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SN74LS90NE4 - Texas Instruments

Description: Counter ICs DECADE COUNTER

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SN74LS90NE4 - Texas Instruments - PCB symbol
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PCB Footprints
SN74LS90NE4 - Texas Instruments PCB footprint - Dual-In-Line Packages - Dual-In-Line Packages - N (R-PDIP-T14)
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3D Models
SN74LS90NE4 - Texas Instruments - 3D model - Dual-In-Line Packages - N (R-PDIP-T14)
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SN74LS90NE4 Details

  • Manufacturer Part Number:

    SN74LS90NE4

  • Brand Name:

    Texas Instruments

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    DIP

  • Pin Count:

    14

  • Country Of Origin:

    Malaysia, Mexico

  • HTS Code:

    8542.39.00.60

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    15

  • Additional Feature:

    ONE FUNCTION HAS 1 BIT

  • Count Direction:

    UP

  • Family:

    LS

  • JESD-30 Code:

    R-PDIP-T14

  • JESD-609 Code:

    e4

  • Length:

    19.305 mm

  • Load Capacitance (CL):

    15 pF

  • Load/Preset Input:

    NO

  • Logic IC Type:

    DECADE COUNTER

  • Max Frequency@Nom-Sup:

    16000000 Hz

  • Max I(ol):

    0.008 A

  • Mode of Operation:

    ASYNCHRONOUS

  • Moisture Sensitivity Level:

    1

  • Number of Bits:

    4

  • Number of Functions:

    1

  • Number of Terminals:

    14

  • Operating Temperature-Max:

    70 °C

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    DIP

  • Package Equivalence Code:

    DIP14,.3

  • Package Shape:

    RECTANGULAR

  • Package Style:

    IN-LINE

  • Packing Method:

    TUBE

  • Power Supply Current-Max (ICC):

    15 mA

  • Prop. Delay@Nom-Sup:

    50 ns

  • Propagation Delay (tpd):

    50 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 (Ni/Pd/Au)

  • Terminal Form:

    THROUGH-HOLE

  • Terminal Pitch:

    2.54 mm

  • Terminal Position:

    DUAL

  • Trigger Type:

    NEGATIVE EDGE

  • Width:

    7.62 mm

  • fmax-Min:

    32 MHz

SN74LS90NE4 Frequently Asked Questions (FAQs)

  • The maximum clock frequency of the SN74LS90NE4 is typically around 2-3 MHz, but it can vary depending on the specific application and operating conditions. It's recommended to check the device's timing specifications and perform thorough testing to ensure reliable operation at the desired clock frequency.
  • To ensure proper power sequencing, it's recommended to power up the VCC pin before applying any input signals, and to power down the VCC pin after removing all input signals. Additionally, it's a good practice to add decoupling capacitors close to the VCC pin to reduce noise and ensure stable operation.
  • The recommended operating temperature range for the SN74LS90NE4 is 0°C to 70°C. However, the device can operate up to 85°C with reduced performance and reliability. It's essential to ensure that the device operates within the recommended temperature range to maintain its performance and lifespan.
  • The output enable (OE) pin is used to enable or disable the output of the counter. When OE is low, the output is enabled, and when OE is high, the output is disabled. It's essential to ensure that the OE pin is properly connected and controlled to avoid unwanted output states.
  • To ensure reliable operation and minimize noise, it's recommended to follow good layout and routing practices when designing a PCB with the SN74LS90NE4. This includes keeping the clock signal traces short and away from noisy signals, using a solid ground plane, and adding decoupling capacitors close to the VCC pin.

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SN74LS90NE4 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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