Encyclopedia Entry: 74AC16245DLRG4

Product Information Overview

Category: Integrated Circuit (IC)

Use: The 74AC16245DLRG4 is a high-speed, octal bus transceiver with 3-state outputs. It is designed for asynchronous communication between data buses.

Characteristics: - High-speed operation - 3-state outputs for bus sharing - Wide operating voltage range - Low power consumption - ESD protection on all inputs and outputs

Package: The 74AC16245DLRG4 is available in a 48-pin SSOP package.

Essence: This IC serves as a bidirectional buffer, allowing data to flow in both directions between two buses. It enables efficient data transfer and sharing between different parts of a system.

Packaging/Quantity: The 74AC16245DLRG4 is typically sold in reels containing 250 units.

Specifications

• Supply Voltage Range: 2V to 6V
• Input Voltage Range: 0V to VCC
• Output Voltage Range: 0V to VCC
• Operating Temperature Range: -40°C to +85°C
• Propagation Delay Time: 5.5ns (max)
• Output Current: ±24mA

Detailed Pin Configuration

The 74AC16245DLRG4 has a total of 48 pins, divided into four groups of 12 pins each. The pin configuration is as follows:

Group A: 1. OE (Output Enable) 1 2. A1 (Data Bus A) 1 3. A2 (Data Bus A) 2 4. A3 (Data Bus A) 3 5. A4 (Data Bus A) 4 6. A5 (Data Bus A) 5 7. A6 (Data Bus A) 6 8. A7 (Data Bus A) 7 9. GND (Ground) 10. VCC (Supply Voltage) 11. B7 (Data Bus B) 7 12. B6 (Data Bus B) 6

Group B: 13. B5 (Data Bus B) 5 14. B4 (Data Bus B) 4 15. B3 (Data Bus B) 3 16. B2 (Data Bus B) 2 17. B1 (Data Bus B) 1 18. OE (Output Enable) 2 19. DIR (Direction Control) 20. GND (Ground) 21. VCC (Supply Voltage) 22. A8 (Data Bus A) 8 23. A9 (Data Bus A) 9 24. A10 (Data Bus A) 10

Group C: 25. A11 (Data Bus A) 11 26. A12 (Data Bus A) 12 27. GND (Ground) 28. VCC (Supply Voltage) 29. B12 (Data Bus B) 12 30. B11 (Data Bus B) 11 31. B10 (Data Bus B) 10 32. B9 (Data Bus B) 9 33. B8 (Data Bus B) 8 34. OE (Output Enable) 3 35. DIR (Direction Control)

Group D: 36. GND (Ground) 37. VCC (Supply Voltage) 38. A19 (Data Bus A) 19 39. A18 (Data Bus A) 18 40. A17 (Data Bus A) 17 41. A16 (Data Bus A) 16 42. A15 (Data Bus A) 15 43. A14 (Data Bus A) 14 44. A13 (Data Bus A) 13 45. B13 (Data Bus B) 13 46. B14 (Data Bus B) 14 47. B15 (Data Bus B) 15 48. GND (Ground)

Functional Features

• Bidirectional data transfer between two buses
• 3-state outputs for bus sharing
• Output enable control for flexible operation
• Direction control for controlling data flow direction
• High-speed operation for efficient data transfer
• ESD protection on all inputs and outputs for enhanced reliability

Advantages and Disadvantages

Advantages: - High-speed operation enables fast data transfer - 3-state outputs allow multiple devices to share the same bus - Wide operating voltage range provides flexibility in different systems - Low power consumption for energy efficiency - ESD protection enhances reliability in harsh environments

Disadvantages: - Limited number of data bus lines (16 in total) - Requires careful handling due to sensitivity to electrostatic discharge