{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SN74S140NS","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"SN74S140NS","canonicalUrl":"https://icboms.com/texas-instruments/SN74S140NS","factsUrl":"https://icboms.com/api/mcp/products/SN74S140NS","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments 74S series dual 4-input NAND gate, SN74S140NS, 14-SOIC surface-mount package, 4.75V to 5.25V supply, 6ns propagation delay at 5V/150pF.","salesMarkdown":"## 74S NAND gate in a 14-SOIC footprint The SN74S140NS is a dual 4-input NAND gate from TI's 74S Schottky logic family, packaged in a 14-SOIC (0.209\", 5.30 mm width) surface-mount body with the 14-SO supplier device package marking. The 74S series uses Schottky-clamped transistors to reduce storage time, so propagation delay sits at 6 ns typical at 5 V with a 150 pF load — fast enough to handle 20-30 MHz clock distribution or address decoding in a 5 V-only system without needing a separate high-speed logic family. Input logic-low threshold is 0.5 V max; logic-high is 3.4 V min. That 3.4 V high threshold is higher than a 3.3 V CMOS output can guarantee — this gate expects 5 V TTL levels on its inputs, so a 3.3 V microcontroller needs a level translator or an open-drain buffer pulled up to 5 V before driving the SN74S140NS. Output current capability is 40 mA sourcing (logic high) and 60 mA sinking (logic low). ## Temperature grade and operating envelope Fine for benchtop instrumentation, telecom racks with active cooling, or factory-floor cabinets that stay above freezing. Not rated for the -40°C cold start of an automotive or outdoor enclosure.","metaTitle":"SN74S140NS TI 74S Dual 4-Input NAND Gate, 14-SOIC","metaDescription":"SN74S140NS Texas Instruments 74S dual 4-input NAND gate, 6ns propagation delay at 5V/150pF. Active production, RoHS3 compliant. Sourced to order.","metaKeywords":null},"attributes":{"series":"74S","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Series":"74S","Package":"Tube","Logic Type":"NAND Gate","Mounting Type":"Surface Mount","Package / Case":"14-SOIC (0.209\\\", 5.30mm Width)","lifecycle_stage":"eol_hot","Number of Inputs":"4","Voltage - Supply":"4.75V ~ 5.25V","Number of Circuits":"2","Operating Temperature":"0°C ~ 70°C","Input Logic Level - Low":"0.5V","Supplier Device Package":"14-SO","Input Logic Level - High":"3.4V","Current - Output High, Low":"40mA, 60mA","Max Propagation Delay @ V, Max CL":"6ns @ 5V, 150pF"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$3.67","priceTiers":[{"qty":1,"price":"$3.67000","currency":"USD"},{"qty":10,"price":"$3.29700","currency":"USD"},{"qty":25,"price":"$3.11720","currency":"USD"},{"qty":100,"price":"$2.70160","currency":"USD"},{"qty":250,"price":"$2.56304","currency":"USD"},{"qty":500,"price":"$2.29980","currency":"USD"},{"qty":1000,"price":"$1.96050","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/bebf77ae23cd7778a571987737832384.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/SN74S140NS/alternatives.json"},"ai":{"faq":[{"question":"What compliance documentation does Texas Instruments provide for SN74S140NS?","answer":"The part is RoHS3 compliant. TI provides a RoHS certificate and material declaration. No UL or IEC certification is listed for this standard logic IC."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/SN74S140NS","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/SN74S140NS 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}}