Original Part
62.5 MHz XO (Standard) LVCMOS, LVTTL Oscillator 2.8V Enable/Disable 4-SMD, No Lead
Alternative Part
62.5 MHz XO (Standard) LVCMOS, LVTTL Oscillator 2.5V Enable/Disable 4-SMD, No Lead
62.5 MHz XO (Standard) LVCMOS, LVTTL Oscillator 3.3V Enable/Disable 4-SMD, No Lead
1. SIT8208AI-G1-25E-62.500000Y Substitution Conclusion
Direct substitution is not recommended. The primary difference between this part and the original model (2.8V) is its 2.5V supply voltage. While both share identical frequency, stability, package, and logic levels (LVCMOS/LVTTL), the reduced voltage may result in insufficient output signal amplitude. This could fail to meet the original design's high-level threshold requirements, potentially leading to timing or noise margin issues. Substitution may be considered only if the system supply can be adjusted to 2.5V and downstream components are compatible with this voltage level; otherwise, signal integrity must be re-verified.
2. SIT8208AI-G1-33E-62.500000T Substitution Conclusion
Substitution may be feasible after careful evaluation. This model operates at a 3.3V supply, higher than the original 2.8V, while maintaining LVCMOS/LVTTL output logic levels. The elevated high-level voltage may exceed the maximum input voltage tolerance of downstream devices, posing an overvoltage risk. If the system supply is 3.3V and downstream components support 3.3V input, compatibility is generally good. However, note that power consumption may increase slightly (due to higher voltage at similar current specifications). Circuit voltage compatibility must be confirmed prior to actual substitution.
Analysis ID: 2A6B-77CD000
Based on part parameters and for reference only. Not to be used for procurement or production.
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