SN74AS11D

Overview

The SN74AS11D is a triple 3-input AND gate integrated circuit manufactured by Texas Instruments. It belongs to the 74AS logic series and features a 14-pin SOIC surface-mount package. The device operates within a supply voltage range of 4.5 V to 5.5 V. Key electrical parameters include a propagation delay of 6 ns, a low-level output current of 20 mA, and a high-level output current of -2 mA. It supports through-hole or surface-mount installation styles depending on the specific variant suffix, with an operating temperature range typically spanning from 0°C to +70°C for commercial grades.

Feature Summary

• Provides three independent 3-input AND logic functions in a single package
• Features Schottky-clamped architecture for high-speed switching performance
• Delivers enhanced drive capability with specified low-level output current

Applications

• High-speed digital logic circuits requiring fast AND operations
• Data processing systems utilizing TTL-compatible logic levels
• Industrial control interfaces needing reliable signal gating

Procurement Notes

Verify the exact package type and suffix against the manufacturer datasheet, as 'SN74AS11' denotes the base part while the 'D' suffix specifies the SOIC-14 surface mount configuration. Confirm RoHS compliance status and lead times directly with authorized distributors, as availability varies by region. Ensure the selected component matches the required operating temperature range for your specific application environment before finalizing procurement orders.

Selection Notes

Select this component when system design requires faster switching speeds compared to standard 74LS series devices. The AS series offers improved propagation delays suitable for high-frequency applications. Consider the SOIC-14 package dimensions for PCB layout constraints. Verify that the input logic levels are compatible with the driving source signals within the specified 4.5 V to 5.5 V supply voltage window.

Part Context

This part is a member of the Texas Instruments 74AS (Advanced Schottky) family, designed to bridge the performance gap between standard LS and ALS logic families. It provides higher speed capabilities while maintaining compatibility with existing TTL logic standards. The SN74AS11 specifically implements triple 3-input AND functionality, serving as a core building block for complex combinational logic designs in industrial and commercial electronics.

Replacement Considerations

Public confirmed substitute part numbers: SN74AS11N, SN74AS11DR.