RC21008A000GND#KB0

Clock Generators, PLLs, Frequency Synthesizers Overview

The RC21008A000GND#KB0 is a VersaClock 7 programmable clock generator from Renesas Electronics. It features an integrated crystal and supports flexible operating voltages of 1.8V, 2.5V, or 3.3V. The device provides up to eight outputs with LVDS, LP-HCSL, or LVCMOS types, covering frequencies from 1kHz to 650MHz for differential outputs and up to 200MHz for LVCMOS. It delivers standard RMS phase jitter of 150fs within the 12kHz-20MHz range. Designed for PCIe Gen 5/6/7 compliance, it utilizes a compact 5mm x 5mm package.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Integrates an on-chip oscillator crystal to reduce board space and optimize bill of materials.
• Supports hardware configuration via selectable pins or storage in one-time programmable memory and external I2C EEPROM.
• Provides multiple output options including LVDS, LP-HCSL, and LVCMOS to accommodate diverse interface requirements.

Clock Generators, PLLs, Frequency Synthesizers Applications

• High-performance computing systems requiring low jitter reference clocks
• Data communication infrastructure adhering to PCIe Gen 5, 6, and 7 standards
• Industrial applications needing precise timing near PHY, switch, ASIC, or FPGA components

Clock Generators, PLLs, Frequency Synthesizers Procurement Notes

Verify the specific suffix #KB0 against the manufacturer's current datasheet to confirm packaging type and availability status. Ensure the selected variant matches the required output count and voltage levels for the target design. Cross-reference the part number with official Renesas documentation to validate RoHS compliance and lead time specifications before finalizing procurement plans.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this component when designing for high-speed interfaces like PCIe Gen 5/6/7 that demand strict jitter performance. The integrated crystal feature makes it suitable for space-constrained layouts where BOM optimization is critical. Consider the available output configurations and voltage flexibility to ensure compatibility with the host system's power rails and signal integrity requirements.

Clock Generators, PLLs, Frequency Synthesizers Part Context

This part belongs to the VersaClock 7 series, designed for high-performance computing and data communication. It serves as a programmable clock generator capable of generating reference clocks with low jitter for sensitive components such as FPGAs and ASICs. The series emphasizes configurability and compliance with modern high-speed serial standards.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

Consult the official Renesas replacement guide for verified substitutes. Generic cross-references may not match the integrated crystal or specific jitter performance metrics required for PCIe Gen 7 compliance.