SN74AC244DWR

Buffers, Drivers, Receivers, Transceivers Overview

The SN74AC244DWR is an octal buffer and line driver manufactured by Texas Instruments, belonging to the AC logic family. It features eight non-inverting inputs and outputs with three-state capability, housed in a 20-pin SOIC package. The device operates within a supply voltage range of 2.0 V to 6.0 V. Key electrical parameters include a maximum propagation delay of 15 ns at 5.0 V, output drive currents of ±24 mA for both high and low states, and a quiescent current of 20 µA. It supports operation across a temperature range of -40°C to +85°C.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Provides eight non-inverting signal paths with independent three-state control for bus-oriented architectures.
• Delivers symmetrical ±24 mA output drive capability to support heavy capacitive loads.
• Operates across a wide 2.0 V to 6.0 V supply voltage range compatible with standard CMOS levels.

Buffers, Drivers, Receivers, Transceivers Applications

• Memory module address and data bus buffering
• Clock distribution and buffering circuits
• Driving capacitive loads in industrial control systems

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific suffix 'DWR' corresponds to the tape-and-reel packaging format required for automated assembly processes. Confirm that the AC logic family specifications meet the system's timing and voltage requirements, as this series differs from ACT or AHC variants. Ensure the SOIC-20 footprint matches the PCB design guidelines.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when an octal buffer with higher speed than HC/HCT families is needed but lower power consumption than ABT is preferred. The AC family offers a balance of speed and drive strength suitable for general-purpose digital interfaces. Consider the 2.0 V minimum supply if interfacing with lower voltage logic domains compared to standard 5 V systems.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the SNx4AC244 family of octal buffers and drivers. It serves as a high-speed alternative to the legacy SN74LS244, offering faster propagation delays while maintaining robust output drive capabilities. The device is designed for applications requiring reliable signal integrity across multiple parallel lines in digital communication systems.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

SN74ACT244DWR: Offers similar functionality with improved switching speeds and noise margins. SN74AHC244DWR: Provides lower power consumption and wider voltage compatibility but may have different drive characteristics. Verify pinout and electrical specifications before substitution.