SN74ALS244CDWR

Overview

The SN74ALS244CDWR is an octal buffer and line driver from the Texas Instruments 74ALS logic family. It features eight non-inverting inputs with three-state outputs, housed in a 20-pin SOIC package. The device operates within a supply voltage range of 4.75 V to 5.25 V. Key electrical characteristics include a high-level output current of -15 mA and a low-level output current of 48 mA. It draws a maximum static current of 9 mA and has a maximum operating supply current of 17 mA. The component supports an industrial temperature range from 0°C to +70°C.

Feature Summary

• Provides eight non-inverting signal paths for bus interfacing applications
• Features three-state outputs to facilitate direct system bus connections
• Delivers high drive capability suitable for driving multiple loads

Applications

• Memory address drivers
• Clock drivers
• Bus-oriented circuits

Procurement Notes

Verify the specific ordering suffix to confirm package type and environmental compliance. Ensure the supply voltage matches the required 5V logic level. Confirm the temperature grade aligns with the operational environment requirements before finalizing procurement.

Selection Notes

Select this component when high-speed ALS performance is required with moderate power consumption. It serves as a direct replacement for standard 74S244 devices in many designs. Consider the package availability and lead times associated with the CDWR suffix during the design phase.

Part Context

This part belongs to the Texas Instruments 74ALS series, which offers faster switching speeds than standard 74LS logic while consuming less power than 74S logic. The SN74ALS244 variant specifically provides octal buffering capabilities essential for digital system architectures requiring isolated data transmission paths.

Replacement Considerations

Compatible substitutes include SN74ALS244CDWRE4 and SN74ALS244CDWRG4, which maintain identical functional specifications with different environmental or packaging certifications.