SN74LS21N The Texas Instruments SN74LS21N is a dual 4-input positive-AND gate. It operates within a voltage range of 4.75V to 5.25V and comes in a 14-PDIP through-hole package.
Mfr Part #:

SN74LS21N

Available from 2 distributors
Mfr Name: Texas Instruments
Texas Instruments
The Texas Instruments SN74LS21N is a dual 4-input positive-AND gate. It operates within a voltage range of 4.75V to 5.25V and comes in a 14-PDIP through-hole package.
✓ Total Stock: 921 pcs
$ Price Range: $0.43

SN74LS21N Available from 2 distributors

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Non-Authorised Inventory information
750 pcs
750 pcs On Request 1 On Request On Request 21+ On Request On Request
Non-Authorised Inventory information
171 pcs
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SN74LS21N Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Current
Input Logic Level
Logic Type
Max Propagation Delay @ V, Max CL
Mounting Type
Number of Circuits
Number of Inputs
Operating Temperature
Operating Voltage
Package Quantity
Supplier Device Package
Voltage

SN74LS21N Description

Short technical summary and product information.

The SN74LS21N from Texas Instruments is a logic IC featuring two independent 4-input AND gates. This component is designed for operation within a voltage supply range of 4.75V to 5.25V.

 

Key electrical characteristics include a maximum propagation delay of 20ns at 5V with a 15pF load capacitance. The device supports an input logic level of 2V. It is specified for an operating temperature range of 0°C to 70°C.

 

Packaged in a 14-pin Dual In-line Package (PDIP) with a 0.300" (7.62mm) body, the SN74LS21N is designed for through-hole mounting. This makes it suitable for applications requiring robust and reliable connections.

 

This AND gate is part of the 74LS series, known for its balance of speed and power consumption. It is commonly used in digital logic circuits for performing Boolean AND operations.

SN74LS21N Quick Information

Product Type: AND Gate
Series: 74LS
Canonical Name: SN74LS21N Dual 4-Input Positive-AND Gate
Subcategory: AND Gate

SN74LS21N Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

SN74LS21N Estimated Pricing

Qty Low High
1+ $0.43 $0.43

Estimated market price range - modelled values for guidance only, not live distributor offers.

SN74LS21N Features

  • Dual 4-input AND gate configuration.
  • Operates from 4.75V to 5.25V supply.
  • 20ns maximum propagation delay.
  • 14-PDIP through-hole package.
  • 0°C to 70°C operating temperature.

SN74LS21N Applications

  • Digital logic circuit implementation.
  • Boolean AND function realization.
  • Control signal gating applications.
  • Embedded system logic design.

SN74LS21N FAQs

7 frequently asked questions generated from this part’s specifications.
What is the operating voltage range of the SN74LS21N?

The operating voltage range is 4.75V to 5.25V.

What package is the SN74LS21N available in?

The SN74LS21N is available in a 14-DIP (0.300", 7.62mm) package, also specified as 14-PDIP.

What is the operating temperature range?

The operating temperature range is 0°C to 70°C.

How many AND gates are in the SN74LS21N?

The SN74LS21N contains two independent AND gates.

How many inputs does each gate have?

Each AND gate has four inputs.

What is the maximum propagation delay?

The maximum propagation delay is 20ns at 5V and 15pF load.

What is the output current capability?

The output current is 400µA for high level and 8mA for low level.

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