Encyclopedia Entry: 74ALVC2245MTCX

Product Overview

Category

The 74ALVC2245MTCX belongs to the category of integrated circuits (ICs) and specifically falls under the family of bus transceivers.

Use

This product is primarily used for bidirectional data transfer between two buses with different voltage levels. It acts as a buffer, allowing seamless communication between systems operating at different voltage levels.

Characteristics

• Bidirectional voltage level translation
• High-speed operation
• Low power consumption
• Wide operating voltage range
• ESD protection on all inputs and outputs

Package

The 74ALVC2245MTCX comes in a small form factor TSSOP-20 package, which ensures efficient use of board space while providing reliable performance.

Essence

The essence of this product lies in its ability to facilitate smooth data transfer between buses operating at different voltage levels, ensuring compatibility and reliable communication.

Packaging/Quantity

The 74ALVC2245MTCX is typically packaged in reels or tubes, containing a quantity of 250 units per package.

Specifications

• Supply Voltage Range: 1.2V to 3.6V
• Input Voltage Range: -0.5V to VCC + 0.5V
• Output Voltage Range: 0V to VCC
• Operating Temperature Range: -40°C to +85°C
• Maximum Data Rate: 400Mbps

Detailed Pin Configuration

The 74ALVC2245MTCX has a total of 20 pins, each serving a specific function. The pin configuration is as follows:

1. OE (Output Enable) 1
2. A1 (Data Bus A) 1
3. B1 (Data Bus B) 1
4. GND (Ground)
5. B2 (Data Bus B) 2
6. A2 (Data Bus A) 2
7. OE (Output Enable) 2
8. VCC (Supply Voltage)
9. DIR (Direction Control)
10. B3 (Data Bus B) 3
11. A3 (Data Bus A) 3
12. GND (Ground)
13. A4 (Data Bus A) 4
14. B4 (Data Bus B) 4
15. OE (Output Enable) 4
16. VCC (Supply Voltage)
17. B5 (Data Bus B) 5
18. A5 (Data Bus A) 5
19. DIR (Direction Control)
20. GND (Ground)

Functional Features

• Bidirectional data transfer between two buses with different voltage levels
• Automatic direction control based on the DIR pin
• Output enable/disable control for each bus
• ESD protection on all inputs and outputs
• High-speed operation for efficient data transfer

Advantages and Disadvantages

Advantages

• Enables seamless communication between systems operating at different voltage levels
• Low power consumption
• Wide operating voltage range allows compatibility with various systems
• ESD protection ensures reliability in harsh environments
• Compact package saves board space

Disadvantages

• Limited maximum data rate of 400Mbps
• Requires careful consideration of voltage level compatibility to avoid signal degradation

Working Principles

The 74ALVC2245MTCX operates by utilizing a bidirectional voltage level translation mechanism. It automatically detects the direction of data flow based on the DIR pin's state. When the DIR pin is set to logic high, data is transferred from Bus A to Bus B, and when it is set to logic low, data flows from Bus B to Bus A. The output enable pins (OE) allow individual control of each bus, enabling selective data transfer.

Detailed Application Field Plans

The 74ALVC2245MTCX finds applications in various fields where bidirectional voltage level translation is required. Some notable application areas include:

1. Communication systems
2. Industrial automation
3. Automotive electronics
4. Consumer electronics
5. Medical devices

Detailed and Complete Alternative Models

• SN74LVC245A
• MC74LVX245
• 74HC245
• CD74HCT245
• NC7WZ245

These alternative models offer similar functionality and can be used as substitutes for the 74ALVC2245MTCX depending on specific requirements and availability.

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