49FCT805CTQG

Overview

The Renesas 49FCT805CTQG is a dual clock driver and buffer within the 49FCT family, designed for high-speed signal distribution. It features a 1:5 multiplication factor per channel, providing five outputs for each of its two independent inputs. The device supports CMOS and LVTTL input and output logic levels, operating on a single 4.75V to 5.25V power supply. It is housed in a 20-SSOP package with a width of 5.30mm. The component is rated for commercial temperature ranges from 0°C to +70°C and is currently identified as obsolete by the manufacturer.

Feature Summary

• Dual-channel architecture with 1:5 fan-out ratio per channel
• Supports CMOS and LVTTL input/output voltage levels
• Operates at maximum frequencies up to 166 MHz
• Available in a 20-SSOP surface-mount package

Applications

• High-speed clock distribution networks
• Buffering TTL and CMOS logic signals
• System timing synchronization circuits

Part Context

This component belongs to the 49FCT series of fast CMOS clock drivers. It serves as a legacy solution for systems requiring low-skew clock buffering. The specific suffix 'CTQG' denotes the commercial temperature range (0°C to +70°C) and the 20-pin SSOP plastic package format. As an older generation part, it has been superseded by newer families such as the 8L30210 series for new designs.

Replacement Considerations

Public documentation identifies the 8L30210NLGI8 as a similar replacement option. Designers should verify pin compatibility and electrical specifications against the original datasheet before substitution.