Texas Instruments

SN74LS244NS

SN74LS244NS Description

The SN74LS244NS from Texas Instruments is a high-performance non-inverting octal buffer and line driver designed for 4.75V to 5.25V operation. Housed in a 20-pin SOIC package, this device is part of the 74LS series, offering robust signal conditioning and driving capabilities. With two independent 4-bit buffers, it provides 15mA source and 24mA sink current, making it suitable for interfacing with high-capacitance loads. Its surface-mount design ensures compact PCB integration, while RoHS3 compliance aligns with modern environmental standards.

SN74LS244NS Features

• Dual 4-bit buffers for flexible signal routing.
• Wide operating voltage (4.75V–5.25V) compatible with TTL logic levels.
• High drive capability: 15mA (high) / 24mA (low) for robust signal integrity.
• Low-power Schottky (LS) technology for reduced power consumption.
• Surface-mount (SOIC-20) package for space-constrained designs.
• MSL 1 (Unlimited) moisture sensitivity for extended shelf life.
• Last Time Buy status indicates end-of-life availability, urging design finalization.

SN74LS244NS Applications

• Bus driving and buffering in microprocessor/microcontroller systems.
• Memory address/data line isolation to prevent signal degradation.
• Industrial control systems requiring noise immunity and high drive strength.
• Automotive electronics where reliable signal conditioning is critical.
• Telecom infrastructure for level shifting and impedance matching.

Conclusion of SN74LS244NS

The SN74LS244NS excels in high-speed, low-power digital systems requiring signal buffering and driving. Its dual-buffer architecture, TTL compatibility, and strong output drive make it ideal for noise-sensitive or high-load applications. While marked as Last Time Buy, it remains a dependable choice for legacy designs or replacements. Engineers should consider this IC for robust, space-efficient signal conditioning in industrial, automotive, and computing applications.