{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SN74S02N","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"SN74S02N","canonicalUrl":"https://icboms.com/texas-instruments/SN74S02N","factsUrl":"https://icboms.com/api/mcp/products/SN74S02N","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments 74S series, Logic Type NOR Gate, 4 Circuits, 2 Inputs, 4.75V ~ 5.25V Supply, Through Hole, 14-DIP (0.300\", 7.62mm), 0°C ~ 70°C.","salesMarkdown":"## 74S Schottky NOR gate — still on the active list The Texas Instruments SN74S02N is a quad 2-input NOR gate from the 74S Schottky logic family, housed in a 14-pin DIP (0.300\" body) for through-hole assembly. It runs on a 4.75V to 5.25V supply and is rated over the commercial 0°C to 70°C temperature range. The Schottky-clamped transistors give it a propagation delay of 5 ns at 5V into 50 pF — fast enough for 5V bus timing in older or cost-sensitive digital systems. Each of the four gates can sink 20 mA or source 1 mA at the output, so it drives standard TTL loads directly. ## 5 ns propagation delay — what it means for the bus The 5 ns max delay at 5V and 50 pF is the figure that matters for timing closure. In a 5V system clocked at 20 MHz (50 ns period), a single gate eats 5 ns of the budget — fine for a few levels of logic, but you need to count the cumulative delay through a chain. The Schottky process keeps the edge rates clean, so signal-integrity reflections are less of a headache than with slower logic families. The input thresholds are standard TTL: 0.8 V low, 2 V high, so it will interface directly with 74LS, 74ALS, and other 5V TTL families without level translation. ## Through-hole DIP — rework-friendly footprint The 14-DIP package is about as rework-friendly as it gets. No thermal pad to worry about, no hidden balls — just clip the leads, pull the part, and solder in a replacement. The through-hole format also means the part survives a hot-air rework cycle without lifting pads, which matters for repair benches and legacy board rework. ## Active lifecycle — no LTB pressure The SN74S02N carries an Active product status, so there is no last-time-buy deadline or end-of-life notice to manage. It is ROHS3 compliant. For a 74S logic part that has been in production for decades, this means TI continues to manufacture it for the industrial and aftermarket base. You can qualify it into a new BOM without worrying about a sudden obsolescence-driven redesign.","metaTitle":"SN74S02N 74S NOR Gate, 5V, 14-DIP, Active","metaDescription":"TI SN74S02N quad 2-input NOR gate in 14-DIP. 5V supply, 5ns propagation delay, 0°C to 70°C. Active production.","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":"NOR Gate","Mounting Type":"Through Hole","Package / Case":"14-DIP (0.300\\\", 7.62mm)","lifecycle_stage":"eol_hot","Number of Inputs":"2","Voltage - Supply":"4.75V ~ 5.25V","Number of Circuits":"4","Operating Temperature":"0°C ~ 70°C","Input Logic Level - Low":"0.8V","Supplier Device Package":"14-PDIP","Input Logic Level - High":"2V","Current - Output High, Low":"1mA, 20mA","Max Propagation Delay @ V, Max CL":"5ns @ 5V, 50pF"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.7","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$1.70000","currency":"USD"},{"qty":10,"price":"$1.52500","currency":"USD"},{"qty":25,"price":"$1.43880","currency":"USD"},{"qty":100,"price":"$1.22600","currency":"USD"},{"qty":250,"price":"$1.15116","currency":"USD"},{"qty":500,"price":"$1.00726","currency":"USD"},{"qty":1000,"price":"$0.83459","currency":"USD"},{"qty":2500,"price":"$0.81450","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/48e461938616a5549478f06c51295986.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What are the exact electrical specifications for SN74S02N?","answer":"The SN74S02N is a quad 2-input NOR gate with a 4.75V to 5.25V supply range. Input logic levels are 0.8 V low and 2 V high. Output current capability is 1 mA high, 20 mA low. Maximum propagation delay is 5 ns at 5V into 50 pF. Operating temperature is 0°C to 70°C."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/SN74S02N","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/SN74S02N 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}}