SN74ALVCH162835DL

Product Overview

• Category: Integrated Circuit (IC)
• Use: Logic Level Translator
• Characteristics: High-speed, low-voltage, 18-bit universal bus driver with 3-state outputs
• Package: TSSOP-56
• Essence: Logic level translation between different voltage domains
• 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: 400 MHz
• Number of Inputs/Outputs: 18
• Output Drive Strength: ±24 mA
• Propagation Delay: 2.5 ns (typical)

Detailed Pin Configuration

The SN74ALVCH162835DL has a total of 56 pins in the TSSOP package. The pin configuration is as follows:

1. OE1
2. A1
3. B1
4. Y1
5. GND
6. Y2
7. B2
8. A2
9. OE2
10. VCC
11. Y3
12. B3
13. A3
14. OE3
15. Y4
16. B4
17. A4
18. OE4
19. Y5
20. B5
21. A5
22. OE5
23. Y6
24. B6
25. A6
26. OE6
27. Y7
28. B7
29. A7
30. OE7
31. Y8
32. B8
33. A8
34. OE8
35. Y9
36. B9
37. A9
38. OE9
39. Y10
40. B10
41. A10
42. OE10
43. Y11
44. B11
45. A11
46. OE11
47. Y12
48. B12
49. A12
50. OE12
51. Y13
52. B13
53. A13
54. OE13
55. Y14
56. VCC

Functional Features

• Bidirectional voltage translation between different logic levels
• Supports translation between 1.2V, 1.5V, 1.8V, 2.5V, and 3.3V systems
• Provides 3-state outputs for bus-oriented applications
• High-speed operation with minimal propagation delay
• Low power consumption

Advantages and Disadvantages

Advantages: - Wide supply voltage range allows compatibility with various systems - High-speed operation enables efficient data transfer - 3-state outputs facilitate bus sharing and reduce contention issues - Low power consumption helps in energy-efficient designs

Disadvantages: - Limited to 18-bit bus width - Not suitable for applications requiring higher voltage translation

Working Principles

The SN74ALVCH162835DL is designed to translate logic levels between different voltage domains. It uses a combination of MOSFETs and CMOS technology to achieve bidirectional voltage translation. The inputs are compatible with both TTL and CMOS logic levels, while the outputs can drive both CMOS and TTL loads.

The device operates by monitoring the input voltage levels and translating them to the corresponding output voltage levels based on the specified supply voltage range. When the enable (OE) pin is active, the device allows data transmission between the input and output sides. When the OE pin is inactive, the outputs are in a high-impedance state, effectively disconnecting the input and output sides.

Detailed Application Field Plans

The SN74ALVCH162835DL is commonly used in various applications that require logic level translation between different voltage domains. Some of the typical application fields include:

1. Microcontroller interfacing with different peripheral devices operating at different voltage levels
2. Communication systems involving multiple voltage domains, such as UART, SPI, or I2C interfaces
3. Memory modules where data transfer occurs between different voltage-based memory devices
4. Industrial automation systems requiring signal conversion between different logic levels
5. Automotive electronics for voltage translation between different components

Detailed and Complete Alternative Models

1. SN74LVC1T45: Single-bit voltage level translator with 3-state output
2. SN74AVC4T245: Quad-bit voltage level translator with 3-state output
3. SN74LVCH16244A: 16-bit voltage level translator with 3-state output
4. SN74LVC8T245: Octal-bit voltage level translator with 3-state output
5. SN74AVC