{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SN74LVC646APW","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"SN74LVC646APW","canonicalUrl":"https://icboms.com/texas-instruments/SN74LVC646APW","factsUrl":"https://icboms.com/api/mcp/products/SN74LVC646APW","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments 74LVC series, SN74LVC646APW, 8-bit non-inverting transceiver with 3-state outputs, 1.65V–3.6V supply, 24mA output drive, -40°C to 85°C, surface-mount 24-TSSOP package.","salesMarkdown":"## 8-bit transceiver for mixed-voltage buses The 24 mA symmetric output drive at both high and low (24mA, 24mA) is enough to drive short PCB traces and lightly loaded buses directly, saving the cost and board area of external buffers. ## Supply voltage and bus compatibility The 1.65V to 3.6V supply range means this part can sit on a 3.3V backplane and still talk to a 1.8V FPGA bank without a dedicated translator — the transceiver's inputs and outputs track the supply rail. At 3.3V the 24 mA drive gives clean edges on short stubs; at 1.8V the drive current is lower but still adequate for point-to-point links under a few inches. If your bus has more than a handful of loads, budget a derating check at the lower supply corner. ## Package and board integration Housed in a 24-TSSOP package with a 4.40mm body width (0.173\"), it fits a standard 0.65mm-pitch TSSOP-24 footprint. The 3-state outputs let you share the bus with other transceivers or a microcontroller without contention; the output-enable control (not detailed here) is typically active-low per the 74LVC convention. ## Lifecycle and compliance It is ROHS3 compliant, meeting the current EU exemption-free standard, so it ships into global markets without restriction. For new designs, there is no LTB risk; the part is available through the standard TI distribution channel and independent supply.","metaTitle":"SN74LVC646APW 74LVC 8-bit Transceiver, 1.65V–3.6V, 24-TSSOP","metaDescription":"Texas Instruments SN74LVC646APW 8-bit non-inverting transceiver with 3-state outputs. Supply 1.65V–3.6V, 24mA drive, -40°C to 85°C.","metaKeywords":null},"attributes":{"series":"74LVC","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Logic ICs"],"specifications":{"Series":"74LVC","Package":"Tube","Logic Type":"Transceiver, Non-Inverting","Output Type":"3-State","Mounting Type":"Surface Mount","Package / Case":"24-TSSOP (0.173\\\", 4.40mm Width)","lifecycle_stage":"eol_hot","Voltage - Supply":"1.65V ~ 3.6V","Number of Elements":"1","Operating Temperature":"-40°C ~ 85°C (TA)","Supplier Device Package":"24-TSSOP","Current - Output High, Low":"24mA, 24mA","Number of Bits per Element":"8"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.88","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$1.88000","currency":"USD"},{"qty":10,"price":"$1.68500","currency":"USD"},{"qty":25,"price":"$1.59000","currency":"USD"},{"qty":100,"price":"$1.35470","currency":"USD"},{"qty":250,"price":"$1.27200","currency":"USD"},{"qty":500,"price":"$1.11300","currency":"USD"},{"qty":1000,"price":"$0.92220","currency":"USD"},{"qty":2500,"price":"$0.90000","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/b92ab2bc397eb5732a3a57eb7c193665.pdf","sourceUrl":null},"ai":{"faq":[{"question":"How many bits per element does SN74LVC646APW have?","answer":"It has 8 bits per element, with a single element (one 8-bit transceiver) in the package."},{"question":"Is SN74LVC646APW RoHS compliant?","answer":"Yes, it is ROHS3 compliant."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/SN74LVC646APW","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/SN74LVC646APW when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-17T19:50:00.618Z","lastPublished":"2026-07-17T19:50:00.618Z","indexable":true}}