Original Part
62.5 MHz XO (Standard) LVCMOS, LVTTL Oscillator 3.3V Enable/Disable 4-SMD, No Lead
Alternative Part
62.5 MHz XO (Standard) LVCMOS, LVTTL Oscillator 3.3V Enable/Disable 4-SMD, No Lead
62.5 MHz XO (Standard) LVCMOS, LVTTL Oscillator 2.5V Enable/Disable 4-SMD, No Lead
1. SIT8208AI-G1-33E-62.500000Y Substitution Conclusion
Feasible, representing a direct performance upgrade. This model is fully compatible with the original part in all core electrical and physical specifications, including supply voltage (3.3V), output logic (LVCMOS/LVTTL), package footprint, and maximum operating current. The key improvement is its frequency stability, which has been enhanced from ±25ppm to a superior ±20ppm. Substituting with this model will improve system clock timing accuracy and temperature stability, making it particularly advantageous for timing‑critical applications such as high‑speed communications and precision measurement. No circuit modifications are required for a drop‑in replacement.
2. SIT8208AI-G2-25E-62.500000T Substitution Conclusion
Not feasible, or at best a conditional substitution requiring design re‑evaluation. The primary difference from the original model is the supply voltage, which is reduced from 3.3V to 2.5V, even though its frequency stability (±25ppm) remains the same. This voltage mismatch prevents proper operation on a 3.3V‑designed power rail. If forced into the original circuit, its LVCMOS logic‑high output will be lower than the original part’s, potentially causing downstream devices (e.g., FPGAs, processors) to fail in recognizing a logic “1.” This could lead to system timing errors, communication failures, or failure to boot. Substitution may only be considered if the entire relevant logic‑level domain in the target system operates at 2.5V.
Analysis ID: F959-6353000
Based on part parameters and for reference only. Not to be used for procurement or production.
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