M74HC173B1R

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Flip-flop is one of the most fundamental elements of digital logic system, is a basic element of latch, counter and storage elements. M74HC173B1R is a new high-speed CMOS work static flip-flop, quadruple non-inverting type. It is used in various fields and its working priciple is quite simple, so let\'s take a look at it.

Features

• Package of M74HC173B1R is 16-pin plastic dual in-line
• High speed performances: Propagation delay time: 0.6~2.2ns, maximum independent static random access memory time: 0.6~4.7ns
• Working voltage range: 2V~5.5V
• Function withstand voltage: 4.5V~5.5V
• Possibility of multiplexing with other CMOS integrated circuits
• Low power dissipation: ICC(max) = 1μA

Application Field

M74HC173B1R is widely used in digital logic circuits. It can be used for real-time clock, automatic speech recognition, embedded processor, digital signal processor, microcomputer control system, code lock and so on. Besides, it is also designed for power-conserving and low voltage mode.

Working Principle

M74HC173B1R is a static flip-flop, quadruple non-inverting type, meaning it has four non-inverting inputs and each of the four inputs set a bit in its output register. When the bank of CLK input is high, the output will conserve the values of the preset and clear inputs. When the CLK input is low, the register will be set or reset depending on the value of the preset or clear input.

The M74HC173B1R consists of four edge-triggered flip-flops with separate preset and clear inputs, and complementary Q and Q outputs. While each flip-flop is clocked separately by their common clock C. If the clock C is HIGH, the Q outputs will be equal to the level of their D inputs, so the outputs preserve its states. When the clock goes LOW, the outputs will take the values which have been preset or clear.

The inputs of M74HC173B1R are: four D inputs, Clock C, Preset, Clear for each flip-flop and Ground. The outputs areQ andQ for each flip-flop. The M74HC173B1R is a static flip-flop, meaning that the state of the flip-flop will be remembered until it is changed by a new input. This makes it ideal for storing bits of data.

Drawbacks

M74HC173B1R has some drawbacks, such as high device count, high power consumption and susceptibility to noise. Furthermore, the circuit is sensitive to power ripples, ringing and transients. As such, proper circuit design, control and regulation are essential in order to maintain proper functioning of the device.

Conclusion

The M74HC173B1R static flip-flop is a highly versatile component and is suitable for a variety of digital logic applications. It is able to store data, and is clocked at high speeds and low power consumption. However, due to its sensitive nature, proper design and control are essential for optimal operation of the circuit.

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