SN74LS244DBRG4

Buffers, Drivers, Receivers, Transceivers Overview

The SN74LS244DBRG4 is an octal buffer and line driver featuring three-state outputs, manufactured by Texas Instruments. It operates within a supply voltage range of 4.5 V to 5.5 V and supports a wide operating temperature range from -55 °C to +125 °C. The device utilizes a 20-pin SOIC surface-mount package. Key electrical characteristics include a maximum propagation delay of 30 ns at 5 V with a 50 pF load, and output drive capabilities of 24 mA for both high and low states. Static power consumption is typically low, ensuring efficient operation in digital logic applications requiring signal buffering and isolation.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Provides eight non-inverting buffers with independent output enable controls for flexible bus management
• Features three-state outputs to prevent bus contention when multiple devices share a common data line
• Supports industrial temperature ranges suitable for demanding electronic environments
• Designed for high-speed signal transmission with defined propagation delays

Buffers, Drivers, Receivers, Transceivers Applications

• Memory map controllers for address and data bus buffering
• Clock drivers for distributing timing signals across digital systems
• Bus-oriented communications interfaces requiring signal isolation
• Industrial control systems utilizing parallel data transfer

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific suffix 'G4' indicates RoHS compliance and green material status as per Texas Instruments documentation. Confirm the package type matches the required PCB footprint, as variations exist between standard and tape-and-reel formats. Ensure the operating temperature grade aligns with the application's thermal constraints, noting that LS logic families may have different thermal characteristics compared to HC or HCT variants. Cross-reference the datasheet revision date to ensure compatibility with current design standards.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when designing systems that require robust buffering for TTL-compatible logic levels. The LS series offers a balance between speed and power consumption, making it suitable for general-purpose digital applications. Consider the three-state capability for multiplexed bus architectures where multiple sources must drive a single line without interference. Evaluate the package size against available board space, as the SOIC-20 form factor provides a compact solution for dense circuit designs while maintaining adequate pin spacing for reliable soldering.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the SN74LS244 family of octal buffers and line drivers. It is part of the broader 74xx series of logic integrated circuits, widely used in digital electronics for signal conditioning and bus driving. The LS (Low-power Schottky) technology ensures reduced power dissipation compared to standard TTL while maintaining acceptable switching speeds. This specific variant is designed for surface-mount assembly, facilitating automated manufacturing processes in modern electronic equipment production lines.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

Direct substitutes include the SN74LS244DR and SN74LS244N, which share identical logical functionality but differ in packaging or reel specifications. Verify that any replacement maintains the same voltage and temperature ratings. Alternative technologies like HC or HCT series may offer faster speeds but require careful attention to input threshold voltage differences to ensure proper logic level compatibility within the existing circuit design.