IDT49FCT3805DPYGI

The Renesas Electronics IDT49FCT3805DPYGI is a 3.3V CMOS dual 1-to-5 clock driver and buffer from the 49FCT3805/A family, engineered for low-skew distribution of high-speed clock and synchronization signals in digital systems. This device provides two independent banks of five non-inverting outputs with 3-state control, operating from a nominal 3.3V supply and featuring TTL-compatible inputs that enable seamless interfacing with lower-voltage logic families. Built on the Fast CMOS Technology (FCT) platform, the driver exhibits minimal propagation delay and channel-to-channel output skew—typically in the sub-nanosecond range—while delivering balanced ±24 mA output drive to maintain signal integrity across heavily loaded nets. The SSOP-20 surface-mount package conserves board space, and the specified operating temperature range of -40 °C to +85 °C (industrial grade) ensures reliable performance in thermally demanding environments.

Typical applications include telecommunications base stations, networking switches, server backplanes, industrial controllers, and automated test equipment. The dual 1-to-5 architecture is frequently deployed to create redundant clock trees or to distribute system clocks to FPGAs, ASICs, and memory interfaces. From a supply-chain standpoint, this is a mature standard-logic product now maintained by Renesas following its acquisition of IDT. Although not an actively promoted new design, the industrial temperature grade and continued availability support long-lifecycle industrial, aerospace, and defense systems requiring COTS components. Buyers should validate ongoing production status and account for potential end-of-life transitions when planning bill-of-material longevity, and procurement through authorized distribution with rigorous anti-counterfeit measures is strongly advised to ensure device authenticity and traceability.