Original Part
Alternative Part
1. ADM3078EYRZ-REEL7 Substitution Conclusion
The ADM3078EYRZ-REEL7 matches the original XR3078XID-F in package, supply voltage (3V–3.6V), protocol (RS422/485), and half-duplex 1/1 configuration, providing the essential conditions for direct substitution. The differences lie in its lower data rate (16Mbps vs. 20Mbps), a reduction of approximately 20%, and a higher receiver hysteresis voltage (100mV vs. 25mV). If the actual application’s communication rate requirement is below 16Mbps, this device can be used compatibly. Moreover, the increased hysteresis voltage improves noise margin and enhances stability in noisy environments. However, it may not meet requirements if the original system operates near the 20Mbps high-speed limit.
2. ADM3078EARZ Substitution Conclusion
The ADM3078EARZ shares essentially the same parameters as the ADM3078EYRZ-REEL7, also matching the original XR3078XID-F in package, voltage, protocol, and configuration. Its key deviations from the XR3078XID-F are likewise the data rate (16Mbps) and receiver hysteresis voltage (100mV). Therefore, the substitution feasibility conclusion remains consistent: it can directly replace the original in applications where the data rate does not exceed 16Mbps, and the higher hysteresis characteristic helps improve signal integrity. However, it is not a suitable direct replacement in scenarios requiring full 20Mbps transmission; system timing and bandwidth constraints must be evaluated in such cases.
Analysis ID: EA21-1ED8000
Based on part parameters and for reference only. Not to be used for procurement or production.
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