NXP 74LVC574APW: Octal D-Type Flip-Flop with 3V CMOS Logic and 5V Tolerant Inputs/Outputs

The NXP 74LVC574APW is a high-performance, octal D-type flip-flop designed to address the needs of modern digital systems where interfacing between different voltage domains is critical. This integrated circuit combines the benefits of low-voltage CMOS technology with the flexibility of 5V tolerant inputs and outputs, making it an essential component for mixed-voltage applications.

Constructed with advanced silicon gate CMOS technology, the 74LVC574APW operates at a nominal supply voltage of 3.3V, ensuring low power dissipation—a crucial factor for power-sensitive designs. Despite its 3V core logic, it features 5V tolerant I/O pins, allowing it to seamlessly interface with legacy 5V systems without requiring additional level-shifting components. This capability significantly simplifies board design and reduces both component count and system cost.

The device incorporates eight edge-triggered D-type flip-flops with a common clock (CP) and output enable (OE) input. On the positive transition of the clock signal, data at the D inputs is transferred to the corresponding Q outputs. The outputs are placed in a high-impedance state when the output enable is set high, providing efficient bus interfacing and preventing data bus contention in multi-master systems.

Housed in a TSSOP-20 package, the 74LVC574APW offers a compact footprint, ideal for space-constrained applications. It also includes ESD protection exceeding 2000V HBM, enhancing reliability in harsh environments. Typical applications include data storage, register banks, bus interfacing, and general digital logic functions in areas such as telecommunications, computing, and industrial automation.

ICGOOODFIND: The 74LVC574APW is a robust and versatile octal flip-flop that excels in mixed-voltage environments, offering a perfect blend of low power consumption, high-speed operation, and superior interfacing capabilities.

Keywords:

5V Tolerant, Octal Flip-Flop, Low-Voltage CMOS, Mixed-Voltage Interface, TSSOP Package