ON Semiconductor MC74VHCT573ADTR2 Octal Latch

The ON Semiconductor MC74VHCT573ADTR2 is a high-performance, octal D-type latch that is essential for a wide range of digital applications where temporary storage of data is required. This integrated circuit is part of the VHCT family, which is known for its high-speed CMOS technology. It is specifically designed to interface with 5V systems while maintaining the speed of CMOS devices, thereby providing a bridge between mixed 3.3V/5V systems.

The MC74VHCT573ADTR2 features eight latches with 3-state outputs for bus-oriented applications. Each latch is D-type, meaning it captures the state of the data inputs on the rising edge of the clock input. Once captured, the data is held within the latch until the output enable (OE) is activated, which then presents the data at the outputs.

This device is supplied in a TSSOP-20 package, which is optimized for reduced space on PCBs. The compact form factor is crucial for modern electronic devices that demand high-density component placement without sacrificing performance. The TSSOP-20 package also ensures improved thermal performance and reduced lead inductance, which enhances the overall reliability and speed of the IC.

Key features of the MC74VHCT573ADTR2 include:

• High-speed CMOS technology
• Octal D-type latches with 3-state outputs
• Designed for 4.5V to 5.5V VCC operation
• Low power consumption
• Compatible with TTL levels
• Output drive capability of 8mA at 5V
• Pin and function compatible with other standard logic families
• Industrial operating temperature range: -40°C to +85°C

Applications for this latch include temporary data storage, data transfer, and system control where the need to isolate the bus line during memory updating is necessary. Its robust design ensures that it can be used in various environments and under different conditions without compromising data integrity or device performance.

The MC74VHCT573ADTR2 from ON Semiconductor is a versatile and reliable choice for designers looking to implement high-speed latching mechanisms in their digital systems. Its compatibility with 5V systems and low-power operation makes it a suitable component for a broad range of commercial and industrial applications.