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SN74HCT645N - Texas Instruments

Description: Octal Bus Transceivers With 3-State Outputs

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SN74HCT645N - Texas Instruments PCB footprint - Dual-In-Line Packages - Dual-In-Line Packages - N (R-PDIP-T20)
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SN74HCT645N - Texas Instruments  - 3D model - Dual-In-Line Packages - N (R-PDIP-T20)
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SN74HCT645N Details

  • Manufacturer Part Number:

    SN74HCT645N

  • 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:

    HCT

  • JESD-30 Code:

    R-PDIP-T20

  • JESD-609 Code:

    e4

  • Length:

    25.4 mm

  • Load Capacitance (CL):

    150 pF

  • Logic IC Type:

    BUS TRANSCEIVER

  • Max I(ol):

    0.006 A

  • 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:

    TRUE

  • 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):

    0.08 mA

  • Prop. Delay@Nom-Sup:

    25 ns

  • Propagation Delay (tpd):

    38 ns

  • Qualification Status:

    Not Qualified

  • Schmitt Trigger:

    NO

  • Seated Height-Max:

    5.08 mm

  • Supply Voltage-Max (Vsup):

    5.5 V

  • Supply Voltage-Min (Vsup):

    4.5 V

  • Supply Voltage-Nom (Vsup):

    5 V

  • Surface Mount:

    NO

  • Technology:

    CMOS

  • Temperature Grade:

    INDUSTRIAL

  • Terminal Finish:

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

  • Terminal Form:

    THROUGH-HOLE

  • Terminal Pitch:

    2.54 mm

  • Terminal Position:

    DUAL

  • Width:

    7.62 mm

SN74HCT645N Frequently Asked Questions (FAQs)

  • The maximum frequency of operation for the SN74HCT645N is 30 MHz.
  • Yes, the SN74HCT645N is compatible with 5V systems, but it's recommended to use a voltage regulator to ensure a stable 4.5V to 5.5V supply voltage.
  • The output enable (OE) pin is active-low, meaning it should be connected to GND to enable the outputs. Leaving it unconnected or connecting it to VCC will disable the outputs.
  • The SN74HCT645N can sink or source up to 6 mA per output pin, but it's recommended to limit the current to 4 mA to ensure reliable operation.
  • No, the SN74HCT645N is not compatible with 3.3V systems. It's designed to operate at 4.5V to 5.5V supply voltage.

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SN74HCT645N 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 SN74HCT645NE4 Texas Instruments

Bus Transceiver, HCT Series, 1-Func, 8-Bit, True Output, CMOS, PDIP20

Part Image SN74HCT645N-00 Texas Instruments

Bus Transceiver, HCT Series, 1-Func, 8-Bit, True Output, CMOS, PDIP20

Part Image SN74HCT645N3 Texas Instruments

Bus Transceiver, HCT Series, 1-Func, 8-Bit, True Output, CMOS, PDIP20

Part Image SN54HCT645J Texas Instruments

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Part Image SN54HCT645J-00 Texas Instruments

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For a full list of alternate parts for SN74HCT645N, check out Findchips.com