74ACT573SC

Series:	74ACT
Packaging:	Tube
Part Status:	Obsolete
Logic Type:	D-Type Transparent Latch
Circuit:	8:8
Output Type:	Tri-State
Voltage - Supply:	4.5 V ~ 5.5 V
Independent Circuits:	1
Delay Time - Propagation:	6ns
Current - Output High, Low:	24mA, 24mA
Operating Temperature:	-40°C ~ 85°C
Mounting Type:	Surface Mount
Package / Case:	20-SOIC (0.295", 7.50mm Width)
Supplier Device Package:	20-SOIC
Base Part Number:	74ACT573

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74ACT573SC Application Field and Working Principle

The 74ACT573SC is a high-speed, low-power, 8-bit latch designed to offer improved performance over the more traditional 5553. It is a static register designed to provide greater performance and speed than conventional latches. The latch is designed with CMOS technology which makes it ideal for use in applications that require a reliable and cost effective solution for latching data and logic signals.

Application Field

The 74ACT573SC is commonly used in telecommunications, industrial, automotive, and consumer electronics markets. Specifically, the latch can be used in applications requiring high-speed, low-power, and noise free data and logic signal latching. It is suitable for use in digital systems that require speed and frequency to process large amounts of data quickly. It can also be used in most systems that require high reliability and low power consumption.

Working Principle

The 74ACT573SC latch works by momentarily sensing a logic signal, capturing it, and then sending it to its output when the signal is stable. Generally, the latch consists of eight gates. Each of the eight gates has an input, an output, an enable input, and a select input. The eight inputs and eight outputs of the latch form an 8-bit omnidirectional data path. The enable input is used to determine when data is enabled to pass through the latch to its output. Additionally, the select inputs can be used to enable or disable individual bits of data when latching multiple signals.When the enable input is asserted, the stability of the data signal is determined by the length of the pulse received. Selection time is typically much shorter when the enable input is asserted and stable. Once the enable input is deasserted, the latch is disabled and the output is no longer updated. The latch also has a power-on reset (POR) feature which resets all bits of data to a zero level upon startup.

Conclusion

The 74ACT573SC is a versatile and reliable static latch designed for applications that require high-speed, low-power, and noise-free data and logic signal latching. It is ideally suited for digital systems that require quick response time and frequency to process large amounts of data quickly. The latch is also known for its power-on reset feature and ability to enable or disable individual bits of data when latching multiple signals.

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