MC74ACT573DWR2G

Overview

The MC74ACT573DWR2G is an octal transparent latch designed for high-performance digital systems. It is part of the ACT family, which offers advanced CMOS technology with TTL compatibility. This component is widely used in applications requiring temporary data storage and transfer, such as microprocessors and communication devices. Its 3-state outputs allow for efficient bus interfacing, making it a versatile choice for designers. The latch is packaged in a surface-mount SOIC-20 form factor, which is suitable for compact and high-density PCB designs.

Structure and Working Principle

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The MC74ACT573DWR2G consists of eight D-type latches with a common latch enable (LE) and output enable (OE) control. When LE is high, the data inputs are transparent to the outputs. When LE goes low, the data is latched. The OE pin controls the 3-state outputs, enabling or disabling them as needed. This design ensures minimal propagation delay and high-speed operation, typically up to 50 MHz. The device operates over a wide voltage range (4.5V to 5.5V), making it suitable for various digital systems.

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Key Features

Key features of the MC74ACT573DWR2G include low power consumption, with typical ICC values under 10 mA. It offers high noise immunity due to its advanced CMOS technology, ensuring reliable performance in noisy environments. The device is also compatible with TTL levels, allowing seamless integration with older systems. Its 3-state outputs provide bus-driving capability, making it ideal for shared bus architectures. These features make it a preferred choice for industrial and consumer electronics.

Application Areas

The MC74ACT573DWR2G is commonly used in microprocessor systems, data communication equipment, and industrial control systems. Its ability to handle high-speed data transfer makes it suitable for applications like memory addressing and peripheral interfacing. In consumer electronics, it is found in devices such as set-top boxes and gaming consoles. Its reliability and performance also make it a staple in automotive electronics, where robust components are essential.

Maintenance and Precautions

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To ensure longevity, the MC74ACT573DWR2G should be handled with care to avoid electrostatic discharge (ESD). Proper grounding techniques and ESD-safe packaging are recommended during storage and assembly. Operating the device outside its specified voltage range (4.5V to 5.5V) can lead to malfunction or damage. Designers should also ensure adequate heat dissipation, especially in high-frequency applications, to prevent overheating.

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B2B Procurement Guide

When procuring the MC74ACT573DWR2G in bulk, verify the supplier's authenticity to avoid counterfeit components. Reputable distributors often provide batch testing reports and traceability documentation. Consider lead times and minimum order quantities (MOQs) to align with production schedules. Pricing is typically lower for larger quantities, but negotiate based on projected usage. Ensure compatibility with your PCB design, including footprint and voltage requirements.