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MM74HCT245N - onsemi

Description: Octal 3-STATE Transceiver

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MM74HCT245N - onsemi - PCB symbol
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MM74HCT245N - onsemi PCB footprint - Dual-In-Line Packages - Dual-In-Line Packages - 20_lead PDIP N20A_1
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MM74HCT245N - onsemi - 3D model - Dual-In-Line Packages - 20_lead PDIP N20A_1
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MM74HCT245N Details

  • Manufacturer Part Number:

    MM74HCT245N

  • Brand Name:

    ON Semiconductor

  • Pbfree Code:

    Yes

  • Part Life Cycle Code:

    Obsolete

  • Package Description:

    DIP-20

  • Manufacturer Package Code:

    N20A

  • HTS Code:

    8542.39.00.60

  • Manufacturer:

    onsemi

  • YTEOL:

    0

  • Control Type:

    COMMON CONTROL

  • Count Direction:

    BIDIRECTIONAL

  • Family:

    HCT

  • JESD-30 Code:

    R-PDIP-T20

  • Length:

    26.075 mm

  • Load Capacitance (CL):

    150 pF

  • Logic IC Type:

    BUS TRANSCEIVER

  • Max I(ol):

    0.006 A

  • Number of Bits:

    8

  • Number of Functions:

    1

  • 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

  • Power Supply Current-Max (ICC):

    70 mA

  • Prop. Delay@Nom-Sup:

    45 ns

  • Propagation Delay (tpd):

    45 ns

  • 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 Form:

    THROUGH-HOLE

  • Terminal Pitch:

    2.54 mm

  • Terminal Position:

    DUAL

  • Width:

    7.62 mm

MM74HCT245N Frequently Asked Questions (FAQs)

  • The maximum frequency of operation for the MM74HCT245N is typically around 50 MHz, but it can vary depending on the specific application and operating conditions. It's recommended to consult the datasheet and perform simulations to determine the maximum frequency for a specific design.
  • To handle bus contention when using the MM74HCT245N, it's recommended to use a pull-up or pull-down resistor on the output lines to ensure that the bus is not driven to an invalid state. Additionally, consider using a bus arbiter or a multiplexer to manage access to the bus.
  • The power consumption of the MM74HCT245N depends on the operating frequency, voltage, and load conditions. According to the datasheet, the typical quiescent current is around 20 μA, and the dynamic current is around 10 mA at 50 MHz. However, it's recommended to consult the datasheet and perform power analysis to determine the exact power consumption for a specific design.
  • Yes, the MM74HCT245N can be used with a 3.3V supply voltage. The device is specified to operate from 4.5V to 5.5V, but it can also operate at lower voltages with reduced performance. However, it's recommended to consult the datasheet and perform simulations to ensure that the device meets the required specifications at 3.3V.
  • To ensure signal integrity when using the MM74HCT245N, it's recommended to follow proper PCB design practices, such as using controlled impedance traces, minimizing signal routing, and using termination resistors. Additionally, consider using a signal integrity analysis tool to simulate and optimize the signal transmission.

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MM74HCT245N Overview

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