Original Part
Alternative Part
1. ADM487EWARZ Substitution Conclusion
The ADM487EWARZ can functionally replace the ISL32472EIBZ-T. Both are 5V-powered, half-duplex, 250kbps RS-422/485 transceivers with pin-to-pin compatibility. The key differences lie in the receiver hysteresis (70mV vs. 25mV) and the supply voltage range (4.75V–5.25V vs. 4.5V–5.5V). The higher hysteresis of the ADM487EWARZ provides superior noise immunity in electrically noisy industrial environments, though it theoretically results in a slight reduction in receiver sensitivity to weak differential signals. The tighter supply voltage range demands a slightly more precise system power supply but remains well within the standard tolerance of a 5V system. Furthermore, the ADM487EWARZ is qualified to Automotive grade, typically offering higher reliability than industrial-grade devices. For most applications where the supply voltage meets the specification and the application does not involve extremely weak signals, a direct substitution is feasible and may yield improved noise immunity.
2. ADM487EWARZ-REEL7 Substitution Conclusion
The ADM487EWARZ-REEL7 is the same die as the ADM487EWARZ but supplied in reel packaging for automated assembly. All its electrical parameters, performance characteristics, and the substitution conclusion are identical. It likewise serves as a functional replacement for the ISL32472EIBZ-T, offering the same advantages of strong noise immunity from its high hysteresis (70mV), Automotive-grade reliability, and the same slightly narrower supply voltage range requirement (4.75V–5.25V). Selecting this model only indicates the use of reel packaging for automated pick-and-place; there is no difference in terms of electrical substitution feasibility.
Analysis ID: FA5F-B8EC000
Based on part parameters and for reference only. Not to be used for procurement or production.
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