{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SN74AC574N","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"SN74AC574N","canonicalUrl":"https://icboms.com/texas-instruments/SN74AC574N","factsUrl":"https://icboms.com/api/mcp/products/SN74AC574N","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments 74AC series D-Type flip-flop, SN74AC574N, 8-bit, positive edge triggered, tri-state non-inverted outputs, 153 MHz clock, 20-DIP through-hole package, tube.","salesMarkdown":"## 153 MHz clock ceiling for bus-register timing The SN74AC574N: The 9.5 ns propagation delay at 5 V, 50 pF load means the data must be stable at the D inputs well before the positive edge — the setup-time window shrinks as the clock rate approaches the 153 MHz ceiling. ## 24 mA drive and tri-state bus control Each of the eight outputs sources or sinks 24 mA — enough to drive a parallel bus line or a bank of LEDs without a buffer. The tri-state, non-inverted outputs let multiple devices share a data bus; the output-enable control pulls all outputs to high-impedance, which is the standard pattern for a registered transceiver or address latch on a processor bus. Quiescent current is 4 µA typical, so in a battery-backed panel the part draws negligible standby power when the clock is gated off. ## Industrial temperature and through-hole package The 20-pin DIP (0.300-inch width) with 0.100-inch pitch is a standard through-hole footprint — it sockets into a legacy board or a prototyping breadboard without a carrier. Input capacitance is 4.5 pF per pin, which keeps the bus loading manageable when multiple flip-flops are daisy-chained on the same clock line. The positive-edge trigger type matches the majority of synchronous bus protocols; no inversion on the outputs simplifies the logic trace. ## Active production — sourcing and compliance Supplied in tube packaging, the 20-DIP body is the same footprint used for decades — the date-code laser etch on the top side and the tube label should trace back to TI's assembly site for that week.","metaTitle":"SN74AC574N Texas Instruments D-Type Flip-Flop, 153 MHz","metaDescription":"SN74AC574N D-Type flip-flop, 8-bit, 153 MHz clock, 24 mA output, 2-6 V supply, -40 to 85 °C, 20-DIP. Active production, RoHS3. Sourced per RFQ.","metaKeywords":null},"attributes":{"series":"74AC","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Microcontrollers & Processors (MCU / MPU / DSP)"],"specifications":{"Type":"D-Type","Series":"74AC","Package":"Tube","Function":"Standard","Output Type":"Tri-State, Non-Inverted","Trigger Type":"Positive Edge","Mounting Type":"Through Hole","Package / Case":"20-DIP (0.300\\\", 7.62mm)","Clock Frequency":"153 MHz","lifecycle_stage":"eol_hot","Voltage - Supply":"2V ~ 6V","Input Capacitance":"4.5 pF","Number of Elements":"1","Operating Temperature":"-40°C ~ 85°C (TA)","Supplier Device Package":"20-PDIP","Current - Quiescent (Iq)":"4 µA","Current - Output High, Low":"24mA, 24mA","Number of Bits per Element":"8","Max Propagation Delay @ V, Max CL":"9.5ns @ 5V, 50pF"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.1","priceTiers":[{"qty":1,"price":"$1.10000","currency":"USD"},{"qty":10,"price":"$0.98200","currency":"USD"},{"qty":25,"price":"$0.93200","currency":"USD"},{"qty":100,"price":"$0.76550","currency":"USD"},{"qty":250,"price":"$0.71560","currency":"USD"},{"qty":500,"price":"$0.63240","currency":"USD"},{"qty":1000,"price":"$0.49926","currency":"USD"},{"qty":2500,"price":"$0.47100","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/42a92c01edc7b7762b42152400effa1c.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/SN74AC574N/alternatives.json"},"ai":{"faq":[{"question":"Will SN74AC574N drop into a board specified around SN74LS378N without rewiring?","answer":"No. The SN74LS378N is a 6-bit flip-flop in a 16-pin DIP, while the SN74AC574N is 8-bit in a 20-pin DIP. The pinout, bit width, and supply voltage range (4.75 V min for LS vs 2 V min for AC) differ — a board spin or adapter is required."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/SN74AC574N","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/SN74AC574N 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}}