CY7B991V-5JI

Overview

The CY7B991V-5JI is a low voltage programmable skew clock buffer from the RoboClock series by Infineon Technologies. It operates as a zero-delay programmable PLL clock buffer with an 8:8 input-to-output ratio, supporting frequencies up to 80 MHz. The device accepts LVTTL outputs and features a 3-state input. It functions within a supply voltage range of 2.97 V to 3.63 V and supports an operating temperature range of -40°C to +85°C. The component is housed in a 32-LCC (J-Lead) package, specifically 32-PLCC, designed for surface mount installation.

Feature Summary

• Zero-delay programmable PLL architecture for precise clock synchronization
• 8:8 input-to-output ratio with LVTTL output levels
• Supports maximum frequency of 80 MHz
• 3-state input capability for bus isolation

Applications

• Low voltage programmable skew clock distribution
• System clock buffering in digital circuits
• Timing synchronization in high-speed data processing systems

Procurement Notes

Verify the specific suffix 'JI' against official Infineon documentation to confirm the exact temperature grade and package variant, as ordering suffixes define critical electrical and mechanical parameters. Ensure compatibility with the required 32-PLCC footprint and surface mount assembly processes during procurement planning.

Selection Notes

Select this component when a zero-delay buffer with an 8:8 fan-out is required for LVTTL interfaces. Confirm that the system power supply remains within the 2.97 V to 3.63 V range and that the ambient operating conditions fall between -40°C and +85°C. Verify that the 80 MHz maximum frequency meets the design requirements.

Part Context

This part belongs to the RoboClock series, which specializes in low voltage programmable skew clock buffers. These devices are engineered to provide precise timing control and jitter reduction for complex digital systems requiring multiple synchronized clock domains.

Replacement Considerations

Check for direct cross-references within the CY7B991V family or other RoboClock series parts with identical 8:8 ratios and PLCC-32 packaging. Verify pinout compatibility and electrical specifications before substituting.