CD74FCT244ATM

Overview

The CD74FCT244ATM is a bus driver from the FCT series, manufactured by Harris Corporation. It features two functions, each handling four bits with true output polarity. The device utilizes CMOS technology and is housed in a PDSO20 package. It operates within a temperature range of -40 °C to 85 °C. The component has a typical VOLP of 1V at VCC = 5V and TA = 25°C. It supports a load capacitance of 50 pF and provides three-state outputs controlled by an active-low enable signal.

Feature Summary

• Provides bidirectional data buffering with independent control for each direction
• Features three-state outputs for effective bus line management
• Designed for high-capacitance loads and low-impedance backplanes

Applications

• High-capacitance load driving
• Low-impedance backplane interfacing
• Bus driver applications requiring three-state control

Procurement Notes

Verify the manufacturer designation as Harris Corporation or its successors, such as Intersil or Renesas, due to corporate acquisitions. Confirm the package type is PDSO20 and check RoHS compliance status, as original versions may not meet current standards. Ensure the operating temperature range matches the specific application requirements of -40 °C to 85 °C.

Selection Notes

Select this component when a non-inverting bus driver with three-state outputs is required for FCT logic families. It is suitable for systems needing to drive high-capacitance loads. Compare pin compatibility and electrical characteristics with other FCT series drivers if alternative sources are considered.

Part Context

This part belongs to the Harris FCT logic family, designed for fast CMOS technology applications. It serves as a buffer/line driver within the broader category of interface logic ICs. The FCT series is known for compatibility with TTL inputs while offering CMOS performance levels.

Replacement Considerations

Check for equivalents from Intersil or Renesas, which acquired Harris Semiconductor's logic business. Verify pinout and electrical specifications against other 74FCT244 variants before substitution.