SN74LVC74APWTG4

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Logic - Flip Flops

The SN74LVC74APWTG4 is a single-bit D-type flip-flop with a positive-edge trigger and asynchronous reset input. The output of this flip-flop can be transparently set, reset, or toggled depending on the polarity of the pin labeled "D" of the device. It is designed to buffer data and clock signals in digital systems and is typically used in communications and data storage applications where low-voltage CMOS logic levels are required.

The SN74LVC74APWTG4 is an advanced CMOS logic level shifter with a wide power-supply voltage range of 1.65 to 5.5 V and a low propagation delay of about 6 ns. The available input/outputs (I/O) ports are configured as standard TTL inputs and CMOS outputs. This flip-flop also has an internal power-on reset (POR) function, which will reset the outputs upon power-up. This integrated circuit has very low power consumption, typically only 5 μW. The pinout consists of 8 pins, the first 6 are input/output pins and the last two are for the VCC and GND connections for the power supply.

The SN74LVC74APWTG4 operates on the principle of storing and transferring data based on its binary state. When the "D" input is asserted (logic 1 or high input),the flip-flop triggers its output with a positive-edge transition and the output is held until the "D" input is de-asserted (logic 0 or low input).The behavior of this device is the same as a bistable multivibrator, commonly referred to as a latch. When the output of the latch is locked in the high state, it remains in that state until the "D" input is toggled. The SN74LVC74APWTG4 also has two additional inputs for setting and resetting the output of the device. This eliminates the need for an external reset input to be used.

The SN74LVC74APWTG4’s wide range of applications includes data and clock buffering, which allows for the synchronization of two asynchronous clock domains. The device is also used in automotive systems for shift part control and other control applications. Furthermore, it has individual outputs for blending the frequencies of two slow start-up oscillators, thus eliminating glitches from the transition of the supplied data. The SN74LVC74APWTG4 is also used in high-speed communication systems, such as Ethernet, Token Ring, and ATM, where data is required to be synchronized across multiple clock domains.

The SN74LVC74APWTG4 is an optimal integrated circuit device for fast and reliable data storage and transfer due to its fast rise time and low power consumption. It is most useful in applications where a high speed, low-voltage solution is needed, such as in automotive, communications, and high-speed data storage systems. Moreover, the integrated reset function makes it suitable for resetting the system without requiring an external input.

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