Encyclopedia Entry: 74AC373PC

Product Overview

Category

The 74AC373PC belongs to the category of integrated circuits (ICs) and specifically falls under the family of flip-flops.

Use

This IC is commonly used in digital electronic systems for storing and transferring data. It is primarily employed as an octal transparent latch or a D-type flip-flop.

Characteristics

• The 74AC373PC operates on a supply voltage range of 2V to 6V.
• It offers high-speed performance with a maximum propagation delay of 5.5 ns.
• This IC has a wide operating temperature range, typically from -40°C to +85°C.
• It features eight individual latches/flip-flops within a single package.

Package and Quantity

The 74AC373PC is available in a 20-pin plastic dual in-line package (PDIP). It is commonly sold in reels or tubes containing multiple units.

Essence

The essence of the 74AC373PC lies in its ability to store and transfer data efficiently within digital systems. It provides a reliable solution for temporary storage and synchronization of signals.

Specifications

• Supply Voltage Range: 2V to 6V
• Maximum Propagation Delay: 5.5 ns
• Operating Temperature Range: -40°C to +85°C
• Number of Latches/Flip-Flops: 8
• Package Type: 20-pin PDIP

Detailed Pin Configuration

The 74AC373PC follows the standard pin configuration for a 20-pin PDIP package:

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

Functional Features

The key functional features of the 74AC373PC include:

• Octal transparent latch or D-type flip-flop operation.
• High-speed data transfer and storage capabilities.
• Individual output enable control for each latch/flip-flop.
• Latch enable input for synchronous operation.

Advantages and Disadvantages

Advantages

• High-speed performance allows for efficient data handling in digital systems.
• Versatile functionality as both a latch and a flip-flop.
• Individual output enable control provides flexibility in signal routing.

Disadvantages

• Limited to 8-bit data storage and transfer.
• Requires external control signals for proper operation.

Working Principles

The 74AC373PC operates based on the principles of latch-based memory storage and flip-flop operation. It utilizes transparent latches that can store data when the latch enable (LE) input is active. The stored data can be transferred to the outputs by activating the output enable (OE) control. This IC can function as either a latch or a flip-flop, depending on the control signals applied.

Detailed Application Field Plans

The 74AC373PC finds applications in various digital systems, including but not limited to:

1. Microprocessors and microcontrollers
2. Data storage and retrieval systems
3. Communication devices
4. Address decoding circuits
5. Register banks
6. Memory modules

Its ability to store and transfer data efficiently makes it suitable for use in these applications.

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the 74AC373PC include:

1. 74HC373: This IC operates at a lower voltage range of 2V to 6V and is compatible with CMOS logic levels.
2. 74LS373: It operates at a wider temperature range of -55°C to +125°C and is designed for military and industrial applications.
3. CD74ACT373: This IC offers improved noise immunity and higher speed performance compared to the 74AC373PC.

These alternative models can be considered based on specific requirements and compatibility with the system design.

In conclusion, the 74