{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"AT93C46D-TP25-B","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"AT93C46D-TP25-B","canonicalUrl":"https://icboms.com/microchip/AT93C46D-TP25-B","factsUrl":"https://icboms.com/api/mcp/products/AT93C46D-TP25-B","rawCanonicalId":null},"summary":{"shortDescription":"Microchip Technology AT93C46D-TP25-B EEPROM, 1Kbit, 3-Wire Serial, 2 MHz, 1.8V-5.5V, -40°C to +85°C, 8-TSSOP, Bulk.","salesMarkdown":"## 1 Kbit serial EEPROM for calibration and configuration storage The Microchip AT93C46D-TP25-B is a 1 Kbit serial EEPROM organized as 128 x 8 or 64 x 16 bits, accessed over a 3-wire interface at up to 2 MHz. The 5 ms write cycle time per word or page means the host waits one bus transaction before polling the ready/busy status; for a 64-byte page write the total non-volatile store completes in under 5 ms. ## 8-TSSOP surface-mount footprint and industrial temperature range Supplied in bulk tube — the packaging form means the parts ship in anti-static tubes, not tape-and-reel, so the MOQ is typically a tube quantity (100 pieces) rather than a full reel.","metaTitle":"Microchip AT93C46D-TP25-B EEPROM, 1Kbit, 2 MHz, 8-TSSOP","metaDescription":"Microchip AT93C46D-TP25-B 1Kbit serial EEPROM, 2 MHz clock, 1.8-5.5V supply, -40 to +85°C, 8-TSSOP. Active production, sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Package":"Bulk","Technology":"EEPROM","Memory Size":"1Kbit","Memory Type":"Non-Volatile","Memory Format":"EEPROM","Mounting Type":"Surface Mount","Package / Case":"8-TSSOP (0.173\\\", 4.40mm Width)","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-TSSOP","Write Cycle Time - Word, Page":"5ms"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.44","priceTiers":[{"qty":687,"price":"$0.44000","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/8ca7b8d9defb2b36fd44dda63fcc40a7.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/AT93C46D-TP25-B/alternatives.json"},"ai":{"faq":[{"question":"What is the AT93C46D-TP25-B used for?","answer":"This 1 Kbit serial EEPROM stores calibration constants, configuration parameters, device IDs, or small lookup tables that must persist through power cycles. The 3-wire interface and 2 MHz clock suit low-pin-count MCUs and ASICs that lack an I²C peripheral."},{"question":"Does the AT93C46D-TP25-B replace the AT24C08D-SSHM-B?","answer":"No — the AT93C46D-TP25-B uses a 3-wire serial interface, while the AT24C08D-SSHM-B uses I²C. They are not pin-compatible and require different bus protocols. The AT93C46D is the correct drop-in for designs originally laid out for a 93C46-series EEPROM."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/AT93C46D-TP25-B","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/AT93C46D-TP25-B when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:49:49.435Z","lastPublished":"2026-08-11T15:49:49.435Z","indexable":true}}