{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"49FCT3805DPYGI","brand":"Renesas Electronics","brandSlug":"renesas","productSlug":"49FCT3805DPYGI","canonicalUrl":"https://icboms.com/renesas/49FCT3805DPYGI","factsUrl":"https://icboms.com/api/mcp/products/49FCT3805DPYGI","rawCanonicalId":null},"summary":{"shortDescription":"Renesas 49FCT3805DPYGI, Fanout Buffer (Distribution), 2 circuits, 1:5 ratio, 166 MHz max, CMOS/LVTTL I/O, 3V–3.6V supply, -40°C–85°C, 20-SSOP.","salesMarkdown":"## What this 1:5 fanout buffer does on the board The Renesas 49FCT3805DPYGI is a non-inverting clock buffer that takes one CMOS or LVTTL input and distributes it to five outputs per bank, with two independent banks on-chip. It is a straight fanout buffer — no PLL, no jitter cleaning, no internal termination — just clean single-ended clock or signal replication rated up to 166 MHz. The 1:5 ratio per circuit means a single oscillator or clock source can feed five loads without extra external buffers, saving board area and routing complexity. ## Supply and logic compatibility — 3.3 V systems The 3 V to 3.6 V supply range maps directly onto a 3.3 V rail with margin for regulation tolerance. Input and output levels are CMOS and LVTTL, so this buffer mates cleanly with 3.3 V FPGAs, ASICs, and microcontrollers without level translation. ## Temperature grade and deployment environment Rated for -40°C to 85°C, the industrial temperature range covers outdoor telecom cabinets, factory-floor PLCs, motor drives, and base-station line cards. Not qualified for automotive under-hood (no AEC-Q100 cited), but fine for cabin or controlled industrial enclosures. ## Package and footprint Housed in a 20-SSOP (5.30 mm body width, 0.209\" pitch), the package is a standard surface-mount footprint shared across many Renesas 49FCT-series clock buffers. The supplier device package is 20-SSOP; the shipping medium is Tube, not Tape & Reel — factor that into pick-and-place setup if you are running a reel-fed line. ## Lifecycle and sourcing posture The 49FCT3805DPYGI carries an Active product status with ROHS3 compliance. No NRND flag, no last-time-buy notice — it remains a current-production part. For BOM planning, this means no imminent obsolescence risk.","metaTitle":"49FCT3805DPYGI Fanout Buffer (Distribution), 166 MHz","metaDescription":"Renesas 49FCT3805DPYGI fanout buffer, 1:5 ratio, 166 MHz max, 3V–3.6V supply, -40°C to 85°C, 20-SSOP. Active, ROHS3.","metaKeywords":null},"attributes":{"series":"49FCT","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Clock & Timing ICs"],"specifications":{"Type":"Fanout Buffer (Distribution)","Input":"CMOS, LVTTL","Output":"CMOS, LVTTL","Series":"49FCT","Package":"Tube","Mounting Type":"Surface Mount","Package / Case":"20-SSOP (0.209\\\", 5.30mm Width)","Frequency - Max":"166 MHz","lifecycle_stage":"eol_hot","Voltage - Supply":"3V ~ 3.6V","Number of Circuits":"2","Ratio - Input:Output":"1:5","Operating Temperature":"-40°C ~ 85°C","Supplier Device Package":"20-SSOP","Differential - Input:Output":"No/No"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$3.35","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$3.35000","currency":"USD"},{"qty":10,"price":"$3.00500","currency":"USD"},{"qty":25,"price":"$2.84080","currency":"USD"},{"qty":100,"price":"$2.46190","currency":"USD"},{"qty":250,"price":"$2.33564","currency":"USD"},{"qty":500,"price":"$2.09576","currency":"USD"},{"qty":1000,"price":"$1.76750","currency":"USD"},{"qty":2500,"price":"$1.67912","currency":"USD"},{"qty":5000,"price":"$1.61600","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/371be8f54b4a763d88708ce272598e01.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is 49FCT3805DPYGI compatible with 3.3V logic?","answer":"Yes. The supply voltage range is 3 V to 3.6 V, and both input and output are CMOS/LVTTL — it is designed for 3.3 V single-ended clock distribution."},{"question":"What is the closest functional alternative to the 49FCT3805DPYGI?","answer":"The 8SLVP2108ANLGI/W is a dual-bank fanout buffer but uses differential LVPECL I/O and a 2.375 V supply — not a pin-compatible or logic-compatible substitute. For single-ended LVCMOS fanout, the 5PB1104CMGK/W is a 1:4 buffer with a 1.71 V supply and extended temperature range to 105°C, but it is a single-circuit device. Neither is a direct drop-in; the 49FCT3805DPYGI fills a specific 3.3 V, 1:5, dual-bank, non-differential niche."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/renesas/49FCT3805DPYGI","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/renesas/49FCT3805DPYGI 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}}