The QS5V991-5JRI is a high-performance CMOS quad D flip-flop with 3-state outputs manufactured by QSI. This device is designed for high-speed synchronous or asynchronous data transfer applications where low power dissipation and high noise immunity are essential.

Applications:

• Data buffers
• Address registers
• Storage elements in digital systems
• Memory address decoding
• Clocked data latching

Features:

• High-speed operation: tpd = Typically 4.5ns
• Low power consumption: ICC = Typically 8µA
• 3-State Outputs: Directly drives bus-oriented systems
• Quad D Flip-Flops: Contains four independent D-type flip-flops
• Positive-edge triggered clock
• Direct clear input
• Wide operating voltage range: 2V to 5.5V
• CMOS Technology: Provides high noise immunity

Benefits:

• Improved system performance due to high-speed operation.
• Reduced power consumption, making it suitable for battery-powered applications.
• Versatile use in various digital applications due to its quad structure.
• Easy integration into bus-oriented systems due to 3-state outputs.
• Enhanced data integrity through the use of positive-edge triggering.
• Simplified system design with direct clear input.

Additional Details:

The QS5V991-5JRI consists of four edge-triggered D-type flip-flops with individual D inputs and Q outputs. The clock (CLK) and clear (CLR) inputs are common to all flip-flops. Information at the D input is transferred to the Q output on the positive-going edge of the clock pulse. A low level at the CLR input sets the Q output to a logic low level, independent of the levels of the D and CLK inputs. The 3-state outputs allow direct interface to common bus systems. The device is available in various packages including SOIC and TSSOP.