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SN54HC21J - Texas Instruments

Description: AND Gate 2-Element 4-IN CMOS 14-Pin CDIP Tube

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SN54HC21J - Texas Instruments PCB footprint - Ceramic Dual-In-Line Packages - Ceramic Dual-In-Line Packages - J0014A
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SN54HC21J Details

  • Manufacturer Part Number:

    SN54HC21J

  • Brand Name:

    Texas Instruments

  • Pbfree Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    DIP

  • Pin Count:

    14

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.90

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    15

  • Family:

    HC/UH

  • JESD-30 Code:

    R-GDIP-T14

  • JESD-609 Code:

    e0

  • Length:

    19.56 mm

  • Load Capacitance (CL):

    50 pF

  • Logic IC Type:

    AND GATE

  • Max I(ol):

    0.0052 A

  • Number of Functions:

    2

  • Number of Inputs:

    4

  • Number of Terminals:

    14

  • Operating Temperature-Max:

    125 °C

  • Operating Temperature-Min:

    -55 °C

  • Package Body Material:

    CERAMIC, GLASS-SEALED

  • Package Code:

    DIP

  • Package Equivalence Code:

    DIP14,.3

  • Package Shape:

    RECTANGULAR

  • Package Style:

    IN-LINE

  • Packing Method:

    TUBE

  • Power Supply Current-Max (ICC):

    0.04 mA

  • Prop. Delay@Nom-Sup:

    33 ns

  • Propagation Delay (tpd):

    165 ns

  • Qualification Status:

    Not Qualified

  • Schmitt Trigger:

    NO

  • Seated Height-Max:

    5.08 mm

  • Supply Voltage-Max (Vsup):

    6 V

  • Supply Voltage-Min (Vsup):

    2 V

  • Supply Voltage-Nom (Vsup):

    5 V

  • Surface Mount:

    NO

  • Technology:

    CMOS

  • Temperature Grade:

    MILITARY

  • Terminal Finish:

    Tin/Lead (Sn/Pb)

  • Terminal Form:

    THROUGH-HOLE

  • Terminal Pitch:

    2.54 mm

  • Terminal Position:

    DUAL

  • Width:

    7.62 mm

SN54HC21J Frequently Asked Questions (FAQs)

  • The maximum operating frequency of the SN54HC21J is 25 MHz, but it can vary depending on the specific application and operating conditions.
  • The output enable (OE) pin should be connected to a logic low (GND) to enable the outputs, and to a logic high (VCC) to disable the outputs. Leaving the OE pin floating can cause unpredictable behavior.
  • A simple POR circuit can be implemented using a resistor, capacitor, and diode connected to the VCC pin. The capacitor should be discharged slowly to ensure a clean power-on reset.
  • Use proper PCB layout techniques, such as separating analog and digital signals, using ground planes, and adding decoupling capacitors to minimize noise and ensure signal integrity.
  • Yes, the SN54HC21J can operate in a 3.3V system, but the input voltage thresholds may vary. Ensure that the input signals meet the recommended voltage levels and that the output voltage levels are compatible with the receiving device.

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SN54HC21J 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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Part Image CD54HC21F3A Rochester Electronics LLC

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Part Image HD74HC21P Renesas Electronics Corporation

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Part Image 5962-8857601CA Texas Instruments

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Part Image CD54HC21F Intersil Corporation

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Part Image GD74HC21 Goldstar Electron Co Ltd

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For a full list of alternate parts for SN54HC21J, check out Findchips.com