{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"AT93C46DY6-YH-T","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"AT93C46DY6-YH-T","canonicalUrl":"https://icboms.com/microchip/AT93C46DY6-YH-T","factsUrl":"https://icboms.com/api/mcp/products/AT93C46DY6-YH-T","rawCanonicalId":null},"summary":{"shortDescription":"Microchip AT93C46DY6-YH-T, 1Kbit serial EEPROM, 3-Wire interface, 2 MHz clock, 1.8V-5.5V supply, 128x8 / 64x16 organization, 8-UFDFN Exposed Pad package, -40°C to 85°C.","salesMarkdown":"## 1Kbit serial EEPROM in a 2x3 mm Mini Map package The Microchip AT93C46DY6-YH-T is a 1Kbit serial EEPROM organized as 128 x 8 or 64 x 16 bits, accessed through a 3-Wire serial interface. The part is housed in an 8-UFDFN Exposed Pad package (8-Mini Map, 2x3 mm) for surface-mount assembly, with the exposed pad aiding heat transfer into the PCB. ## Supply voltage flexibility and write timing The 1.8V minimum supply voltage lets this EEPROM work directly from a 1.8V MCU or FPGA bank without a level shifter, while the 5.5V maximum covers 5V legacy buses. The 3-Wire serial interface (CS, SK, DI/DO) is the same as the industry-standard 93C46 family, so existing driver code usually ports with minimal changes.","metaTitle":"AT93C46DY6-YH-T EEPROM, 1Kbit, 2 MHz, 3-Wire Serial","metaDescription":"Microchip AT93C46DY6-YH-T 1Kbit serial EEPROM, 2 MHz clock, 1.8V-5.5V supply, -40°C to 85°C, 8-UFDFN package. Active lifecycle, ROHS3.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Memory (DRAM / SRAM / Flash / EEPROM)"],"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-UFDFN Exposed Pad","Clock Frequency":"2 MHz","lifecycle_stage":"eol_hot","Memory Interface":"3-Wire Serial","Voltage - Supply":"1.8V ~ 5.5V","Memory Organization":"128 x 8, 64 x 16","Operating Temperature":"-40°C ~ 85°C (TA)","Supplier Device Package":"8-Mini Map (2x3)","Write Cycle Time - Word, Page":"5ms"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.3","priceTiers":[{"qty":1,"price":"$0.30000","currency":"USD"},{"qty":5000,"price":"$0.30000","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/592a452904436ea78661ba57633fbb4f.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/AT93C46DY6-YH-T/alternatives.json"},"ai":{"faq":[{"question":"Is AT93C46DY6-YH-T compatible with 1.8V systems?","answer":"Yes. The supply voltage range is 1.8V to 5.5V, so it operates directly from a 1.8V rail without a level shifter. The 3-Wire serial interface logic levels track VCC, so a 1.8V supply means 1.8V I/O."},{"question":"What is the equivalent of AT93C46DY6-YH-T?","answer":"The closest functional equivalent is the AT93C46DY6-YH-E, which shares the same 1Kbit density, 2 MHz clock, 3-Wire interface, and 8-Mini Map package. The -YH-E suffix indicates a different packing option (Digi-Reel vs Tape & Reel), not a functional difference. For a 2Kbit alternative in a larger SOIC package, consider the AT93C56B-SSHM-B."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/AT93C46DY6-YH-T","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/AT93C46DY6-YH-T when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-20T14:34:45.345Z","lastPublished":"2026-07-20T14:34:45.345Z","indexable":true}}