{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SN74HCS259DR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"SN74HCS259DR","canonicalUrl":"https://icboms.com/texas-instruments/SN74HCS259DR","factsUrl":"https://icboms.com/api/mcp/products/SN74HCS259DR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments 74HCS series, SN74HCS259DR, 8-bit addressable D-Type latch, 1:8 circuit, tri-state outputs, 2V-6V supply, 6ns propagation delay, -40°C to 125°C, 16-SOIC package.","salesMarkdown":"## 8-bit addressable latch with Schmitt-trigger inputs The Texas Instruments SN74HCS259DR is an 8-bit addressable latch from the 74HCS logic family, combining a 1:8 demultiplexer and a storage latch in a single 16-SOIC package. It accepts a D-type input and routes it to one of eight outputs based on a three-bit address, with the remaining outputs held in their previous state. The tri-state outputs allow direct connection to shared data buses without external buffers. The -40°C to 125°C operating temperature range qualifies it for industrial and automotive under-hood environments — outdoor telecom cabinets, factory-floor I/O modules, and engine-adjacent ECUs. The 16-SOIC package (3.90 mm width) fits standard PCB layouts and is compatible with automated assembly. ## 6 ns propagation delay — timing margin on the bus At 6 ns typical propagation delay, the SN74HCS259DR adds minimal latency to the address-to-data path. In a typical address-decoding application where the latch sits between the microcontroller address bus and a memory chip, the 6 ns delay leaves headroom for the memory's own access time and board-level trace delays. No need to derate bus speed for this part unless the system clock exceeds roughly 40 MHz. ## Tri-state outputs and bus sharing Tri-state outputs let the latch release the bus when not selected. ## Active production — no LTB risk ROHS3 compliant, lead-free, and suitable for new designs.","metaTitle":"SN74HCS259DR 8-Bit Addressable Latch, 2V-6V, 6ns","metaDescription":"TI SN74HCS259DR 8-bit addressable latch, 2V-6V supply, 6ns propagation delay, tri-state outputs, -40°C to 125°C. Active production, SOIC-16. Available to order.","metaKeywords":null},"attributes":{"series":"74HCS","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Series":"74HCS","Circuit":"1:8","Package":"Tape & Reel (TR); Cut Tape (CT)","Logic Type":"D-Type, Addressable","Output Type":"Tri-State","Mounting Type":"Surface Mount","Package / Case":"16-SOIC (0.154\\\", 3.90mm Width)","lifecycle_stage":"eol_hot","Voltage - Supply":"2V ~ 6V","Independent Circuits":"1","Operating Temperature":"-40°C ~ 125°C","Supplier Device Package":"16-SOIC","Delay Time - Propagation":"6ns","Current - Output High, Low":"7.8mA, 7.8mA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.43","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$0.43000","currency":"USD"},{"qty":10,"price":"$0.36600","currency":"USD"},{"qty":25,"price":"$0.34120","currency":"USD"},{"qty":100,"price":"$0.27310","currency":"USD"},{"qty":250,"price":"$0.25356","currency":"USD"},{"qty":500,"price":"$0.21454","currency":"USD"},{"qty":1000,"price":"$0.16578","currency":"USD"},{"qty":2500,"price":"$0.15116","currency":"USD"},{"qty":5000,"price":"$0.14140","currency":"USD"},{"qty":12500,"price":"$0.13800","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/e288f79e664205054f72741e159d2426.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is SN74HCS259DR tri-state?","answer":"Yes, the outputs are tri-state, allowing the latch to release the bus when not selected."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/SN74HCS259DR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/SN74HCS259DR 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}}