SN74LS423NSR

Overview

The SN74LS423NSR is a dual retriggerable monostable multivibrator manufactured by Texas Instruments. It operates within the standard 74LS logic family and is housed in a 16-pin Small Outline Package (SOP). The device features a typical propagation delay of 28 ns, ensuring precise timing control for digital circuits. Designed for commercial temperature ranges, this component provides reliable pulse generation and timing functions in compact surface-mount configurations.

Feature Summary

• Dual independent retriggerable monostable multivibrators integrated into a single package
• High-speed operation with a typical 28 ns propagation delay
• Surface-mount 16-SO package design for automated assembly

Applications

• Pulse width modulation circuits
• Timing delay generation
• Waveform shaping and conversion

Procurement Notes

Verify the specific suffix 'SR' indicates tape-and-reel packaging when sourcing. Confirm the manufacturer is Texas Instruments to ensure compatibility with 74LS specifications. Check for RoHS compliance status as indicated in distributor listings. Ensure the operating temperature range matches commercial grade requirements for your specific application environment.

Selection Notes

Select this component when dual monostable functionality is required in a space-constrained design. The 74LS series offers a balance of speed and power consumption suitable for general-purpose digital logic. Consider the 16-SOP footprint for PCB layout constraints. Verify input trigger requirements align with standard TTL/LS logic levels.

Part Context

This part belongs to the Texas Instruments 74LS series of logic devices, known for low-power Schottky technology. The SN74LS423 specifically addresses applications requiring multiple independent timing channels. It complements other 74LS components like buffers and shift registers in complex digital systems.

Replacement Considerations

Direct substitutes include the SN74LS423N for through-hole applications or other manufacturers' equivalents in the 74LS423 family. Ensure pinout compatibility and electrical characteristics match before substitution.