CY7B991V-5JC

Overview

The CY7B991V-5JC is a low voltage programmable skew clock buffer from the RoboClock series, manufactured by Cypress Semiconductor Corp. It operates within a supply voltage range of 2.97V to 3.63V and supports a maximum frequency of 80 MHz. The device features a single circuit with an 8:8 input-to-output ratio, providing LVTTL outputs. It is housed in a 32-LCC (J-Lead) package, also referred to as 32-PLCC, measuring 11.43x13.97 mm. Designed for surface mount installation, it functions reliably across an operating temperature range of 0°C to 70°C.

Feature Summary

• RoboClock series zero-delay programmable PLL clock buffer
• 8:8 fanout ratio with LVTTL outputs
• Maximum operating frequency of 80 MHz
• 32-LCC (J-Lead) surface mount package

Applications

• Low voltage programmable skew clock distribution
• System clock buffering and driving
• High-speed digital circuit timing synchronization

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status and lead-free specifications prior to procurement. Check for end-of-life notifications or obsolescence warnings. Ensure packaging integrity matches tube requirements for surface mount handling. Validate lot codes against current manufacturing batches.

Selection Notes

Select this component when an 8:8 clock fanout with LVTTL outputs is required at frequencies up to 80 MHz. Ensure the design environment supports the 2.97V to 3.63V supply voltage range. Verify that the 32-LCC package footprint fits the PCB layout constraints. Consider thermal management capabilities within the 0°C to 70°C operating temperature range.

Part Context

Part of the RoboClock family designed for precise clock signal management. Manufactured by Cypress Semiconductor Corp, now part of Infineon Technologies. The CY7B991V series offers programmable skew characteristics for minimizing jitter in high-speed systems. This specific model provides balanced 8:8 distribution for complex digital architectures.

Replacement Considerations

Check for equivalent parts within the same RoboClock family offering similar 8:8 ratios and 80 MHz performance. Verify pin compatibility and electrical parameters before substitution. Consult official replacement guides for discontinued components.