{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SN74HC245DBR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"SN74HC245DBR","canonicalUrl":"https://icboms.com/texas-instruments/SN74HC245DBR","factsUrl":"https://icboms.com/api/mcp/products/SN74HC245DBR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments 74HC series SN74HC245DBR, 8-bit non-inverting transceiver, 3-state outputs, 2V to 6V supply, 20-SSOP package, surface mount.","salesMarkdown":"## BOM-fit check — what the 74HC245DBR brings to the bus The SN74HC245DBR is an 8-bit non-inverting transceiver with 3-state outputs from TI's 74HC family — the workhorse bidirectional bus buffer for 5V and 3.3V logic domains that need to push and pull data across a backplane or memory bus without contention. Its 2V to 6V supply range means it can sit on a 3.3V rail and still talk to a 5V peripheral on the other side, as long as the output high level meets the receiving logic threshold — the 7.8mA drive on both high and low sides is enough for a few TTL loads or a short trace, but not a long cable run. Single-element 8-bit configuration keeps the pinout simple: one direction-control pin, one output-enable pin, and the A and B ports — the scorch mark on a dead board usually points to a shorted output pin on the port that was driving a capacitive load without series termination. ## Package reality for the rework bench The 20-SSOP package (0.209-inch body width, 5.30 mm) with 0.65 mm pitch is a standard SOIC footprint variant — hot-air rework at 260°C peak profile per J-STD-020, no prebake needed if the moisture-barrier bag is intact and the floor life hasn't been exceeded. Surface-mount only — no through-hole equivalent in this series; if the board was laid out for a DIP socket, this part needs an adapter or a layout spin. ## Lifecycle and compliance — active, RoHS3, no PCN watch needed The -40°C to 85°C industrial temperature range covers most panel and equipment environments; if the board lives in an engine bay or a freezer, the 125°C-rated SN74LV8T245PWR is the better fit.","metaTitle":"SN74HC245DBR 74HC Transceiver, 3-State, 20-SSOP","metaDescription":"Active TI SN74HC245DBR: 8-bit non-inverting transceiver, 2-6V supply, 7.8mA IOH/IOL, 20-SSOP. RoHS3. Sourced per RFQ.","metaKeywords":null},"attributes":{"series":"74HC","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Memory (DRAM / SRAM / Flash / EEPROM)"],"specifications":{"Series":"74HC","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":"2V ~ 6V","Number of Elements":"1","Operating Temperature":"-40°C ~ 85°C (TA)","Supplier Device Package":"20-SSOP","Current - Output High, Low":"7.8mA, 7.8mA","Number of Bits per Element":"8"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.58","priceTiers":[{"qty":1,"price":"$0.58000","currency":"USD"},{"qty":10,"price":"$0.50100","currency":"USD"},{"qty":25,"price":"$0.46760","currency":"USD"},{"qty":100,"price":"$0.37400","currency":"USD"},{"qty":250,"price":"$0.34724","currency":"USD"},{"qty":500,"price":"$0.29384","currency":"USD"},{"qty":1000,"price":"$0.22705","currency":"USD"},{"qty":2000,"price":"$0.20702","currency":"USD"},{"qty":6000,"price":"$0.19366","currency":"USD"},{"qty":10000,"price":"$0.18900","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/7b1b8ee206232eb99266702967e2d172.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/SN74HC245DBR/alternatives.json"},"ai":{"faq":[{"question":"How does the SN74HC245DBR compare to the SN74LV8T245PWR as a second-source?","answer":"The SN74LV8T245PWR runs on a 1.6V to 5.5V supply and operates from -40°C to 125°C, while the SN74HC245DBR needs 2V to 6V and tops out at 85°C. Both are 8-bit non-inverting transceivers with 3-state outputs in a 20-pin SSOP — the pinout is the same, so the LV8T245 drops into the same board footprint, but the supply voltage and temperature grade differ. For a 5V-only, 85°C max design, the HC part is the original fit; for a mixed-voltage or hotter environment, the LV8T245 is the migration path."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/SN74HC245DBR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/SN74HC245DBR 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}}