49FCT3805BSOG8

Overview

The Renesas 49FCT3805BSOG8 is a dual 1-to-5 clock driver and buffer built using advanced CMOS technology. It operates within a supply voltage range of 3V to 3.6V and supports input signals compatible with CMOS and LVTTL standards. The device features two independent driver banks, each providing a 1:5 fanout ratio with dedicated output enable controls. Designed for high-speed clock distribution, it ensures low skew and high signal quality. The component is housed in a 20-SOIC package and functions within an operating temperature range of -40°C to +85°C.

Feature Summary

• Dual 1:5 fanout clock drivers with independent output enable control per bank
• CMOS/LVTTL input and output compatibility for versatile interface integration
• Integrated "heartbeat" monitor output (MON) for diagnostics and PLL driving
• Low capacitance inputs with hysteresis to support high-speed transmission lines

Applications

• High-speed clock distribution networks requiring low skew
• Address distribution systems involving single point-to-point transmission line driving
• PLL driving applications utilizing the diagnostic heartbeat monitor
• Systems requiring simultaneous distribution of two different input frequencies to multiple receivers

Procurement Notes

Verify the specific suffix 'SOG8' against official Renesas documentation to confirm pinout and electrical characteristics, as variations exist within the 49FCT3805 family. Confirm RoHS compliance status and check for End-of-Life notifications or Product Change Notices prior to procurement, as this component series has undergone discontinuance actions.

Selection Notes

Select the 49FCT3805BSOG8 when dual independent clock domains with 1:5 fanout are required. Ensure the design utilizes 3.3V logic levels compatible with CMOS or LVTTL inputs. This part is suitable for designs needing on-chip diagnostics via the MON pin. Verify that the 20-SOIC package dimensions fit the PCB layout constraints.

Part Context

This component belongs to the 49FCT3805 series of clock buffers and drivers. It shares functional similarities with variants such as the 49FCT3805ASOGI8 and 49FCT3805EPYGI, differing primarily in packaging and specific manufacturing lot codes. The 'B' suffix typically denotes a specific revision or binning within the Renesas IDT product lineage.

Replacement Considerations

Official manufacturer-recommended replacements include the 5PB1106PGGI. Designers should verify that the substitute meets the specific 1:5 fanout and 3.3V operation requirements of the original design.