ON Semiconductor MC74HC574ADW Octal D-Type Flip-Flop with 3-State Outputs

The MC74HC574ADW is a high-performance, octal D-type flip-flop integrated circuit from ON Semiconductor, designed for use in a wide range of digital applications. This device features eight edge-triggered flip-flops with individual D-type inputs and three-state outputs, making it an ideal choice for bus-oriented systems.

The MC74HC574ADW is fabricated with silicon gate CMOS technology, which ensures low power consumption while maintaining high-speed operation. This technology also provides the benefit of a wide operating voltage range, from 2V to 6V, allowing the device to be used in various logic level environments.

Each flip-flop has a dedicated input (D), output (Q), output enable (OE), and clock (CLK) pin. The flip-flops capture the data present at their D inputs on the rising edge of the clock signal, and the data is available at the Q outputs when the output enable (OE) is set low. When OE is set high, the outputs go into a high-impedance state, effectively disconnecting them from the bus line. This three-state output design enables multiple devices to share the same bus line without interference, which is crucial for efficient data communication in digital systems.

The MC74HC574ADW comes in a 20-pin SOIC package, providing a compact footprint while ensuring adequate pin spacing for easy integration into PCB designs. The device also features latch-up performance that exceeds 250mA per JESD 17, and ESD protection that exceeds JESD 22, ensuring robust performance and reliability in harsh environments.

Common applications for the MC74HC574ADW include:

• Buffer/Storage registers
• Shift registers
• Data storage
• Communication systems
• Microprocessor bus systems

ON Semiconductor's commitment to quality ensures that the MC74HC574ADW meets the stringent requirements for commercial and industrial electronic systems. With its combination of low power consumption, high-speed operation, and three-state outputs, this octal D-type flip-flop is a versatile and reliable solution for your digital logic needs.