Original Part
Alternative Part
1. ADM3485EARZ-REEL7 Substitution Conclusion
The ADM3485EARZ-REEL7 is not a direct replacement for the SN75HVD1176D, primarily due to its supply voltage range of 3V to 3.6V, which is incompatible with the original 5V system. Direct substitution may result in level mismatch or communication failure. Furthermore, its data rate of 10 Mbps is significantly lower than the original device's 40 Mbps, which may not meet performance requirements in high-speed communication applications. Although its receiver hysteresis of 50 mV is slightly higher, offering some improvement in noise immunity, the fundamental differences in voltage and data rate limit its feasibility as a replacement. It is only suitable for low-speed systems operating at 3.3V.
2. SP483EEN-L/TR Substitution Conclusion
The SP483EEN-L/TR can serve as a substitute for the SN75HVD1176D under specific conditions, but its data rate of 250 kbps is much lower than the original 40 Mbps, limiting its use to low-speed communication scenarios. Additionally, its receiver hysteresis of 20 mV is relatively small, resulting in weaker noise immunity that may affect signal integrity in high-interference environments. While its supply voltage range of 4.75V to 5.25V matches the original part, the significant performance differences restrict its application. Therefore, it can only be considered as a downgraded replacement in cost-sensitive, low-noise applications where speed is not critical, and system compatibility must be carefully evaluated.
Analysis ID: EAD2-F85B000
Based on part parameters and for reference only. Not to be used for procurement or production.
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