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MC74ACT245MG
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MC74ACT245MG

Basic Information Overview

  • Category: Integrated Circuit (IC)
  • Use: Signal Level Shifter
  • Characteristics: High-speed, Non-inverting, Bidirectional
  • Package: 20-pin SOIC (Small Outline Integrated Circuit)
  • Essence: Transfers digital signals between different voltage levels
  • Packaging/Quantity: Tape and Reel, 2500 pieces per reel

Specifications

  • Supply Voltage Range: 2.0V to 6.0V
  • Input Voltage Range: 0V to VCC
  • Output Voltage Range: 0V to VCC
  • Maximum Input Current: ±10mA
  • Maximum Output Current: ±25mA
  • Propagation Delay: 5ns (typical)
  • Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

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

Functional Features

  • Non-inverting bidirectional level shifting
  • Allows interfacing between systems with different voltage levels
  • High-speed operation for efficient signal transfer
  • Output enable control for easy integration into complex systems
  • Wide supply voltage range for versatility

Advantages

  • Enables seamless communication between devices with different voltage levels
  • High-speed operation ensures minimal signal delay
  • Easy integration into existing systems with output enable control
  • Versatile supply voltage range allows compatibility with various power sources

Disadvantages

  • Limited to 8-bit bidirectional level shifting
  • May require additional components for more complex applications
  • Sensitive to electrostatic discharge (ESD) and requires proper handling

Working Principles

The MC74ACT245MG is a non-inverting bidirectional level shifter integrated circuit. It operates by receiving digital signals from one system and transferring them to another system with a different voltage level. The direction of signal transfer is controlled by the DIR pin. When the DIR pin is set to logic high, the data flows from A-side to B-side, and when it is set to logic low, the data flows from B-side to A-side.

Detailed Application Field Plans

  1. Interfacing between microcontrollers operating at different voltage levels
  2. Level shifting in communication protocols such as I2C, SPI, and UART
  3. Signal conversion in mixed-voltage systems
  4. Voltage translation in battery-powered devices
  5. Logic level conversion in industrial automation systems

Detailed and Complete Alternative Models

  1. SN74LVC245A: Low-Voltage CMOS Octal Bus Transceiver
  2. CD4508B: CMOS Dual 4-Bit Latch/4-to-8 Line Decoder
  3. 74HCT245: Octal Bus Transceiver with 3-State Outputs
  4. MAX3378EEUD+: ±15kV ESD-Protected, 460kbps, 3V to 5.5V RS-232 Transceivers
  5. LTC4316IMS#PBF: I2C/SMBus Accelerator with Rise Time Accelerators and High-Speed Buffer

Note: The above alternative models are provided for reference and may have different specifications and pin configurations. It is recommended to consult the respective datasheets for detailed information.

This entry provides an overview of the MC74ACT245MG, a signal level shifter integrated circuit. It includes basic information such as its category, use, characteristics, package, essence, packaging/quantity details, specifications, detailed pin configuration, functional features, advantages and disadvantages, working principles, detailed application field plans, and alternative models.

Senaraikan 10 soalan dan jawapan biasa yang berkaitan dengan aplikasi MC74ACT245MG dalam penyelesaian teknikal

Sure! Here are 10 common questions and answers related to the application of MC74ACT245MG in technical solutions:

  1. Q: What is MC74ACT245MG? A: MC74ACT245MG is a type of octal bus transceiver integrated circuit (IC) that can be used for bidirectional level shifting and voltage translation.

  2. Q: What is the operating voltage range of MC74ACT245MG? A: MC74ACT245MG operates within a voltage range of 4.5V to 5.5V.

  3. Q: How many channels does MC74ACT245MG have? A: MC74ACT245MG has 8 channels, allowing bidirectional data transfer between two buses.

  4. Q: What is the maximum data transfer rate supported by MC74ACT245MG? A: MC74ACT245MG supports a maximum data transfer rate of 24 MHz.

  5. Q: Can MC74ACT245MG handle both TTL and CMOS logic levels? A: Yes, MC74ACT245MG is compatible with both TTL and CMOS logic levels, making it versatile for various applications.

  6. Q: Does MC74ACT245MG have built-in protection against electrostatic discharge (ESD)? A: Yes, MC74ACT245MG is designed with ESD protection to safeguard against damage from static electricity.

  7. Q: Can MC74ACT245MG be used for level shifting between different voltage domains? A: Yes, MC74ACT245MG can be used to shift logic levels between different voltage domains, enabling communication between systems with different voltage requirements.

  8. Q: What is the output drive capability of MC74ACT245MG? A: MC74ACT245MG has a high output drive capability, allowing it to drive heavily loaded buses.

  9. Q: Can MC74ACT245MG be used in both parallel and serial communication systems? A: Yes, MC74ACT245MG can be used in both parallel and serial communication systems, depending on the application requirements.

  10. Q: Are there any specific precautions to consider when using MC74ACT245MG? A: It is important to follow the recommended operating conditions, such as voltage levels and temperature range, provided in the datasheet of MC74ACT245MG. Additionally, proper decoupling capacitors should be used to ensure stable operation.