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SN74121NE4 - Texas Instruments

Description: Multivibrateur monostable Schmitt-trigger inputs

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SN74121NE4 - Texas Instruments PCB footprint - Dual-In-Line Packages - Dual-In-Line Packages - N (R-PDIP-T14)
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SN74121NE4 - Texas Instruments  - 3D model - Dual-In-Line Packages - N (R-PDIP-T14)
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SN74121NE4 Details

  • Manufacturer Part Number:

    SN74121NE4

  • Brand Name:

    Texas Instruments

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Obsolete

  • Part Package Code:

    DIP

  • Package Description:

    DIP-14

  • Pin Count:

    14

  • HTS Code:

    8542.39.00.60

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    0

  • Additional Feature:

    NON-RETRIGGERABLE; OPTIONAL INTERNAL TIMING RESISTOR

  • Family:

    74121

  • JESD-30 Code:

    R-PDIP-T14

  • JESD-609 Code:

    e4

  • Length:

    19.305 mm

  • Load Capacitance (CL):

    15 pF

  • Logic IC Type:

    MONOSTABLE MULTIVIBRATOR

  • Number of Data/Clock Inputs:

    3

  • Number of Functions:

    1

  • Number of Terminals:

    14

  • Operating Temperature-Max:

    70 °C

  • Output Polarity:

    COMPLEMENTARY

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    DIP

  • Package Equivalence Code:

    DIP14,.3

  • Package Shape:

    RECTANGULAR

  • Package Style:

    IN-LINE

  • Power Supply Current-Max (ICC):

    40 mA

  • Propagation Delay (tpd):

    80 ns

  • Qualification Status:

    Not Qualified

  • Seated Height-Max:

    5.08 mm

  • Supply Voltage-Max (Vsup):

    5.25 V

  • Supply Voltage-Min (Vsup):

    4.75 V

  • Supply Voltage-Nom (Vsup):

    5 V

  • Surface Mount:

    NO

  • Technology:

    TTL

  • Temperature Grade:

    COMMERCIAL

  • Terminal Finish:

    NICKEL PALLADIUM GOLD

  • Terminal Form:

    THROUGH-HOLE

  • Terminal Pitch:

    2.54 mm

  • Terminal Position:

    DUAL

  • Width:

    7.62 mm

SN74121NE4 Frequently Asked Questions (FAQs)

  • The maximum frequency of operation for the SN74121NE4 is 25 MHz, but it can be operated at higher frequencies with reduced output current and voltage swing.
  • Proper termination is crucial for the SN74121NE4. Use a 50-ohm termination resistor between the output and ground, and a 1-kohm resistor between the output and VCC to prevent ringing and oscillations.
  • Use a 0.1-uF ceramic capacitor and a 10-uF electrolytic capacitor in parallel, placed as close as possible to the VCC pin, to ensure proper power supply decoupling and noise reduction.
  • Yes, the SN74121NE4 can be used as a crystal oscillator, but it requires an external crystal and capacitors. The crystal frequency should be within the device's operating frequency range, and the capacitors should be chosen according to the crystal's specifications.
  • The output enable (OE) pin is active-low, meaning it should be connected to ground to enable the output. When OE is high, the output is in a high-impedance state, and the device consumes less power.

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SN74121NE4 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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