Encyclopedia Entry: 74LVT2245SJX

Product Overview

Category

The 74LVT2245SJX belongs to the category of integrated circuits (ICs) and specifically falls under the group of bus transceivers.

Use

This product is primarily used for bidirectional data communication between two buses with different voltage levels. It acts as a buffer, allowing data transmission in both directions while ensuring compatibility between the two buses.

Characteristics

• Bidirectional data transmission
• Voltage level translation
• High-speed operation
• Low power consumption
• Wide operating voltage range

Package

The 74LVT2245SJX is available in a small outline integrated circuit (SOIC) package. This package offers compactness and ease of integration into various electronic systems.

Essence

The essence of the 74LVT2245SJX lies in its ability to facilitate seamless data transfer between buses operating at different voltage levels, ensuring efficient and reliable communication.

Packaging/Quantity

The product is typically packaged in reels or tubes, containing a specific quantity of ICs per package. The exact packaging and quantity may vary depending on the manufacturer and supplier.

Specifications

• Supply Voltage Range: 2.7V to 3.6V
• Input Voltage Range: 0V to VCC
• Output Voltage Range: 0V to VCC
• Operating Temperature Range: -40°C to +85°C
• Maximum Data Rate: 400Mbps
• Number of Channels: 8

Detailed Pin Configuration

The 74LVT2245SJX 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) 3
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 transmission: Allows data to be transmitted in both directions between two buses.
• Voltage level translation: Ensures compatibility between buses operating at different voltage levels.
• Output enable control: Enables or disables the output buffers, providing flexibility in controlling data flow.
• Direction control: Determines the direction of data transmission between the buses.

Advantages and Disadvantages

Advantages

• Efficient voltage level translation for seamless communication between buses with different voltage requirements.
• High-speed operation enables fast data transfer.
• Low power consumption helps conserve energy in electronic systems.
• Wide operating voltage range allows compatibility with various voltage standards.

Disadvantages

• Limited number of channels may restrict its use in applications requiring a higher number of bus connections.
• The small outline package may pose challenges in handling and soldering for inexperienced users.

Working Principles

The 74LVT2245SJX operates based on the principles of voltage level translation and bidirectional data transmission. It utilizes internal circuitry to convert the voltage levels of incoming data from one bus to match the voltage requirements of the other bus. The direction control signal determines the direction of data flow, while the output enable signal enables or disables the output buffers.

Detailed Application Field Plans

The 74LVT2245SJX finds applications in various fields where bidirectional data communication between buses with different voltage levels is required. Some specific application areas include:

1. Industrial automation systems
2. Automotive electronics
3. Communication equipment
4. Computer peripherals
5. Consumer electronics

Detailed and Complete Alternative Models

• SN74LVC245A: Similar bidirectional bus transceiver with 8 channels and a wide operating voltage range.
• MC74LVX245: Another voltage level translator with 8 channels and high-speed operation.
• CD74HCT245: Octal bus transceiver with voltage level translation capability and a wider supply voltage range.

(Note: This list is not exhaustive and there are several alternative models available from different manufacturers.)

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