SN74ALS244CDBR

Overview

The SN74ALS244CDBR is an octal buffer and line driver manufactured by Texas Instruments, belonging to the ALS logic family. It features eight non-inverting inputs and outputs with three-state control. The device operates within a supply voltage range of 4.5 V to 5.5 V. Key electrical parameters include a propagation delay of 10 ns at 50 pF load and output drive currents of -8 mA (high) and 8 mA (low). It is housed in a 20-pin SOIC package and supports an operating temperature range from -40°C to +85°C.

Feature Summary

• Provides tri-state output capability for bus-oriented applications
• Organized as two independent four-bit buffers
• Compatible with standard TTL input levels

Applications

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

Procurement Notes

Verify the specific suffix 'DBR' corresponds to the tape-and-reel packaging format on official Texas Instruments documentation. Confirm that the 'C' designation aligns with commercial temperature ratings. Ensure the component matches the required SOIC-20 footprint and pinout configuration before integration into the design.

Selection Notes

Select this component when designing systems requiring high-speed buffering with low power consumption compared to standard LS logic. The ALS series offers a favorable speed-power product. Ensure the system voltage remains strictly within the 4.5 V to 5.5 V range to maintain signal integrity and prevent damage to the CMOS structure.

Part Context

This part belongs to the SN74ALS244 family of octal buffers. It serves as a high-speed alternative to older logic families while maintaining compatibility with existing TTL interfaces. The device is designed to improve system density and performance in digital communication and data transmission environments.

Replacement Considerations

Direct replacements include SN74ALS244DW or SN74ALS244N depending on the required package type. Verify pin compatibility and electrical specifications before substituting.