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SN74HC640PW - Texas Instruments

Description: TEXAS INSTRUMENTS - SN74HC640PW - LOGIC, BUS TRANSCVR OCTAL, 20TSSOP

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SN74HC640PW - Texas Instruments PCB footprint - Small Outline Packages - Small Outline Packages - PW (R-PDSO-G20)
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SN74HC640PW - Texas Instruments  - 3D model - Small Outline Packages - PW (R-PDSO-G20)
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SN74HC640PW Details

  • Manufacturer Part Number:

    SN74HC640PW

  • Brand Name:

    Texas Instruments

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Obsolete

  • Part Package Code:

    TSSOP

  • Pin Count:

    20

  • Country Of Origin:

    Malaysia

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.60

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    0

  • Control Type:

    COMMON CONTROL

  • Count Direction:

    BIDIRECTIONAL

  • Family:

    HC/UH

  • JESD-30 Code:

    R-PDSO-G20

  • JESD-609 Code:

    e4

  • Length:

    6.5 mm

  • Load Capacitance (CL):

    50 pF

  • Logic IC Type:

    BUS TRANSCEIVER

  • Max I(ol):

    0.0078 A

  • Moisture Sensitivity Level:

    1

  • Number of Bits:

    8

  • Number of Functions:

    8

  • Number of Ports:

    2

  • Number of Terminals:

    20

  • Operating Temperature-Max:

    85 °C

  • Operating Temperature-Min:

    -40 °C

  • Output Characteristics:

    3-STATE

  • Output Polarity:

    INVERTED

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    TSSOP

  • Package Equivalence Code:

    TSSOP20,.25

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE, THIN PROFILE, SHRINK PITCH

  • Packing Method:

    TUBE

  • Peak Reflow Temperature (Cel):

    260

  • Power Supply Current-Max (ICC):

    0.08 mA

  • Prop. Delay@Nom-Sup:

    22 ns

  • Propagation Delay (tpd):

    235 ns

  • Qualification Status:

    Not Qualified

  • Schmitt Trigger:

    NO

  • Seated Height-Max:

    1.2 mm

  • Supply Voltage-Max (Vsup):

    6 V

  • Supply Voltage-Min (Vsup):

    2 V

  • Supply Voltage-Nom (Vsup):

    5 V

  • Surface Mount:

    YES

  • Technology:

    CMOS

  • Temperature Grade:

    INDUSTRIAL

  • Terminal Finish:

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

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    0.65 mm

  • Terminal Position:

    DUAL

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

    30

  • Width:

    4.4 mm

SN74HC640PW Frequently Asked Questions (FAQs)

  • The maximum operating frequency of the SN74HC640PW is 50 MHz, but it can vary depending on the specific application, capacitive load, and supply voltage.
  • To ensure signal integrity and minimize noise, use proper PCB layout techniques, such as separating analog and digital signals, using ground planes, and adding decoupling capacitors. Additionally, consider using series resistors or ferrite beads to reduce ringing and overshoot.
  • The recommended power-on sequence for the SN74HC640PW is to apply the power supply voltage (VCC) before applying the input signals. This helps prevent unwanted output states and ensures proper device operation.
  • Yes, the SN74HC640PW can be used in a 5V system, but you need to ensure that the input signals are within the recommended voltage range (VCC - 0.5V to VCC + 0.5V). Additionally, be aware that the output voltage may not reach the full 5V level, and the device's power consumption will increase.
  • The SN74HC640PW has a maximum junction temperature of 150°C. To handle thermal considerations, ensure good airflow, use a heat sink if necessary, and follow proper PCB design guidelines for thermal management. You can also consider using a thermal pad or thermal interface material to improve heat dissipation.

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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 74HC640PW NXP Semiconductors

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Part Image SN74HC640PWLE Texas Instruments

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Part Image 74HC640PW-T NXP Semiconductors

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For a full list of alternate parts for SN74HC640PW, check out Findchips.com