ON Semiconductor
Obrázek může být reprezentace.
Viz Specifikace pro podrobnosti o produktu.
MM74HCT245WMX
Zobrazit detail DataSheets

MM74HCT245WMX

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Level shifting and signal buffering
  • Characteristics: High-speed, low-power consumption
  • Package: SOIC (Small Outline Integrated Circuit)
  • Essence: Transceiver
  • Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

  • Supply Voltage: 2V to 6V
  • Input Voltage: 0V to VCC
  • Output Voltage: 0V to VCC
  • Operating Temperature: -40°C to +85°C
  • Propagation Delay: 9 ns (typical)
  • Output Current: ±6 mA

Pin Configuration

The MM74HCT245WMX has a total of 20 pins. The pin configuration is as follows:

  1. OE (Output Enable) - Output control pin
  2. A1 - Data input/output pin
  3. B1 - Data input/output pin
  4. A2 - Data input/output pin
  5. B2 - Data input/output pin
  6. A3 - Data input/output pin
  7. B3 - Data input/output pin
  8. A4 - Data input/output pin
  9. B4 - Data input/output pin
  10. GND (Ground) - Ground reference pin
  11. B5 - Data input/output pin
  12. A5 - Data input/output pin
  13. B6 - Data input/output pin
  14. A6 - Data input/output pin
  15. B7 - Data input/output pin
  16. A7 - Data input/output pin
  17. VCC - Power supply pin
  18. DIR (Direction Control) - Direction control pin
  19. B8 - Data input/output pin
  20. A8 - Data input/output pin

Functional Features

  • Bidirectional data transfer between two buses
  • Non-inverting level shifting
  • High-speed operation
  • Low power consumption
  • 3-state outputs for bus isolation

Advantages and Disadvantages

Advantages: - High-speed operation allows for efficient data transfer - Low power consumption helps in reducing energy usage - Bidirectional functionality enables versatile applications - 3-state outputs provide bus isolation capability

Disadvantages: - Limited voltage range (2V to 6V) - Propagation delay may affect real-time applications

Working Principles

The MM74HCT245WMX is a transceiver IC that facilitates bidirectional data transfer between two buses. It operates by receiving data from one bus and transmitting it to the other, or vice versa. The direction of data flow is controlled by the DIR pin. The OE pin enables or disables the outputs, allowing for bus isolation when necessary. The IC operates at high speed with low power consumption, making it suitable for various applications.

Detailed Application Field Plans

The MM74HCT245WMX can be used in a wide range of applications, including:

  1. Microcontroller interfacing
  2. Data communication systems
  3. Industrial automation
  4. Robotics
  5. Automotive electronics
  6. Audio/video equipment
  7. Networking devices

Detailed and Complete Alternative Models

  1. SN74HCT245N - DIP package, similar specifications
  2. CD74HCT245E - PDIP package, similar specifications
  3. 74HCT245D - SOIC package, similar specifications
  4. MC74HCT245AD - TSSOP package, similar specifications

These alternative models offer similar functionality and can be used as replacements for the MM74HCT245WMX depending on specific requirements.

Word count: 346 words

Seznam 10 běžných otázek a odpovědí souvisejících s aplikací MM74HCT245WMX v technických řešeních

Sure! Here are 10 common questions and answers related to the application of MM74HCT245WMX in technical solutions:

  1. Question: What is MM74HCT245WMX?
    - Answer: MM74HCT245WMX is a high-speed octal bus transceiver that can be used for bidirectional level shifting between TTL and CMOS logic levels.

  2. Question: What is the maximum operating voltage for MM74HCT245WMX?
    - Answer: The maximum operating voltage for MM74HCT245WMX is 5.5V.

  3. Question: Can MM74HCT245WMX be used for voltage translation between different logic families?
    - Answer: Yes, MM74HCT245WMX is specifically designed for voltage translation between TTL and CMOS logic families.

  4. Question: What is the maximum data transfer rate supported by MM74HCT245WMX?
    - Answer: MM74HCT245WMX supports a maximum data transfer rate of 25 MHz.

  5. Question: How many bidirectional channels does MM74HCT245WMX have?
    - Answer: MM74HCT245WMX has 8 bidirectional channels.

  6. Question: Can MM74HCT245WMX be used for level shifting between different power supply voltages?
    - Answer: No, MM74HCT245WMX is not suitable for level shifting between different power supply voltages. It is designed for logic level translation only.

  7. Question: What is the input/output voltage range for MM74HCT245WMX?
    - Answer: The input/output voltage range for MM74HCT245WMX is 0V to VCC.

  8. Question: Does MM74HCT245WMX have any built-in protection features?
    - Answer: Yes, MM74HCT245WMX has built-in diode protection to prevent damage from static discharge.

  9. Question: Can MM74HCT245WMX be used in both parallel and serial communication applications?
    - Answer: Yes, MM74HCT245WMX can be used in both parallel and serial communication applications, depending on the specific requirements.

  10. Question: What is the package type for MM74HCT245WMX?
    - Answer: MM74HCT245WMX is available in a 20-pin wide SOIC (Small Outline Integrated Circuit) package.

Please note that these answers are general and may vary based on the specific application and requirements. It is always recommended to refer to the datasheet and consult with technical experts for accurate information.