8521BYLF

Overview

The 8521BYLF is a low skew, 1-to-9 differential-to-HSTL fanout buffer manufactured by Renesas Electronics. It features two selectable clock inputs (CLK and nCLK) capable of accepting most standard differential signaling formats. The device operates on a single 3.3V core voltage supply within a 0°C to 70°C temperature range. Packaged in a 32-LQFP (7x7 mm) surface-mount format, it provides nine HSTL outputs for clock distribution applications requiring precise timing alignment.

Feature Summary

• Supports two selectable differential clock inputs for flexible signal routing
• Converts differential input signals to nine HSTL compliant outputs
• Designed for low skew performance to maintain signal integrity in high-speed systems

Applications

• High-speed clock distribution networks
• Server and storage system backplanes
• Telecommunications infrastructure equipment

Procurement Notes

Verify the specific suffix 'BYLF' against the official Renesas datasheet to confirm package type and lead finish specifications. Ensure the operating environment remains within the documented 0°C to 70°C commercial temperature range. Confirm that the target circuit design supports the required 3.3V core voltage supply levels for proper functionality.

Selection Notes

Select this component when a single differential clock source must be distributed to nine separate HSTL loads with minimal timing deviation. It is suitable for designs requiring input flexibility between different differential standards while maintaining strict output compatibility with HSTL interfaces in digital logic circuits.

Part Context

This part belongs to the 8521 series of clock buffers, which are engineered for high-performance data communication systems. The series focuses on providing reliable clock distribution with low jitter and skew characteristics essential for modern synchronous digital designs.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Verify cross-reference data through official Renesas channels before considering alternative components.