MC74LCX574DTR2G: Low-Voltage Octal D-Type Flip-Flop with 5V Tolerant Inputs and Outputs

In the realm of modern digital system design, managing mixed-voltage environments is a common yet critical challenge. The MC74LCX574DTR2G stands out as a pivotal solution, engineered to bridge the gap between low-voltage core logic and legacy 5V system components. This octal D-type flip-flop integrates eight edge-triggered, D-type flip-flops with a common clock (CP) and output enable (OE) input, making it an ideal choice for bus-oriented applications including data registration, temporary storage, and data transfer.

A defining feature of this integrated circuit is its operation at a low voltage of 2.0V to 3.6V, which aligns perfectly with the needs of today's energy-efficient and portable devices. Despite its low-voltage core, the device incorporates 5V tolerant inputs and outputs. This capability allows it to seamlessly interface with higher voltage devices, such as 5V TTL logic, without the need for additional level-shifting components. This not only simplifies board design but also reduces overall system cost and complexity.

The MC74LCX574DTR2G is designed for high-speed performance while minimizing power consumption. It boasts high-impedance outputs during power-down, which is crucial for preventing current backflow and protecting sensitive system components. The device is characterized for operation from -40°C to +85°C, ensuring reliability across a wide range of commercial and industrial applications. Its TSSOP-20 package offers a compact footprint, which is advantageous for space-constrained PCB layouts.

Furthermore, the flip-flop features a buffered common clock and output enable, ensuring robust and synchronous data handling. The non-inverting outputs provide straightforward signal integrity, making data flow predictable and easier to manage within a larger system architecture.

ICGOOODFIND: The MC74LCX574DTR2G is an essential component for designers tackling mixed-voltage systems, offering a reliable, high-performance, and cost-effective method for data storage and transfer without the overhead of external voltage translators.

Keywords: Low-Voltage, 5V Tolerant, Octal D-Type Flip-Flop, High-Speed, Mixed-Voltage Interface.