Encyclopedia Entry: 74ALVCH162820GRE4

Product Information Overview

• Category: Integrated Circuit (IC)
• Use: Logic Level Translator
• Characteristics: High-speed, low-power, voltage level shifting
• Package: Green RoHS-compliant package
• Essence: Translates logic levels between different voltage domains
• Packaging/Quantity: Available in tape and reel packaging, quantity varies based on supplier

Specifications

The 74ALVCH162820GRE4 is a logic level translator integrated circuit designed to facilitate communication between devices operating at different voltage levels. It supports bidirectional voltage translation between two independent power supply rails, making it suitable for various applications.

Key specifications of the 74ALVCH162820GRE4 include:

• Supply Voltage Range: 1.2V to 3.6V
• Translation Voltage Range: 0.8V to 3.6V
• Maximum Data Rate: 400 Mbps
• Number of Channels: 18
• Input/Output Compatibility: TTL, CMOS

Detailed Pin Configuration

The 74ALVCH162820GRE4 features a 56-pin package with clearly defined pin functions. The pin configuration is as follows:

1. VCCA - Power supply voltage for side A
2. GND - Ground
3. B1 - Bidirectional data I/O channel 1 (Side B)
4. B2 - Bidirectional data I/O channel 2 (Side B)
5. B3 - Bidirectional data I/O channel 3 (Side B)
6. B4 - Bidirectional data I/O channel 4 (Side B)
7. B5 - Bidirectional data I/O channel 5 (Side B)
8. B6 - Bidirectional data I/O channel 6 (Side B)
9. B7 - Bidirectional data I/O channel 7 (Side B)
10. B8 - Bidirectional data I/O channel 8 (Side B)
11. B9 - Bidirectional data I/O channel 9 (Side B)
12. GND - Ground
13. VCCB - Power supply voltage for side B
14. A1 - Bidirectional data I/O channel 1 (Side A)
15. A2 - Bidirectional data I/O channel 2 (Side A)
16. A3 - Bidirectional data I/O channel 3 (Side A)
17. A4 - Bidirectional data I/O channel 4 (Side A)
18. A5 - Bidirectional data I/O channel 5 (Side A)
19. A6 - Bidirectional data I/O channel 6 (Side A)
20. A7 - Bidirectional data I/O channel 7 (Side A)
21. A8 - Bidirectional data I/O channel 8 (Side A)
22. A9 - Bidirectional data I/O channel 9 (Side A)
23. GND - Ground 24-56: Additional pins with similar functions

Functional Features

The 74ALVCH162820GRE4 offers several functional features that make it a versatile logic level translator:

1. Bidirectional Translation: Enables bidirectional voltage translation between two independent power supply rails.
2. High-Speed Operation: Supports data rates up to 400 Mbps, allowing for efficient communication between devices.
3. Low-Power Consumption: Designed with low-power characteristics, making it suitable for battery-powered applications.
4. Wide Voltage Range: Compatible with various voltage levels, ranging from 0.8V to 3.6V.
5. TTL and CMOS Compatibility: Works seamlessly with both TTL and CMOS logic families.

Advantages and Disadvantages

Advantages of using the 74ALVCH162820GRE4 include:

• Efficient voltage level translation between different power supply rails
• High-speed operation for fast data transfer
• Low-power consumption, ideal for battery-powered devices
• Wide compatibility with TTL and CMOS logic families

Disadvantages of the 74ALVCH162820GRE4 include:

• Limited to a maximum data rate of 400 Mbps
• Requires careful consideration of voltage levels to ensure proper functionality

Working Principles

The 74ALVCH162820GRE4 utilizes a combination of MOSFETs and control circuitry to achieve voltage level translation. It employs a dual-rail design, allowing bidirectional communication between two voltage domains. The control circuitry ensures that the appropriate voltage translation occurs based on the input signals.

When an input signal is received on one side, the IC translates it to the corresponding voltage level on the other side, enabling seamless communication between devices operating at different voltages.

Detailed Application Field Plans

The 74ALVCH162820GRE4 finds applications in various fields where voltage level translation is required.