MC14023BD

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The MC14023BD is a bilateral setup/hold flip-flop designed as a simple solution for standard digital design application. It operates with a trigger input seen at one gate and a feedback loop seen at two other gates. The triggers are designed to allow a setup or hold operation when the clock is \'high\' or \'low\', respectively. The output of the MC14023BD is inversely proportional to the input, meaning whenever the clock goes high the output will go low. This is a useful logic gate to control the data synchronisation and storage in a digital design.

The MC14023BD is a logic-gate-type inverter from the 4023 family, with an operating voltage of either 5 V or 10 V. It is extremely popular for its performance, linearity, and accuracy. The maximum transfer delay time of the device is 50 ns, the propagation delay time is 2.5 ns, and the output voltage is 0.5-5 V depending on the supply voltage. It is widely used in digital circuits for synchronous data processing for single- or dual-phase clocking.

The basic input, output and feedback loop structure of the MC14023BD is shown in the diagram below. There are two input pins on the device, labeled \'Q\' and \'D\'. The input pin Q is the trigger input, while the input pin D is the data input. The Clock pin C is an asynchronous control, used to switch between the setup and hold states. Finally, the output pins \'Q\' and \'Q\' are the inverse logic outputs of the MC14023BD, representing the current and previous stable states of the Flip-Flop.

The working of the MC14023BD can be understood from the following timing diagram. As long as the clock signal is low, the \'D\' input pin will stay constant, and the output will stay at the \'Q\' voltage level. When the clock signal goes high, the \'D\' will be and stay at the same voltage level until the clock signal turns low again. This is the setup of the Flip-Flop, which retains the \'Q\' voltage level. When the clock signal turns low again, the \'D\' will remain at the same level, and the output will retain the \'Q\' level, completing the data storage cycle. The output of the device is implemented using a tri-state buffer, switching between the \'Q\' and \'Not Q\' outputs, depending on the clock signal. This is the hold phase, where data is held at the \'Q\' level.

To summarise, the purpose of the MC14023BD is to temporarily store data at a particular voltage level, called the \'Q\' signal, when the clock signal is high, called the \'D\' signal. The output of the device is based on the input signal, and is either the \'Q\' voltage level or the inverse of it. It is widely used in digital signal processing and synchronous data systems due to its low propagation delay and maximum speed of operation. The MC14023BD can also be used in dual-phase clocking applications, where two clocks are used to provide stable input signals.

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