CY74FCT2573CTSOCE4

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Logic - Latches are an essential part of many digital electronics systems, used to store values and make decisions from within a circuit. The CY74FCT2573CTSOCE4 is a popular logic latch device, providing reliable storage of basic logic values in a robust, low-power package. This document will provide an overview of the CY74FCT2573CTSOCE4, detailing its range of application fields and working principle.

Overview of the CY74FCT2573CTSOCE4

The CY74FCT2573CTSOCE4 is an edge-triggered 3-state flip-flop from Cypress Semiconductor, designed for single-port memory and low-power logic applications. The device integrates eight 3-state flip-flops in a single 20-pin DIP package, with an operating temperature range of -55°C to +125°C. Outputs are confidently guaranteed to remain valid down to 1.0V, despite being operated at a minimum supply voltage of just 2.0V.

The CY74FCT2573CTSOCE4 supports logic-level inputs of 0.8V to 2.7V and also employs tri-state outputs capable of driving up to 15mA of load current. All outputs are wired-ANDed together and the device has been tested to ensure it is fully compliant with various industry standards, including the Consumer Electronics Association\'s TIA/EIA-422A and TIA/EIA-423A.

Application fields

The CY74FCT2573CTSOCE4 is useful in many digital electronics applications where reliable, low-power and noise-tolerant flip-flops are required. It is commonly used for single-port memory applications, such as cascading data, such as shift-registers, line drivers and address registers, and for implementing parallel-to-serial conversion. The device is also capable of driving large loads, making it suitable for use in low- power, low-voltage logic operations.

The CY74FCT2573CTSOCE4 also finds application in high-speed logic circuits, by offering improved noise immunity and higher system speeds. Special pin configurations are provided for easy interfacing to other components, and the device features an 8-bit wide data path, making it suitable for a wide range of fast logic operations. When used with external logic, the 3-state outputs can drive multiple loads and offer better system timing than with an unbuffered solution.

Working Principle

The CY74FCT2573CTSOCE4 employs 3-state flip-flops to provide reliable storage of basic logic values in a robust, low-power package. Each flip-flop is set up as an edge-triggered device and is controlled by two inputs: data (D) and clock (C). When a logic low level is applied to the clock input, a logic high level on the data input sets the output high. A logic low on the data input will cause the output to remain low.

The device features a two-input AND gate, connected to the output of the flip-flop and an enable (EN) input. The AND gate allows for the output to maintain a constant state, by connecting the D and C inputs to 0V, regardless of the input logic levels.

The 3-state buffer of the CY74FCT2573CTSOCE4 employs an active-low output enable input, used for tri-stating the output and allowing for multiple outputs on buses or networks to be used simultaneously. When a logic high is applied to the EN input, the output is enabled and will be driven as per the input logic levels. When a logic low is used, the output will be in a high impedance state and allow other devices to drive the bus.

Conclusion

The CY74FCT2573CTSOCE4 is an important logic latch device, providing reliable storage of basic logic values in a robust, low-power package. It is suitable for many digital electronics applications, ranging from single-port memory, to interfacing with other components, to driving large loads. The device is also capable of handling multiple loads in applications that require fast logic operations. By employing a 3-state buffer with an active-low output enable input, the device is able to allow for multiple outputs on buses or networks to be used simultaneously.

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