CD74HCT373EG4

Logic - Latches is the study of capturing and storing of digital information in electronic circuits. The CD74HCT373EG4 is one application field and working principle in this field. It is a dual, edge-triggered storage latch designed specifically to store data in CMOS logic boards. The design of the latch makes it particularly suited for implementing data latches, memory registers and other related tasks.

The CD74HCT373EG4 consists of two separate and independent latches, one on each side of the dual in-line package. Both are edge-triggered, meaning that the data present on the input is latched when the clock input (CLK1 and CLK2) transitions from low to high. Each latch is made up of two parts, an oscillator and an output register separated by data buffers. The oscillator produces pulse shapes that, together with the output register, are used for synchronization, data latching and storing operations.

The CD74HCT373EG4 features a separate input gate with almost identical characteristics. It will accept data from either a positive or a negative logic family, with the specified propagation delays. In the event of a signal glitch, the circuit will prevent the data from entering the output register and hence to the output.

The working principle of the CD74HCT373EG4 is as follows. The data signal is input into the data buffer. It is then passed on to the oscillator. The oscillator acts like a capacitor, charging and discharging with each signal pulse. This creates the oscillation seen on the output signal. As the data input signal is present and the clock input is high, the oscillator will charge, storing the data in the output register.

On the negative edge of the clock, the oscillator will discharge, keeping the data stored in the output register and putting it on the output. As the clock signal goes low, the output of the oscillator will be disconnected from the output register, ensuring that the data is not lost.

The CD74HCT373EG4 is used in logic boards to store information. It is used to implement data memories and registers, as well as being well suited to digital logic circuit designs. The device is suitable for both industrial and medical applications.

The CD74HCT373EG4 provides a low-cost, low-power approach to implementing data memories and registers in digital logic boards. It offers the flexibility of an edge-triggered latching principle for data synchronization and storage, as well as high reliability, noise immunity and low power consumption. Additionally, its design makes it particularly suited to interfacing between positive and negative logic families.