{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SN74AHC273NSR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"SN74AHC273NSR","canonicalUrl":"https://icboms.com/texas-instruments/SN74AHC273NSR","factsUrl":"https://icboms.com/api/mcp/products/SN74AHC273NSR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments 74AHC series D-Type flip-flop, SN74AHC273NSR, 8-bit, positive edge triggered, master reset, non-inverted output, 20-SOIC package, 2V to 5.5V supply, 110 MHz clock, -40°C to 125°C.","salesMarkdown":"## Eight-bit register with master reset — 110 MHz edge rate Rated for 110 MHz clock frequency, this part handles high-speed data-path applications like address latching, status-register buffering, or pipeline stages in FPGA-glue logic and microcontroller expansion buses. The supply range spans 2 V to 5.5 V, so it interfaces directly with both logic families without external level shifters. Operating temperature covers -40°C to 125°C, qualifying it for industrial environments: outdoor telecom cabinets, motor-drive control boards, engine-bay electronics, and factory-automation I/O modules. ## 110 MHz clock — bus margin against slower logic At 110 MHz, the SN74AHC273NSR provides a clock-speed advantage over the SN74LS175NS (40 MHz) and the SN74LS378N (40 MHz) from the 74LS series. Propagation delay is 11 ns at 5 V with a 50 pF load — tight enough for back-to-back registered transfers without dead cycles. The 74F174PC (80 MHz, 10 ns) comes closer in speed but lacks the wide supply range and industrial temperature rating. ## Active production — no LTB clock ticking The part is ROHS3 compliant, so it passes EU material-restriction checks without an exemption review. Because the 74AHC family remains a standard-logic workhorse, second-source availability from other manufacturers is typical for this function. ## Output drive and static draw — what they mean for the BOM Each output sinks or sources 8 mA (I_OH / I_OL), which is enough to drive a standard CMOS logic input, an LED indicator through a series resistor, or a low-power relay driver with external transistor gain. Quiescent current is 4 µA typical. In battery-backed or always-on sections, that draw is negligible. Input capacitance of 2.5 pF keeps the clock-line loading light, which helps maintain signal integrity on a multi-drop bus running at 110 MHz.","metaTitle":"SN74AHC273NSR D-Type Flip-Flop, 110 MHz, 20-SOIC","metaDescription":"TI SN74AHC273NSR D-Type flip-flop with master reset, 8-bit, 110 MHz clock, 2V-5.5V supply, -40°C to 125°C. Active production.","metaKeywords":null},"attributes":{"series":"74AHC","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["DC-DC Power Modules"],"specifications":{"Type":"D-Type","Series":"74AHC","Package":"Tape & Reel (TR); Cut Tape (CT)","Function":"Master Reset","Output Type":"Non-Inverted","Trigger Type":"Positive Edge","Mounting Type":"Surface Mount","Package / Case":"20-SOIC (0.209\\\", 5.30mm Width)","Clock Frequency":"110 MHz","lifecycle_stage":"eol_hot","Voltage - Supply":"2V ~ 5.5V","Input Capacitance":"2.5 pF","Number of Elements":"1","Operating Temperature":"-40°C ~ 125°C (TA)","Supplier Device Package":"20-SO","Current - Quiescent (Iq)":"4 µA","Current - Output High, Low":"8mA, 8mA","Number of Bits per Element":"8","Max Propagation Delay @ V, Max CL":"11ns @ 5V, 50pF"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.76","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$0.76000","currency":"USD"},{"qty":10,"price":"$0.66800","currency":"USD"},{"qty":25,"price":"$0.62760","currency":"USD"},{"qty":100,"price":"$0.51220","currency":"USD"},{"qty":250,"price":"$0.47580","currency":"USD"},{"qty":500,"price":"$0.40492","currency":"USD"},{"qty":1000,"price":"$0.32394","currency":"USD"},{"qty":2000,"price":"$0.29357","currency":"USD"},{"qty":6000,"price":"$0.28650","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/2bcecdd7150d31ad3375988eb6d70b3c.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the difference between SN74AHC273NSR and SN74HC273NSR?","answer":"The AHC (Advanced High-Speed CMOS) variant typically offers higher clock frequency and lower propagation delay than the HC (High-Speed CMOS) version at the same supply voltage, while maintaining pin compatibility. The AHC part's 110 MHz clock and 11 ns propagation delay at 5 V / 50 pF are faster than the HC equivalent's typical 50–60 MHz and 15–20 ns under the same conditions."},{"question":"What is the footprint of SN74AHC273NSR?","answer":"The SN74AHC273NSR is supplied in a 20-SOIC package (0.209\" body width, 5.30 mm), surface-mount. The supplier device package is 20-SO. The specific land pattern is defined in TI's package drawing for the D (SOIC-20) case code."},{"question":"What is SN74AHC273NSR's listed type and series?","answer":"The device type is D-Type flip-flop, and the series is 74AHC (Advanced High-Speed CMOS). It contains one element with eight bits per element, a master-reset function, non-inverted outputs, and positive-edge triggering."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/SN74AHC273NSR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/SN74AHC273NSR 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}}