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SN74LS245NSRE4 - Texas Instruments

Description: Bus XCVR Single 8-CH 3-ST 20-Pin SOP T/R

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SN74LS245NSRE4 - Texas Instruments PCB footprint - Small Outline Packages - Small Outline Packages - NS (R-PDSO-G20)
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SN74LS245NSRE4 - Texas Instruments  - 3D model - Small Outline Packages - NS (R-PDSO-G20)
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SN74LS245NSRE4 Details

  • Manufacturer Part Number:

    SN74LS245NSRE4

  • Brand Name:

    Texas Instruments

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Obsolete

  • Part Package Code:

    SOIC

  • Package Description:

    SOP-20

  • Pin Count:

    20

  • HTS Code:

    8542.39.00.60

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    0

  • Control Type:

    COMMON CONTROL

  • Count Direction:

    BIDIRECTIONAL

  • Family:

    LS

  • JESD-30 Code:

    R-PDSO-G20

  • JESD-609 Code:

    e4

  • Length:

    12.6 mm

  • Load Capacitance (CL):

    45 pF

  • Logic IC Type:

    BUS TRANSCEIVER

  • Max I(ol):

    0.024 A

  • Moisture Sensitivity Level:

    1

  • Number of Bits:

    8

  • Number of Functions:

    1

  • Number of Ports:

    2

  • Number of Terminals:

    20

  • Operating Temperature-Max:

    70 °C

  • Output Characteristics:

    3-STATE

  • Output Polarity:

    TRUE

  • 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):

    90 mA

  • Prop. Delay@Nom-Sup:

    12 ns

  • Propagation Delay (tpd):

    12 ns

  • Qualification Status:

    Not Qualified

  • Seated Height-Max:

    2 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

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    1.27 mm

  • Terminal Position:

    DUAL

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

    30

  • Width:

    5.3 mm

SN74LS245NSRE4 Frequently Asked Questions (FAQs)

  • The maximum operating frequency of the SN74LS245NSRE4 is 30 MHz, but it can vary depending on the specific application and operating conditions.
  • To handle bus contention, ensure that only one device is driving the bus at a time. Use the output enable (OE) input to tri-state the outputs when not in use, and consider using a bus arbiter or multiplexer to manage access to the bus.
  • The power consumption of the SN74LS245NSRE4 depends on the operating frequency, voltage, and load. Typically, it consumes around 20-30 mA at 5V and 10 MHz, but can be as high as 100 mA at 5V and 30 MHz.
  • The SN74LS245NSRE4 is designed for 5V operation, but it can be used with a 3.3V supply with some limitations. The output voltage will be reduced, and the device may not meet the specified propagation delay and rise/fall times.
  • To ensure signal integrity, use proper PCB design techniques, such as using a solid ground plane, minimizing trace lengths, and using termination resistors or series resistors to reduce reflections and ringing.

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SN74LS245NSRE4 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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For a full list of alternate parts for SN74LS245NSRE4, check out Findchips.com