{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SN74HCS21DR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"SN74HCS21DR","canonicalUrl":"https://icboms.com/texas-instruments/SN74HCS21DR","factsUrl":"https://icboms.com/api/mcp/products/SN74HCS21DR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments 74HCS series, AND Gate, 2 Circuits, 4 Inputs, Schmitt Trigger Input, 2V to 6V supply, -40°C to 125°C, 14-SOIC surface mount package, Tape & Reel.","salesMarkdown":"## Dual 4-input AND gate with Schmitt-trigger inputs The SN74HCS21DR is a dual 4-input AND gate from the 74HCS series with Schmitt-trigger inputs. Supply range is 2V to 6V, operating temperature -40°C to 125°C, quiescent current 2 µA max, propagation delay 16 ns at 6V with 50 pF load. ## Active and available — no LTB risk The SN74HCS21DR carries an Active lifecycle status from Texas Instruments. ## Package and mounting Surface-mount in a 14-SOIC package (0.154\" body width, 3.90 mm). The supplier device package is 14-SOIC, which is the standard SOIC-14 footprint. No special handling beyond standard SMD reflow profiles.","metaTitle":"SN74HCS21DR TI AND Gate, Schmitt Trigger Input, 14-SOIC","metaDescription":"TI SN74HCS21DR dual 4-input AND gate with Schmitt-trigger inputs. 2V to 6V supply, -40°C to 125°C, 14-SOIC. Active part, available to order.","metaKeywords":null},"attributes":{"series":"74HCS","packageCase":null,"mountingType":null,"rohsStatus":"Not applicable","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Series":"74HCS","Package":"Tape & Reel (TR); Cut Tape (CT)","Features":"Schmitt Trigger Input","Logic Type":"AND Gate","Mounting Type":"Surface Mount","Package / Case":"14-SOIC (0.154\\\", 3.90mm Width)","lifecycle_stage":"eol_hot","Number of Inputs":"4","Voltage - Supply":"2V ~ 6V","Number of Circuits":"2","Operating Temperature":"-40°C ~ 125°C","Input Logic Level - Low":"1V ~ 3V","Supplier Device Package":"14-SOIC","Input Logic Level - High":"1.5V ~ 4.2V","Current - Quiescent (Max)":"2 µA","Current - Output High, Low":"-, 7.8mA","Max Propagation Delay @ V, Max CL":"16ns @ 6V, 50pF"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.35","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$0.35000","currency":"USD"},{"qty":10,"price":"$0.28500","currency":"USD"},{"qty":25,"price":"$0.26040","currency":"USD"},{"qty":100,"price":"$0.19390","currency":"USD"},{"qty":250,"price":"$0.17576","currency":"USD"},{"qty":500,"price":"$0.14544","currency":"USD"},{"qty":1000,"price":"$0.10908","currency":"USD"},{"qty":2500,"price":"$0.09999","currency":"USD"},{"qty":5000,"price":"$0.09393","currency":"USD"},{"qty":12500,"price":"$0.08787","currency":"USD"},{"qty":25000,"price":"$0.08060","currency":"USD"},{"qty":62500,"price":"$0.07757","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/a9564eebec35a0544354217048316fa7.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the difference between SN74HCS21DR and SN74HC21DR?","answer":"The SN74HCS21DR adds Schmitt-trigger inputs and extends the operating temperature range to 125°C, while the SN74HC21DR lacks Schmitt-trigger inputs and is rated only to 85°C. Both are dual 4-input AND gates in the same 14-SOIC footprint and share the same 2V to 6V supply range. The HCS version also has a lower quiescent current (2 µA max vs 8 µA typical for HC)."},{"question":"Is SN74HCS21DR available in tape and reel?","answer":"Yes, the SN74HCS21DR is offered in Tape & Reel (TR) and Cut Tape (CT) packaging options, as indicated by the 'DR' suffix in the order code."},{"question":"Is SN74HCS21DR a Schmitt trigger?","answer":"Yes, the SN74HCS21DR has Schmitt-trigger inputs on all four inputs per gate, providing hysteresis for noise rejection and slow-edge conditioning."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/SN74HCS21DR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/SN74HCS21DR 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}}