CD74FCT244ATQM

Overview

The CD74FCT244ATQM is a CMOS bus driver from the FCT series, manufactured by Harris Corporation. It features two independent functions, each handling four bits of data with true output polarity. The device utilizes a PDSO20 package and operates within a temperature range of -40 °C to 85 °C. It supports a load capacitance of 50 pF and provides three-state outputs controlled by a low-enable signal. Typical VOLP is specified as 1V at VCC = 5V and TA = 25°C.

Feature Summary

• Provides non-inverting buffering for digital signals using CMOS technology.
• Features independent control for two separate four-bit channels.
• Includes three-state outputs to facilitate bus-oriented connections.

Applications

• Bus-oriented systems requiring signal buffering
• Memory address drivers
• Clock drivers

Procurement Notes

Verify the manufacturer origin carefully, as Harris Corporation's logic assets were acquired by Texas Instruments. Confirm that the specific suffix 'QM' corresponds to the intended package variant and ensure compliance with current environmental regulations, as original Harris parts may not meet modern RoHS standards.

Selection Notes

Select this component when a dual-channel, four-bit buffer with three-state capability is required. Ensure the design accommodates the PDSO20 surface-mount package dimensions. Verify that the system voltage aligns with the standard FCT operating range and that the enable logic polarity matches the circuit design.

Part Context

This part belongs to the CD74FCT family of high-speed CMOS logic devices originally produced by Harris Semiconductor. These components are designed for applications requiring fast propagation delays and low power consumption. The FCT series bridges the performance gap between standard TTL and advanced CMOS technologies.