74HC373DB,112

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Latches are used in a variety of applications, and the 74HC373DB,112 is a part of a family of integrated circuits (ICs) for a wide range of digital logic applications. Specifically, the 74HC373DB,112 is a high-speed logic latch with dual data bus outputs and is made up of several important components.

Overall Architecture of 74HC373DB,112

The 74HC373DB,112 consists of a D-type flip flop and dual 3-state outputs. This combination helps to make a useful circuit for applications that require a synchronous address or data latch with 3-state outputs, multiplexers, decoders and other functions. The device itself is a 8-bit register and is divided into two 4-bit sections. Each 4-bit section consists of an input latch and an output data driver, which helps to keep data between two registers synchronized.

Inputs and Outputs of 74HC373DB,112

The 74HC373DB,112 has two data inputs, called D0 and D4, where D4 is for the upper 4-bit section and D0 is for the lower 4-bit section. In addition to the two data inputs, the 74HC373DB,112 also has an active-low enable input, which must be held low in order for the latch to be enabled. Lastly, there are two output pins, called O0 and O4, that are used to drive external logic.

Working Principle of 74HC373DB,112

The 74HC373DB,112 operates by latching data on the rising edge of the active-low enable pin. When the active-low enable pin is pulled low, data present on the D0 and D4 inputs is latched into the input latch for each 4-bit section. When the active-low enable pin is held high, data from the input latches is connected to the output data drivers. This allows the output pins to be read as the data present on the D0 and D4 inputs.

Application Field for 74HC373DB,112

The 74HC373DB,112 latch is an ideal choice for use when a circuit requires a synchronous address or data latch with 3-state outputs. With its two data inputs and two output pins, the 74HC373DB,112 can be used in a variety of digital logic applications, such as multiplexers, decoders and address selectors. This device is also commonly used in address decoding circuits because of its ability to latch data in a synchronous manner.

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