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SN74LS148D - Texas Instruments

Description: Texas Instruments SN74LS148D, Priority Encoder, 8 to 3, 4.75 → 5.25 V, 16-Pin SOIC

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SN74LS148D - Texas Instruments PCB footprint - Small Outline Packages - Small Outline Packages - 16-PinSOIC(D)
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SN74LS148D - Texas Instruments  - 3D model - Small Outline Packages - 16-PinSOIC(D)
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SN74LS148D Details

  • Manufacturer Part Number:

    SN74LS148D

  • Brand Name:

    Texas Instruments

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Obsolete

  • Part Package Code:

    SOIC

  • Pin Count:

    16

  • Country Of Origin:

    Mexico

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.60

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    0

  • Additional Feature:

    8 TO 3 LINE PRIORITY ENCODER; CASCADABLE; WITH GROUP SELECT OUTPUT

  • Family:

    LS

  • JESD-30 Code:

    R-PDSO-G16

  • JESD-609 Code:

    e4

  • Length:

    9.9 mm

  • Load Capacitance (CL):

    15 pF

  • Logic IC Type:

    ENCODER

  • Max I(ol):

    0.008 A

  • Moisture Sensitivity Level:

    1

  • Number of Bits:

    8

  • Number of Functions:

    1

  • Number of Terminals:

    16

  • Operating Temperature-Max:

    70 °C

  • Output Polarity:

    INVERTED

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    SOP

  • Package Equivalence Code:

    SOP16,.25

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE

  • Packing Method:

    TUBE

  • Peak Reflow Temperature (Cel):

    260

  • Power Supply Current-Max (ICC):

    10 mA

  • Prop. Delay@Nom-Sup:

    19 ns

  • Propagation Delay (tpd):

    36 ns

  • Qualification Status:

    Not Qualified

  • Seated Height-Max:

    1.75 mm

  • Supply Voltage-Max (Vsup):

    5.25 V

  • Supply Voltage-Min (Vsup):

    4.75 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:

    3.91 mm

SN74LS148D Frequently Asked Questions (FAQs)

  • The SN74LS148D can handle clock frequencies up to 25 MHz.
  • The SN74LS148D requires a single 5V power supply, and it's recommended to use a decoupling capacitor of 0.1uF to 1uF between VCC and GND to reduce noise and ensure stable operation.
  • The SN74LS148D can tolerate input voltages up to 7V without damage, but it's recommended to keep input voltages within the specified range of 0V to VCC (5V) for proper operation.
  • When the SN74LS148D is not in use, it's recommended to tie the output pins to a fixed logic level (either VCC or GND) to prevent floating outputs and reduce power consumption.
  • The SN74LS148D is designed for 5V operation, but it can be used in a 3.3V system with some limitations. The output voltage will be reduced, and the device may not meet the specified timing parameters. It's recommended to use a level translator or a voltage regulator to ensure proper operation.

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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 SN74LS148DR Texas Instruments

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Part Image SN74LS148DRG4 Texas Instruments

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Part Image SN74LS148DRE4 Texas Instruments

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For a full list of alternate parts for SN74LS148D, check out Findchips.com