IDT49FCT3805EPYI8

Clock Buffers, Drivers Overview

The IDT49FCT3805EPYI8 is a 3.3V CMOS dual 1-to-5 clock driver manufactured by Renesas Electronics Corporation (formerly IDT). It features two independent output banks, each providing a 1:5 fanout with dedicated 3-state control via OEA and OEB inputs. The device includes a 'heartbeat' monitor output (MON) for diagnostics and PLL driving. Built using advanced CMOS technology, it supports operating frequencies up to 166MHz with guaranteed low skew of less than 200ps and propagation delay under 2.5ns. It operates within an industrial temperature range of -40°C to +85°C and accepts TTL-compatible inputs.

Clock Buffers, Drivers Feature Summary

• Dual 1-to-5 clock driver configuration with independent 3-state output enable controls
• Operating frequency up to 166MHz with maximum propagation delay of 2.5ns
• Guaranteed low skew of less than 200ps (same device output pin to pin)
• Includes 'heartbeat' monitor output identical to other outputs for diagnostics

Clock Buffers, Drivers Applications

• High-speed clock distribution systems requiring critical signal quality
• Address distribution where one signal must be distributed to multiple receivers
• Single point-to-point transmission line driving applications
• PLL driving and system diagnostics via heartbeat monitoring

Clock Buffers, Drivers Procurement Notes

Verify the manufacturer status as Renesas Electronics Corporation, noting the historical IDT branding. Confirm the package type corresponds to the Shrink Small Outline IC (SSOP) variant indicated by the 'PY' suffix in the ordering information. Ensure the component meets the industrial temperature range requirements (-40°C to +85°C) specified for the 'E' speed grade.

Clock Buffers, Drivers Selection Notes

Select the IDT49FCT3805EPYI8 when low skew and high signal integrity are required for distributing clock signals to multiple loads. The 'E' suffix indicates the industrial temperature grade capable of supporting frequencies up to 166MHz. Compare against the 'D' grade if lower performance thresholds or different temperature ranges are acceptable. Ensure input voltage levels are compatible with 3.3V or 5V components due to TTL compatibility.

Clock Buffers, Drivers Part Context

This component belongs to the FCT3805 series of 3.3V CMOS clock drivers. The part number structure identifies the device type (3805), speed grade (E for Industrial/166MHz), package (PY for SSOP), and process (I for Industrial temperature range). It is designed for applications demanding precise timing and low jitter characteristics in digital systems.

Clock Buffers, Drivers Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.