HEF40174BT,652

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The HEF40174BT,652 can be classified as a logic - flip flop belonging to the high speed family of integrated circuits. Composed of four cascaded D-type clocked flip-flop stages and an overflow stage for additional clocking, this chip is a reliable choice for sequential logic designs requiring high switching speed.

The chip provides a useful selection of logic outputs and includes true/complement versions on Q1 and Q3. Additional outputs are provided on the lower two stages, allowing a range of functions such as single clock edge triggering, divide-by-2 and divide-by-4 operations. Inputs can tolerate a range of different logic levels and the power supply pins can accept both single rail (up +5V only) and dual rail (up +5V and down -5V) power supplies.

The HEF40174BT,652 can be used for a range of clocked logic applications. Basic timers, frequency dividers, divide-by-2 and divide-by-4 operations and populating a sequencer can be easily achieved with the device. It is also commonly used for generating a train of pulses at regular time intervals, such as in frequency counting and other timing applications.

In terms of working principle, the HEF40174BT,652 is composed of four cascaded D-type flip-flop stages and an overflow stage for additional clocking. Each flip-flop stage has two data inputs (D and Clear), a clock input (CK) and two outputs (Q and Q\'). The clock input (CK) combines the clock and reset logic functions and can handle asynchronous clear inputs from active LOW and active HIGH trigger signals. The output (Q and Q\') are generated using the complementing edges of the clock. Upon every rising or falling clock edge, the output of the flip-flop will change state based on the applied data/clear signals. The four stages are connected in cascade, so that the output (Q1 or Q3) of the first stage is connected to the D input of the second stage, which feeds into the next stage and is so on.

In conclusion, the HEF40174BT,652 logic - flip flop is a reliable and versatile chip that provides high speed performance and a variety of outputs. It is suitable for a range of clocked applications, such as timers and frequency dividers, and can handle asynchronous clear input signals from active LOW and active HIGH trigger signals. With four cascaded stages and an overflow stage, it provides powerful functions and flexibility to applications.

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