SN74LS21N Dual 4 INPUT Positive AND Gate DIP-14
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SN74LS21N Dual 4 INPUT Positive AND Gate DIP-14

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  • Product SKU: INTEG144
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Specification

Description

The SN74LS21N is a dual 4-input AND gate IC (Integrated Circuit) from the 74LS series of TTL (Transistor-Transistor Logic) devices.

Here are some key Features and Characteristics of the SN74LS21N:

Dual 4-Input AND Gates: The SN74LS21N contains two separate AND gates, and each gate has four inputs.

Logic Function: Each 4-input AND gate performs the logical AND operation on its four inputs. The output is high only when all four inputs are high.

Low Power Schottky (LS) Technology: The LS designation indicates that it uses Low Power Schottky technology, providing a good balance between speed and power consumption.

Operating Voltage: The typical operating voltage for the SN74LS21N is in the range of 4.75V to 5.25V.

High-Speed Operation: LS TTL devices are known for their relatively high-speed operation compared to standard TTL.

Propagation Delay: Propagation delay is the time it takes for a change at the input to result in a change at the output. This parameter is critical in applications where timing is important.

Standard 14-Pin DIP Package: The SN74LS21N is typically available in a standard 14-pin DIP (Dual Inline Package), a common packaging format for integrated circuits.

Temperature Range: The typical operating temperature range for the SN74LS21N is 0°C to 70°C.

Applications:

AND gates are fundamental building blocks in digital circuit design. They are used in various applications, including arithmetic logic units (ALUs), data processing, and control systems.

Technical Details

  • Logic Function: AND
  • Logic Family: LS
  • Number of Gates: 2 Gate
  • Number of Input Lines: 8 Input
  • Number of Output Lines: 2 Output
  • High-Level Output Current: - 400 uA
  • Low-Level Output Current: 8 mA
  • Propagation Delay Time: 10 ns
  • Supply Voltage - Max: 5.25 V
  • Supply Voltage - Min: 4.75 V
  • Minimum Operating Temperature: 0 C
  • Maximum Operating Temperature: + 70 C
  • Mounting Style: Through Hole
  • Package / Case: PDIP-14
  • Function: Dual 4-Input
  • Input Type: TTL
  • Logic Type: 4-Input AND
  • Number of Bits: 2-bit
  • Operating Supply Current: 2.5 uA
  • Operating Supply Voltage: 5 V
  • Operating Temperature Range: 0 C to + 70 C
  • Output Type: TTL
  • Product Type: Logic Gates
  • Series: SN74LS21
  • Subcategory: Logic ICs

Physical Attributes

  • Length * Width * Height (mm): 19.3 x 6.35 x 4.57
  • Weight (gm) : 2

Documentation

Package Includes

  • 1 x SN74LS21N DUAL 4-INPUT POSITIVE-AND GATES DIP-14

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