CD74FCT244ATE

Overview

The CD74FCT244ATE is an octal buffer and line driver manufactured by Harris Corporation, belonging to the FCT logic series. It features eight non-inverting outputs with three-state capability, allowing for effective bus management in digital systems. The device operates within a supply voltage range of 4.75 V to 5.25 V and supports a wide operating temperature range from -40 °C to +85 °C. Designed for high-speed applications, it exhibits a propagation delay of approximately 4.6 ns at 5 V. The component utilizes CMOS technology and is housed in a 20-pin Small Outline package.

Feature Summary

• Provides eight non-inverting buffered outputs with three-state control for efficient bus interfacing
• Features low static power consumption characteristic of CMOS technology
• Incorporates Schmitt-trigger inputs on address lines to improve noise immunity during transitions

Applications

• Clock buffering and distribution in high-speed digital circuits
• Bus-oriented drivers for data transmission systems
• Memory address drivers and data register output staging

Procurement Notes

Verify the manufacturer origin, as Texas Instruments acquired Harris Semiconductor's logic products. Confirm that the specific suffix denotes the correct package variant and temperature rating. Ensure compliance with current environmental regulations, noting that original Harris parts may not meet modern RoHS standards compared to TI equivalents.

Selection Notes

Select this component when an octal buffer with three-state outputs is required for 5 V logic systems. It serves as a suitable replacement for legacy Harris designs. Consider the CY74FCT244 series from Texas Instruments for modern sourcing, ensuring pin compatibility and electrical specifications match the original design requirements.

Part Context

This part belongs to the FCT (Fast CMOS) family, designed to bridge the performance gap between standard TTL and advanced CMOS technologies. Harris Corporation originally developed this series before its semiconductor division was acquired by Texas Instruments. The CD74 prefix indicates the commercial temperature grade version of the device.