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DM74AS245SJX
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DM74AS245SJX

Basic Information Overview

  • Category: Integrated Circuit (IC)
  • Use: Signal level shifting and bus interface
  • Characteristics: High-speed, bidirectional, non-inverting, 8-bit transceiver
  • Package: Small Outline Integrated Circuit (SOIC)
  • Essence: Transfers data between two bidirectional buses with different voltage levels
  • Packaging/Quantity: Available in reels of 2500 pieces

Specifications

  • Supply Voltage Range: 4.5V to 5.5V
  • Input Voltage Range: 0V to VCC
  • Output Voltage Range: 0V to VCC
  • Operating Temperature Range: -40°C to +85°C
  • Propagation Delay Time: 9ns (max)
  • Output Current: ±24mA

Detailed Pin Configuration

  1. A1: Data Input/Output for Port A
  2. B1: Data Input/Output for Port B
  3. GND: Ground
  4. A2: Data Input/Output for Port A
  5. A3: Data Input/Output for Port A
  6. A4: Data Input/Output for Port A
  7. A5: Data Input/Output for Port A
  8. VCC: Positive Power Supply
  9. B5: Data Input/Output for Port B
  10. B4: Data Input/Output for Port B
  11. B3: Data Input/Output for Port B
  12. B2: Data Input/Output for Port B
  13. OE: Output Enable/Input Enable
  14. DIR: Direction Control
  15. B6: Data Input/Output for Port B
  16. A6: Data Input/Output for Port A

Functional Features

  • Bidirectional data transfer between two buses with different voltage levels
  • Non-inverting logic translation
  • High-speed operation
  • Output enable and direction control for flexible data flow management

Advantages

  • Allows interfacing between systems operating at different voltage levels
  • Provides reliable and efficient data transfer
  • Supports high-speed communication
  • Compact package size for space-constrained applications

Disadvantages

  • Limited to 8-bit data transfer
  • Requires careful consideration of voltage level compatibility

Working Principles

The DM74AS245SJX is a bidirectional transceiver that facilitates the transfer of data between two buses with different voltage levels. It operates by using non-inverting logic translation, allowing seamless communication between systems operating at varying voltage ranges. The output enable (OE) and direction control (DIR) pins provide flexibility in managing the flow of data.

Detailed Application Field Plans

  1. Microcontroller interfacing with external devices
  2. Communication between different logic families
  3. Level shifting in mixed-voltage systems
  4. Bus interface in industrial automation
  5. Data transfer in automotive electronics

Detailed and Complete Alternative Models

  1. SN74LV245A: Low-voltage octal bus transceiver
  2. CD74HCT245: High-speed CMOS logic level shifter
  3. MC74VHC245: Octal bus transceiver with 3-state outputs
  4. 74LVC245A: Low-voltage CMOS transceiver with 5V tolerance

Note: This entry provides an overview of the DM74AS245SJX integrated circuit, including its basic information, specifications, pin configuration, functional features, advantages, disadvantages, working principles, application field plans, and alternative models.

Lista 10 Vanliga frågor och svar relaterade till tillämpningen av DM74AS245SJX i tekniska lösningar

Sure! Here are 10 common questions and answers related to the application of DM74AS245SJX in technical solutions:

  1. Q: What is DM74AS245SJX? A: DM74AS245SJX is a type of integrated circuit (IC) commonly used as a bidirectional transceiver for transferring data between different voltage levels.

  2. Q: What are the key features of DM74AS245SJX? A: Some key features of DM74AS245SJX include 8-bit bidirectional data transfer, voltage level translation, and compatibility with TTL logic.

  3. Q: How does DM74AS245SJX perform voltage level translation? A: DM74AS245SJX uses its internal circuitry to convert signals between two different voltage levels, allowing communication between devices operating at different voltages.

  4. Q: What is the maximum data transfer rate supported by DM74AS245SJX? A: The maximum data transfer rate supported by DM74AS245SJX is typically around 125 MHz.

  5. Q: Can DM74AS245SJX be used in both parallel and serial data transfer applications? A: Yes, DM74AS245SJX can be used in both parallel and serial data transfer applications, depending on the specific requirements of the system.

  6. Q: Is DM74AS245SJX compatible with CMOS logic? A: No, DM74AS245SJX is not compatible with CMOS logic. It is specifically designed for use with TTL logic.

  7. Q: What is the power supply voltage range for DM74AS245SJX? A: The power supply voltage range for DM74AS245SJX is typically between 4.5V and 5.5V.

  8. Q: Can DM74AS245SJX be used in automotive applications? A: Yes, DM74AS245SJX is suitable for use in automotive applications as long as the operating conditions and temperature range are within its specified limits.

  9. Q: Does DM74AS245SJX have any built-in protection features? A: DM74AS245SJX does not have built-in protection features. It is important to ensure that the device is properly protected against voltage spikes or other potential hazards.

  10. Q: Are there any specific precautions to consider when using DM74AS245SJX? A: Some precautions to consider when using DM74AS245SJX include proper grounding, avoiding excessive input voltages, and adhering to the recommended operating conditions mentioned in the datasheet.

Please note that the answers provided here are general and may vary depending on the specific application and requirements. It is always recommended to refer to the manufacturer's datasheet and guidelines for accurate information.