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SN74LS688NSR - Texas Instruments

Description: Logic Comparators 8-Bit Magnitude/Id Comparator

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SN74LS688NSR - Texas Instruments PCB footprint - Small Outline Packages - Small Outline Packages - NS (R-PDSO-G20)
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SN74LS688NSR - Texas Instruments  - 3D model - Small Outline Packages - NS (R-PDSO-G20)
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SN74LS688NSR Details

  • Manufacturer Part Number:

    SN74LS688NSR

  • Brand Name:

    Texas Instruments

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    SOIC

  • Pin Count:

    20

  • Country Of Origin:

    Malaysia

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.90

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    15

  • Additional Feature:

    WITH PULL-UP RESISTORS ON Q INPUTS; WITH P = Q & P > Q OUTPUTS

  • Family:

    LS

  • JESD-30 Code:

    R-PDSO-G20

  • JESD-609 Code:

    e4

  • Length:

    12.6 mm

  • Load Capacitance (CL):

    45 pF

  • Logic IC Type:

    IDENTITY COMPARATOR

  • Max I(ol):

    0.024 A

  • Moisture Sensitivity Level:

    1

  • Number of Bits:

    8

  • Number of Functions:

    8

  • Number of Terminals:

    20

  • Operating Temperature-Max:

    70 °C

  • Output Characteristics:

    TOTEM-POLE

  • Output Polarity:

    INVERTED

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    SOP

  • Package Equivalence Code:

    SOP20,.3

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE

  • Packing Method:

    TR

  • Peak Reflow Temperature (Cel):

    260

  • Power Supply Current-Max (ICC):

    68 mA

  • Prop. Delay@Nom-Sup:

    23 ns

  • Propagation Delay (tpd):

    23 ns

  • Qualification Status:

    Not Qualified

  • Schmitt Trigger:

    YES

  • Seated Height-Max:

    2 mm

  • Supply Voltage-Max (Vsup):

    5.25 V

  • Supply Voltage-Min (Vsup):

    4.85 V

  • Supply Voltage-Nom (Vsup):

    5 V

  • Surface Mount:

    YES

  • Technology:

    TTL

  • Temperature Grade:

    COMMERCIAL

  • Terminal Finish:

    Nickel/Palladium/Gold (Ni/Pd/Au)

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    1.27 mm

  • Terminal Position:

    DUAL

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

    30

  • Width:

    5.3 mm

SN74LS688NSR Frequently Asked Questions (FAQs)

  • The maximum operating frequency of the SN74LS688NSR is 30 MHz, but it can vary depending on the specific application and operating conditions.
  • It is recommended to power up the VCC pin before the input signals, and power down the VCC pin after the input signals. This ensures that the device is properly initialized and avoids any potential latch-up or damage.
  • The recommended termination scheme for the SN74LS688NSR is to use a pull-up resistor on the output pins, typically in the range of 1 kΩ to 10 kΩ, to ensure proper signal termination and reduce noise.
  • The SN74LS688NSR is a 5V device, but it can be used in a 3.3V system with some limitations. The device will still function, but the output voltage levels may not be compatible with 3.3V logic, and the noise margin may be reduced.
  • The SN74LS688NSR has a maximum junction temperature of 150°C. To ensure proper thermal management, it is recommended to use a heat sink or a thermal pad, especially in high-power or high-frequency applications.

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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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