The QS74FCT574ATSO is an octal D-type flip-flop with three-state outputs manufactured by QSI. It is designed for high-speed performance and low power consumption using Fast CMOS Technology (FCT). The device features eight D-type flip-flops with a common clock (CLK) and output enable (OE) input. Data at the D inputs is transferred to the Q outputs on the positive-going edge of the clock pulse if OE is low. Output Enable (OE) controls the three-state outputs. When OE is high, the outputs are in the high-impedance state.

Applications:

• Register Files: Storing and retrieving data in register-based systems.
• Memory Address Registers: Storing memory addresses for access.
• Data Buffering: Temporarily storing data for processing.
• Control Registers: Storing control bits for system operation.
• Microprocessor Systems: Interfacing peripherals to microprocessors.

Features:

• Fast CMOS Technology (FCT): Provides high-speed performance with low power consumption.
• Octal D-Type Flip-Flop: Eight independent D-type flip-flops in a single package.
• Three-State Outputs: Outputs can be in a high, low, or high-impedance state.
• Common Clock Input: Simplifies clock distribution and timing control.
• Output Enable (OE) Control: Allows for independent control of the outputs, enabling bus isolation.
• TTL-Compatible Inputs: Compatible with standard TTL logic levels.

Benefits:

• Improved System Performance: High-speed operation reduces propagation delays, improving overall system performance.
• Reduced Power Consumption: Low power consumption makes it suitable for battery-powered applications.
• Flexible Data Handling: Three-state outputs allow for easy bus isolation and data management.
• Simplified Clocking: Common clock input simplifies clock distribution and timing.
• Easy Integration: TTL-compatible inputs allow for easy integration with existing TTL logic.

Technical Specifications:

The QS74FCT574ATSO typically operates with a supply voltage of 5V. Propagation delays are usually in the nanosecond range. The operating temperature range is generally from -40°C to +85°C. It is commonly available in a Small Outline (SO) package, suitable for surface mount technology.