24C08D-SSHM-B without changing the board?","answer":"No. The 25LC080BT-I/SN uses an SPI interface (CS, SCK, MOSI, MISO), while the AT24C08D-SSHM-B uses I²C (SDA, SCL). They share the same SOIC-8 footprint but the pinout and bus protocol differ, requiring a board layout change and firmware rewrite."},{"question":"What is the write cycle time for the 25LC080BT-I/SN?","answer":"The host must wait this duration after initiating a write before attempting the next operation, which matters for real-time control loops or high-frequency data logging."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/25LC080BT-I-SN","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/25LC080BT-I-SN when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T19:45:10.375Z","lastPublished":"2026-07-22T19:45:10.375Z","indexable":true}}