Encyclopedia Entry: 74LVT245MTCX

Product Overview

Category

The 74LVT245MTCX belongs to the category of integrated circuits (ICs) and specifically falls under the family of bus transceivers.

Use

This IC is commonly used for bidirectional level shifting and voltage translation between different logic levels in digital systems. It enables seamless communication between devices operating at different voltage levels.

Characteristics

• Bidirectional voltage translation
• Wide operating voltage range
• High-speed operation
• Low power consumption
• Schmitt-trigger inputs for noise immunity
• ESD protection on all inputs and outputs

Package

The 74LVT245MTCX is available in a small-sized TSSOP (Thin Shrink Small Outline Package) package, which ensures efficient use of board space and facilitates easy integration into electronic circuits.

Essence

The essence of the 74LVT245MTCX lies in its ability to provide reliable and efficient voltage translation, enabling smooth data transfer between devices with varying voltage requirements.

Packaging/Quantity

This IC is typically supplied in reels or tubes, with each reel containing a specified quantity of units. The exact packaging and quantity may vary depending on the manufacturer and supplier.

Specifications

• Supply Voltage Range: 1.65V to 3.6V
• Logic Voltage Levels: 1.8V, 2.5V, 3.3V
• Maximum Data Rate: 400 Mbps
• Number of Channels: 8
• Input/Output Compatibility: TTL, CMOS
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The 74LVT245MTCX features a total of 20 pins, each serving a specific purpose. Here is a detailed pin configuration:

1. OE (Output Enable)
2. A1 (Data Input/Output)
3. B1 (Data Input/Output)
4. A2 (Data Input/Output)
5. B2 (Data Input/Output)
6. A3 (Data Input/Output)
7. B3 (Data Input/Output)
8. A4 (Data Input/Output)
9. B4 (Data Input/Output)
10. GND (Ground)
11. B5 (Data Input/Output)
12. A5 (Data Input/Output)
13. B6 (Data Input/Output)
14. A6 (Data Input/Output)
15. B7 (Data Input/Output)
16. A7 (Data Input/Output)
17. B8 (Data Input/Output)
18. A8 (Data Input/Output)
19. VCC (Supply Voltage)
20. DIR (Direction Control)

Functional Features

• Bidirectional data transfer between two voltage domains
• Automatic direction control based on the DIR pin
• High-speed operation allows for efficient data transmission
• Schmitt-trigger inputs ensure noise immunity and reliable signal reception
• ESD protection safeguards against electrostatic discharge

Advantages and Disadvantages

Advantages

• Enables seamless communication between devices with different voltage levels
• Wide operating voltage range provides flexibility in system design
• Low power consumption contributes to energy-efficient applications
• Compact package size facilitates space-saving integration
• ESD protection ensures enhanced reliability

Disadvantages

• Limited number of channels (8) may not be suitable for applications requiring a higher channel count
• Maximum data rate (400 Mbps) may not meet the requirements of certain high-speed applications

Working Principles

The 74LVT245MTCX operates by receiving data from one voltage domain, translating it to the appropriate voltage level, and transmitting it to another voltage domain bidirectionally. The direction of data flow is controlled by the DIR pin. The IC's internal circuitry ensures efficient voltage translation while maintaining signal integrity and minimizing power consumption.

Detailed Application Field Plans

The 74LVT245MTCX finds applications in various fields, including:

1. Microcontroller interfacing
2. Data communication systems
3. Industrial automation
4. Consumer electronics
5. Automotive electronics
6. Medical devices
7. Robotics

In these fields, the IC facilitates seamless communication between devices operating at different voltage levels, enabling efficient data transfer and system integration.

Detailed and Complete Alternative Models

• SN74LVC245A: Similar bidirectional bus transceiver with a wider supply voltage range (1.2V to 3.6V) and higher maximum data rate (500 Mbps).
• 74HCT245: Bidirectional octal bus transceiver compatible with TTL logic levels.
• CD74HC245: Octal bus transceiver with high-speed operation and compatibility with CMOS logic levels.

These alternative models offer similar functionality to the 74LVT245MTCX and can be considered based on specific application requirements.

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