{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SN74AC240QPWRG4Q1","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"SN74AC240QPWRG4Q1","canonicalUrl":"https://icboms.com/texas-instruments/SN74AC240QPWRG4Q1","factsUrl":"https://icboms.com/api/mcp/products/SN74AC240QPWRG4Q1","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments SN74AC240QPWRG4Q1, Automotive AEC-Q100 74AC series, dual 4-bit inverting buffer with 3-state outputs, 2V–6V supply, 24mA output drive, -40°C to 125°C, 20-TSSOP package.","salesMarkdown":"## What this TI buffer does on the bus The Texas Instruments SN74AC240QPWRG4Q1 is a dual 4-bit inverting buffer with 3-state outputs, part of the 74AC family qualified to AEC-Q100 for automotive use. It sits between a microcontroller or ASIC and a shared data bus, inverting the signal while providing enough drive to fan out to multiple loads. The 3-state outputs let you isolate the bus when the buffer is disabled — useful in multiplexed address/data lines or shared peripheral buses where only one driver talks at a time. ## Supply range and temperature — what they mean for fit The 2V to 6V supply range covers 3.3V and 5V logic rails without a level translator, and the -40°C to 125°C operating temperature matches the under-hood and chassis-domain requirements for automotive ECUs. The 24mA source and sink capability at both output states gives enough margin to drive a 5V CMOS bus or a bank of optocoupler inputs without external buffers. ## Package and footprint reality 20-pin TSSOP with 0.173-inch body width and 4.40mm pitch — standard footprint that matches many existing 20-pin TSSOP buffer layouts. Surface-mount only; no through-hole variant in this series. ## Lifecycle and compliance The AEC-Q100 qualification means it has passed the stress tests for automotive-grade reliability — thermal cycling, humidity bias, and latch-up immunity — which also makes it a safe choice for industrial or outdoor telecom where extended temperature and vibration are the norm.","metaTitle":"SN74AC240QPWRG4Q1 Buffer, Inverting 3-State 20-TSSOP","metaDescription":"TI SN74AC240QPWRG4Q1 dual 4-bit inverting buffer with 3-state outputs, 2V–6V supply, 24mA drive, -40°C to 125°C, AEC-Q100, 20-TSSOP. Active, ROHS3.","metaKeywords":null},"attributes":{"series":"Automotive, AEC-Q100, 74AC","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Analog & Data Acquisition"],"specifications":{"Series":"Automotive, AEC-Q100, 74AC","Package":"Tape & Reel (TR); Cut Tape (CT)","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 ~ 6V","Number of Elements":"2","Operating Temperature":"-40°C ~ 125°C (TA)","Supplier Device Package":"20-TSSOP","Current - Output High, Low":"24mA, 24mA","Number of Bits per Element":"4"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.95","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$0.95000","currency":"USD"},{"qty":10,"price":"$0.84700","currency":"USD"},{"qty":25,"price":"$0.80440","currency":"USD"},{"qty":100,"price":"$0.66070","currency":"USD"},{"qty":250,"price":"$0.61760","currency":"USD"},{"qty":500,"price":"$0.54580","currency":"USD"},{"qty":1000,"price":"$0.43089","currency":"USD"},{"qty":2000,"price":"$0.40650","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/0127a2e8e512dc4f0ac479c94aaf74a0.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Can I use SN74AC240QPWRG4Q1 as a replacement for SN74AC240PWR?","answer":"The SN74AC240QPWRG4Q1 is the automotive-qualified (AEC-Q100) variant of the standard SN74AC240PWR. Electrical specs are identical — same 2V–6V supply, same 24mA drive, same 20-TSSOP footprint. The Q-suffix part adds the -40°C to 125°C temperature range and automotive reliability testing. It is a drop-in replacement for the commercial-grade part in any design that needs the wider temperature range or AEC-Q100 certification."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/SN74AC240QPWRG4Q1","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/SN74AC240QPWRG4Q1 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}}