Original Part
Alternative Part
1. ISL83072EIBZA Substitution Conclusion
Direct substitution is not recommended. This part exhibits significant deviations from the original in core electrical parameters. Its operating voltage is 3.3V (3V to 3.6V), compared to the original's 5V (4.5V to 5.5V), making it incompatible without a power supply redesign. Its data rate is limited to 250kbps, far below the original's 20Mbps capability; this would cause communication failure if the existing system operates at higher speeds. Furthermore, its receiver hysteresis (15 mV) is only half that of the original (30 mV), resulting in weaker noise immunity under identical conditions. These differences collectively restrict its use to specific low-speed, 3.3V applications, disqualifying it as a universal drop-in replacement.
2. SP3088EEN-L/TR Substitution Conclusion
Direct substitution is recommended. This device closely matches the original in key performance specifications. Both share the same 5V operating voltage range (4.5V to 5.5V) and a 20Mbps data rate, ensuring full compatibility with the existing power supply and communication bandwidth. Although its receiver hysteresis (100 mV) is notably higher than the original's (30 mV), this provides a larger noise margin. This translates to superior noise immunity and more robust communication performance in harsh bus environments with common-mode noise or signal ringing, constituting a positive performance enhancement. In terms of functionality and electrical compatibility, it serves as a qualified, and in fact superior, direct replacement for the original part.
Analysis ID: BA60-0FFD000
Based on part parameters and for reference only. Not to be used for procurement or production.
SkyChip © 2026, Email: sales@skychip.com