{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LMK61A2-312M50SIAT","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LMK61A2-312M50SIAT","canonicalUrl":"https://icboms.com/texas-instruments/LMK61A2-312M50SIAT","factsUrl":"https://icboms.com/api/mcp/products/LMK61A2-312M50SIAT","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments LMK61A2 series clock oscillator, LMK61A2-312M50SIAT, 312.5 MHz, 3.135V~3.465V, 152 mA, 6-SMD Module (6-QFM 7x5), -40°C~85°C.","salesMarkdown":"## 312.5 MHz fixed-frequency XO for SerDes reference clocks The LMK61A2-312M50SIAT is a fixed-frequency clock oscillator from Texas Instruments' LMK61A2 family, delivering a 312.5 MHz output from a 6-SMD module (6-QFM, 7x5 mm footprint). This frequency aligns with the standard reference clock for 10 GbE and 25 GbE SerDes PLLs, making it a direct drop-in for Ethernet PHY and FPGA transceiver reference designs. Operating from a 3.135 V to 3.465 V supply rail, it draws 152 mA typical. ## Supply and temperature envelope for board-level integration The supply voltage tolerance of ±5% around the nominal 3.3 V rail means this oscillator can share a common 3.3 V plane with other digital logic without requiring a dedicated LDO. The 152 mA supply current is the total drawn from that rail — budget this into the power tree alongside the FPGA core and I/O rails. The 6-QFM package (7x5 mm) has an exposed thermal pad on the bottom. For reliable heat transfer into the PCB, the layout should include a thermal via array under the pad connected to an internal ground plane. The part is surface-mount and reflow-compatible with standard lead-free profiles.","metaTitle":"TI LMK61A2-312M50SIAT Clock Oscillator, 312.5 MHz","metaDescription":"Texas Instruments LMK61A2-312M50SIAT clock oscillator, 312.5 MHz, 3.135V~3.465V, -40°C~85°C, 6-QFM. Active production, sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Clock & Timing ICs"],"specifications":{"Mfr":"Texas Instruments","Type":"Clock Oscillator","Count":"-","Series":"-","Package":"Tape & Reel (TR); Cut Tape (CT)","Frequency":"312.5MHz","Mounting Type":"Surface Mount","Package / Case":"6-SMD Module","Product Status":"Active","lifecycle_stage":"eol_hot","Current - Supply":"152 mA","Voltage - Supply":"3.135V ~ 3.465V","Base Product Number":"LMK61A2","Operating Temperature":"-40°C~85°C","Supplier Device Package":"6-QFM (7x5)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$11.3400","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/4f79d073177f07fede4fe798bc432227.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LMK61A2-312M50SIAT/alternatives.json"},"ai":{"faq":[{"question":"What is the output frequency and supply voltage for this oscillator?","answer":"The LMK61A2-312M50SIAT outputs a fixed 312.5 MHz clock and operates from a 3.135 V to 3.465 V supply, drawing 152 mA typical."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LMK61A2-312M50SIAT","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/LMK61A2-312M50SIAT 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}}