74VCXH245MNR2

Product Overview

Category

The 74VCXH245MNR2 belongs to the category of integrated circuits (ICs) and specifically falls under the family of bus transceivers.

Use

This IC is primarily 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 data transfer capability
• 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 74VCXH245MNR2 is available in a standard 20-pin TSSOP (Thin Shrink Small Outline Package) package. This package offers good thermal performance and ease of handling during assembly.

Essence

The essence of the 74VCXH245MNR2 lies in its ability to provide efficient and reliable voltage level translation, ensuring seamless data transfer between devices operating at different logic levels.

Packaging/Quantity

The IC is typically supplied in tape and reel packaging, with a quantity of 2500 units per reel.

Specifications

• Supply Voltage Range: 1.2V to 3.6V
• Logic Voltage Levels: 1.2V, 1.5V, 1.8V, 2.5V, 3.3V
• Maximum Data Rate: 400 Mbps
• Number of Channels: 8
• Input/Output Compatibility: CMOS/TTL
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The 74VCXH245MNR2 has a total of 20 pins, each serving a specific function. The pin configuration is as follows:

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

Functional Features

• Bidirectional data transfer: The IC allows data to be transferred in both directions, enabling seamless communication between devices.
• Voltage level translation: It facilitates the translation of logic levels between different voltage domains, ensuring compatibility between devices operating at different voltages.
• High-speed operation: The IC supports high-speed data transmission, making it suitable for applications requiring fast data transfer.
• Noise immunity: Schmitt trigger inputs provide improved noise immunity, ensuring reliable operation even in noisy environments.
• ESD protection: All inputs and outputs are equipped with electrostatic discharge (ESD) protection, safeguarding the IC from damage due to static electricity.

Advantages and Disadvantages

Advantages

• Wide operating voltage range allows compatibility with various logic levels.
• High-speed operation enables efficient data transfer in time-critical applications.
• Low power consumption contributes to energy-efficient designs.
• Schmitt trigger inputs enhance noise immunity, ensuring reliable performance.
• ESD protection safeguards the IC from electrostatic discharge damage.

Disadvantages

• Limited number of channels (8) may not be sufficient for certain applications requiring a higher channel count.
• The TSSOP package may pose challenges during manual soldering due to its small size and close pin spacing.

Working Principles

The 74VCXH245MNR2 operates based on the principles of voltage level translation. It utilizes a combination of CMOS and TTL logic to enable bidirectional data transfer between devices operating at different voltage levels. The direction of data flow is controlled by the DIR pin, while the OE pin allows for enabling or disabling the outputs.

When the DIR pin is set to a specific logic level, the data is transferred bidirectionally between the A and B ports. The voltage translation occurs seamlessly, allowing devices with different voltage requirements to communicate effectively.

Detailed Application Field Plans

The 74VCXH245MNR2 finds