SN74ALVTH16821DLR

Product Overview

• Category: Integrated Circuit (IC)
• Use: Logic Level Translator
• Characteristics: High-speed, low-voltage, 18-bit bus transceiver
• Package: Datasheet refers to TSSOP package
• Essence: Translates signals between different voltage levels in digital systems
• Packaging/Quantity: Available in reels or tubes, quantity varies based on supplier

Specifications

• Supply Voltage Range: 1.2V to 3.6V
• Input Voltage Range: 0V to VCC
• Output Voltage Range: 0V to VCC
• Operating Temperature Range: -40°C to +85°C
• Propagation Delay: 2.5ns (typical)
• Output Drive Strength: ±24mA
• ESD Protection: >2000V (Human Body Model)

Detailed Pin Configuration

The SN74ALVTH16821DLR has a total of 56 pins. The pin configuration is as follows:

1. OE1B
2. A1
3. B1
4. Y1
5. GND
6. Y2
7. B2
8. A2
9. OE2B
10. VCC
11. OE1A
12. A1
13. B1
14. Y1
15. GND
16. Y2
17. B2
18. A2
19. OE2A
20. VCC
21. OE1B
22. A1
23. B1
24. Y1
25. GND
26. Y2
27. B2
28. A2
29. OE2B
30. VCC
31. OE1A
32. A1
33. B1
34. Y1
35. GND
36. Y2
37. B2
38. A2
39. OE2A
40. VCC
41. OE1B
42. A1
43. B1
44. Y1
45. GND
46. Y2
47. B2
48. A2
49. OE2B
50. VCC
51. OE1A
52. A1
53. B1
54. Y1
55. GND
56. Y2

Functional Features

• Bidirectional voltage level translation between 1.2V and 3.6V
• Supports high-speed data transmission up to 400Mbps
• Provides 18-bit bus transceiver functionality
• Enables seamless integration of devices operating at different voltage levels

Advantages and Disadvantages

Advantages: - Wide supply voltage range allows compatibility with various systems - High-speed operation enhances overall system performance - Bidirectional communication simplifies design complexity - ESD protection ensures robustness against electrostatic discharge

Disadvantages: - Limited to 18-bit bus transceiver functionality - Requires careful consideration of voltage level compatibility in mixed-voltage systems

Working Principles

The SN74ALVTH16821DLR utilizes a combination of CMOS and BiCMOS technologies to achieve bidirectional voltage level translation. It employs a voltage divider network and level-shifting circuitry to convert signals between the low-voltage domain (1.2V) and the high-voltage domain (3.6V). The device operates by enabling the appropriate output buffers based on the control signals provided.

Detailed Application Field Plans

The SN74ALVTH16821DLR finds applications in various digital systems where voltage level translation is required. Some potential application fields include:

1. Microcontrollers and microprocessors
2. Memory interfaces
3. Communication systems
4. Industrial automation
5. Automotive electronics

Detailed and Complete Alternative Models

1. SN74LVC1T45DBVR: Single-bit voltage level translator with 3-state output
2. SN74AVC4T245PW: Quad-bit voltage level translator with 3-state output
3. SN74LVCH16244ADGGR: 16-bit voltage level translator with 3-state output
4. SN74LVC8T245PWR: Octal-bit voltage level translator with 3-state output
5. SN74AVC4T774PW: Quad-bit voltage level translator with dual supply voltage support

These alternative models offer similar functionality and can be considered based on specific system requirements.

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