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SN74LS190N - Texas Instruments

Description: Counter ICs Synchronous up/down decade counters 16-PDIP 0 to 70

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SN74LS190N - Texas Instruments - PCB symbol
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SN74LS190N - Texas Instruments PCB footprint - Dual-In-Line Packages - Dual-In-Line Packages - SN74LS190N
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SN74LS190N Details

  • Manufacturer Part Number:

    SN74LS190N

  • Brand Name:

    Texas Instruments

  • Pbfree Code:

    No

  • Part Life Cycle Code:

    Obsolete

  • Part Package Code:

    DIP

  • Package Description:

    PLASTIC, DIP-16

  • Pin Count:

    16

  • HTS Code:

    8542.39.00.60

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    0

  • Additional Feature:

    TCO OUTPUT

  • Count Direction:

    BIDIRECTIONAL

  • Family:

    LS

  • JESD-30 Code:

    R-PDIP-T16

  • Length:

    19.305 mm

  • Load Capacitance (CL):

    15 pF

  • Load/Preset Input:

    YES

  • Logic IC Type:

    DECADE COUNTER

  • Max Frequency@Nom-Sup:

    20000000 Hz

  • Max I(ol):

    0.008 A

  • Mode of Operation:

    SYNCHRONOUS

  • Number of Bits:

    4

  • Number of Functions:

    1

  • Number of Terminals:

    16

  • Operating Temperature-Max:

    70 °C

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    DIP

  • Package Equivalence Code:

    DIP16,.3

  • Package Shape:

    RECTANGULAR

  • Package Style:

    IN-LINE

  • Peak Reflow Temperature (Cel):

    NOT SPECIFIED

  • Power Supply Current-Max (ICC):

    35 mA

  • Prop. Delay@Nom-Sup:

    36 ns

  • Propagation Delay (tpd):

    36 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 Form:

    THROUGH-HOLE

  • Terminal Pitch:

    2.54 mm

  • Terminal Position:

    DUAL

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

    NOT SPECIFIED

  • Trigger Type:

    POSITIVE EDGE

  • Width:

    7.62 mm

  • fmax-Min:

    20 MHz

SN74LS190N Frequently Asked Questions (FAQs)

  • The maximum clock frequency of the SN74LS190N is typically around 35 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 high frequencies.
  • To ensure proper power supply and decoupling, connect the VCC pin to a stable 5V power supply, and decouple the power supply lines with 0.1uF ceramic capacitors as close to the device as possible. Additionally, use a 10uF electrolytic capacitor to filter out any noise or ripple on the power supply lines.
  • The maximum input voltage that the SN74LS190N can tolerate is 5.5V. Exceeding this voltage can cause damage to the device. It's recommended to use input voltage limiting resistors or voltage clamping circuits to prevent overvoltage conditions.
  • The SN74LS190N is a 5V device, but it can be used in a 3.3V system with some limitations. The device's input voltage threshold is around 2V, so it can tolerate 3.3V input signals. However, the output voltage levels may not be compatible with 3.3V logic, and the device's power consumption may increase. It's recommended to use a level translator or voltage regulator to ensure proper operation.
  • The asynchronous clear input (CLR) is an active-low input that resets the counter to zero when asserted low. To handle the CLR input, connect it to a pull-up resistor and a switch or a logic gate that can drive the input low when needed. Ensure that the CLR input is synchronized with the clock signal to avoid metastability issues.

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SN74LS190N 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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SN74LS190N Alternates

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Part Image SN74LS190J-00 Texas Instruments

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Part Image M38510/31513BEX Motorola Semiconductor Products

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Part Image T74LS190B1 STMicroelectronics

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For a full list of alternate parts for SN74LS190N, check out Findchips.com