Encyclopedia Entry: 74VHCT373AM

Product Overview

Category

The 74VHCT373AM belongs to the category of integrated circuits (ICs) and specifically falls under the group of flip-flops.

Use

This IC is commonly used in digital electronics for storing and transferring data. It serves as an octal transparent latch with 3-state outputs.

Characteristics

• High-speed operation
• Low power consumption
• Compatibility with both TTL and CMOS logic levels
• Wide operating voltage range
• Output capability of driving up to 15 LSTTL loads

Package

The 74VHCT373AM is available in a standard 20-pin small-outline package (SOP).

Essence

The essence of the 74VHCT373AM lies in its ability to store and control the flow of data within a digital circuit, providing efficient data storage and transfer capabilities.

Packaging/Quantity

This IC is typically sold in reels or tubes, with each reel containing approximately 2500 units.

Specifications

• Supply Voltage Range: 4.5V to 5.5V
• Input Voltage Range: 0V to VCC
• Operating Temperature Range: -40°C to +85°C
• Output Current: ±6mA
• Propagation Delay Time: 7ns (max)
• Output Transition Time: 6ns (max)

Detailed Pin Configuration

The 74VHCT373AM has a total of 20 pins, which are assigned specific functions. The pin configuration is as follows:

1. D0 (Data Input 0)
2. D1 (Data Input 1)
3. D2 (Data Input 2)
4. D3 (Data Input 3)
5. D4 (Data Input 4)
6. D5 (Data Input 5)
7. D6 (Data Input 6)
8. D7 (Data Input 7)
9. GND (Ground)
10. OE (Output Enable)
11. Q0 (Output 0)
12. Q1 (Output 1)
13. Q2 (Output 2)
14. Q3 (Output 3)
15. Q4 (Output 4)
16. Q5 (Output 5)
17. Q6 (Output 6)
18. Q7 (Output 7)
19. VCC (Supply Voltage)
20. LE (Latch Enable)

Functional Features

The 74VHCT373AM offers the following functional features:

• Octal transparent latch with 3-state outputs
• Data inputs for storing information
• Output enable control for enabling/disabling the outputs
• Latch enable control for capturing and holding data
• Compatibility with various logic levels, allowing seamless integration into different digital systems

Advantages and Disadvantages

Advantages

• High-speed operation enables efficient data transfer
• Low power consumption helps in reducing energy usage
• Wide operating voltage range provides flexibility in different applications
• Compatibility with TTL and CMOS logic levels allows for easy integration

Disadvantages

• Limited output current may restrict its use in certain high-current applications
• Propagation delay time may affect real-time applications requiring immediate response

Working Principles

The 74VHCT373AM operates based on the principles of flip-flops. It utilizes transparent latches to store and control the flow of data. When the latch enable (LE) signal is active, the data inputs (D0-D7) are captured and stored. The stored data can then be accessed through the corresponding output pins (Q0-Q7). The output enable (OE) signal controls whether the outputs are enabled or disabled.

Detailed Application Field Plans

The 74VHCT373AM finds applications in various digital systems, including but not limited to:

1. Microcontrollers and microprocessors
2. Memory modules
3. Data storage devices
4. Communication systems
5. Industrial automation
6. Automotive electronics

Detailed and Complete Alternative Models

There are several alternative models available that offer similar functionality to the 74VHCT373AM. Some notable alternatives include:

• 74HC373: High-speed CMOS octal D-type latch with 3-state outputs
• CD74ACT373: Octal transparent latch with 3-state outputs, compatible with TTL logic levels
• SN74LS373: Octal D-type transparent latch with 3-state outputs, compatible with LSTTL logic levels

These alternative models can be considered based on specific requirements and compatibility with existing systems.

In conclusion, the 74VHCT373AM is a versatile integrated circuit used for data storage and transfer in digital electronics. Its high-speed operation, low power consumption, and compatibility with different logic levels make it suitable for various applications. However, its limited output current and propagation delay time should be