CD74HC244M

Overview

The CD74HC244M is a high-speed CMOS logic device featuring non-inverting octal buffers and line drivers with three-state outputs. Manufactured by Texas Instruments, it utilizes a 20-pin Small Outline Integrated Circuit (SOIC) package. The component operates within a supply voltage range of 2 V to 6 V and supports an extended industrial temperature range from -55 °C to +125 °C. It provides unidirectional data flow control via two active-low output enable inputs.

Feature Summary

• Octal buffering architecture providing eight independent non-inverting signal paths
• Three-state output capability allowing bus line isolation and controlled driving
• Dual active-low output enables for flexible group selection and control

Applications

• Memory address drivers for data buses
• Clock drivers and buffering
• Bus-oriented communications systems

Procurement Notes

Verify the specific suffix against official documentation to confirm package type and environmental compliance. Ensure the ordering part number matches the required tape-and-reel or tube configuration. Confirm RoHS status and lead-free certification requirements prior to procurement to align with manufacturing standards.

Selection Notes

Select this component when designing circuits requiring high-speed octal buffering with low static power consumption. The wide operating voltage range and extended temperature specifications make it suitable for diverse industrial applications. Verify that the SOIC-20 footprint fits the target PCB layout constraints.

Part Context

This device belongs to the Texas Instruments HC series of high-speed CMOS logic components. It serves as a standard solution for digital signal buffering in microprocessor-based systems. The part is widely used in general-purpose logic applications requiring reliable signal transmission across multiple lines simultaneously.

Replacement Considerations

Compatible alternatives include the SN74HC244MDWREP for military-grade reliability and the CD74HC244E for through-hole DIP packaging requirements.