{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CD74HCT259MT","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"CD74HCT259MT","canonicalUrl":"https://icboms.com/texas-instruments/CD74HCT259MT","factsUrl":"https://icboms.com/api/mcp/products/CD74HCT259MT","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments 74HCT series, CD74HCT259MT, D-Type Addressable Latch, 1:8 circuit, 16 ns propagation delay, 4.5 V to 5.5 V supply, -55°C to 125°C, 16-SOIC package.","salesMarkdown":"## 8-bit addressable latch for 5 V bus systems The CD74HCT259MT: It takes a single data input and routes it to one of eight outputs selected by the address lines — a 1:8 demultiplexing latch. This is different from a transparent latch (like the 74FCT573) where all eight bits are written simultaneously with a single enable. The addressable architecture is useful for sequentially updating registers, scanning LED banks, or distributing control signals across multiple peripherals without needing a separate decoder. ## 16 ns propagation delay — timing budget for 5 V logic The 16 ns propagation delay from address or data input to output is the headline timing spec. The supply range matches the 5 V ±10% rail common in legacy telecom, industrial control, and automotive body electronics. HCT inputs are TTL-compatible, so this latch can interface directly with 5 V CMOS or TTL logic without level translation. If your board also carries 3.3 V peripherals, the HCT input thresholds (0.8 V low, 2.0 V high) mean a 3.3 V CMOS output driving this latch may not reliably reach the high threshold — check the VOH of the driving device. The 74HCT series has been in production for decades and remains a staple for 5 V logic, so the supply channel is mature. Store the reels dry (MSL 1 is typical for SOIC, but verify the label) and this part will sit on the shelf for years without issue. ## 16-SOIC package — footprint and rework It is a gull-wing leaded package, easy to inspect and rework with a hot-air station. No exposed pad, no thermal vias needed — just standard decoupling near the supply pin.","metaTitle":"CD74HCT259MT 74HCT Addressable Latch, 16ns, -55 to 125°C","metaDescription":"CD74HCT259MT 8-bit addressable latch from TI 74HCT series. 16 ns propagation delay, 4 mA output drive, -55 to 125°C range. Active lifecycle.","metaKeywords":null},"attributes":{"series":"74HCT","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Logic ICs"],"specifications":{"Series":"74HCT","Circuit":"1:8","Package":"Tape & Reel (TR); Cut Tape (CT)","Logic Type":"D-Type, Addressable","Output Type":"Standard","Mounting Type":"Surface Mount","Package / Case":"16-SOIC (0.154\\\", 3.90mm Width)","lifecycle_stage":"eol_hot","Voltage - Supply":"4.5V ~ 5.5V","Independent Circuits":"1","Operating Temperature":"-55°C ~ 125°C","Supplier Device Package":"16-SOIC","Delay Time - Propagation":"16ns","Current - Output High, Low":"4mA, 4mA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.26","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$1.26000","currency":"USD"},{"qty":10,"price":"$1.12600","currency":"USD"},{"qty":25,"price":"$1.06840","currency":"USD"},{"qty":100,"price":"$0.87770","currency":"USD"},{"qty":250,"price":"$0.82044","currency":"USD"},{"qty":500,"price":"$0.72504","currency":"USD"},{"qty":1250,"price":"$0.57240","currency":"USD"},{"qty":2500,"price":"$0.54000","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/f797d4adec1d39a9d49d211500659fce.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the lead time for CD74HCT259MT?","answer":"Lead time is confirmed at quote time when you submit an RFQ. As an active, mature logic part with broad distribution, typical lead times are manageable, but current supply conditions vary. We will quote the specific lead time for your quantity on request."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/CD74HCT259MT","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/CD74HCT259MT 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}}