{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"ASE-7.3728MHZ-LR-T","brand":"Abracon LLC","brandSlug":"abracon-llc","productSlug":"ASE-7.3728MHZ-LR-T","canonicalUrl":"https://icboms.com/abracon-llc/ASE-7.3728MHZ-LR-T","factsUrl":"https://icboms.com/api/mcp/products/ASE-7.3728MHZ-LR-T","rawCanonicalId":null},"summary":{"shortDescription":"Abracon ASE Series XO (Standard), CMOS output, 7.3728 MHz, 3.3 V supply, ±25ppm, -40°C to 85°C, 4-SMD package, Enable/Disable function, Tape & Reel.","salesMarkdown":"## Active XO at 7.3728 MHz — the serial-communications timing sweet spot The ASE-7.3728MHZ-LR-T: The 7.3728 MHz frequency is not arbitrary — it divides cleanly into standard UART baud rates and is a common secondary crystal frequency in MSP430, PIC, and AVR-based designs that need fractional baud division without a PLL stage. This is a standard CMOS XO, not a MEMS oscillator, built around a crystal resonator as the base element. ## 3.3 V supply drops directly onto the 3.3 V rail The 3.3 V nominal supply matches the I/O voltage of most embedded MCUs and SoCs in this performance class — no additional LDO stage is required, and the CMOS output swings rail-to-rail at the host logic level. In active mode the oscillator draws up to 7 mA; when disabled, draw drops to 10 µA maximum, so a host MCU can gate the supply in deep-sleep states without wasting the 7 mA idle current. ## ±25ppm frequency stability — adequate for UART and embedded control For UART at 9600–115200 baud this is well within the ±1.5% tolerance most UART receivers accept without framing errors. It is not tight enough for USB or precision real-time clock references, but it sits comfortably inside the window for general embedded timing, sensor sampling clocks, and motor-control PWM carrier frequencies. ## Compact 4-SMD no-lead package for pick-and-place assembly The no-lead (QFN-style) terminations mean the thermal profile is benign for reflow assembly; hand-soldering with a hot-air tool is feasible given the pad size, though paste stenciling is the standard production approach. Supplied on tape and reel for high-volume SMT pick-and-place.","metaTitle":"Abracon ASE-7.3728MHZ-LR-T XO Oscillator, 7.3728 MHz, CMOS","metaDescription":"Abracon ASE Series XO oscillator, 7.3728 MHz CMOS output, 3.3 V supply, ±25ppm stability, -40°C to 85°C, active production. Sourced to order via RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Crystals & Oscillators"],"specifications":{"Mfr":"Abracon LLC","Type":"XO (Standard)","Output":"CMOS","Series":"ASE","Package":"Tape & Reel (TR)","Ratings":"-","Function":"Enable/Disable","Frequency":"7.3728 MHz","Mounting Type":"Surface Mount","Base Resonator":"Crystal","Package / Case":"4-SMD, No Lead","Product Status":"Active","lifecycle_stage":"unknown","Size / Dimension":"0.126\\\" L x 0.098\\\" W (3.20mm x 2.50mm)","Voltage - Supply":"3.3V","Frequency Stability":"±25ppm","Height - Seated (Max)":"0.047\\\" (1.20mm)","Operating Temperature":"-40°C~85°C","Current - Supply (Max)":"7mA","Absolute Pull Range (APR)":"-","Current - Supply (Disable) (Max)":"10µA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/3c79e0119ee216eec83c4dc9aea50b71.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is ASE-7.3728MHZ-LR-T's listed type and output?","answer":"The part is classified as an XO (Standard) oscillator with a CMOS output. The base resonator is a crystal, not MEMS — it generates the output frequency from an AT-cut crystal tuned to 7.3728 MHz."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/abracon-llc/ASE-7.3728MHZ-LR-T","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/abracon-llc/ASE-7.3728MHZ-LR-T 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}}