CY7B991-5JIT

Overview

The CY7B991-5JIT is a zero-delay fanout buffer from the RoboClock series by Cypress Semiconductor. It provides an 1:8 input-to-output ratio for clock distribution. The device operates with CMOS inputs and outputs, supporting a supply voltage range of 4.5V to 5.5V. It is designed for surface mount installation in a 32-LCC (J-Lead) package, specifically identified as a 32-PLCC with dimensions of 11.43x13.97 mm. The component supports an operating temperature range of -40°C to 85°C.

Feature Summary

• Zero-delay buffer architecture for precise clock synchronization
• 1:8 fanout ratio for single-input clock distribution
• CMOS compatible input and output signaling
• Operates on 4.5V to 5.5V supply voltage

Applications

• High-performance system clock distribution networks
• FPGA and ASIC clock tree buffering
• Telecommunications equipment timing circuits

Procurement Notes

Verify the specific ordering suffix against manufacturer documentation to confirm pin compatibility and electrical characteristics. Confirm that the 32-PLCC package variant matches the target PCB footprint requirements. Ensure the supply voltage constraints align with the system design specifications before procurement.

Selection Notes

Select this component when a zero-delay buffer with an 1:8 ratio is required for CMOS clock signals. Ensure the design environment supports the 4.5V to 5.5V operating range. Verify that the 32-LCC J-Lead package fits within the available board space and thermal constraints for the -40°C to 85°C application range.

Part Context

This part belongs to the RoboClock family of clock buffers. It serves as a distribution element for high-speed digital systems requiring low skew clock propagation. The device integrates PLL functionality to eliminate delay between input and output edges.