The TC74HC574AF is a high-speed CMOS octal D-type flip-flop with 3-state outputs manufactured by Toshiba Semiconductor and Storage. This integrated circuit contains eight D-type flip-flops with a common clock input, and each flip-flop has a 3-state output. This makes it well-suited for applications like data storage, registers, and memory interfacing in bus-oriented systems.

Applications

• Register circuits
• Data storage
• Memory interfacing
• Bus-oriented systems
• Microprocessor systems

Features

• High-speed operation
• Low power consumption
• Wide operating voltage range: 2V to 6V
• Octal D-type flip-flops
• Common clock input
• 3-state outputs
• Positive-edge triggered clock
• Operating temperature range: -40°C to +85°C

Benefits

• Efficient data storage using eight D-type flip-flops in a single package.
• Easy interfacing to bus-oriented systems due to the 3-state outputs.
• Reduced power consumption making it suitable for battery-powered applications.
• Flexible design due to the wide operating voltage range.
• High noise immunity improves system reliability.

Additional Details

The TC74HC574AF comes in a SOP-20 (Small Outline Package) for efficient PCB usage. When the clock input transitions from low to high, the data present at the D inputs is loaded into the flip-flops. The 3-state outputs are controlled by the Output Enable (OE) pin. When OE is low, the outputs are enabled and the data from the flip-flops is available. When OE is high, the outputs are in a high-impedance state. The device utilizes CMOS technology ensuring lower power consumption and higher noise margin.

The supply voltage range is between 2V and 6V, with specifications detailed in the datasheet. Correct data setup and hold times must be observed relative to the clock edge for accurate data capture. The device is designed to be compatible with other HC-series logic components.