{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SN74LS09N","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"SN74LS09N","canonicalUrl":"https://icboms.com/texas-instruments/SN74LS09N","factsUrl":"https://icboms.com/api/mcp/products/SN74LS09N","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments 74LS series, AND Gate, 4 circuits, 2 inputs, Open Collector, Through Hole, 14-DIP (0.300\", 7.62mm), 4.75V ~ 5.25V supply, 0°C ~ 70°C.","salesMarkdown":"## Quad 2-input AND gate with open-collector outputs The SN74LS09N is a quad 2-input AND gate from the 74LS low-power Schottky family, with open-collector outputs that sink up to 8 mA per channel. This means the outputs can be wire-ANDed together or drive loads requiring a higher voltage than the logic supply — a common trick on legacy 5 V bus architectures where multiple gate outputs share a pull-up resistor. Propagation delay is 35 ns max at 5 V and 15 pF load, setting the practical data rate ceiling. For a 5 V logic system clocked at 10 MHz, the gate adds roughly one-third of a cycle of latency — fine for address decoding or control gating, but too slow for high-speed data paths where the 74F series would be a better fit. ## Supply voltage and temperature envelope If your board has drifted or uses a 5 V rail that sags below 4.75 V under load, the gate may not recognise a logic-high input (threshold is 2 V min). This part belongs in a conditioned indoor panel or lab bench, not an engine bay or freezer. The input-low threshold is 0.8 V max, input-high is 2 V min — standard TTL levels that interface cleanly with most 5 V CMOS and bipolar logic families. ## Through-hole DIP for prototyping and repair Housed in a 14-pin DIP with 0.300-inch (7.62 mm) body width, through-hole mount. This is the classic breadboard-friendly package — you can socket it, probe every pin, and swap it in seconds. For a repair bench tech, the scorch mark on a dead board often leads to a shorted output on one of these gates; swapping the DIP is a 30-second job with a desoldering station.","metaTitle":"SN74LS09N Texas Instruments AND Gate, Open Collector, 14-DIP","metaDescription":"SN74LS09N quad 2-input AND gate with open-collector outputs, 8mA sink, 35ns delay at 5V. Active production, RoHS3. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":"74LS","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Microcontrollers & Processors (MCU / MPU / DSP)"],"specifications":{"Series":"74LS","Package":"Tube","Features":"Open Collector","Logic Type":"AND 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":"-, 8mA","Max Propagation Delay @ V, Max CL":"35ns @ 5V, 15pF"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.85","priceTiers":[{"qty":1,"price":"$0.85000","currency":"USD"},{"qty":10,"price":"$0.75200","currency":"USD"},{"qty":25,"price":"$0.70640","currency":"USD"},{"qty":100,"price":"$0.57660","currency":"USD"},{"qty":250,"price":"$0.53556","currency":"USD"},{"qty":500,"price":"$0.45580","currency":"USD"},{"qty":1000,"price":"$0.36464","currency":"USD"},{"qty":2500,"price":"$0.33046","currency":"USD"},{"qty":5000,"price":"$0.32250","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/e3b867429f30ae20dd066d6a95a9d003.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/SN74LS09N/alternatives.json"},"ai":{"faq":[{"question":"Will SN74LS09N drop into a board that was specified around SN74ALS11ANS without rewiring?","answer":"No. The SN74ALS11ANS is a triple 3-input AND gate in a surface-mount package, while the SN74LS09N is a quad 2-input AND gate in a through-hole DIP. The logic function, pinout, and footprint are different — a board spin or adapter is required."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/SN74LS09N","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/SN74LS09N 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}}