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SN74BCT29821DWRE4
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SN74BCT29821DWRE4

Product Overview

  • Category: Integrated Circuit
  • Use: Logic Level Shifter
  • Characteristics:
    • High-speed logic level shifting
    • Wide voltage range compatibility
    • Low power consumption
  • Package: SOIC (Small Outline Integrated Circuit)
  • Essence: Logic level shifting between different voltage domains
  • Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

  • Supply Voltage Range: 2 V to 6 V
  • Input Voltage Range (VI): 0 V to VCC
  • Output Voltage Range (VO): 0 V to VCC
  • Operating Temperature Range: -40°C to +85°C
  • Logic Family: BCT (BiCMOS-TTL Compatible)

Detailed Pin Configuration

The SN74BCT29821DWRE4 has a total of 20 pins. The pin configuration is as follows:

  1. OE (Output Enable)
  2. A1 (Input A1)
  3. A2 (Input A2)
  4. A3 (Input A3)
  5. A4 (Input A4)
  6. A5 (Input A5)
  7. A6 (Input A6)
  8. GND (Ground)
  9. B1 (Input B1)
  10. B2 (Input B2)
  11. B3 (Input B3)
  12. B4 (Input B4)
  13. B5 (Input B5)
  14. B6 (Input B6)
  15. V_CC (Supply Voltage)
  16. Y1 (Output Y1)
  17. Y2 (Output Y2)
  18. Y3 (Output Y3)
  19. Y4 (Output Y4)
  20. Y5 (Output Y5)

Functional Features

  • Logic level shifting between two voltage domains
  • High-speed operation for efficient data transfer
  • Wide voltage range compatibility allows interfacing with different logic families
  • Output enable (OE) pin for controlling the output state

Advantages and Disadvantages

Advantages: - High-speed logic level shifting - Wide voltage range compatibility - Low power consumption - Compact SOIC package for space-saving designs

Disadvantages: - Limited number of input/output channels - Not suitable for bidirectional level shifting

Working Principles

The SN74BCT29821DWRE4 is a logic level shifter that enables communication between two voltage domains. It utilizes a combination of BiCMOS and TTL technologies to achieve high-speed operation and wide voltage range compatibility. The inputs from one voltage domain are shifted to the corresponding voltage levels of the other domain, allowing seamless data transfer.

Detailed Application Field Plans

The SN74BCT29821DWRE4 can be used in various applications where logic level shifting is required. Some potential application fields include:

  1. Microcontroller interfacing with different voltage peripherals
  2. Communication interfaces between different logic families
  3. Sensor integration with microcontrollers operating at different voltage levels
  4. Industrial automation systems requiring voltage level translation
  5. Battery-powered devices with multiple voltage domains

Detailed and Complete Alternative Models

  1. SN74LVC4245A: Octal Bus Transceiver with 3-State Outputs
  2. SN74LVCHT245A: Octal Bus Transceiver with 3-State Outputs
  3. SN74AVC4T774: 4-Bit Dual-Supply Bus Transceiver with Configurable Voltage Translation

These alternative models offer similar functionality and can be considered as alternatives to the SN74BCT29821DWRE4 based on specific requirements and design constraints.

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Перечислите 10 распространенных вопросов и ответов, связанных с применением SN74BCT29821DWRE4 в технических решениях.

Sure! Here are 10 common questions and answers related to the application of SN74BCT29821DWRE4:

  1. Q: What is the SN74BCT29821DWRE4? A: The SN74BCT29821DWRE4 is a 8-bit universal shift/storage register with 3-state outputs, commonly used in digital logic circuits.

  2. Q: What is the operating voltage range for SN74BCT29821DWRE4? A: The operating voltage range for SN74BCT29821DWRE4 is typically between 4.5V and 5.5V.

  3. Q: How many inputs and outputs does SN74BCT29821DWRE4 have? A: SN74BCT29821DWRE4 has 8 inputs and 8 outputs.

  4. Q: Can I use SN74BCT29821DWRE4 as a shift register? A: Yes, SN74BCT29821DWRE4 can be used as a shift register by connecting the appropriate clock and data inputs.

  5. Q: What is the maximum clock frequency for SN74BCT29821DWRE4? A: The maximum clock frequency for SN74BCT29821DWRE4 is typically around 25 MHz.

  6. Q: Can SN74BCT29821DWRE4 be cascaded to create larger shift registers? A: Yes, multiple SN74BCT29821DWRE4 chips can be cascaded together to create larger shift registers.

  7. Q: Does SN74BCT29821DWRE4 support 3-state outputs? A: Yes, SN74BCT29821DWRE4 has 3-state outputs, which means the outputs can be disabled or put into a high-impedance state.

  8. Q: What is the power consumption of SN74BCT29821DWRE4? A: The power consumption of SN74BCT29821DWRE4 depends on various factors, but it is generally low.

  9. Q: Can SN74BCT29821DWRE4 be used in both synchronous and asynchronous applications? A: Yes, SN74BCT29821DWRE4 can be used in both synchronous and asynchronous applications, depending on how the clock input is connected.

  10. Q: Is SN74BCT29821DWRE4 suitable for high-speed data transfer applications? A: While SN74BCT29821DWRE4 can handle moderate clock frequencies, it may not be ideal for very high-speed data transfer applications.