{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"25CSM04T-I/MF","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"25CSM04T-I-MF","canonicalUrl":"https://icboms.com/microchip/25CSM04T-I-MF","factsUrl":"https://icboms.com/api/mcp/products/25CSM04T-I%2FMF","rawCanonicalId":null},"summary":{"shortDescription":"Microchip Technology 25CS series EEPROM, 25CSM04T-I/MF, 4Mbit SPI, 8 MHz, 2.5-5.5V, 8-WDFN exposed pad, -40 to 85°C, Tape & Reel.","salesMarkdown":"## 4 Mbit SPI EEPROM for non-volatile parameter storage The 25CSM04T-I/MF is a 4 Mbit serial EEPROM organized as 512K x 8 bits, accessed through an SPI bus at up to 8 MHz. It stores configuration data, calibration constants, or firmware parameters that must survive power loss — typical for industrial controllers, metering equipment, and embedded systems that log or retain state across reboots. ## Industrial temperature and package fit for reflow assembly Housed in an 8-WDFN with exposed pad (5x6 mm footprint), the package requires a thermal land on the PCB to draw heat from the die into the board plane. The exposed pad is the primary thermal path — without a soldered pad connection, junction temperature rises faster under continuous write cycles. The 5 ms page write cycle means a single 256-byte page takes 5 ms to program; a full 4 Mbit chip rewrite at 512 pages per write cycle budgets roughly 2.6 seconds of total write time, which matters for firmware-update windows or high-frequency data logging. ## Active lifecycle and compliance documentation CT is a cut length for prototype or low-volume builds.","metaTitle":"Microchip 25CSM04T-I/MF 4Mbit SPI EEPROM, 8-WDFN","metaDescription":"Microchip Technology 25CSM04T-I/MF 4Mbit SPI EEPROM, 8 MHz clock, 2.5-5.5V supply, -40 to 85°C. Active production, ROHS3 compliant. Quoted to order.","metaKeywords":null},"attributes":{"series":"25CS","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Series":"25CS","Package":"Tape & Reel (TR); Cut Tape (CT)","Technology":"EEPROM","Memory Size":"4Mbit","Memory Type":"Non-Volatile","Memory Format":"EEPROM","Mounting Type":"Surface Mount","Package / Case":"8-WDFN Exposed Pad","Clock Frequency":"8 MHz","lifecycle_stage":"eol_hot","Memory Interface":"SPI","Voltage - Supply":"2.5V ~ 5.5V","Memory Organization":"512K x 8","Operating Temperature":"-40°C ~ 85°C (TA)","Supplier Device Package":"8-WDFN (5x6)","Write Cycle Time - Word, Page":"5ms"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$4.19","stockQuantity":26,"priceTiers":[{"qty":1,"price":"$4.19000","currency":"USD"},{"qty":25,"price":"$4.14000","currency":"USD"},{"qty":2000,"price":"$4.14000","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/5bb55fb4d55676589b034b3bbcd7d9b4.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What compliance documentation does Microchip provide for 25CSM04T-I/MF?","answer":"The part is ROHS3 compliant. Microchip provides a certificate of compliance and material declaration per the standard ROHS3 scope."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/25CSM04T-I-MF","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/25CSM04T-I-MF 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}}