49FCT3805AQG

Overview

The 49FCT3805AQG is a dual 1-to-5 clock driver manufactured by Renesas Electronics. It operates on a single 3V to 3.6V supply and utilizes advanced CMOS technology for high-speed performance. The device features two independent driver banks, each providing five outputs with individual output enable controls. Designed for critical signal integrity applications, it offers low input capacitance and minimal skew. The component is housed in a 20-pin QSOP package and supports LVCMOS/LVTTL input and output logic levels.

Feature Summary

• Dual 1:5 fanout architecture with independent output enables
• Low input capacitance for reduced loading effects
• Operates within 3V to 3.6V voltage range
• Housed in 20-pin QSOP surface-mount package

Applications

• High-speed clock distribution networks
• Address bus distribution requiring low skew
• Point-to-point transmission line driving
• System diagnostics via heartbeat monitor outputs

Procurement Notes

Verify the specific suffix 'QGI' or similar against the requested model '49FCT3805AQG', as datasheets typically list '49FCT3805QGI8'. Confirm RoHS compliance status and moisture sensitivity level (MSL) prior to ordering. Check for end-of-life notices or product change notifications that may affect long-term availability.

Selection Notes

Select this component when low skew and high signal quality are required for distributing clock signals to multiple receivers. Ensure the design environment supports the 3V to 3.6V operating voltage. Verify that the 20-pin QSOP footprint matches the PCB layout constraints. Consider the 1:5 fanout ratio to determine if additional drivers are needed for larger loads.

Part Context

This part belongs to the 49FCT series of fast CMOS clock drivers. It shares functional similarities with other variants like the 49FCT3805APYGI8 but differs in packaging and specific electrical characteristics. The series is designed for applications demanding precise timing and minimal jitter in digital systems.

Replacement Considerations

Direct substitutes include the 49FCT3805APYGI8 (SSOP-20) and IDT49FCT3805QGI8. Verify pin compatibility and package dimensions before swapping. The 49FCT3805EPYGI is an older variant; confirm if it meets current performance requirements.