{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SN74HCS08QDRQ1","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"SN74HCS08QDRQ1","canonicalUrl":"https://icboms.com/texas-instruments/SN74HCS08QDRQ1","factsUrl":"https://icboms.com/api/mcp/products/SN74HCS08QDRQ1","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments Automotive, AEC-Q100, 74HCS series AND Gate, 4 circuits, 2 inputs, Schmitt Trigger Input, 14-SOIC, Tape & Reel, SN74HCS08QDRQ1.","salesMarkdown":"## Quad AND gate with Schmitt-trigger inputs for noise-immune logic The SN74HCS08QDRQ1 is a quad 2-input AND gate from Texas Instruments' automotive-grade 74HCS family, featuring Schmitt-trigger inputs on all four channels. The 12 ns maximum propagation delay at 6 V with a 50 pF load sets the data-path timing floor. At lower supply voltages the delay increases — expect roughly 20 ns at 3.3 V and 30 ns at 2 V, though the datasheet's full curve is needed for exact derating. The 7.8 mA symmetric output drive (both high and low) is enough to drive one or two standard CMOS loads but not a long bus trace or a 50 Ω backplane without a buffer. Quiescent current is 2 µA maximum — essentially leakage. This gate adds negligible static power to a battery-backed or always-on module, but the dynamic current scales with switching frequency and load capacitance, so a 10 MHz clock tree on all four gates will pull several milliamps from the supply. ## Schmitt-trigger hysteresis — why it matters for real-world signals The Schmitt-trigger inputs have a defined low-level threshold of 1 V to 3 V and a high-level threshold of 1.5 V to 4.2 V. This hysteresis — roughly 0.5 V to 1.2 V depending on supply — rejects noise on slow-rising sensor outputs, switch debounce lines, or clock signals routed near switching converters. ## Package and board-fit: 14-SOIC footprint The 1.27 mm pin pitch is two-layer-board-friendly — no micro-vias or blind vias needed for fan-out. The tape-and-reel packaging suits high-volume pick-and-place assembly; cut-tape quantities are also available for prototypes or repair stock.","metaTitle":"SN74HCS08QDRQ1 Texas Instruments AND Gate, 4-Ch 2-In","metaDescription":"Texas Instruments SN74HCS08QDRQ1 quad 2-input AND gate with Schmitt-trigger inputs. 2-6 V supply, -40 to 125°C, 2 µA quiescent, 12 ns prop delay. Active, ROHS3.","metaKeywords":null},"attributes":{"series":"Automotive, AEC-Q100, 74HCS","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Interface & Transceivers"],"specifications":{"Series":"Automotive, AEC-Q100, 74HCS","Package":"Tape & Reel (TR); Cut Tape (CT)","Features":"Schmitt Trigger Input","Logic Type":"AND Gate","Mounting Type":"Surface Mount","Package / Case":"14-SOIC (0.154\\\", 3.90mm Width)","lifecycle_stage":"eol_hot","Number of Inputs":"2","Voltage - Supply":"2V ~ 6V","Number of Circuits":"4","Operating Temperature":"-40°C ~ 125°C (TA)","Input Logic Level - Low":"1V ~ 3V","Supplier Device Package":"14-SOIC","Input Logic Level - High":"1.5V ~ 4.2V","Current - Quiescent (Max)":"2 µA","Current - Output High, Low":"7.8mA, 7.8mA","Max Propagation Delay @ V, Max CL":"12ns @ 6V, 50pF"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.65","priceTiers":[{"qty":1,"price":"$0.65000","currency":"USD"},{"qty":10,"price":"$0.55300","currency":"USD"},{"qty":25,"price":"$0.51560","currency":"USD"},{"qty":100,"price":"$0.41260","currency":"USD"},{"qty":250,"price":"$0.38308","currency":"USD"},{"qty":500,"price":"$0.32414","currency":"USD"},{"qty":1000,"price":"$0.25048","currency":"USD"},{"qty":2500,"price":"$0.22838","currency":"USD"},{"qty":5000,"price":"$0.21364","currency":"USD"},{"qty":12500,"price":"$0.20850","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/77776d583efb3e0002bcf2bc3226a872.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/SN74HCS08QDRQ1/alternatives.json"},"ai":{"faq":[{"question":"What is the closest functional alternative to SN74HCS08QDRQ1?","answer":"The SN74HCS14QDRQ1 is the same automotive 74HCS family but is a hex inverter — not a direct AND-gate replacement. For a pin-compatible AND gate without Schmitt-trigger inputs, the SN74LV08ADR offers faster propagation delay (7.9 ns at 5 V) but operates from 2 V to 5.5 V and lacks the hysteresis. Neither is a drop-in swap without verifying the logic function and threshold levels."},{"question":"What compliance documentation does Texas Instruments provide for SN74HCS08QDRQ1?","answer":"Texas Instruments provides ROHS3 compliance certification for the SN74HCS08QDRQ1. No UL or IEC documentation is listed in the available records."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/SN74HCS08QDRQ1","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/SN74HCS08QDRQ1 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}}