{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SN74LS378D","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"SN74LS378D","canonicalUrl":"https://icboms.com/texas-instruments/SN74LS378D","factsUrl":"https://icboms.com/api/mcp/products/SN74LS378D","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments 74LS series D-Type flip-flop, SN74LS378D, 40 MHz clock frequency, 27ns propagation delay, 16-SOIC surface mount package, tube.","salesMarkdown":"## 16-SOIC footprint and board-fit The SN74LS378D is a single-element, 6-bit D-type flip-flop with positive-edge triggering and non-inverted outputs, housed in a 16-SOIC package (0.154\" width, 3.90 mm body). ## 40 MHz clock and 27 ns propagation delay — what they mean for timing closure The 40 MHz maximum clock frequency sets the upper limit for the data toggle rate. The 27 ns max propagation delay at 5 V and 15 pF load is the time from clock edge to output valid — budget this into the worst-case timing path. At 40 MHz the clock period is 25 ns, so the propagation delay consumes the entire period; the part is usable at that frequency only if the downstream setup time is zero or the clock is stretched. Quiescent current is 22 mA typical; the output drive capability is 400 µA source and 8 mA sink at the rated logic levels. ## Active production and compliance documentation The part is ROHS3 compliant.","metaTitle":"SN74LS378D Texas Instruments D-Type Flip-Flop, 40 MHz","metaDescription":"SN74LS378D D-Type flip-flop, 40 MHz clock, 27ns propagation delay, 4.75-5.25V supply, 16-SOIC. Active production, ROHS3 compliant. Quoted to order.","metaKeywords":null},"attributes":{"series":"74LS","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Analog & Data Acquisition"],"specifications":{"Type":"D-Type","Series":"74LS","Package":"Tube","Function":"Standard","Output Type":"Non-Inverted","Trigger Type":"Positive Edge","Mounting Type":"Surface Mount","Package / Case":"16-SOIC (0.154\\\", 3.90mm Width)","Clock Frequency":"40 MHz","lifecycle_stage":"eol_hot","Voltage - Supply":"4.75V ~ 5.25V","Number of Elements":"1","Operating Temperature":"0°C ~ 70°C (TA)","Supplier Device Package":"16-SOIC","Current - Quiescent (Iq)":"22 mA","Current - Output High, Low":"400µA, 8mA","Number of Bits per Element":"6","Max Propagation Delay @ V, Max CL":"27ns @ 5V, 15pF"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.24","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$2.24000","currency":"USD"},{"qty":10,"price":"$2.01100","currency":"USD"},{"qty":25,"price":"$1.89760","currency":"USD"},{"qty":100,"price":"$1.61660","currency":"USD"},{"qty":250,"price":"$1.51792","currency":"USD"},{"qty":500,"price":"$1.32818","currency":"USD"},{"qty":1000,"price":"$1.10049","currency":"USD"},{"qty":2500,"price":"$1.07400","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/3ad4db1c2cb8f7d36d6e271c4136b996.pdf","sourceUrl":null},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/SN74LS378D","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/SN74LS378D 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}}