MC74VHC245DTG

Product Overview

Category

MC74VHC245DTG belongs to the category of integrated circuits (ICs).

Use

It is commonly used as a bidirectional octal bus transceiver.

Characteristics

• High-speed CMOS technology
• Wide operating voltage range: 2.0V to 5.5V
• Low power consumption
• Schmitt trigger inputs for noise immunity
• 3-state outputs for bus-oriented applications

Package

MC74VHC245DTG is available in a TSSOP-20 package.

Essence

The essence of MC74VHC245DTG lies in its ability to provide bidirectional communication between two buses with different voltage levels.

Packaging/Quantity

It is typically packaged in reels and comes in quantities of 2500 units per reel.

Specifications

• Supply Voltage Range: 2.0V to 5.5V
• Input Voltage Range: -0.5V to VCC + 0.5V
• Output Voltage Range: -0.5V to VCC + 0.5V
• Operating Temperature Range: -40°C to +85°C
• Propagation Delay Time: 4.5ns (typical)
• Output Current: ±6mA

Detailed Pin Configuration

1. OE (Output Enable) - Output Enable Input
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 - Positive Supply Voltage
20. DIR (Direction Control) - Direction Control Input

Functional Features

• Bidirectional data transfer between two buses
• 3-state outputs for bus-oriented applications
• Schmitt trigger inputs for noise immunity
• High-speed operation with low power consumption
• Wide operating voltage range for compatibility with various systems

Advantages and Disadvantages

Advantages

• High-speed CMOS technology ensures fast data transfer.
• Wide operating voltage range allows compatibility with different systems.
• Schmitt trigger inputs provide noise immunity.
• 3-state outputs enable bus-oriented applications.

Disadvantages

• Limited output current may restrict usage in certain high-power applications.
• TSSOP-20 package may require careful handling during assembly.

Working Principles

MC74VHC245DTG operates by receiving data from one bus and transmitting it to another bidirectionally. The direction of data flow is controlled by the DIR pin. When the DIR pin is set to a specific logic level, the data is either transmitted from A1-A8 to B1-B8 or vice versa. The OE pin enables or disables the outputs, allowing the device to be put into a high-impedance state when not in use.

Detailed Application Field Plans

MC74VHC245DTG finds applications in various fields, including: - Microcontroller interfacing - Data communication systems - Industrial automation - Automotive electronics - Consumer electronics

Detailed and Complete Alternative Models

Some alternative models that can be considered as alternatives to MC74VHC245DTG are: - SN74LVC245A - CD74HCT245E - 74HC245D

These models offer similar functionality and characteristics, providing flexibility in choosing the most suitable option for specific applications.

In conclusion, MC74VHC245DTG is a high-speed bidirectional octal bus transceiver integrated circuit. It offers advantages such as wide operating voltage range, noise immunity, and 3-state outputs. However, it has limitations in terms of output current and package handling. It finds applications in various fields and has alternative models available for consideration.