{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SN74S140D","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"SN74S140D","canonicalUrl":"https://icboms.com/texas-instruments/SN74S140D","factsUrl":"https://icboms.com/api/mcp/products/SN74S140D","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments 74S series, SN74S140D, dual 4-input NAND gate, 6 ns propagation delay at 5V/150pF, 40 mA low / 60 mA high output current, 4.75V–5.25V supply, 0°C to 70°C, 14-SOIC package.","salesMarkdown":"## Dual 4-input NAND gate in the 74S family The Texas Instruments SN74S140D is a dual 4-input NAND gate from the 74S Schottky logic family, packaged in a 14-SOIC surface-mount body. It integrates two independent NAND gates, each with four inputs, and operates from a 4.75V to 5.25V supply rail. The 74S series uses Schottky-clamped transistors to achieve higher switching speeds than standard 74LS, with a typical propagation delay of 6 ns at 5V and a 150 pF load. Output drive capability is 40 mA sinking and 60 mA sourcing, which is notably higher than many other 74-series gates — useful for driving multiple fan-out loads or long PCB traces without a buffer. The part is rated for the commercial temperature range of 0°C to 70°C, making it suitable for indoor equipment, office electronics, and general-purpose logic designs where speed and drive strength are priorities. ## Output drive: 40 mA low, 60 mA high The SN74S140D can sink 40 mA and source 60 mA per output. ## Lifecycle and supply posture The SN74S140D carries an Active product status and is ROHS3 compliant.","metaTitle":"SN74S140D 74S Dual 4-Input NAND Gate, 6 ns Propagation Delay","metaDescription":"TI SN74S140D 74S dual 4-input NAND gate in SOIC-14. 6 ns propagation delay at 5V/150pF, 40/60 mA output drive. Active lifecycle, commercial temp.","metaKeywords":null},"attributes":{"series":"74S","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Analog & Data Acquisition"],"specifications":{"Series":"74S","Package":"Tube","Logic Type":"NAND Gate","Mounting Type":"Surface Mount","Package / Case":"14-SOIC (0.154\\\", 3.90mm 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":"0.8V","Supplier Device Package":"14-SOIC","Input Logic Level - High":"2V","Current - Output High, Low":"40mA, 60mA","Max Propagation Delay @ V, Max CL":"6ns @ 5V, 150pF"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$3.26","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$3.26000","currency":"USD"},{"qty":10,"price":"$2.93100","currency":"USD"},{"qty":25,"price":"$2.77120","currency":"USD"},{"qty":100,"price":"$2.40190","currency":"USD"},{"qty":250,"price":"$2.27868","currency":"USD"},{"qty":500,"price":"$2.04466","currency":"USD"},{"qty":1000,"price":"$1.74300","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/bebf77ae23cd7778a571987737832384.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the propagation delay of SN74S140D?","answer":"The maximum propagation delay is 6 ns at 5V supply with a 150 pF load. This is the worst-case spec; actual delay with lighter loads (typical CMOS inputs) will be shorter."},{"question":"What is the equivalent of SN74S140D?","answer":"No official second-source alternate is listed. For a functional equivalent, the SN74F00DR (74F quad 2-input NAND) offers similar speed (5 ns) but lower output drive and a different input count. The SN74ALS11ANS (74ALS triple 3-input AND) is a different logic function. For a drop-in dual 4-input NAND, the SN74S140D itself is the direct choice."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/SN74S140D","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/SN74S140D 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}}