{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SN74HCS09DR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"SN74HCS09DR","canonicalUrl":"https://icboms.com/texas-instruments/SN74HCS09DR","factsUrl":"https://icboms.com/api/mcp/products/SN74HCS09DR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments 74HCS series quad 2-input AND gate, SN74HCS09DR, Schmitt-trigger inputs, open-drain outputs, 2V–6V supply, -40°C to +125°C, 14-SOIC package, Tape & Reel.","salesMarkdown":"## 14-SOIC quad AND gate with open-drain outputs The SN74HCS09DR is a Texas Instruments 74HCS-series quad 2-input AND gate in a 14-SOIC package (0.154\" body width, 3.90 mm). Each of the four independent gates combines two Schmitt-trigger inputs with an open-drain output — the output pulls low when the AND condition is met and floats high when it is not, which lets multiple gates share a common pull-up or drive a wired-OR bus. The 2 V to 6 V supply range covers both 3.3 V and 5 V logic rails, and the -40°C to +125°C operating temperature matches industrial and automotive under-hood environments where the standard 74HC family's 85°C ceiling would be marginal. ## What the open-drain output and Schmitt inputs mean for the bus The open-drain output sinks 7.8 mA when active (V_OL) and floats to high impedance when the gate is off — it cannot source current. This means the output high level is set entirely by the external pull-up resistor and supply rail, making the part suitable for level translation (e.g., a 5 V gate driving a 3.3 V pull-up domain) or for wired-OR connections where multiple outputs share a single pull-up without contention. The Schmitt-trigger inputs accept slow or noisy edges without oscillation: the low-level threshold ranges from 1 V to 3 V, and the high-level threshold from 1.5 V to 4.2 V, giving typical hysteresis of about 1.2 V at 5 V supply. This cleans up signals from mechanical switches, long PCB traces, or RC-delay networks before the AND logic evaluates them. ## Timing and power budget for the BOM Maximum propagation delay is 11 ns at 6 V supply with a 50 pF load — at 3.3 V the delay is longer (not specified here, but typical for the 74HCS family). For a 10 MHz clock or data path, the 11 ns gate delay plus the open-drain pull-up rise time (set by the RC time constant of the pull-up resistor and load capacitance) must fit within the timing budget. Quiescent current is 2 µA max across the full supply range — the gate draws nearly nothing when the outputs are static. The dynamic current depends on the switching frequency and the load capacitance being charged through the pull-up resistor (the open-drain output only sinks, so the pull-up carries the charge current). ## Active lifecycle and sourcing posture The 14-SOIC package (supplier device package 14-SOIC) is a standard JEDEC outline with 1.27 mm lead pitch — it fits the same footprint as other 14-pin SOIC logic gates, simplifying board layout if a pin-compatible alternative is needed.","metaTitle":"SN74HCS09DR TI 74HCS Quad AND Gate, Open Drain, 14-SOIC","metaDescription":"Texas Instruments SN74HCS09DR quad 2-input AND gate with Schmitt-trigger inputs and open-drain outputs. 2V–6V supply, -40°C to +125°C, 14-SOIC.","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, Open Drain","Logic Type":"AND Gate","Mounting Type":"Surface Mount","Package / Case":"14-SOIC (0.154\\\", 3.90mm Width)","lifecycle_stage":"eol_hot","Number of Inputs":"2","Voltage - Supply":"2V ~ 6V","Number of Circuits":"4","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":"11ns @ 6V, 50pF"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.35","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/82811004af51bfc5e348d51748f3784a.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/SN74HCS09DR/alternatives.json"},"ai":{"faq":[{"question":"What is the SN74HCS09DR used for?","answer":"It is a quad 2-input AND gate with Schmitt-trigger inputs and open-drain outputs. The open-drain outputs allow wired-OR connections, level translation between logic families, and driving shared buses. The Schmitt-trigger inputs debounce slow or noisy signals before the AND logic evaluates them."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/SN74HCS09DR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/SN74HCS09DR 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}}