{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SN74S20N","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"SN74S20N","canonicalUrl":"https://icboms.com/texas-instruments/SN74S20N","factsUrl":"https://icboms.com/api/mcp/products/SN74S20N","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments 74S series, Logic type NAND Gate, 2 Circuit, 4 Input, Through Hole, 14-DIP (0.300\", 7.62mm), 4.75V ~ 5.25V supply, 0°C ~ 70°C operating temperature.","salesMarkdown":"## Dual 4-input NAND gate in 14-DIP — 5 ns propagation delay The SN74S20N is a Texas Instruments 74S-series dual 4-input NAND gate in a 14-pin DIP package. It operates from a 4.75V to 5.25V supply and is rated for the commercial temperature range of 0°C to 70°C. The 5 ns maximum propagation delay at 5V with a 50 pF load makes it suitable for high-speed TTL logic designs where signal timing is tight. Each of the two independent gates accepts four inputs, with a guaranteed low-level threshold of 0.8V and high-level threshold of 2V — standard TTL-compatible levels. Quiescent supply current is 8 mA maximum, and the output can source 1 mA or sink 20 mA. ## 5 ns propagation delay — what it means for the bus The 5 ns delay at 5V, 50 pF is the headline timing spec. In a backplane or memory-address decode path, that delay sets the minimum setup time the next stage needs. ## Active lifecycle — no last-time-buy pressure No end-of-life notices or last-time-buy dates are recorded. ROHS3 compliant. For new designs, the 74S series is a mature logic family. If your BOM calls for a through-hole 14-DIP dual 4-input NAND gate, this part is available through independent distribution and quoted to order against an RFQ — no allocation risk typical of newer process nodes. ## Package and mounting — through-hole 14-DIP 14-lead DIP with 0.300-inch body width and 7.62 mm row spacing. Through-hole mounting suits prototype boards, legacy PCB retrofits, and hand-assembled runs. The supplier device package is 14-PDIP.","metaTitle":"SN74S20N NAND Gate, 2 Circuit 4-Input, 14-DIP, 5 ns @ 5V","metaDescription":"SN74S20N Texas Instruments 74S dual 4-input NAND gate in 14-DIP. 5 ns propagation delay at 5V, 50 pF. Active production, ROHS3 compliant.","metaKeywords":null},"attributes":{"series":"74S","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Circuit Protection"],"specifications":{"Series":"74S","Package":"Tube","Logic Type":"NAND Gate","Mounting Type":"Through Hole","Package / Case":"14-DIP (0.300\\\", 7.62mm)","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-PDIP","Input Logic Level - High":"2V","Current - Quiescent (Max)":"8 mA","Current - Output High, Low":"1mA, 20mA","Max Propagation Delay @ V, Max CL":"5ns @ 5V, 50pF"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$3.07","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$3.07000","currency":"USD"},{"qty":10,"price":"$2.75800","currency":"USD"},{"qty":25,"price":"$2.60240","currency":"USD"},{"qty":100,"price":"$2.21720","currency":"USD"},{"qty":250,"price":"$2.08184","currency":"USD"},{"qty":500,"price":"$1.82160","currency":"USD"},{"qty":1000,"price":"$1.50933","currency":"USD"},{"qty":2500,"price":"$1.47300","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/4a750e614a1b3477cd101627846ac7c2.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the propagation delay of SN74S20N at 5V?","answer":"5 ns maximum at 5V with a 50 pF load."},{"question":"What are the equivalent parts or replacements for SN74S20N?","answer":"The SN74HC20N is a pin-compatible CMOS equivalent but with a 19 ns delay at 6V — not a speed match. The SN74F00DR (quad 2-input NAND, surface mount) shares the 5 ns delay but has a different pinout and package. If you need a through-hole 14-DIP dual 4-input NAND with 5 ns speed, the SN74S20N is the direct choice."},{"question":"What is the difference between SN74S20N and 74LS20?","answer":"The 74LS20 is a lower-power Schottky variant with typical propagation delay around 9–15 ns, versus 5 ns for the 74S. The 74S consumes more quiescent current (8 mA max vs ~2 mA for LS). Pinout is identical, so the SN74S20N is a direct speed upgrade if the power budget allows."},{"question":"What is the price of SN74S20N?","answer":"Pricing is confirmed at quote time against an RFQ. Submit an inquiry for current market pricing."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/SN74S20N","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/SN74S20N 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}}