74AC74MTR

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The 74AC74MTR is a type of logic flip-flop circuit designed by Texas Instruments. It is a dual register composed of a Set-Reset (SR) latch and a gated-D flip-flop. The latch is specified to operate from a single 5V supply. It is offered in a 14-pin SOIC package and can be used in digital applications with sampling rates up to 50MHz.

The 74AC74MTR is used for a wide variety of applications, such as digital logic circuits, clock and data synchronization, frequency dividers, and frequency synthesizers. In these applications, it provides reliable and accurate timing for logic operations. The 74AC74MTR is also used to time-multiplex computer data buses.

The working principle of the 74AC74MTR is simple. At one extreme of its input signals, the SR latch selects one of the two outputs (Q or Q). At the other extreme, the gated-D flip-flop toggles the logic state of its output (Q or Q) as the input transitions between logic lows and logic highs. The gated-D flip-flop output tracks the changes in the D input.

The latch portion of the 74AC74MTR is a two-input device based on two cross-coupled NAND gates. It uses three selection inputs: SET, RESET, and CLK. There is also a CLOCK ENABLE input. When CLK is low (or high, if CLK is inverted) and the CLOCK ENABLE input is high, the output is determined by the logic states of the SET and RESET inputs.

The gated-D flip-flop is also a two-input device, but its output will track the logic state of its D input when the CLK input is high (or low, if CLK is inverted). The CLOCK ENABLE input can be used to hold the output of the flip-flop in a known state when the CLK input is low (or high).

The 74AC74MTR provides a versatile logic circuit for a wide range of applications. It is reliable, easy to use, and consumes very little power. The output can be set or reset, and the input state will be latched in until the clock signal transitions. The flip-flop portion allows the output to track the input, making the 74AC74MTR a useful tool for timing, synchronization, and data bus multiplexing.

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