{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SN74HC109DR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"SN74HC109DR","canonicalUrl":"https://icboms.com/texas-instruments/SN74HC109DR","factsUrl":"https://icboms.com/api/mcp/products/SN74HC109DR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments 74HC series SN74HC109DR, JK Type, Positive Edge, Complementary, 2V ~ 6V, 60 MHz, 16-SOIC, -40°C ~ 85°C.","salesMarkdown":"## 60 MHz JK flip-flop — what it means for the board The SN74HC109DR is a dual JK flip-flop from TI's 74HC family, each element providing set (preset) and reset inputs with complementary outputs on a positive-edge clock. The 60 MHz clock frequency sets the maximum toggle rate for synchronous counters, shift registers, or state machines — enough for most 8-bit microcontroller bus interfaces and moderate-speed control logic. The 30 ns propagation delay at 6 V and 50 pF load gives a rough timing budget for daisy-chained stages. ## Supply and temperature — where it lives Runs from 2 V to 6 V, so it sits comfortably on either a 3.3 V or 5 V rail without a regulator or level shifter. The -40°C to 85°C industrial temperature range means it is rated for outdoor telecom cabinets, factory-floor PLCs, and engine-bay-adjacent electronics — not just an office printer. Quiescent current is 4 µA typical, so it won't drain a battery-backed domain. ## Package and footprint Housed in a 16-pin SOIC (3.90 mm width), surface-mount only. The supplier device package is 16-SOIC, so the PCB footprint matches standard SOIC-16 land patterns. ## Lifecycle and sourcing reality TI lists the SN74HC109DR as Active with ROHS3 compliance. For a BOM line that needs a dual JK flip-flop in SOIC-16, this part is a straightforward fit.","metaTitle":"SN74HC109DR Dual JK Flip-Flop, 60 MHz, 16-SOIC, Active","metaDescription":"TI SN74HC109DR dual JK flip-flop with set/reset, complementary outputs, 60 MHz clock, 2V–6V supply, -40°C to 85°C.","metaKeywords":null},"attributes":{"series":"74HC","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["DC-DC Power Modules"],"specifications":{"Type":"JK Type","Series":"74HC","Package":"Tape & Reel (TR); Cut Tape (CT)","Function":"Set(Preset) and Reset","Output Type":"Complementary","Trigger Type":"Positive Edge","Mounting Type":"Surface Mount","Package / Case":"16-SOIC (0.154\\\", 3.90mm Width)","Clock Frequency":"60 MHz","lifecycle_stage":"eol_hot","Voltage - Supply":"2V ~ 6V","Input Capacitance":"3 pF","Number of Elements":"2","Operating Temperature":"-40°C ~ 85°C (TA)","Supplier Device Package":"16-SOIC","Current - Quiescent (Iq)":"4 µA","Current - Output High, Low":"5.2mA, 5.2mA","Number of Bits per Element":"1","Max Propagation Delay @ V, Max CL":"30ns @ 6V, 50pF"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.56","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$0.56000","currency":"USD"},{"qty":10,"price":"$0.47700","currency":"USD"},{"qty":25,"price":"$0.44520","currency":"USD"},{"qty":100,"price":"$0.35620","currency":"USD"},{"qty":250,"price":"$0.33072","currency":"USD"},{"qty":500,"price":"$0.27984","currency":"USD"},{"qty":1000,"price":"$0.21624","currency":"USD"},{"qty":2500,"price":"$0.19716","currency":"USD"},{"qty":5000,"price":"$0.18444","currency":"USD"},{"qty":12500,"price":"$0.18000","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/6bfb7d0d5ff9a93ca1a16391a777396a.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What are the alternatives to SN74HC109DR?","answer":"The SN74LS175NS is a different logic family (74LS) with a 40 MHz clock, 4-bit D-type configuration, and 0°C to 70°C temperature range — not a direct pin-for-pin swap. The DM7474N is a through-hole D-type with 15 MHz clock and commercial temperature range. Neither is a drop-in replacement for the SN74HC109DR's JK function, wide supply, and industrial temperature range."},{"question":"Does SN74HC109DR come in tape and reel?","answer":"Yes. The DR suffix indicates Tape & Reel packaging. Cut Tape is also listed as an option."},{"question":"Can SN74HC109DR be used in 5V systems?","answer":"Yes. The supply range is 2 V to 6 V, so 5 V operation is within spec. The 5.2 mA output current at both high and low levels is typical for 74HC driving standard CMOS or TTL loads."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/SN74HC109DR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/SN74HC109DR 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}}