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SN74LVC8T245DBRG4
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SN74LVC8T245DBRG4

Overview

  • Category: Integrated Circuit (IC)
  • Use: Level Shifter and Voltage Translator
  • Characteristics: Low-voltage, high-speed, 8-bit bidirectional voltage-level translator
  • Package: VQFN-48
  • Essence: Translates signals between different voltage levels in electronic circuits
  • Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

  • Supply Voltage Range: 1.65V to 5.5V
  • High-Level Input Voltage: 2V to VCC + 0.5V
  • Low-Level Input Voltage: -0.5V to 0.8V
  • High-Level Output Voltage: VCC - 0.5V
  • Low-Level Output Voltage: 0.5V
  • Maximum Operating Frequency: 100 MHz
  • Number of Channels: 8
  • Input/Output Type: Bidirectional

Pin Configuration

The SN74LVC8T245DBRG4 has a total of 48 pins. The pin configuration is as follows:

  1. OE (Output Enable) 1
  2. A1 (Data Input/Output) 1
  3. B1 (Data Input/Output) 1
  4. GND (Ground)
  5. B2 (Data Input/Output) 2
  6. A2 (Data Input/Output) 2
  7. VCC (Supply Voltage)
  8. OE (Output Enable) 2
  9. A3 (Data Input/Output) 3
  10. B3 (Data Input/Output) 3
  11. A4 (Data Input/Output) 4
  12. B4 (Data Input/Output) 4
  13. A5 (Data Input/Output) 5
  14. B5 (Data Input/Output) 5
  15. A6 (Data Input/Output) 6
  16. B6 (Data Input/Output) 6
  17. A7 (Data Input/Output) 7
  18. B7 (Data Input/Output) 7
  19. A8 (Data Input/Output) 8
  20. B8 (Data Input/Output) 8
  21. VCC (Supply Voltage)
  22. GND (Ground)
  23. DIR (Direction Control)
  24. OE (Output Enable) 3
  25. A1 (Data Input/Output) 1
  26. B1 (Data Input/Output) 1
  27. GND (Ground)
  28. B2 (Data Input/Output) 2
  29. A2 (Data Input/Output) 2
  30. VCC (Supply Voltage)
  31. OE (Output Enable) 4
  32. A3 (Data Input/Output) 3
  33. B3 (Data Input/Output) 3
  34. A4 (Data Input/Output) 4
  35. B4 (Data Input/Output) 4
  36. A5 (Data Input/Output) 5
  37. B5 (Data Input/Output) 5
  38. A6 (Data Input/Output) 6
  39. B6 (Data Input/Output) 6
  40. A7 (Data Input/Output) 7
  41. B7 (Data Input/Output) 7
  42. A8 (Data Input/Output) 8
  43. B8 (Data Input/Output) 8
  44. VCC (Supply Voltage)
  45. GND (Ground)
  46. DIR (Direction Control)
  47. OE (Output Enable) 3
  48. GND (Ground)

Functional Features

  • Bidirectional voltage-level translation between two different voltage domains.
  • Supports both push-pull and open-drain output configurations.
  • Allows voltage translation from a lower voltage to a higher voltage and vice versa.
  • Enables interfacing between devices operating at different voltage levels.

Advantages and Disadvantages

Advantages: - Wide supply voltage range allows compatibility with various systems. - High-speed operation enables efficient data transfer. - Bidirectional capability simplifies circuit design. - Small package size saves board space.

Disadvantages: - Limited maximum operating frequency compared to some other models. - May require additional external components for certain applications. - Not suitable for voltage translation involving very high voltage differences.

Working Principles

The SN74LVC8T245DBRG4 is designed using CMOS technology, allowing it to operate at low voltages while providing high-speed performance. It consists of eight bidirectional channels that can translate signals between two voltage domains. The direction of translation is controlled by the DIR pin. When DIR is set to logic high, the translation is from A-side to B

Enumere 10 preguntas y respuestas comunes relacionadas con la aplicación de SN74LVC8T245DBRG4 en soluciones técnicas

Sure! Here are 10 common questions and answers related to the application of SN74LVC8T245DBRG4 in technical solutions:

  1. Q: What is SN74LVC8T245DBRG4? A: SN74LVC8T245DBRG4 is a bidirectional voltage level translator and voltage-level shifter integrated circuit (IC) manufactured by Texas Instruments.

  2. Q: What is the purpose of SN74LVC8T245DBRG4? A: SN74LVC8T245DBRG4 is used to translate logic levels between different voltage domains, allowing communication between devices operating at different voltage levels.

  3. Q: What voltage levels can SN74LVC8T245DBRG4 handle? A: SN74LVC8T245DBRG4 can handle voltage levels ranging from 1.65V to 5.5V.

  4. Q: How many channels does SN74LVC8T245DBRG4 have? A: SN74LVC8T245DBRG4 has 8 bidirectional channels, allowing for simultaneous translation of up to 8 signals.

  5. Q: Can SN74LVC8T245DBRG4 be used with both digital and analog signals? A: No, SN74LVC8T245DBRG4 is designed for digital signals only and should not be used with analog signals.

  6. Q: What is the maximum data transfer rate supported by SN74LVC8T245DBRG4? A: SN74LVC8T245DBRG4 supports data transfer rates up to 100 Mbps.

  7. Q: Is SN74LVC8T245DBRG4 suitable for level shifting in I2C or SPI communication? A: Yes, SN74LVC8T245DBRG4 is commonly used for level shifting in I2C and SPI communication due to its bidirectional capability.

  8. Q: Can SN74LVC8T245DBRG4 be used in both 3.3V and 5V systems? A: Yes, SN74LVC8T245DBRG4 is compatible with both 3.3V and 5V systems, making it versatile for various applications.

  9. Q: Does SN74LVC8T245DBRG4 require external pull-up or pull-down resistors? A: Yes, SN74LVC8T245DBRG4 requires external pull-up or pull-down resistors on the input and output lines for proper operation.

  10. Q: What package does SN74LVC8T245DBRG4 come in? A: SN74LVC8T245DBRG4 is available in a 20-pin VQFN (Very Thin Quad Flat No-Lead) package.

Please note that these answers are general and may vary depending on specific application requirements.