SN74ALS540-1NSR

Buffers, Drivers, Receivers, Transceivers Overview

The SN74ALS540-1NSR is an octal buffer and line driver from Texas Instruments, belonging to the Advanced Low-power Schottky (ALS) logic family. It features eight non-inverting channels 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 specifications include a propagation delay of 12 ns, a high-level output current of -15 mA, and a low-level output current of 48 mA. It supports surface-mount installation and functions reliably across an operating temperature range of 0°C to +70°C.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Provides eight independent non-inverting signal paths for bus driving applications
• Features three-state outputs to facilitate direct connection to system buses without external buffers
• Utilizes Advanced Low-power Schottky technology to achieve high-speed performance with reduced power consumption

Buffers, Drivers, Receivers, Transceivers Applications

• Memory module address and data bus buffering
• Clock distribution networks requiring high fan-out
• Control signal routing in industrial automation systems

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific suffix 'NSR' indicates the tape-and-reel packaging format compatible with automated assembly processes. Confirm that the ALS logic family designation aligns with existing circuit design requirements for voltage levels and drive strength. Ensure the SOIC-20 footprint matches the target PCB layout dimensions and thermal management strategies before finalizing procurement orders.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when designing systems requiring octal buffering with active drive capabilities rather than passive pull-up resistors. The ALS series offers a balance between speed and power dissipation suitable for general-purpose digital logic. Consider the 3-state control pin configuration to manage bus contention effectively in multi-master environments where multiple devices share common data lines.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the SN74ALS540 series of octal buffers and line drivers manufactured by Texas Instruments. It is functionally related to other variants such as the SN74ALS540DW and SN74ALS540-1N, differing primarily in packaging type and manufacturing lot specifics. The series represents a standard solution for interfacing between different logic families or driving heavy capacitive loads in digital circuits.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

Direct substitutes include the SN74ALS540DW and SN74ALS540-1N. Verify pin compatibility and electrical parameters match exactly before substitution.