PI74FCT374ATS

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Logic - Flip Flops

The PI74FCT374ATS is a low-power low-voltage upgrade to the classic 74FCT374 family of devices. It is a high-performance octal flip-flop with individual clock presettable synchronous software resets. Each flip-flop has independent clocks and data inputs with true output which can be preset via individual synchronous software reset inputs.

Application

The PI74FCT374ATS can be used in a wide variety of applications, including but not limited to: high-speed memory systems, spread spectrum clock management, data acquisition, digital signal processing and communications systems. It is also suitable for use in FPGA and CPLD designs for high-throughput data capture and buffering/holding operations. The PI74FCT374ATS can be used in applications that require low-voltage, low-power operation.

Working Principle

The PI74FCT374ATS is an octal flip-flop device with eight independent flip-flops. All eight flip-flops have an active-low clock input line ( C), a data input (D) and a true output (Q). The device has two active-low synchronous reset inputs (RESET A and RESET B) which can simultaneously reset all the flip-flops. The RESET A and RESET B inputs also have a maskable pulse option. When the RESET A or RESET B is in conjunction with a LOW pulse at the Maskable Pulse Input (MPI), the flip-flops are reset. This feature is useful when the flip-flops need to be reset in between operations.

The clock inputs of the PI74FCT374ATS are edge-triggered, so the outputs will be updated on the rising edge of the clock. The outputs are set when the data input (D) is HIGH and reset when low. The device also has an asynchronous preset which is active as long as the corresponding Preset (PRE) input is held LOW. The device will also reset when either of the reset input is held LOW.

Features

The PI74FCT374ATS offers several features that make it the perfect choice for applications that require low-power and low-voltage operation. It has a low power consumption (135 mW maximum) and a low supply voltage of 1.5V to 3.6V. It also has a fast clock speed and strobe delay time of 8ns maximum in a 3.3V environment. It also offers an integrated Schmitt-trigger on the clock inputs, providing users with excellent noise immunity.

The device also has an Asynchronous Preset function that allows the user to preset any combination of outputs with a pulse or holding the preset input LOW. In addition, it has an optional Maskable Pulse Input (MPI) which when used in conjunction with the synchronous reset input can provide a controlled resetting of the outputs in between operations.

Conclusion

The PI74FCT374ATS is a low-power, low-voltage upgrade to the classic 74FCT374 family of devices. It is a high-performance octal flip-flop with individual clock presettable synchronous software resets and is suitable for use in FPGA and CPLD designs. It has a low power consumption and a low supply voltage, making it ideal for applications that require low-power and low-voltage operation. It also has an integrated Schmitt-trigger on the clock inputs, providing excellent noise immunity, and an Asynchronous Preset function for preset any combination of outputs. Additionally, it has an optional Maskable Pulse Input which can provide a controlled resetting of the outputs in between operations.

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