CD74FCT2244TQM

Overview

The CD74FCT2244TQM is an octal buffer and line driver manufactured by Harris Corporation. It belongs to the FCT logic series and utilizes BiCMOS technology. The device features eight non-inverting outputs with three-state capability, housed in a 20-pin QSOP package. It operates within a supply voltage range of 4.75V to 5.25V and supports an operating temperature range from -40°C to +85°C.

Feature Summary

• Provides eight non-inverting signal paths for bus driving applications
• Integrates three-state output control for efficient bus management
• Utilizes BiCMOS technology for high-speed performance

Applications

• Bus-oriented memory and address drivers
• Clock drivers and buffer circuits
• High-performance register banks

Procurement Notes

Verify the manufacturer origin, as Harris Corporation's logic assets were acquired by Intersil and subsequently Renesas. Confirm that the specific marking corresponds to the original Harris production run or its direct successor lineage. Ensure the QSOP-20 package dimensions match the design requirements. Check RoHS compliance status, as older Harris parts may not meet current environmental standards.

Selection Notes

Select this component when an octal non-inverting buffer with three-state outputs is required for 5V systems. The FCT series offers speed comparable to LS TTL but with CMOS power consumption. Ensure the application voltage stays within the 4.75V to 5.25V range. Consider the thermal characteristics of the QSOP package if multiple units are used in dense layouts.

Part Context

This part is part of the CD74FCT2xxx series of high-speed BiCMOS logic devices. It serves as a buffer/line driver variant within the FCT family, which was designed to bridge the gap between standard CMOS and TTL performance levels. The TQM suffix indicates the specific tape-and-reel packaging and QSOP form factor.

Replacement Considerations

Check for equivalents such as the CY74FCT2244TQCT from Texas Instruments, which shares similar functional specifications and pinout. Verify compatibility with Intersil/Renesas versions like the ISL74FCT2244. Ensure electrical parameters like output drive strength and propagation delay are sufficient for the target application.