{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SN74F245DBR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"SN74F245DBR","canonicalUrl":"https://icboms.com/texas-instruments/SN74F245DBR","factsUrl":"https://icboms.com/api/mcp/products/SN74F245DBR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments 74F series SN74F245DBR octal bus transceiver, non-inverting, 3-state outputs, 20-SSOP package, 4.5V to 5.5V supply, 0°C to 70°C.","salesMarkdown":"## Octal bus transceiver for 5V backplane and memory-mapped I/O The Texas Instruments SN74F245DBR is an octal (8-bit) bidirectional bus transceiver from the 74F family, designed for asynchronous two-way data flow between a data bus and a peripheral bus. Its non-inverting logic and 3-state outputs let multiple devices share a common bus without contention — a standard building block for 5V backplanes, memory-mapped I/O, and microcontroller port expansion in commercial-temperature equipment. ## Supply rail and drive strength — the fit decisions If your board runs 3.3V I/O, this transceiver will not switch cleanly — the 74F family is a 5V-only logic family. The output drive is specified as two sets: 3mA source / 24mA sink, and 15mA source / 64mA sink. The higher figure applies when the output is driving a heavily loaded bus line; the lower figure is the rating when the device is in a lighter fan-out configuration. For a 5V backplane with multiple loads, budget for the 64mA sink capability to maintain signal integrity. It belongs in office equipment, test instruments, and indoor industrial controllers — not in an engine bay, outdoor telecom cabinet, or cold warehouse. If your BOM requires -40°C operation, you need a 74ACT or 74LVC variant with industrial temperature range. Housed in a 20-pin SSOP (0.209\" body width, 5.30mm), the SN74F245DBR uses a fine-pitch surface-mount footprint. Verify your PCB land pattern matches the SSOP-20 footprint — it is narrower than a standard SOIC-20 and will not fit a SOIC pad layout. The 74F series is mature but still supported for legacy 5V designs.","metaTitle":"SN74F245DBR 74F Transceiver, 20-SSOP, 4.5V-5.5V","metaDescription":"Texas Instruments SN74F245DBR 74F octal bus transceiver, non-inverting, 3-state outputs. 20-SSOP package, 4.5V to 5.5V supply. Active, ROHS3 compliant.","metaKeywords":null},"attributes":{"series":"74F","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Logic ICs"],"specifications":{"Series":"74F","Package":"Tape & Reel (TR); Cut Tape (CT)","Logic Type":"Transceiver, Non-Inverting","Output Type":"3-State","Mounting Type":"Surface Mount","Package / Case":"20-SSOP (0.209\\\", 5.30mm Width)","lifecycle_stage":"eol_hot","Voltage - Supply":"4.5V ~ 5.5V","Number of Elements":"1","Operating Temperature":"0°C ~ 70°C (TA)","Supplier Device Package":"20-SSOP","Current - Output High, Low":"3mA, 24mA; 15mA, 64mA","Number of Bits per Element":"8"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.3","priceTiers":[{"qty":1,"price":"$1.30000","currency":"USD"},{"qty":10,"price":"$1.16000","currency":"USD"},{"qty":25,"price":"$1.10120","currency":"USD"},{"qty":100,"price":"$0.90450","currency":"USD"},{"qty":250,"price":"$0.84552","currency":"USD"},{"qty":500,"price":"$0.74720","currency":"USD"},{"qty":1000,"price":"$0.58989","currency":"USD"},{"qty":2000,"price":"$0.55650","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/3579e669006a39d52043815a713cf2ec.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/SN74F245DBR/alternatives.json"},"ai":{"faq":[{"question":"Is SN74F245DBR equivalent to 74F245?","answer":"Yes, the SN74F245DBR is a specific ordering code within the 74F245 function. The 74F245 is the generic octal bus transceiver; the SN prefix is Texas Instruments' standard prefix, and the DBR suffix specifies the 20-pin SSOP package in Tape & Reel. Functionally it is the same 8-bit non-inverting transceiver with 3-state outputs."},{"question":"Is SN74F245DBR RoHS compliant?","answer":"Yes, it is listed as ROHS3 Compliant."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/SN74F245DBR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/SN74F245DBR 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}}