PI49FCT805ATQ

Clock Buffers, Drivers Overview

The PI49FCT805ATQ is a non-inverting clock driver from the FCT series, manufactured by Diodes Incorporated (formerly Pericom). It features two independent banks of drivers, each providing five outputs from a standard TTL-compatible CMOS input. The device operates within an industrial temperature range of -40°C to +85°C and supports a supply voltage of 4.75V to 5.25V. Key electrical characteristics include extremely low output skew of 0.5ns typical, propagation delay ranging from 1.5ns to 5.8ns at CL=50pF, and hysteresis on all inputs. The 'A' suffix denotes a specific speed grade, while 'Q' indicates a 20-pin QSOP package.

Clock Buffers, Drivers Feature Summary

• Two independent driver banks with five outputs each (1:5 ratio per bank)
• Extremely low output skew of 0.5ns typical
• TTL input and CMOS output compatibility with input hysteresis
• Monitor output pin for status tracking

Clock Buffers, Drivers Applications

• Clock distribution in synchronous systems
• High-speed data bus buffering
• Industrial control systems requiring wide temperature operation

Clock Buffers, Drivers Procurement Notes

Verify the manufacturer source, as the component was originally produced by Pericom Semiconductor Corporation before acquisition by Diodes Incorporated. Confirm that the ordering suffix 'E' (Pb-free & Green) is included if environmental compliance is required, although it is not explicitly present in the provided model number. Ensure the QSOP package type matches the design footprint requirements.

Clock Buffers, Drivers Selection Notes

Select this component when low skew and high-speed clock distribution are critical. The 'A' speed grade offers a maximum propagation delay of 5.8ns, suitable for frequencies up to 100MHz. Compare against other speed grades (B, C) if tighter timing constraints exist. Ensure the 20-pin QSOP package fits the PCB layout, noting its 150-mil width.

Clock Buffers, Drivers Part Context

This part belongs to the PI49FCT805T family of fast CMOS clock drivers. The base model PI49FCT805T includes variants with different speed grades and packaging options. The PI49FCT2805T variant exists with an integrated 25-ohm resistor for noise reduction, but the PI49FCT805ATQ does not feature this internal resistor.

Clock Buffers, Drivers Replacement Considerations

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