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SN74LS21DRG4 - Texas Instruments

Description: AND Gate 2-Element 4-IN Bipolar 14-Pin SOIC T/R

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SN74LS21DRG4 - Texas Instruments - PCB symbol
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PCB Footprints
SN74LS21DRG4 - Texas Instruments PCB footprint - Small Outline Packages - Small Outline Packages - D (-R-PDSO-G14)
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3D Models
SN74LS21DRG4 - Texas Instruments - 3D model - Small Outline Packages - D (-R-PDSO-G14)
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SN74LS21DRG4 Details

  • Manufacturer Part Number:

    SN74LS21DRG4

  • Brand Name:

    Texas Instruments

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Obsolete

  • Part Package Code:

    SOIC

  • Package Description:

    SO-14

  • Pin Count:

    14

  • HTS Code:

    8542.39.00.60

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    0

  • Family:

    LS

  • JESD-30 Code:

    R-PDSO-G14

  • JESD-609 Code:

    e4

  • Length:

    8.65 mm

  • Load Capacitance (CL):

    15 pF

  • Logic IC Type:

    AND GATE

  • Max I(ol):

    0.008 A

  • Moisture Sensitivity Level:

    1

  • Number of Functions:

    2

  • Number of Inputs:

    4

  • Number of Terminals:

    14

  • Operating Temperature-Max:

    70 °C

  • Output Characteristics:

    TOTEM-POLE

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    SOP

  • Package Equivalence Code:

    SOP14,.25

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE

  • Packing Method:

    TR

  • Peak Reflow Temperature (Cel):

    260

  • Power Supply Current-Max (ICC):

    4.4 mA

  • Prop. Delay@Nom-Sup:

    20 ns

  • Propagation Delay (tpd):

    20 ns

  • Qualification Status:

    Not Qualified

  • Schmitt Trigger:

    NO

  • Seated Height-Max:

    1.75 mm

  • Supply Voltage-Max (Vsup):

    5.25 V

  • Supply Voltage-Min (Vsup):

    4.75 V

  • Supply Voltage-Nom (Vsup):

    5 V

  • Surface Mount:

    YES

  • Technology:

    TTL

  • Temperature Grade:

    COMMERCIAL

  • Terminal Finish:

    NICKEL PALLADIUM GOLD

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    1.27 mm

  • Terminal Position:

    DUAL

  • Time@Peak Reflow Temperature-Max (s):

    30

  • Width:

    3.9 mm

SN74LS21DRG4 Frequently Asked Questions (FAQs)

  • The maximum operating frequency of the SN74LS21DRG4 is typically around 25 MHz, but it can vary depending on the specific application and operating conditions.
  • To ensure reliable operation in high-temperature environments, it's essential to follow proper thermal management practices, such as providing adequate heat sinking and airflow, and ensuring that the device is operated within its recommended temperature range (-40°C to 85°C).
  • The recommended power-on sequence for the SN74LS21DRG4 is to apply power to the VCC pin first, followed by the input signals. This helps to prevent unwanted latch-up or oscillation during power-up.
  • To minimize EMI and EMC issues, it's essential to follow proper PCB design practices, such as using ground planes, shielding, and decoupling capacitors. Additionally, ensure that the device is operated within its recommended operating conditions and that the system is designed to meet relevant EMI and EMC standards.
  • The recommended storage temperature range for the SN74LS21DRG4 is -65°C to 150°C. Storage outside of this range can affect the device's reliability and performance.

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SN74LS21DRG4 Overview

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About Texas Instruments

Texas Instruments (TI) designs and manufactures semiconductors and integrated circuits for a wide range of applications. The company's product portfolio includes analog chips, which are essential for managing power and signal functions in electronic devices, and embedded processors, which serve as the brains in various systems, enabling functionality in everything from industrial equipment to consumer electronics. TI's innovations in semiconductor technology have made it a leader in the industry.

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SN74LS21DRG4 Alternates

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Image Part Number Model
Part Image HD74LS21RP Hitachi Ltd

AND Gate, LS Series, 2-Func, 4-Input, TTL, PDSO14
Part Image HD74LS21RP-EL Renesas Electronics Corporation

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Part Image HD74LS21RP Renesas Electronics Corporation

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Part Image DM74LS21M Texas Instruments

AND Gate, LS Series, 2-Func, 4-Input, TTL, PDSO14
Part Image DM74LS21MX Texas Instruments

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For a full list of alternate parts for SN74LS21DRG4, check out Findchips.com