{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"74HCT244BQ-Q100","brand":"NXP Semiconductors","brandSlug":"nxp","productSlug":"74HCT244BQ-Q100","canonicalUrl":"https://icboms.com/nxp/74HCT244BQ-Q100","factsUrl":"https://icboms.com/api/mcp/products/74HCT244BQ-Q100","rawCanonicalId":null},"summary":{"shortDescription":"Nexperia 74HCT244BQ-Q100, Automotive AEC-Q100, Buffer Non-Inverting, 3-State, 4.5V-5.5V, 6mA per channel, -40°C to 125°C, 20-DHVQFN (4.5x2.5mm) exposed pad.","salesMarkdown":"## Automotive-grade octal buffer for 5V buses The Nexperia 74HCT244BQ-Q100 is an automotive-qualified (AEC-Q100) octal non-inverting buffer with 3-state outputs, designed for 5V nominal supply rails in the 4.5V to 5.5V range. It packs two banks of four buffers each, delivering 6mA source and 6mA sink per output — enough to drive moderate capacitive loads on a CAN transceiver enable, sensor clock line, or address/data bus without an extra line driver. ## What the 6mA drive and 3-state outputs mean for your BOM At 6mA per channel, this buffer isn't a power-stage part — it's sized for logic-level fan-out to CMOS inputs, clock distribution, or bus isolation where the 3-state outputs let multiple peripherals share a common line without contention. The 3-state control (active-low output enable per 4-bit bank) is the feature that makes it a bus buffer rather than just a line driver: pull the enable high and the outputs go high-impedance, so the bus floats clean for another device to drive. If your rail droops during cold-crank, the buffer still holds state down to 4.5V. ## Package and reflow: the DHVQFN exposed pad The 20-DHVQFN (4.5x2.5mm) is a fine-pitch QFN with an exposed center pad. The MSL rating isn't in the listing, so treat it as MSL 1 or 2 by default for a QFN this size; if the reel pouch has been open past the floor-life window, a 48-hour bake at 125°C before reflow is cheap insurance against popcorning. The 0.5mm pitch calls for a stencil aperture that doesn't bridge — a 1:1 pad-to-aperture ratio with a 0.1mm step-down on the center pad works. Check the coplanarity on incoming inspection; a slightly domed QFN can tombstone on one corner if the paste volume is uneven. The -Q100 suffix is the automotive variant — the standard 74HCT244 in a different package won't carry the AEC-Q100 certification, so if your customer or quality system requires automotive-grade parts, this is the one to use.","metaTitle":"74HCT244BQ-Q100 Buffer, Non-Inverting, 3-State, AEC-Q100","metaDescription":"74HCT244BQ-Q100 automotive-grade octal buffer with 3-state outputs, 4.5V-5.5V supply, -40°C to 125°C range, 20-DHVQFN package.","metaKeywords":null},"attributes":{"series":"Automotive, AEC-Q100, 74HCT","packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Logic ICs"],"specifications":{"Series":"Automotive, AEC-Q100, 74HCT","Package":"Bulk","Logic Type":"Buffer, Non-Inverting","Output Type":"3-State","Mounting Type":"Surface Mount","Package / Case":"20-VFQFN Exposed Pad","lifecycle_stage":"eol_hot","Voltage - Supply":"4.5V ~ 5.5V","Number of Elements":"2","Operating Temperature":"-40°C ~ 125°C (TA)","Supplier Device Package":"20-DHVQFN (4.5x2.5)","Current - Output High, Low":"6mA, 6mA","Number of Bits per Element":"4"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.2","stockQuantity":0,"priceTiers":[{"qty":1470,"price":"$0.20000","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/2604223e710b80ea45013793b46c2cbb.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is 74HCT244BQ-Q100 AEC-Q100 qualified?","answer":"Yes. The part belongs to the Automotive, AEC-Q100 series, which means it has passed automotive-grade qualification for stress, reliability, and extended temperature operation."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/nxp/74HCT244BQ-Q100","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/nxp/74HCT244BQ-Q100 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}}