Texas Instruments
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SN74AVC20T245DGG
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SN74AVC20T245DGG

Product Overview

  • Category: Integrated Circuit
  • Use: Level Shifter and Translator
  • Characteristics: Bi-directional voltage level shifter with 20-bit wide input/output bus and 3-state outputs
  • Package: TSSOP (Thin Shrink Small Outline Package)
  • Essence: Translates signals between different voltage levels in digital systems
  • Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

  • Supply Voltage Range: 1.2V to 3.6V
  • Input Voltage Range: 0V to VCC
  • Output Voltage Range: 0V to VCC
  • Maximum Operating Frequency: 100 MHz
  • Number of Channels: 20
  • Output Drive Capability: ±24 mA
  • Low Power Consumption: ICC = 10 µA (Max)

Detailed Pin Configuration

The SN74AVC20T245DGG has a total of 56 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. OE (Output Enable) 2
  8. VCC (Supply Voltage)
  9. DIR (Direction Control)
  10. A3 (Data Input/Output) 3
  11. B3 (Data Input/Output) 3
  12. OE (Output Enable) 3
  13. GND (Ground)
  14. B4 (Data Input/Output) 4
  15. A4 (Data Input/Output) 4
  16. OE (Output Enable) 4
  17. VCC (Supply Voltage)
  18. DIR (Direction Control)
  19. A5 (Data Input/Output) 5
  20. B5 (Data Input/Output) 5
  21. OE (Output Enable) 5
  22. GND (Ground)
  23. B6 (Data Input/Output) 6
  24. A6 (Data Input/Output) 6
  25. OE (Output Enable) 6
  26. VCC (Supply Voltage)
  27. DIR (Direction Control)
  28. A7 (Data Input/Output) 7
  29. B7 (Data Input/Output) 7
  30. OE (Output Enable) 7
  31. GND (Ground)
  32. B8 (Data Input/Output) 8
  33. A8 (Data Input/Output) 8
  34. OE (Output Enable) 8
  35. VCC (Supply Voltage)
  36. DIR (Direction Control)
  37. A9 (Data Input/Output) 9
  38. B9 (Data Input/Output) 9
  39. OE (Output Enable) 9
  40. GND (Ground)
  41. B10 (Data Input/Output) 10
  42. A10 (Data Input/Output) 10
  43. OE (Output Enable) 10
  44. VCC (Supply Voltage)
  45. DIR (Direction Control)
  46. A11 (Data Input/Output) 11
  47. B11 (Data Input/Output) 11
  48. OE (Output Enable) 11
  49. GND (Ground)
  50. B12 (Data Input/Output) 12
  51. A12 (Data Input/Output) 12
  52. OE (Output Enable) 12
  53. VCC (Supply Voltage)
  54. DIR (Direction Control)
  55. A13 (Data Input/Output) 13
  56. B13 (Data Input/Output) 13

Functional Features

  • Bi-directional voltage level shifting between different voltage domains
  • Wide input/output bus of 20 bits
  • 3-state outputs for easy interfacing with other devices
  • Low power consumption for energy-efficient operation
  • High-speed operation with a maximum frequency of 100 MHz
  • Robust output drive capability for driving capacitive loads

Advantages and Disadvantages

Advantages: - Allows seamless integration of digital systems operating at different voltage levels - Provides bidirectional signal translation, simplifying system design - Supports high-speed data transmission up to 100 MHz - Low power consumption helps in reducing overall system energy requirements

Disadvantages: - Limited to a maximum of 20-bit wide bus - Requires careful consideration of voltage compatibility between input and output domains

Working Principles

The SN74AVC20T245DGG is designed to translate signals between different voltage levels in digital systems. It uses a combination of level shifters

Liste 10 almindelige spørgsmål og svar relateret til anvendelsen af SN74AVC20T245DGG i tekniske løsninger

Sure! Here are 10 common questions and answers related to the application of SN74AVC20T245DGG in technical solutions:

  1. Q: What is SN74AVC20T245DGG? A: SN74AVC20T245DGG is a bidirectional voltage level translator and voltage-level shifter integrated circuit (IC) manufactured by Texas Instruments.

  2. Q: What is the purpose of SN74AVC20T245DGG? A: SN74AVC20T245DGG is designed to translate signals between different voltage levels, making it useful for interfacing between devices operating at different voltage levels.

  3. Q: What voltage levels can SN74AVC20T245DGG handle? A: SN74AVC20T245DGG can handle voltage levels ranging from 1.2V to 3.6V on the A-side and 1.65V to 5.5V on the B-side.

  4. Q: How many channels does SN74AVC20T245DGG have? A: SN74AVC20T245DGG has 20 bidirectional channels, allowing for simultaneous translation of multiple signals.

  5. Q: Can SN74AVC20T245DGG be used for level shifting between different logic families? A: Yes, SN74AVC20T245DGG can be used for level shifting between different logic families, such as CMOS and TTL.

  6. Q: What is the maximum data rate supported by SN74AVC20T245DGG? A: SN74AVC20T245DGG supports data rates up to 100 Mbps, making it suitable for various high-speed communication applications.

  7. Q: Does SN74AVC20T245DGG require external pull-up or pull-down resistors? A: No, SN74AVC20T245DGG has built-in pull-up and pull-down resistors, eliminating the need for external components in most cases.

  8. Q: Can SN74AVC20T245DGG be used in both 3.3V and 5V systems? A: Yes, SN74AVC20T245DGG is compatible with both 3.3V and 5V systems, allowing for seamless integration into different environments.

  9. Q: Is SN74AVC20T245DGG suitable for bidirectional communication? A: Yes, SN74AVC20T245DGG supports bidirectional data transfer, making it ideal for applications where data needs to flow in both directions.

  10. Q: What package options are available for SN74AVC20T245DGG? A: SN74AVC20T245DGG is available in various package options, including TSSOP, VFBGA, and TVSOP, providing flexibility for different PCB layouts and space constraints.

Please note that these answers are general and may vary depending on specific application requirements. It's always recommended to refer to the datasheet and consult the manufacturer for detailed information.