{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"DS2431P+","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"DS2431P","canonicalUrl":"https://icboms.com/analog-devices/DS2431P","factsUrl":"https://icboms.com/api/mcp/products/DS2431P%2B","rawCanonicalId":null},"summary":{"shortDescription":"Maxim Integrated DS2431P+, 1Kbit EEPROM, 1-Wire interface, 256 x 4 organization, 2 µs access time, -40°C to +85°C, 6-TSOC J-lead package, Tube.","salesMarkdown":"## 1-Wire bus — one data line, one ground, one part The 1-Wire interface uses a single data line plus ground for both power and communication. The host microcontroller drives the bus timing; the DS2431P+ responds within 2 µs per time slot. This keeps the wiring harness simple — two conductors instead of the four or five an I²C or SPI EEPROM would need. The trade-off is bus speed: 1-Wire is slower than SPI, but for a 1Kbit block of calibration constants or serial numbers read once at power-up, the throughput is adequate. The 256 x 4 organization means the part is addressed in 4-bit nibbles, which the 1-Wire ROM command layer handles transparently. ## Industrial temperature range — field reliability without a heater Rated from -40°C to +85°C ambient, the DS2431P+ covers industrial enclosures and outdoor telecom gear. The EEPROM cells hold data across the full range without battery backup. ## Package and footprint — TSOC J-lead for existing DS2431 layouts The DS2431P+ comes in a 6-pin TSOC (thin small-outline package) with J-bend leads, surface-mount. The J-lead footprint matches older TSOC packages, so a board laid out for a TSOC should accept the DS2431P+ without a layout change. The part ships in Tube. ## Lifecycle — active, no LTB pressure The DS2431P+ carries an Active product status. The ROHS3 compliance is current, so it passes European and California regulatory requirements without an exemption.","metaTitle":"DS2431P+ 1Kbit 1-Wire EEPROM, 2 µs access, -40 to 85°C","metaDescription":"DS2431P+ 1Kbit EEPROM with 1-Wire interface, 2 µs access time, 256 x 4 organization, -40°C to +85°C, 6-TSOC package. Active production.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["DC-DC Power Modules"],"specifications":{"Package":"Tube","Technology":"EEPROM","Access Time":"2 µs","Memory Size":"1Kbit","Memory Type":"Non-Volatile","Memory Format":"EEPROM","Mounting Type":"Surface Mount","Package / Case":"6-SMD, J-Lead","lifecycle_stage":"eol_hot","Memory Interface":"1-Wire®","Memory Organization":"256 x 4","Operating Temperature":"-40°C ~ 85°C (TA)","Supplier Device Package":"6-TSOC"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.1","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$2.10000","currency":"USD"},{"qty":10,"price":"$1.91500","currency":"USD"},{"qty":25,"price":"$1.86320","currency":"USD"},{"qty":50,"price":"$1.85380","currency":"USD"},{"qty":100,"price":"$1.65710","currency":"USD"},{"qty":250,"price":"$1.65224","currency":"USD"},{"qty":500,"price":"$1.62732","currency":"USD"},{"qty":1000,"price":"$1.55823","currency":"USD"},{"qty":5000,"price":"$1.45076","currency":"USD"}]},"links":{"datasheetUrl":"https://datasheets.maximintegrated.com/en/ds/DS2431.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is DS2431P+ compatible with DS2431 sockets?","answer":"Yes — the DS2431P+ uses the same 6-pin TSOC J-lead package as the older DS2431 TSOC variants. The footprint and pinout are identical, so a board designed for a DS2431 TSOC will accept the DS2431P+ without a PCB layout change."},{"question":"Does DS2431P+ contain the same memory organization as older DS2431?","answer":"Yes — the DS2431P+ has the same 256 x 4 memory organization (1Kbit total) as the original DS2431. The 1-Wire protocol and command set are also identical, so firmware written for the DS2431 works without modification."},{"question":"What is the closest pin-compatible alternative to DS2431P+ in this component family?","answer":"Within the DS2431 family, the DS2431P+ is the TSOC surface-mount variant. The DS2431 (without the P+ suffix) in the same TSOC package is the direct pin-compatible sibling. The DS2431 in a TO-92 package is functionally identical but has a different footprint and cannot be used on the same PCB layout."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/DS2431P","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/DS2431P 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}}