ON Semiconductor 74LCX574MSA Octal D-Type Flip-Flop

The 74LCX574MSA from ON Semiconductor is a high-performance, octal D-type flip-flop integrated circuit designed for use in applications requiring a high-speed and low-power interface or memory buffer. This device is part of the LCX family, which is known for its 5V tolerant inputs and outputs, making it compatible with mixed-voltage systems.

The 74LCX574MSA features eight edge-triggered flip-flops with individual D-type inputs and 3-STATE outputs. The flip-flops capture the state of their respective D-inputs at the rising edge of the clock input, and the data is available at the outputs after the clock's rising edge. This makes the device ideal for use in implementing synchronous state machines, buffer registers, and bus interfaces.

Equipped with a bus-hold feature, the 74LCX574MSA maintains the last active input state when no input is given, which helps in preventing floating inputs and reduces the need for external pull-up or pull-down resistors. The 3-STATE outputs allow for connection to a bus-structured system, providing high-impedance states during power-up, power-down, or when the output-enable (OE) input is high.

Constructed with advanced CMOS technology, this flip-flop offers low power dissipation yet high-speed operation. It can operate over a broad voltage range of 2V to 3.6V, providing compatibility with lower voltage systems, and ensuring minimal power consumption. The 74LCX574MSA also features a ±24 mA output drive at 3.0V, which is suitable for driving heavy loads or for driving multiple lines in parallel.

ON Semiconductor has packaged the 74LCX574MSA in a space-saving 20-lead SOIC package, making it suitable for surface-mounted technology (SMT) and saving valuable board space in dense circuit designs. The device is specified for operation from -40°C to +85°C, ensuring reliability and performance across a wide range of environmental conditions.

In summary, the 74LCX574MSA is a versatile and reliable component for designers looking to incorporate a high-speed, low-power octal flip-flop into their digital systems. With its 5V tolerant inputs, bus-hold feature, and 3-STATE outputs, it offers a high degree of flexibility and ease of use in a variety of applications.