SN74LS85DRE4

Series:	74LS
Packaging:	Tape & Reel (TR)
Part Status:	Active
Type:	Magnitude Comparator
Number of Bits:	4
Output:	Active High
Output Function:	A<B, A=B, A>B
Voltage - Supply:	4.75 V ~ 5.25 V
Current - Output High, Low:	400µA, 8mA
Max Propagation Delay @ V, Max CL:	45ns @ 5V, 15pF
Operating Temperature:	0°C ~ 70°C
Package / Case:	16-SOIC (0.154", 3.90mm Width)
Mounting Type:	Surface Mount
Base Part Number:	74LS85

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Introduction

The SN74LS85DRE4 is an 8-bit comparator device that provides powerful signal comparison functions for modern digital systems. By using this device, the signals from two different digital systems can be compared for bit-level match or mismatch. This can be used in a variety of digital systems, from simple logic applications to complex digital signal processing systems.

Technical Specifications

The SN74LS85DRE4 offers a wide range of features that make it suitable for a variety of applications. Its 8-bit signal comparison function makes it ideal for any digital system that requires a high degree of signal accuracy. It has a fast response time of less than 1 μs, and can be operated over a wide voltage range. It also has a high operating temperature range (-55 to +125 °C) that makes it suitable for use in extreme environments. The device also has input hysteresis, which helps to reduce the signal jitter that is common in digital systems.

Application Fields

The SN74LS85DRE4 can be used in a variety of applications. In consumer electronics, it can be used in remote control units, as the device can quickly compare the signals from remote presses to the signals in the device. It can also be used in automotive systems, as the device can compare signals from multiple sources to ensure accurate data transmission. In industrial systems, it can be used to ensure accuracy in digital signal processing. It can also be used in robotics and artificial intelligence systems, as it can allow for the comparison of signals between two different systems for the purpose of learning and understanding.

Working Principle

The SN74LS85DRE4 works by comparing the two incoming signals and providing an output signal that is dependent on the comparison it makes. The device has two inputs that are fed with two digital signals. It then compares and checks the two signals bit-by-bit to determine if a match or mismatch occurs. If a match occurs, it outputs a logic high, and if a mismatch occurs, it outputs a logic low. This allows for the device to be used in a variety of applications, such as checking the accuracy of data transmission or providing a control signal for a learning system.

Conclusion

The SN74LS85DRE4 is a powerful 8-bit comparator device that is suitable for a range of digital applications. It has a fast response time and a wide operating temperature range, which makes it suitable for use in extreme environments. It has two inputs to which two digital signals can be fed, and compares the two signals bit-by-bit. Depending on the comparison, it then provides an output signal that can be used for a variety of applications. It is a powerful device that can provide a high degree of accuracy and reliability in digital signal processing and other digital systems.

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