{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SN74AHC540PW","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"SN74AHC540PW","canonicalUrl":"https://icboms.com/texas-instruments/SN74AHC540PW","factsUrl":"https://icboms.com/api/mcp/products/SN74AHC540PW","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments 74AHC series SN74AHC540PW, Buffer Inverting, 3-State output, 8-bit, 20-TSSOP, 2V-5.5V supply, -40°C to 125°C, Tube.","salesMarkdown":"## Supply voltage and temperature — mixed-voltage and industrial deployment The SN74AHC540PW: Output drive is 8mA sink and 8mA source — enough to switch a standard logic input or a low-power LED indicator, but not a relay coil. The 3-state outputs let multiple devices share a bus; the OE pin pulls the outputs to high-impedance when asserted. ## 20-TSSOP package — board-fit and reflow considerations Housed in a 20-TSSOP (0.173\", 4.40mm width), the part sits on a 0.65mm pitch — standard for TSSOP, no exotic footprint. The surface-mount body reflows on a standard lead-free profile; the tube packaging means it ships in a rigid anti-static tube, not tape-and-reel, so your pick-and-place feeder needs a tube feeder or you transfer to a tape pocket. ROHS3 compliant — no exemptions for restricted substances; the part passes the European RoHS directive without a compliance gap.","metaTitle":"SN74AHC540PW Texas Instruments 74AHC Buffer, Inverting","metaDescription":"SN74AHC540PW 8-bit inverting buffer with 3-state outputs. 2V-5.5V supply, -40°C to 125°C. Active production, ROHS3. Order against RFQ.","metaKeywords":null},"attributes":{"series":"74AHC","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Series":"74AHC","Package":"Tube","Logic Type":"Buffer, Inverting","Output Type":"3-State","Mounting Type":"Surface Mount","Package / Case":"20-TSSOP (0.173\\\", 4.40mm Width)","lifecycle_stage":"eol_hot","Voltage - Supply":"2V ~ 5.5V","Number of Elements":"1","Operating Temperature":"-40°C ~ 125°C (TA)","Supplier Device Package":"20-TSSOP","Current - Output High, Low":"8mA, 8mA","Number of Bits per Element":"8"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.31","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$1.31000","currency":"USD"},{"qty":10,"price":"$1.16900","currency":"USD"},{"qty":25,"price":"$1.11000","currency":"USD"},{"qty":100,"price":"$0.91180","currency":"USD"},{"qty":250,"price":"$0.85236","currency":"USD"},{"qty":500,"price":"$0.75324","currency":"USD"},{"qty":1000,"price":"$0.59466","currency":"USD"},{"qty":2500,"price":"$0.56100","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/34ac45f20027122b16753fa909ee7c9f.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Where can I buy SN74AHC540PW and get a price?","answer":"Submit a quote request for current pricing and availability — confirmed at quote time, not a published list price."},{"question":"Will SN74AHC540PW drop into a board designed for SN74AHCT540DGVR?","answer":"The SN74AHCT540DGVR is a 4.5V-only variant in a different package (DGVR vs PW). The SN74AHC540PW runs from 2V to 5.5V and is in a 20-TSSOP — the pinout is the same 20-pin inverting buffer function, but verify the supply voltage compatibility and the package footprint before substituting without a board spin."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/SN74AHC540PW","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/SN74AHC540PW 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}}