{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"DM7474N","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"DM7474N","canonicalUrl":"https://icboms.com/texas-instruments/DM7474N","factsUrl":"https://icboms.com/api/mcp/products/DM7474N","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments 7400 series D-type flip-flop, DM7474N, dual 1-bit, positive edge triggered, complementary outputs, Set and Reset, 15 MHz clock, 14-DIP through-hole, 4.75-5.25 V supply.","salesMarkdown":"## What this dual flip-flop does on your board The DM7474N is a dual D-type flip-flop from the 7400 series, packing two independent positive-edge-triggered flip-flops with complementary outputs and separate Set (Preset) and Reset pins per element. Each flip-flop samples the D input on the rising clock edge and holds that state until the next clock — the Set and Reset override the clock, letting you force the output high or low without waiting for a clock edge. Rated for a 15 MHz maximum clock frequency with a 40 ns propagation delay at 5 V into a 15 pF load — fast enough for TTL-level glue logic in 8-bit bus interfaces, state machines, and debounce circuits. ## Supply rails, drive strength, and quiescent draw Quiescent current is 30 mA typical, meaning the flip-flop pair draws about 15 mA per element when idle — budget this into the 5 V rail's total current, especially on a multi-chip board. Output high current is 400 µA, output low sinks 16 mA — the high-side drive is weak, so driving a LED or relay coil directly from the Q output needs a pull-up or a buffer; the low-side sink is strong enough for TTL fan-out to ten standard loads. ## Through-hole package and rework bench reality Housed in a 14-pin DIP (0.300-inch, 7.62 mm pitch) with through-hole mounting — the supplier device package is 14-PDIP. This is a rework-friendly package: the 0.100-inch pin spacing gives plenty of room for a desoldering iron or solder wick, and the plastic body survives a 260 °C wave-solder profile without moisture sensitivity issues — no bake-out required before hand rework. Pin 1 is clearly marked by a notch at the top end of the DIP body — orientation is unambiguous under a magnifier, so a technician can drop it into a socket or solder it in without cross-wiring. ## Temperature grade and where it runs Not specified for -40 °C or 85 °C — if the board lives in an unheated enclosure or under a vehicle dash, step up to a 74LS or 74HC variant with the wider temperature range. RoHS non-compliant per the manufacturer — the lead finish on the DIP pins is likely tin-lead solder, which is fine for legacy builds and rework but may trigger a waiver if the final product must meet RoHS 3/2015/863. ## How it compares to the 74LS175 quad flip-flop The DM7474N gives you two flip-flops per DIP with separate Set/Reset per element; the 74LS175 packs four flip-flops with a common Master Reset and no individual Set — the choice depends on whether you need per-bit override or density. They are not pin-compatible: the DM7474N is 14-DIP through-hole, the 74LS175NS is 16-pin SOIC surface-mount — swapping one for the other requires a board layout change.","metaTitle":"Texas Instruments DM7474N D-Type Flip-Flop, 15 MHz, 14-DIP","metaDescription":"DM7474N dual D-type flip-flop from TI, 15 MHz clock, 40ns propagation delay, 4.75-5.25V supply, 14-DIP. Active production, RoHS non-compliant. Sourced to order.","metaKeywords":null},"attributes":{"series":"7400","packageCase":null,"mountingType":null,"rohsStatus":"RoHS non-compliant","productStatus":"Active","categoryPath":["Memory (DRAM / SRAM / Flash / EEPROM)"],"specifications":{"Type":"D-Type","Series":"7400","Package":"Bulk","Function":"Set(Preset) and Reset","Output Type":"Complementary","Trigger Type":"Positive Edge","Mounting Type":"Through Hole","Package / Case":"14-DIP (0.300\\\", 7.62mm)","Clock Frequency":"15 MHz","lifecycle_stage":"eol_hot","Voltage - Supply":"4.75V ~ 5.25V","Number of Elements":"2","Operating Temperature":"0°C ~ 70°C (TA)","Supplier Device Package":"14-PDIP","Current - Quiescent (Iq)":"30 mA","Current - Output High, Low":"400µA, 16mA","Number of Bits per Element":"1","Max Propagation Delay @ V, Max CL":"40ns @ 5V, 15pF"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.25","stockQuantity":28,"priceTiers":[{"qty":1202,"price":"$0.25000","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/880d3a5a2439f217b4fe16ffb427e973.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is DM7474N's listed type and series?","answer":"It is a D-type flip-flop from the 7400 series, dual 1-bit with complementary outputs and positive edge triggering."},{"question":"Will DM7474N drop into a board designed for SN74LS175NS?","answer":"No — the DM7474N is a 14-pin through-hole DIP, while the SN74LS175NS is a 16-pin surface-mount SOIC. The pinout and footprint are different, so a board spin or adapter is required."},{"question":"What compliance documentation does Texas Instruments provide for DM7474N?","answer":"The manufacturer lists it as RoHS non-compliant."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/DM7474N","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/DM7474N 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}}