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SN74HC646DWR - Texas Instruments

Description: Octal Bus Transceivers And Registers With 3-State Outputs

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SN74HC646DWR - Texas Instruments PCB footprint - Small Outline Packages - Small Outline Packages - DW (R-PDSO-G24)
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SN74HC646DWR - Texas Instruments  - 3D model - Small Outline Packages - DW (R-PDSO-G24)
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SN74HC646DWR Details

  • Manufacturer Part Number:

    SN74HC646DWR

  • Brand Name:

    Texas Instruments

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    SOIC

  • Pin Count:

    24

  • Country Of Origin:

    Taiwan

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.90

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    15

  • Additional Feature:

    WITH DIRECTION CONTROL

  • Control Type:

    INDEPENDENT CONTROL

  • Count Direction:

    BIDIRECTIONAL

  • Family:

    HC/UH

  • JESD-30 Code:

    R-PDSO-G24

  • JESD-609 Code:

    e4

  • Length:

    15.4 mm

  • Load Capacitance (CL):

    150 pF

  • Logic IC Type:

    REGISTERED 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:

    24

  • Operating Temperature-Max:

    85 °C

  • Operating Temperature-Min:

    -40 °C

  • Output Characteristics:

    3-STATE

  • Output Polarity:

    TRUE

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    SOP

  • Package Equivalence Code:

    SOP24,.4

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE

  • Packing Method:

    TR

  • Peak Reflow Temperature (Cel):

    260

  • Power Supply Current-Max (ICC):

    0.08 mA

  • Prop. Delay@Nom-Sup:

    29 ns

  • Propagation Delay (tpd):

    330 ns

  • Qualification Status:

    Not Qualified

  • Schmitt Trigger:

    NO

  • Seated Height-Max:

    2.65 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:

    1.27 mm

  • Terminal Position:

    DUAL

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

    30

  • Trigger Type:

    POSITIVE EDGE

  • Width:

    7.5 mm

SN74HC646DWR Frequently Asked Questions (FAQs)

  • The maximum operating frequency of the SN74HC646DWR is 50 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 SN74HC646DWR is to use a 50-ohm pull-up resistor to VCC for each output, and a 50-ohm pull-down resistor to GND for each input. This ensures proper signal integrity and minimizes reflections.
  • Yes, the SN74HC646DWR is compatible with 5V systems, but it is recommended to use a voltage regulator to ensure a stable 5V supply. Additionally, the device's input and output voltage levels should be within the recommended operating range.
  • The SN74HC646DWR 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, and to keep the device away from heat sources. The device's thermal resistance (RθJA) is 60°C/W.

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SN74HC646DWR 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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