Original Part
Alternative Part
1. ISL4485EIBZ Substitution Conclusion
This model can serve as a conditional substitute. The key differences are: 1) Data rate (20Mbps vs. 10Mbps). The higher performance provides headroom for high-speed applications, though no practical gain is realized if the original system does not utilize this full bandwidth. 2) Supply voltage range (4.5V~5.5V vs. 3V~5.5V). The significantly narrower range is a critical substitution constraint; this model is entirely incompatible if the original design relies on 3.3V or a wide-voltage supply. 3) Receiver hysteresis (70mV vs. 35mV). The greater hysteresis offers superior noise immunity, enabling more reliable communication in electrically noisy environments. Direct substitution is only viable if the original system operates on a single 5V supply without requiring 3.3V compatibility, potentially offering benefits of higher speed and improved noise resistance.
2. LTC1482IS8PBF Substitution Conclusion
This model is unsuitable for direct substitution. The differences are: 1) Data rate (4Mbps vs. 10Mbps). At only 40% of the original specification, it becomes a bottleneck in applications demanding high communication rates (near 10Mbps), potentially causing communication failure. 2) Supply voltage range (4.75V~5.25V vs. 3V~5.5V). The range is not only narrower but also typically requires a precise 5V supply. It is completely unusable in 3.3V systems and imposes stricter tolerance requirements on the 5V rail. 3) Receiver hysteresis (30mV vs. 35mV). It offers slightly weaker noise immunity. In summary, the significantly lower data rate and the stringent 5V supply requirement are two critical disqualifying factors, preventing it from being a general-purpose substitute for the SN75HVD08D.
Analysis ID: 7EDB-1FAA000
Based on part parameters and for reference only. Not to be used for procurement or production.
SkyChip © 2026, Email: sales@skychip.com