CY7B991-7JXCT

Overview

The CY7B991-7JXCT is a zero-delay programmable PLL clock buffer from the RoboClock series, manufactured by Infineon Technologies. It operates on a single 5V supply with a voltage range of 4.5V to 5.5V and supports frequencies up to 80 MHz. The device features TTL-compatible inputs and outputs, housed in a 32-PLCC surface-mount package. Designed for low jitter performance, it provides eight true outputs with programmable skew capabilities.

Feature Summary

• Zero-delay programmable PLL architecture
• 8:8 input-to-output ratio with TTL levels
• Frequency range up to 80 MHz
• Single 5V power supply operation

Applications

• High-performance system clock distribution
• Programmable skew clock buffering
• Low jitter clock generation circuits

Procurement Notes

Verify the specific ordering suffix 'T' indicates Tape & Reel packaging rather than tube. Confirm RoHS compliance status through official documentation as local data references vary. Ensure the component matches the 32-LCC J-Lead physical dimensions for PCB footprint compatibility.

Selection Notes

Select this component when a zero-delay PLL solution with TTL I/O is required. Verify that the 80 MHz maximum frequency meets system timing requirements. Check if the 32-PLCC package fits the available board space compared to alternative packages like VQFN or TQFP.

Part Context

This part belongs to the RoboClock family of clock drivers. It serves as a programmable skew buffer within the broader portfolio of PLL-based clock solutions offered by Infineon Technologies for high-speed digital systems.

Replacement Considerations

Check for direct substitutes within the CY7B991 series. Verify pinout compatibility before replacing with other clock buffer families.