49FCT3805AQGI8

Overview

The 49FCT3805AQGI8 is a dual 1-to-5 clock driver manufactured by Renesas Electronics. It operates within a supply voltage range of 3V to 3.6V and utilizes LVCMOS input and output logic levels. The device features two independent driver banks, each providing a 1:5 fanout with individual output enable controls. Designed for high-speed clock distribution, it incorporates low capacitance inputs to maintain signal integrity and minimize skew. The component is housed in a QSOP-20 package and supports surface-mount installation.

Feature Summary

• Dual 1-to-5 fanout clock driver architecture
• LVCMOS compatible input and output signals
• Independent output enable control per driver bank
• Low input capacitance for reduced loading effects

Applications

• High-speed clock distribution networks
• Address bus distribution requiring low skew
• Point-to-point transmission line driving
• PLL driving applications with diagnostic monitoring

Procurement Notes

Verify the specific suffix 'Q' against official Renesas documentation to confirm qualification status and temperature grade. Confirm package dimensions match the QSOP-20 specification. Ensure compatibility with existing board layout constraints for the 20-pin form factor before procurement.

Selection Notes

Select this component when dual independent clock buffers are required with 1:5 fanout capability. The LVCMOS interface suits systems operating between 3V and 3.6V. Consider the QSOP-20 package if space constraints align with its footprint. Verify that the low input capacitance meets the source driver requirements for the target application speed.

Part Context

This part belongs to the 49FCT series of high-performance clock drivers. It shares functional similarities with variants like the 49FCT3805APYGI8 and 49FCT3805ASOGI8, differing primarily in package type (QSOP vs SSOP/SOIC) and potentially qualification grades indicated by the suffix. The core functionality remains consistent across the family.

Replacement Considerations

Direct substitutes include other 49FCT3805 variants such as IDT49FCT3805APYGI8 or PI49FCT32805QE, provided pinouts and electrical specifications match. Verify package compatibility when swapping between QSOP, SSOP, and SOIC versions.