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SN74LS640-1N - Texas Instruments

Description: Bus XCVR Single 8-CH 3-ST 20-Pin PDIP

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SN74LS640-1N - Texas Instruments PCB footprint - Dual-In-Line Packages - Dual-In-Line Packages - N (R-PDIP-T20)
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SN74LS640-1N - Texas Instruments  - 3D model - Dual-In-Line Packages - N (R-PDIP-T20)
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SN74LS640-1N Details

  • Manufacturer Part Number:

    SN74LS640-1N

  • Brand Name:

    Texas Instruments

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    DIP

  • Pin Count:

    20

  • Country Of Origin:

    Malaysia

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.90

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    15

  • Additional Feature:

    WITH DIRECTION CONTROL

  • Control Type:

    COMMON CONTROL

  • Count Direction:

    BIDIRECTIONAL

  • Family:

    LS

  • JESD-30 Code:

    R-PDIP-T20

  • JESD-609 Code:

    e4

  • Length:

    25.4 mm

  • Load Capacitance (CL):

    45 pF

  • Logic IC Type:

    BUS TRANSCEIVER

  • Max I(ol):

    0.024 A

  • Number of Bits:

    8

  • Number of Functions:

    8

  • Number of Ports:

    2

  • Number of Terminals:

    20

  • Operating Temperature-Max:

    70 °C

  • Output Characteristics:

    3-STATE

  • Output Polarity:

    INVERTED

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    DIP

  • Package Equivalence Code:

    DIP20,.3

  • Package Shape:

    RECTANGULAR

  • Package Style:

    IN-LINE

  • Packing Method:

    TUBE

  • Power Supply Current-Max (ICC):

    90 mA

  • Prop. Delay@Nom-Sup:

    15 ns

  • Propagation Delay (tpd):

    15 ns

  • Qualification Status:

    Not Qualified

  • Schmitt Trigger:

    NO

  • 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

  • Width:

    7.62 mm

SN74LS640-1N Frequently Asked Questions (FAQs)

  • The maximum operating frequency of the SN74LS640-1N is typically around 30-40 MHz, but it can vary depending on the specific application and operating conditions.
  • The SN74LS640-1N has a maximum output current of 15 mA per output pin. To handle higher current requirements, you can use external buffers or drivers, or consider using a different device with higher output current capability.
  • The power consumption of the SN74LS640-1N depends on the operating frequency, input voltage, and output loading. Typically, it consumes around 20-30 mW per gate, but this can vary depending on the specific application.
  • The SN74LS640-1N is designed to operate from a 4.75V to 5.25V supply voltage. While it may work in a 3.3V system, it's not recommended as it may not meet the specified performance and may not be reliable. For 3.3V systems, consider using a device with a lower voltage rating, such as the 74LVC640.
  • To ensure signal integrity, use proper PCB design techniques, such as using short signal traces, minimizing impedance mismatches, and using termination resistors as needed. Additionally, consider using a device with built-in signal conditioning, such as the 74LVC640, which has built-in slew-rate control.

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SN74LS640-1N 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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Part Image 8416101RA Texas Instruments

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Part Image SN74LS640NDS Motorola Semiconductor Products

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Part Image 74LS640N Signetics

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Part Image GD74LS640J Goldstar Electron Co Ltd

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For a full list of alternate parts for SN74LS640-1N, check out Findchips.com