{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SN74HCS165QWBQBRQ1","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"SN74HCS165QWBQBRQ1","canonicalUrl":"https://icboms.com/texas-instruments/SN74HCS165QWBQBRQ1","factsUrl":"https://icboms.com/api/mcp/products/SN74HCS165QWBQBRQ1","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments 74HCS series Automotive-grade shift register, SN74HCS165QWBQBRQ1, 8-bit parallel-load, push-pull output, 2V-6V supply, 16-WQFN package.","salesMarkdown":"## Active production, AEC-Q100 qualified — what that means for a BOM line The SN74HCS165QWBQBRQ1: AEC-Q100 qualification (Grade 1, per the -40°C to +125°C operating range) certifies the device for under-hood and chassis-mounted automotive applications. The 125°C upper limit covers the engine-bay ambient temperature band with margin for self-heating inside the module. ## Supply voltage and temperature — the fit envelope The 2V to 6V supply range spans both 3.3V and 5V logic domains without a separate level translator. This is the same wide-VCC flexibility as the original 74HC family but with the 74HCS series' improved input hysteresis and lower quiescent current. Operating temperature from -40°C to +125°C (TA) means the shift register meets the full automotive temperature profile. The 125°C ceiling is the same as AEC-Q100 Grade 1 — the device is characterized and tested at that limit, not just rated by extrapolation. ## Package and footprint — 16-WQFN with exposed pad Housed in a 16-WFQFN with exposed pad (supplier package designation 16-WQFN 2.5x3.5 mm), the device requires a thermal land on the PCB. The exposed pad is the primary thermal path — the PCB copper area under the pad sets the junction-to-ambient thermal resistance, not the package body. Surface-mount assembly with the 0.50 mm pitch QFN footprint. The small 2.5x3.5 mm body saves board area compared to a 16-SOIC or 16-TSSOP, at the cost of a more demanding solder-paste stencil aperture for the center pad. ## Function and output — parallel-load shift register with push-pull The SN74HCS165QWBQBRQ1 accepts parallel or serial input data and shifts it out serially. The 8-bit parallel load captures a byte-wide bus in one clock cycle — useful for reading DIP switches, keypads, or sensor arrays over a two-wire SPI-like interface. Push-pull outputs eliminate the need for external pull-up resistors on the serial data line. The output drives rail-to-rail, which improves noise margin in the long PCB traces typical of automotive harness connections.","metaTitle":"SN74HCS165QWBQBRQ1 Texas Instruments Shift Register","metaDescription":"Texas Instruments SN74HCS165QWBQBRQ1 8-bit parallel-load shift register. AEC-Q100 qualified, 2V-6V supply, -40°C to +125°C. Active production, sourced to order.","metaKeywords":null},"attributes":{"series":"74HCS","packageCase":null,"mountingType":null,"rohsStatus":"Not applicable","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Grade":"Automotive","Series":"74HCS","Package":"Tape & Reel (TR); Cut Tape (CT)","Function":"Parallel or Serial to Serial","Logic Type":"Shift Register","Output Type":"Push-Pull","Mounting Type":"Surface Mount","Qualification":"AEC-Q100","Package / Case":"16-WFQFN Exposed Pad","lifecycle_stage":"eol_hot","Voltage - Supply":"2V ~ 6V","Number of Elements":"1","Operating Temperature":"-40°C ~ 125°C (TA)","Supplier Device Package":"16-WQFN (2.5x3.5)","Number of Bits per Element":"8"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.79","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$0.79000","currency":"USD"},{"qty":10,"price":"$0.69300","currency":"USD"},{"qty":25,"price":"$0.65120","currency":"USD"},{"qty":100,"price":"$0.53150","currency":"USD"},{"qty":250,"price":"$0.49368","currency":"USD"},{"qty":500,"price":"$0.42016","currency":"USD"},{"qty":1000,"price":"$0.33613","currency":"USD"},{"qty":3000,"price":"$0.30462","currency":"USD"},{"qty":6000,"price":"$0.28361","currency":"USD"},{"qty":15000,"price":"$0.27310","currency":"USD"},{"qty":30000,"price":"$0.26260","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/4a9b233248fe436143ba688e6c1f1837.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What supply voltage does the SN74HCS165QWBQBRQ1 accept?","answer":"The supply range is 2V to 6V, covering both 3.3V and 5V logic families. No external level shifting is needed when interfacing between these domains."},{"question":"What package does this shift register come in?","answer":"It is supplied in a 16-WFQFN with exposed pad, 2.5x3.5 mm body. The exposed pad must be soldered to a PCB thermal land for proper heat dissipation."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/SN74HCS165QWBQBRQ1","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/SN74HCS165QWBQBRQ1 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T19:45:10.375Z","lastPublished":"2026-07-22T19:45:10.375Z","indexable":true}}