SN74HC174PW

SN74HC174PW is a flip-flop device used in digital logic circuits. A flip-flop is a type of electronic circuit that has two stable states and can be used to store binary data or discrete logic signals. The SN74HC174PW is a type of "D-type" flip-flop, meaning it has a data input as well as a clock input and produces two complementary outputs.

Application Field

SN74HC174PW flip-flops are used in a wide variety of applications. They are commonly used to synchronize data between two parts of a logic circuit, such as in a shift register. This can be useful for converting data from one clock speed to another, or for generating a delayed output. They are also used for storing binary data, allowing for easy storage and retrieval of information. In addition, flip-flops are used as data latches, to provide memory for processor systems.

Working principle

The SN74HC174PW uses two CMOS inverters, combined in a toggle configuration to form a flip-flop circuit. The Data input is connected to the first inverter, and the Clock input is connected to the second inverter. The two outputs of the flip-flop are the non-inverted and inverted versions of the Data input. When the clock input is at low logic level (L or 0), the inputs of the two inverters remain unchanged and the outputs are latched. When the clock input is at high logic level (H or 1), the Data input is passed to the outputs, and the flip-flop has changed states. This means that the Data input is "flipped" to the outputs when the Clock input changes from L to H.

The SN74HC174PW is a positive edge-triggered flip-flop, and switches states on the positive edge of the clock input signal. This means that the latch is triggered when the Clock input goes from L to H, but not when it goes from H to L. This makes the SN74HC174PW useful for synchronizing timing between circuits, as it ensures that the data input will be transferred to the outputs at a consistent rate.