{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"AT24MAC402-XHM-T","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"AT24MAC402-XHM-T","canonicalUrl":"https://icboms.com/microchip/AT24MAC402-XHM-T","factsUrl":"https://icboms.com/api/mcp/products/AT24MAC402-XHM-T","rawCanonicalId":null},"summary":{"shortDescription":"Microchip AT24MAC402-XHM-T, 2Kbit Serial I²C EEPROM, 1 MHz clock, 550 ns access, 1.7V-5.5V supply, 8-TSSOP, -40°C to 85°C.","salesMarkdown":"## What this EEPROM brings that a generic 2Kbit doesn't The Microchip AT24MAC402-XHM-T is a 2Kbit serial EEPROM with a factory-programmed, unique MAC address. That pre-loaded ID saves a separate MAC-address chip or a firmware-assigned address that can collide on a network. ## Supply range and bus compatibility The 1.7V to 5.5V supply range covers the common 3.3V and 5V rails found on most MCU boards. At 5V the I²C bus meets 5V logic thresholds directly; at 3.3V the device remains fully functional with the same 1 MHz clock. No external regulator or level shifter needed for either voltage.","metaTitle":"AT24MAC402-XHM-T EEPROM 2Kbit I²C 1MHz 8-TSSOP","metaDescription":"Microchip AT24MAC402-XHM-T 2Kbit I²C EEPROM, 1 MHz, 1.7V-5.5V, 8-TSSOP. Active lifecycle, industrial temp.","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","Access Time":"550 ns","Memory Size":"2Kbit","Memory Type":"Non-Volatile","Memory Format":"EEPROM","Mounting Type":"Surface Mount","Package / Case":"8-TSSOP (0.173\\\", 4.40mm Width)","Clock Frequency":"1 MHz","lifecycle_stage":"eol_hot","Memory Interface":"I²C","Voltage - Supply":"1.7V ~ 5.5V","Memory Organization":"256 x 8","Operating Temperature":"-40°C ~ 85°C (TA)","Supplier Device Package":"8-TSSOP","Write Cycle Time - Word, Page":"5ms"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.38","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$0.38000","currency":"USD"},{"qty":25,"price":"$0.37520","currency":"USD"},{"qty":5000,"price":"$0.37500","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/31385c9c62ee00d8d81ec55d97fbb9ed.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is AT24MAC402-XHM-T compatible with 5V supply?","answer":"Yes, the supply range is 1.7V to 5.5V, so it works directly on a 5V rail without a level shifter."},{"question":"Is AT24MAC402-XHM-T compatible with 3.3V logic?","answer":"Yes, the 1.7V to 5.5V supply range includes 3.3V, and the I²C interface operates at 1 MHz at that voltage."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/AT24MAC402-XHM-T","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/AT24MAC402-XHM-T when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-17T19:50:00.618Z","lastPublished":"2026-07-17T19:50:00.618Z","indexable":true}}