{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LMK1C1104DQFT","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LMK1C1104DQFT","canonicalUrl":"https://icboms.com/texas-instruments/LMK1C1104DQFT","factsUrl":"https://icboms.com/api/mcp/products/LMK1C1104DQFT","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments LMK1C1104DQFT Clock Buffer, 1:4 fanout, 250 MHz max, LVCMOS I/O, 1.71V–3.465V supply, -40°C to 125°C, 8-WSON (2x2) package.","salesMarkdown":"## 1:4 fanout at 250 MHz — the fanout ceiling for single-ended clock trees The LMK1C1104DQFT is a 1:4 clock buffer from Texas Instruments, accepting a single LVCMOS or clock input and distributing it to four LVCMOS outputs at up to 250 MHz. The non-differential I/O (No/No) limits it to single-ended clock trees — it will not fan out a differential pair like LVDS or HCSL without an external converter. The 250 MHz ceiling is the maximum toggle rate the buffer can pass cleanly; the actual usable frequency in a design depends on the trace length and load capacitance on each output leg, but the buffer itself does not become the bottleneck below that limit. The 8-WSON (2x2 mm) package with an exposed thermal pad requires a PCB land pattern that ties the pad to a ground plane for heat spreading — the datasheet's recommended footprint is the reference. ## Active production — no last-time-buy pressure Because the buffer is a single-supply, non-differential fanout part, it is a common BOM item with multiple second-source equivalents from other vendors — but no pin-compatible TI alternative is listed as a direct successor. The 1:4 ratio and 250 MHz ceiling are the two specs that define the drop-in fit.","metaTitle":"TI LMK1C1104DQFT Clock Buffer, 1:4 Fanout, 250 MHz, 8-WSON","metaDescription":"Texas Instruments LMK1C1104DQFT clock buffer, 1:4 fanout, 250 MHz max, 1.71V–3.465V supply, -40°C to 125°C, 8-WSON. Active, RoHS3. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Clock & Timing ICs"],"specifications":{"Mfr":"Texas Instruments","Type":"Clock Buffer","Input":"Clock, LVCMOS","Output":"Clock, LVCMOS","Series":"-","Package":"Tape & Reel (TR) Cut Tape (CT)","Mounting Type":"Surface Mount","Package / Case":"8-WFDFN","Product Status":"Active","Frequency - Max":"250 MHz","lifecycle_stage":"eol_hot","Voltage - Supply":"1.71V ~ 1.89V, 2.375V ~ 2.625V, 3.135V ~ 3.465V","Number of Circuits":"1","Ratio - Input:Output":"1:4","Operating Temperature":"-40°C ~ 125°C (TA)","Supplier Device Package":"8-WSON (2x2)","Differential - Input:Output":"No/No"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.5200","priceTiers":[{"qty":1,"price":"$2.52000","currency":"USD"},{"qty":10,"price":"$2.26200","currency":"USD"},{"qty":25,"price":"$2.13360","currency":"USD"},{"qty":100,"price":"$1.81780","currency":"USD"},{"qty":250,"price":"$1.70688","currency":"USD"},{"qty":500,"price":"$1.49354","currency":"USD"},{"qty":1250,"price":"$1.23750","currency":"USD"},{"qty":2500,"price":"$1.15216","currency":"USD"},{"qty":6250,"price":"$1.10948","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/0a78a63d85aa7f38e34d2a4797ffdb5a.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LMK1C1104DQFT/alternatives.json"},"ai":{"faq":[{"question":"What is the maximum frequency the LMK1C1104DQFT can buffer?","answer":"The buffer supports a maximum frequency of 250 MHz on the LVCMOS output. This is the ceiling for a single-ended clock tree; the actual usable frequency depends on the load and trace parasitics."},{"question":"Is the LMK1C1104DQFT RoHS compliant?","answer":"Yes, it is RoHS3 compliant per Texas Instruments' lifecycle data."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LMK1C1104DQFT","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/LMK1C1104DQFT 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}}