{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SN74LS02NS","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"SN74LS02NS","canonicalUrl":"https://icboms.com/texas-instruments/SN74LS02NS","factsUrl":"https://icboms.com/api/mcp/products/SN74LS02NS","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments 74LS series, SN74LS02NS, Quad 2-Input NOR Gate, 4.75V to 5.25V supply, 15 ns propagation delay at 5V/15pF, 400µA/16mA output drive, 0°C to 70°C, 14-SOIC package.","salesMarkdown":"## Quad 2-input NOR gate for 5V TTL logic – what you need to know The SN74LS02NS: Quad 2-input NOR gate from the 74LS series. Four independent gates in one package, each with two inputs. Supply range 4.75 V to 5.25 V, operating temperature 0°C to 70°C. Propagation delay 15 ns at 5 V with 15 pF load. Output drive 400 µA source, 16 mA sink. The SN74F27NSR (74F series) has 5 ns at 5 V, 50 pF. ## Output drive – 400 µA source, 16 mA sink The 16 mA sink capability is typical for 74LS and enough to drive a standard TTL input or a low-current LED through a series resistor. The 400 µA source is weaker – do not expect to drive a relay coil or a high-impedance load directly. If you need open-collector outputs for wired-OR or higher sink current (24 mA), the SN74ALS38BNSR (quad 2-input NAND, open collector) is a functional alternative, though it is a NAND, not a NOR.","metaTitle":"SN74LS02NS NOR Gate IC, 74LS Series, 4-Ch 2-In, 15 ns","metaDescription":"SN74LS02NS 74LS quad 2-input NOR gate, 4.75-5.25 V supply, 15 ns propagation delay, 0-70°C, 14-SOIC. Active, ROHS3 compliant.","metaKeywords":null},"attributes":{"series":"74LS","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Logic ICs"],"specifications":{"Series":"74LS","Package":"Tube","Logic Type":"NOR Gate","Mounting Type":"Surface Mount","Package / Case":"14-SOIC (0.209\\\", 5.30mm Width)","lifecycle_stage":"eol_hot","Number of Inputs":"2","Voltage - Supply":"4.75V ~ 5.25V","Number of Circuits":"4","Operating Temperature":"0°C ~ 70°C (TA)","Input Logic Level - Low":"0.8V","Supplier Device Package":"14-SO","Input Logic Level - High":"2V","Current - Output High, Low":"400µA, 16mA","Max Propagation Delay @ V, Max CL":"15ns @ 5V, 15pF"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.36","priceTiers":[{"qty":1,"price":"$1.36000","currency":"USD"},{"qty":10,"price":"$1.21300","currency":"USD"},{"qty":25,"price":"$1.15160","currency":"USD"},{"qty":100,"price":"$0.94590","currency":"USD"},{"qty":250,"price":"$0.88424","currency":"USD"},{"qty":500,"price":"$0.78144","currency":"USD"},{"qty":1000,"price":"$0.61692","currency":"USD"},{"qty":2500,"price":"$0.58200","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/48e461938616a5549478f06c51295986.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/SN74LS02NS/alternatives.json"},"ai":{"faq":[{"question":"What is the pinout of SN74LS02NS?","answer":"Standard 14-pin SOIC pinout for a quad 2-input NOR gate: pins 1-3, 4-6, 8-10, 11-13 are the four gates (inputs A/B, output Y); pin 7 is GND; pin 14 is VCC. Refer to the SN74LS02NS datasheet for the exact diagram."},{"question":"Is SN74LS02NS RoHS compliant?","answer":"Yes, the SN74LS02NS is ROHS3 compliant per the lifecycle record."},{"question":"What is the SN74LS02NS equivalent or cross reference?","answer":"There is no single pin-for-pin drop-in equivalent across all parameters. The SN74ALS38BNSR is a quad 2-input NAND with open-collector outputs (different logic function, higher sink current). The SN74F27NSR is a triple 3-input NOR with faster 5 ns delay but different pinout and fewer gates. For a direct NOR replacement, stick with the SN74LS02NS or a same-series 74LS02 variant in the same package."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/SN74LS02NS","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/SN74LS02NS 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}}