MM74C73N

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Logic circuits are the key components in digital systems to perform various functions and operations. Flip flops are one example of logic circuits that play a major role in the functioning of digital systems. They are basically bistable devices and remain in either of two stable states. One of the most commonly used flip-flop is the MM74C73N. This article discusses the application areas and working principle of the MM74C73N.

Application Areas

The MM74C73N flip-flop is a dual D-type flip-flop with set and reset inputs. It is most often used in data storage, signal storage and signal conditioning circuits. The set and reset functions of the MM74C73N can be used to initiate, store and retrieve data from a digital system. It can also be used in pulse-width modulation (PWM) and synchronous signal processing circuits. The MM74C73N is also widely used in counter circuits and memory systems.

Working Principle

The MM74C73N consists of two D-type flip-flops with set and reset inputs. The flip-flops are enabled when both the set and reset inputs are at a low logic level. When both the inputs are at a high logic level, the flip-flops are disabled and the output does not change. The logic diagram for the MM74C73N is shown below.

The two flip-flops in the MM74C73N function independently. In each of the two flip-flops, the data input (D) is used to set the output (Q) and the clock input (CLK) is used to reset the output. The enable input (E) must be at a high logic level in order for the flip-flop to be active. When enable is low, the output will not change regardless of a change in the data or clock inputs. The flip-flop in the MM74C73N can only be set or reset when the enable input is high. The set and reset inputs are used to set the flip-flop to the desired state independent of the other inputs.

The MM74C73N has various input and output levels that depend on the supply voltage. For example, if the supply voltage is 5V, the TTL input level is 0 - 0.8V and the output level is 2 - 4.5V. The propagation delay of the MM74C73N is determined by the rise and fall times of the CLK, SET and RESET pulses, the input rise and fall times and the temperature of the device.

Conclusion

In conclusion, the MM74C73N is a dual D-type flip-flop with set and reset inputs. It is most often used in data storage, signal storage and signal conditioning circuits. The MM74C73N consists of two independently operating flip-flops with different clock, data and enable inputs. The input and output levels of the MM74C73N depend on the supply voltage and the propagation delay of the device depends on several different factors.

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