MC100EP31DR2G

Logic - Flip Flops

MC100EP31DR2G is a logic device that falls into the category of Flip Flops. Flip-flops are digital logic elements used in digital circuits to store state and act on data. A flip-flop is a bistable circuit which consists of two stable states, each that represent a binary state. In this case, the MC100EP31DR2G is a 3-state edge-triggered flip-flop with reset.

The device has two data inputs (D1, D2), two clock inputs (CLK1, CLK2) and two reset inputs (R1, R2). The data inputs determine the state of the flip-flop. When the clock signal transitions (at a particular edge), the state is assumed and the outputs are immediately placed in that state. When the reset line is pulsed, the output is forced to a zero state. The 3-state output provides the device with greater flexibility than a regular 2-state flip flop, allowing data from multiple flip-flops to be combined into one output bus.

Applications

The MC100EP31DR2G is used in several different applications. It is common to find the device in microcontrollers, communication circuits and memory circuits. The device adds functionality to systems by adding state storage capabilities, which can then be used in various digital circuits.

In microcontrollers, the device is used to store information. It allows the microcontroller to remember certain pieces of data and recall it at later points in time. This makes the microcontroller more powerful, as it can keep track of separate pieces of information over time.

In communication circuits, the device is used to store state information. It is common to find the device in synchronous serial communications, such as I2C and SPI. The device can store the state of a communication and be used to switch between different states.

In memory circuits, the device is used to store data. The device can store multiple bits of data, allowing memory circuits to store larger amounts of data.

Working Principle

The MC100EP31DR2G is designed to store two bits of information and act on them using the following working principle. The data inputs (D1, D2) determine the state of the output. When one of the clock inputs (CLK1, CLK2) transitions, the data is assumed and the output is placed in the corresponding state.

The reset lines (R1, R2) force the output to a 0 state (if both are high). This is useful when a user needs to control the state of the device. The 3-state output provides the device with greater flexibility, allowing data from multiple flip-flops to be combined into one output bus.

By combining the data inputs, clock inputs, and reset inputs, the MC100EP31DR2G can store two bits of information, allowing data from multiple sources to be stored and recalled at different points in time. This makes the device very versatile and useful in many applications.