Encyclopedia Entry: 74ACTQ573SC

Product Overview

Category

The 74ACTQ573SC belongs to the category of integrated circuits (ICs) and specifically falls under the group of octal transparent latch with 3-state outputs.

Use

This IC is commonly used in digital electronics for storing and transferring data. It acts as a latch, allowing data to be held or passed through based on control signals.

Characteristics

• Octal transparent latch with 3-state outputs
• High-speed operation
• Low power consumption
• Wide operating voltage range
• Compatibility with TTL input levels
• Output drive capability: ±24mA at 4.5V to 5.5V

Package and Quantity

The 74ACTQ573SC is available in a small-outline integrated circuit (SOIC) package. It typically comes in a tube or reel packaging, with a quantity of 250 units per tube/reel.

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: ±24mA
• Propagation Delay Time: 6ns (max)
• Output Transition Time: 6ns (max)

Pin Configuration

The 74ACTQ573SC has a total of 20 pins, which are assigned specific functions. The pin configuration is as follows:

+---+--+---+ D0 |1 20| VCC D1 |2 19| OE D2 |3 18| Q0 D3 |4 17| Q1 D4 |5 16| Q2 D5 |6 15| Q3 D6 |7 14| Q4 D7 |8 13| Q5 GND |9 12| Q6 LE |10 11| Q7 +--------+

Functional Features

• Octal transparent latch with 3-state outputs: Allows data to be stored and transferred.
• Output Enable (OE) control: Enables or disables the outputs.
• Latch Enable (LE) control: Latches the input data when enabled.
• 3-state outputs: Provides high impedance state when disabled, allowing multiple devices to share a common bus.

Advantages and Disadvantages

Advantages

• High-speed operation: Suitable for applications requiring fast data transfer.
• Low power consumption: Helps in reducing overall power requirements.
• Wide operating voltage range: Provides flexibility in various voltage environments.
• Compatibility with TTL input levels: Can interface with TTL logic circuits.
• Output drive capability: Can drive external loads without additional amplification.

Disadvantages

• Limited number of latch outputs: Only supports octal (8-bit) data storage and transfer.
• Not suitable for high-voltage applications: Operating voltage range is limited to 4.5V to 5.5V.

Working Principles

The 74ACTQ573SC operates based on the principles of digital logic. When the latch enable (LE) signal is active, the input data is latched and stored. The output enable (OE) signal controls whether the stored data is passed through to the outputs or held in a high impedance state. This allows for efficient data transfer and sharing of a common bus among multiple devices.

Application Field Plans

The 74ACTQ573SC finds application in various digital systems where data storage and transfer are required. Some specific application areas include: - Microprocessor-based systems - Data communication equipment - Industrial control systems - Test and measurement instruments - Automotive electronics

Alternative Models

There are several alternative models available that offer similar functionality to the 74ACTQ573SC. Some popular alternatives include: - 74HC573: CMOS octal latch with 3-state outputs - SN74LS373: TTL octal transparent latch with 3-state outputs - CD40107B: CMOS dual 4-bit static shift register

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

In conclusion, the 74ACTQ573SC is a versatile integrated circuit used for data storage and transfer in digital systems. Its high-speed operation, low power consumption, and compatibility with TTL input levels make it suitable for various applications. However, its limited latch outputs and voltage range should be taken into consideration when selecting this IC for a particular project.