SN74LS21DR

$0.54

Description：IC GATE AND 2CH 4-INP 14SOIC
Series：74LS
Mfr：Texas Instruments
Package：Tape & Reel (TR),Cut Tape (CT),Bulk

SKU:7b44c41866aa Category: Gates and Inverters Brand: Texas Instruments

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Product introduction

SN74LS21DR is listed in the Inverter Gates range at ChipApex. The manufacturer field lists Texas Instruments. Its product description is IC GATE AND 2CH 4-INP 14SOIC. Review the specifications below when checking this part for your BOM.

Inverter Gates specifications for SN74LS21DR

Description：IC GATE AND 2CH 4-INP 14SOIC
Series：74LS
Mfr：Texas Instruments
Package：Tape & Reel (TR),Cut Tape (CT),Bulk
Logic Type：AND Gate
Number of Circuits：2
Number of Inputs：4
Features：-
Voltage - Supply：4.75V ~ 5.25V
Current - Quiescent (Max)：-
Current - Output High, Low：400µA, 8mA
Input Logic Level - Low：0.8V
Input Logic Level - High：2V
Max Propagation Delay @ V, Max CL：20ns @ 5V, 15pF
Operating Temperature：0°C ~ 70°C
Mounting Type：Surface Mount
Supplier Device Package：14-SOIC
Package / Case：14-SOIC (0.154", 3.90mm Width)
Grade：-
Qualification：-

Inverter Gates datasheet and documents for SN74LS21DR

SN74LS21DR

Inverter Gates Overview

The SN74LS21DR is a dual 4-input positive-AND gate integrated circuit manufactured by Texas Instruments. It belongs to the 74LS logic series and is housed in a 14-pin SOIC surface-mount package. The device operates within a supply voltage range of 4.75 V to 5.25 V and supports a low-level output current of 8 mA. Key electrical characteristics include a propagation delay of 10 ns and an operating temperature range from 0°C to +70°C.

Inverter Gates Feature Summary

Contains two independent 4-input AND gates for complex logic implementation
Compatible with standard TTL logic families
Designed for surface-mount assembly via SOIC-14 packaging

Inverter Gates Applications

Digital logic circuits requiring multi-input AND operations
Control systems utilizing TTL-compatible components
General-purpose digital signal processing applications

Inverter Gates Procurement Notes

Verify that the component matches the specific SN74LS21DR part number, as suffixes indicate package type or tape-and-reel configuration. Confirm RoHS compliance status and ensure the supplier provides valid traceability documentation. Check for any recent product change notices regarding manufacturing sites or material composition updates before finalizing procurement.

Inverter Gates Selection Notes

Select this component when a dual 4-input AND function is required in a surface-mount design. Ensure the application environment stays within the specified 0°C to +70°C temperature range. Verify that the system power supply remains stable between 4.75 V and 5.25 V to maintain correct logic levels and performance specifications.

Inverter Gates Part Context

This device is part of the Texas Instruments 74LS family, which offers high-speed operation with reduced power consumption compared to standard 74S series parts. The SN74LS21 provides a compact solution for implementing multiple AND functions in space-constrained printed circuit board layouts using industry-standard pinouts.