{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SN74LS244DWR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"SN74LS244DWR","canonicalUrl":"https://icboms.com/texas-instruments/SN74LS244DWR","factsUrl":"https://icboms.com/api/mcp/products/SN74LS244DWR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments 74LS series, SN74LS244DWR, Buffer Non-Inverting, 3-State output, 4.75V~5.25V supply, 2 elements x 4 bits, 15mA/24mA output, 0°C~70°C, 20-SOIC surface mount.","salesMarkdown":"## What this 74LS octal buffer does on your board The Texas Instruments SN74LS244DWR is a non-inverting octal buffer with 3-state outputs, built on the 74LS low-power Schottky TTL logic family. The 3-state control lets you float the outputs when another device owns the bus. ## 5 V only — no mixed-voltage tricks Don't try to feed it 3.3 V — it won't switch properly, and the TTL input thresholds expect a 5 V environment. If your design has moved to 3.3 V or lower, you need a different logic family like the 74LVTH or 74LVC series. ## Temperature grade: indoor and office duty It belongs in benchtop instruments, office peripherals, consumer electronics, and telecom equipment inside a climate-controlled rack. The 74LS family has been in production for decades, and TI continues to support it. The wide-body SOIC footprint is standard for 20-pin buffers — no surprises for the pick-and-place programmer.","metaTitle":"SN74LS244DWR 74LS Buffer, Non-Inverting 3-State, 20-SOIC, 5V","metaDescription":"Texas Instruments SN74LS244DWR is a 74LS octal buffer with 3-state outputs, 4.75V–5.25V supply, 0°C to 70°C.","metaKeywords":null},"attributes":{"series":"74LS","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Logic ICs"],"specifications":{"Series":"74LS","Package":"Tape & Reel (TR); Cut Tape (CT)","Logic Type":"Buffer, Non-Inverting","Output Type":"3-State","Mounting Type":"Surface Mount","Package / Case":"20-SOIC (0.295\\\", 7.50mm Width)","lifecycle_stage":"eol_hot","Voltage - Supply":"4.75V ~ 5.25V","Number of Elements":"2","Operating Temperature":"0°C ~ 70°C (TA)","Supplier Device Package":"20-SOIC","Current - Output High, Low":"15mA, 24mA","Number of Bits per Element":"4"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.05","priceTiers":[{"qty":1,"price":"$1.05000","currency":"USD"},{"qty":10,"price":"$0.93800","currency":"USD"},{"qty":25,"price":"$0.89040","currency":"USD"},{"qty":100,"price":"$0.73140","currency":"USD"},{"qty":250,"price":"$0.68368","currency":"USD"},{"qty":500,"price":"$0.60420","currency":"USD"},{"qty":1000,"price":"$0.47700","currency":"USD"},{"qty":2000,"price":"$0.45000","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/074334bac5ff5b7cfbf08ab2c6ab03e9.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/SN74LS244DWR/alternatives.json"},"ai":{"faq":[{"question":"Is SN74LS244DWR compatible with 5V TTL logic?","answer":"Yes. The 74LS family is designed for 5 V TTL logic. Input thresholds are TTL-compatible, and the 3-state outputs drive standard TTL loads with 15 mA source / 24 mA sink capability."},{"question":"What is the equivalent of SN74LS244DWR?","answer":"A pin-compatible functional equivalent within the same 74LS family is the SN74LS645-1N, but that is a transceiver (bidirectional), not a buffer, and comes in a through-hole package. For a closer match in function and package, the SN74ABT2245DW is a surface-mount transceiver with higher drive (32 mA), but it runs from 4.5 V minimum and has a wider temperature range. Neither is a drop-in replacement — verify the direction control and pinout against your board."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/SN74LS244DWR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/SN74LS244DWR 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}}