1. SIT8208AI-G1-28E-62.500000Y Substitution Conclusion This model can serve as a direct drop-in replacement for the original part, with minor performance improvements. The key difference lies in the frequency stability, which has been enhanced from ±25ppm to ±20ppm. This tighter tolerance reduces output frequency deviation under variations in temperature, voltage, and other environmental factors, resulting in better long-term accuracy and stability of the clock signal. All other critical parameters—including frequency, supply voltage (2.8V), output type, package, and power consumption—remain identical. Therefore, this substitution carries no electrical or mechanical compatibility risks and can be used directly in designs with equivalent or stricter clock accuracy requirements.