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SN74AVCH20T245VR
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SN74AVCH20T245VR

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Level Shifter and Voltage Translator
  • Characteristics: Bi-directional, 20-bit, 3.3V to 5V voltage translation
  • Package: 56-pin VQFN package
  • Essence: Translates signals between different voltage levels
  • Packaging/Quantity: Available in reels of 2500 units

Specifications

  • Number of Bits: 20
  • Input Voltage Range: 1.2V to 3.6V
  • Output Voltage Range: 1.65V to 5.5V
  • Operating Temperature Range: -40°C to +85°C
  • Supply Voltage: 1.2V to 3.6V
  • Supply Current: 10μA (typical)

Detailed Pin Configuration

The SN74AVCH20T245VR has a total of 56 pins. The pin configuration is as follows:

  1. OE (Output Enable) 1
  2. A1 (Input/Output) 1
  3. B1 (Input/Output) 1
  4. GND (Ground)
  5. B2 (Input/Output) 2
  6. A2 (Input/Output) 2
  7. VCCA (Supply Voltage) 1
  8. VCCB (Supply Voltage) 2
  9. DIR (Direction Control)
  10. OE (Output Enable) 2
  11. A3 (Input/Output) 3
  12. B3 (Input/Output) 3
  13. GND (Ground)
  14. B4 (Input/Output) 4
  15. A4 (Input/Output) 4
  16. VCCA (Supply Voltage) 3
  17. VCCB (Supply Voltage) 4
  18. DIR (Direction Control)
  19. OE (Output Enable) 3
  20. A5 (Input/Output) 5
  21. B5 (Input/Output) 5
  22. GND (Ground)
  23. B6 (Input/Output) 6
  24. A6 (Input/Output) 6
  25. VCCA (Supply Voltage) 5
  26. VCCB (Supply Voltage) 6
  27. DIR (Direction Control)
  28. OE (Output Enable) 4
  29. A7 (Input/Output) 7
  30. B7 (Input/Output) 7
  31. GND (Ground)
  32. B8 (Input/Output) 8
  33. A8 (Input/Output) 8
  34. VCCA (Supply Voltage) 7
  35. VCCB (Supply Voltage) 8
  36. DIR (Direction Control)
  37. OE (Output Enable) 5
  38. A9 (Input/Output) 9
  39. B9 (Input/Output) 9
  40. GND (Ground)
  41. B10 (Input/Output) 10
  42. A10 (Input/Output) 10
  43. VCCA (Supply Voltage) 9
  44. VCCB (Supply Voltage) 10
  45. DIR (Direction Control)
  46. OE (Output Enable) 6
  47. A11 (Input/Output) 11
  48. B11 (Input/Output) 11
  49. GND (Ground)
  50. B12 (Input/Output) 12
  51. A12 (Input/Output) 12
  52. VCCA (Supply Voltage) 11
  53. VCCB (Supply Voltage) 12
  54. DIR (Direction Control)
  55. OE (Output Enable) 7
  56. A13 (Input/Output) 13

Functional Features

  • Bi-directional voltage translation between 3.3V and 5V logic levels.
  • Automatic direction control based on the DIR pin.
  • Output enable pins for each group of inputs/outputs.
  • Low power consumption with a supply current of only 10μA.

Advantages and Disadvantages

Advantages: - Allows seamless communication between different voltage level devices. - Supports bidirectional data transfer. - Wide operating temperature range (-40°C to +85°C). - Low power consumption.

Disadvantages: - Limited to 20-bit voltage translation. - Requires additional external components for proper operation.

Working Principles

The SN74AVCH20T245VR is designed to translate signals between different voltage levels, specifically between 3.3V and 5V logic levels. It utilizes a combination of level shifting circuitry and bi-directional buffers to ensure accurate and reliable voltage translation. The direction of translation is controlled by the DIR pin, which determines whether the

Lista 10 Vanliga frågor och svar relaterade till tillämpningen av SN74AVCH20T245VR i tekniska lösningar

Sure! Here are 10 common questions and answers related to the application of SN74AVCH20T245VR in technical solutions:

  1. Q: What is SN74AVCH20T245VR? A: SN74AVCH20T245VR is a voltage level translator and bus transceiver integrated circuit (IC) manufactured by Texas Instruments.

  2. Q: What is the purpose of SN74AVCH20T245VR? A: SN74AVCH20T245VR is designed to translate signals between different voltage levels, making it suitable for interfacing between devices operating at different voltage levels.

  3. Q: What voltage levels can SN74AVCH20T245VR translate? A: SN74AVCH20T245VR can translate signals between two voltage domains, typically between 1.2V and 3.6V.

  4. Q: How many channels does SN74AVCH20T245VR have? A: SN74AVCH20T245VR has 20 bidirectional channels, allowing for simultaneous translation of multiple signals.

  5. Q: Can SN74AVCH20T245VR handle bi-directional communication? A: Yes, SN74AVCH20T245VR supports bi-directional data transfer, enabling communication between devices in both directions.

  6. Q: What is the maximum data rate supported by SN74AVCH20T245VR? A: SN74AVCH20T245VR can support data rates up to 100 Mbps, making it suitable for various high-speed applications.

  7. Q: Does SN74AVCH20T245VR have any built-in protection features? A: Yes, SN74AVCH20T245VR includes built-in ESD protection, which helps safeguard against electrostatic discharge events.

  8. Q: Can SN74AVCH20T245VR be used in automotive applications? A: Yes, SN74AVCH20T245VR is qualified for automotive applications and meets the necessary industry standards.

  9. Q: What is the power supply voltage range for SN74AVCH20T245VR? A: SN74AVCH20T245VR operates with a power supply voltage range of 1.2V to 3.6V.

  10. Q: Are there any application examples for SN74AVCH20T245VR? A: Yes, SN74AVCH20T245VR can be used in various applications such as mobile devices, industrial automation, consumer electronics, and more, where voltage level translation is required.

Please note that these answers are general and may vary depending on specific design requirements and datasheet specifications.