NXP 74ALVC574PW: A 3V Octal D-Type Flip-Flop with 5V Tolerant Inputs/Outputs and Tri-State Outputs

The NXP 74ALVC574PW is a high-performance, octal D-type flip-flop designed for use in advanced digital systems where robust signal integrity and voltage level flexibility are critical. Fabricated with NXP's advanced Advanced Low-Voltage CMOS (ALVC) technology, this device operates at a nominal supply voltage of 3.3V, making it ideal for modern low-power applications while maintaining high-speed performance.

A key feature of the 74ALVC574PW is its 5V-tolerant inputs and outputs. This capability allows the device to seamlessly interface with higher voltage components (e.g., 5V TTL systems) without requiring additional level-shifting circuitry. This not only simplifies board design but also enhances system reliability by preventing voltage mismatch issues. The inputs can safely accept voltages up to 5.5V, even when the device’s VCC is as low as 2.7V, providing exceptional flexibility in mixed-voltage environments.

The flip-flop incorporates tri-state outputs, which allow the outputs to be placed in a high-impedance state when not in use. This is controlled by the Output Enable (OE) pin, facilitating efficient bus arbitration and preventing data collisions in multi-point or shared bus architectures. Each flip-flop features a positive-edge-triggered D-type input and a clock (CP) input, ensuring precise data capture and transfer on the low-to-high clock transition.

Housed in a TSSOP-20 (PW) package, the 74ALVC574PW offers a compact footprint, making it suitable for space-constrained applications. It is characterized for operation from -40°C to +85°C, ensuring robustness across industrial temperature ranges. Typical applications include data storage, buffer registers, I/O ports, and working registers in computing, networking, and communication infrastructure.

ICGOOODFIND: The 74ALVC574PW is an excellent choice for designers seeking a reliable, high-speed octal flip-flop with mixed-voltage interoperability and bus-friendly tri-state outputs, streamlining integration in complex digital systems.

Keywords:

5V-tolerant, Tri-State Outputs, Octal D-Type Flip-Flop, Low-Voltage CMOS, Mixed-Voltage Interface