{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"74F109DC","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"74F109DC","canonicalUrl":"https://icboms.com/texas-instruments/74F109DC","factsUrl":"https://icboms.com/api/mcp/products/74F109DC","rawCanonicalId":null},"summary":{"shortDescription":"74F109DC, J-K flip-flop, 74F series, Bulk package, current lifecycle stage, RoHS non-compliant.","salesMarkdown":"## What this J-K flip-flop is and where it fits The 74F109DC is a J-K flip-flop from the 74F family, a high-speed bipolar logic series. It is used in counters, shift registers, and state-machine designs where clocked toggling on the J and K inputs is required. The bulk package means the part ships loose in tubes or trays — typical for hand-assembly, prototyping, or low-volume production runs where tape-and-reel feed is not needed. ## Pinout and function — what the buyer needs to know Dual J-K positive-edge-triggered flip-flop with complementary Q and Q-bar outputs. Pinout: J, K, clock (CP), direct clear (CLR), and direct set (SD) per flip-flop. ## Sourcing note Active status means no last-time-buy scramble. RoHS non-compliance requires tin-lead solder acceptance at assembly.","metaTitle":"74F109DC J-K Flip-Flop, Bulk Package, Active","metaDescription":"74F109DC J-K flip-flop from the 74F family. Bulk package, RoHS non-compliant, active lifecycle. Sourced to order against an RFQ. Confirm fit for your BOM.","metaKeywords":null},"attributes":{"series":"*","packageCase":null,"mountingType":null,"rohsStatus":"RoHS non-compliant","productStatus":"Active","categoryPath":["Memory (DRAM / SRAM / Flash / EEPROM)"],"specifications":{"Series":"*","Package":"Bulk","lifecycle_stage":"eol_hot"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.47","stockQuantity":0,"priceTiers":[{"qty":660,"price":"$0.47000","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/bfcb7b175aa74766c70edcee7601b80a.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the pinout of 74F109DC?","answer":"The 74F109 is a dual J-K flip-flop with positive-edge triggering. The standard 16-pin DIP pinout includes J, K, clock (CP), direct clear (CLR), and direct set (SD) per flip-flop, plus VCC and GND. The 'DC' suffix indicates a ceramic DIP package."},{"question":"What is the difference between 74F109 and 74F109DC?","answer":"The 'DC' suffix identifies the package and finish: a ceramic DIP supplied in bulk. The base 74F109 logic function (dual J-K flip-flop) is identical across all suffix variants; the difference is only the package type and lead finish."},{"question":"What are equivalent ICs for 74F109DC?","answer":"The 74F109DC is a 74F-series dual J-K flip-flop. Functional equivalents include the 74S175PC (quad D flip-flop, different logic) and 74ACT11112N (J-K flip-flop in a different logic family). For a direct pin-compatible replacement, stay within the 74F109 family — the 74F109N (plastic DIP) or 74F109D (SOIC) share the same logic but differ in package and RoHS compliance."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/74F109DC","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/74F109DC 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}}