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SN74ABT16821DL
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SN74ABT16821DL

Overview

  • Category: Integrated Circuit
  • Use: Logic Device
  • Characteristics: High-speed, low-power, 20-bit bus interface flip-flop with 3-state outputs
  • Package: TSSOP (Thin Shrink Small Outline Package)
  • Essence: Provides a reliable and efficient solution for bus interfacing applications
  • Packaging/Quantity: Available in reels of 2500 units

Specifications

  • Technology: Advanced BiCMOS
  • Supply Voltage: 4.5V to 5.5V
  • Operating Temperature Range: -40°C to 85°C
  • Input/Output Type: TTL Compatible
  • Output Drive Capability: ±24mA
  • Propagation Delay: 2.8ns (typical)
  • Output Transition Time: 2.5ns (typical)
  • Power Dissipation: 500mW (max)

Pin Configuration

The SN74ABT16821DL has a 56-pin TSSOP package with the following pin configuration:

  1. OE (Output Enable) 1
  2. Q0 (Output) 0
  3. D0 (Data) 0
  4. D1 (Data) 1
  5. GND (Ground)
  6. D2 (Data) 2
  7. D3 (Data) 3
  8. VCC (Supply Voltage)
  9. Q1 (Output) 1
  10. Q2 (Output) 2
  11. Q3 (Output) 3
  12. Q4 (Output) 4
  13. Q5 (Output) 5
  14. Q6 (Output) 6
  15. Q7 (Output) 7
  16. Q8 (Output) 8
  17. Q9 (Output) 9
  18. Q10 (Output) 10
  19. Q11 (Output) 11
  20. Q12 (Output) 12
  21. Q13 (Output) 13
  22. Q14 (Output) 14
  23. Q15 (Output) 15
  24. Q16 (Output) 16
  25. Q17 (Output) 17
  26. Q18 (Output) 18
  27. Q19 (Output) 19
  28. GND (Ground)
  29. OE (Output Enable) 2
  30. D19 (Data) 19
  31. D18 (Data) 18
  32. D17 (Data) 17
  33. D16 (Data) 16
  34. D15 (Data) 15
  35. D14 (Data) 14
  36. D13 (Data) 13
  37. D12 (Data) 12
  38. D11 (Data) 11
  39. D10 (Data) 10
  40. D9 (Data) 9
  41. D8 (Data) 8
  42. D7 (Data) 7
  43. D6 (Data) 6
  44. D5 (Data) 5
  45. D4 (Data) 4
  46. VCC (Supply Voltage)
  47. GND (Ground)
  48. Q20 (Output) 20
  49. Q21 (Output) 21
  50. Q22 (Output) 22
  51. Q23 (Output) 23
  52. Q24 (Output) 24
  53. Q25 (Output) 25
  54. Q26 (Output) 26
  55. Q27 (Output) 27
  56. OE (Output Enable) 3

Functional Features

  • High-speed operation: The SN74ABT16821DL is designed to operate at high frequencies, making it suitable for applications requiring fast data transfer.
  • 3-state outputs: The device features 3-state outputs, allowing multiple devices to share a common bus without interference.
  • TTL compatibility: The input and output levels are compatible with TTL logic, ensuring seamless integration with existing systems.
  • Low power consumption: The integrated circuit is designed to minimize power consumption, making it energy-efficient.

Advantages and Disadvantages

Advantages: - High-speed operation enables efficient data transfer. - 3-state outputs allow for easy bus sharing. - TTL compatibility ensures compatibility with existing systems. - Low power consumption reduces energy usage.

Disadvantages: - Limited number of output pins (28) may restrict certain applications requiring more outputs. - Requires careful handling due to its small package size.

Working Principles

The SN74ABT16821DL is a 20-bit bus interface flip-flop that operates based on advanced BiCMOS technology. It utilizes flip-flops to store and synchronize data, enabling reliable data transfer between different parts of a system. The device

Seznam 10 běžných otázek a odpovědí souvisejících s aplikací SN74ABT16821DL v technických řešeních

Sure! Here are 10 common questions and answers related to the application of SN74ABT16821DL:

  1. Q: What is SN74ABT16821DL? A: SN74ABT16821DL is a 20-bit bus interface flip-flop with 3-state outputs, commonly used in digital systems.

  2. Q: What is the operating voltage range for SN74ABT16821DL? A: The operating voltage range for SN74ABT16821DL is typically between 4.5V and 5.5V.

  3. Q: What is the maximum clock frequency supported by SN74ABT16821DL? A: SN74ABT16821DL can support clock frequencies up to 100 MHz.

  4. Q: How many 3-state outputs does SN74ABT16821DL have? A: SN74ABT16821DL has 20 3-state outputs, one for each bit of the input data.

  5. Q: Can SN74ABT16821DL be used as a buffer? A: Yes, SN74ABT16821DL can be used as a buffer to drive external loads.

  6. Q: What is the power supply current consumption of SN74ABT16821DL? A: The power supply current consumption of SN74ABT16821DL is typically around 50 mA.

  7. Q: Does SN74ABT16821DL have any built-in protection features? A: Yes, SN74ABT16821DL has built-in ESD (Electrostatic Discharge) protection on all inputs and outputs.

  8. Q: Can SN74ABT16821DL be cascaded to increase the number of bits? A: Yes, multiple SN74ABT16821DL chips can be cascaded to increase the number of bits in the bus.

  9. Q: What is the typical propagation delay of SN74ABT16821DL? A: The typical propagation delay of SN74ABT16821DL is around 5 ns.

  10. Q: Is SN74ABT16821DL compatible with other logic families? A: Yes, SN74ABT16821DL is compatible with a wide range of logic families, including TTL and CMOS.

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