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SN74ABT16821DLR
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SN74ABT16821DLR

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Digital Logic
  • Characteristics: High-speed, low-power, 20-bit bus interface flip-flop with 3-state outputs
  • Package: 56-pin SSOP (Shrink Small Outline Package)
  • Essence: Flip-flop with 3-state outputs for bus interface applications
  • Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

  • Technology: Advanced BiCMOS
  • Supply Voltage Range: 4.5V to 5.5V
  • Input Voltage Range: 0V to VCC
  • Output Voltage Range: 0V to VCC
  • Operating Temperature Range: -40°C to +85°C
  • Propagation Delay Time: 2.8ns (typical)
  • Output Drive Capability: ±12mA
  • Power Dissipation: 500mW (max)

Detailed Pin Configuration

The SN74ABT16821DLR has a total of 56 pins. The pin configuration is as follows:

  1. OE1
  2. CP1
  3. D1
  4. D2
  5. D3
  6. D4
  7. D5
  8. D6
  9. D7
  10. D8
  11. D9
  12. D10
  13. GND
  14. Q1
  15. Q2
  16. Q3
  17. Q4
  18. Q5
  19. Q6
  20. Q7
  21. Q8
  22. Q9
  23. Q10
  24. VCC
  25. OE2
  26. CP2
  27. D11
  28. D12
  29. D13
  30. D14
  31. D15
  32. D16
  33. D17
  34. D18
  35. D19
  36. D20
  37. GND
  38. Q11
  39. Q12
  40. Q13
  41. Q14
  42. Q15
  43. Q16
  44. Q17
  45. Q18
  46. Q19
  47. Q20
  48. VCC
  49. GND
  50. Q21
  51. Q22
  52. Q23
  53. Q24
  54. Q25
  55. Q26
  56. Q27

Functional Features

  • 20-bit bus interface flip-flop with 3-state outputs
  • High-speed operation, suitable for high-performance applications
  • Low-power consumption, ideal for battery-powered devices
  • 3-state outputs allow multiple devices to share a common bus without interference
  • Advanced BiCMOS technology ensures reliable and efficient operation

Advantages and Disadvantages

Advantages: - High-speed operation enables quick data transfer - Low-power consumption prolongs battery life in portable devices - 3-state outputs facilitate bus sharing among multiple devices

Disadvantages: - Limited number of bits (20) may not be sufficient for certain applications requiring larger data buses - Availability of alternative models with additional features or different pin configurations may be limited

Working Principles

The SN74ABT16821DLR is a flip-flop IC designed for bus interface applications. It stores and transfers data on a 20-bit bus using its internal flip-flop circuitry. The 3-state outputs allow the device to disconnect from the bus when not actively transmitting data, preventing signal interference. The advanced BiCMOS technology used in the IC ensures high-speed operation while maintaining low power consumption.

Detailed Application Field Plans

The SN74ABT16821DLR is commonly used in various digital logic applications, including:

  1. Microprocessors and microcontrollers
  2. Data storage systems
  3. Communication devices
  4. Industrial automation equipment
  5. Automotive electronics

Detailed and Complete Alternative Models

While the SN74ABT16821DLR is a reliable and widely used IC, there are alternative models available with similar functionality. Some notable alternatives include:

  1. SN74ABT16823DLR: 20-bit bus interface flip-flop with 3-state outputs and additional input/output options.
  2. SN74ABT16827DLR: 20-bit bus interface flip-flop with 3-state outputs and enhanced output drive capability.
  3. SN74ABT16841DLR: 20-bit bus interface flip-flop with 3-state outputs and built-in parity generation/checking.

These alternative models offer different features or pin configurations that may better suit specific application requirements.

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10 domande e risposte comuni relative all'applicazione di SN74ABT16821DLR nelle soluzioni tecniche

Sure! Here are 10 common questions and answers related to the application of SN74ABT16821DLR in technical solutions:

  1. Q: What is SN74ABT16821DLR? A: SN74ABT16821DLR 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 SN74ABT16821DLR? A: The operating voltage range for SN74ABT16821DLR is typically between 4.5V and 5.5V.

  3. Q: What is the maximum clock frequency supported by SN74ABT16821DLR? A: SN74ABT16821DLR can support clock frequencies up to 100MHz.

  4. Q: How many 3-state outputs does SN74ABT16821DLR have? A: SN74ABT16821DLR has 20 3-state outputs, one for each bit of the input data.

  5. Q: Can SN74ABT16821DLR be used as a register or latch? A: Yes, SN74ABT16821DLR can be used as a register or latch by connecting the appropriate control signals.

  6. Q: What is the power consumption of SN74ABT16821DLR? A: The power consumption of SN74ABT16821DLR depends on various factors but is generally low due to its CMOS technology.

  7. Q: Can SN74ABT16821DLR be cascaded to increase the number of bits? A: Yes, multiple SN74ABT16821DLR chips can be cascaded together to increase the number of bits in the system.

  8. Q: What is the output drive strength of SN74ABT16821DLR? A: SN74ABT16821DLR has a typical output drive strength of 12mA, allowing it to drive moderate loads.

  9. Q: Does SN74ABT16821DLR have any built-in protection features? A: Yes, SN74ABT16821DLR has built-in ESD (Electrostatic Discharge) protection to safeguard against static electricity damage.

  10. Q: Can SN74ABT16821DLR be used in both commercial and industrial applications? A: Yes, SN74ABT16821DLR is designed to operate reliably in both commercial and industrial temperature ranges.

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