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SI88321EC-AS is listed in the Digital Isolators range at ChipApex. The manufacturer field lists Skyworks Solutions Inc.. Its product description is DGTL ISOLTR 5KV 2CH GP 20-SOIC. Review the specifications below when checking this part for your BOM.
The SI88321EC-AS is a digital isolator from Skyworks Solutions Inc. featuring two channels with unidirectional signal transmission. It operates within a supply voltage range of 3 V to 5.5 V and supports data rates up to 100 Mb/s. The device provides an insulation voltage of 5000 Vrms and utilizes capacitive coupling for isolation. Key electrical parameters include a propagation delay of 18 ns, a common-mode transient immunity of 40 kV/µs, and a maximum rise/fall time of 2.5 ns. It is housed in a 20-SOIC package.
Verify the specific suffix 'AS' against official Skyworks documentation to confirm pinout and package dimensions. Ensure compatibility with system voltage requirements and thermal management needs. Cross-reference the datasheet for any recent product change notices or reliability updates before finalizing procurement decisions.
Select this component when high isolation voltage (5000 Vrms) and integrated power conversion are required in a compact SOIC package. Consider the 100 Mb/s data rate and low propagation delay for high-speed digital interfaces. Evaluate the unidirectional channel configuration against system signal flow requirements.
This part belongs to the Si88321 series of CMOS digital isolators. It combines isolated signal paths with an integrated DC-DC converter, reducing external component count. The series is designed for applications demanding high reliability and noise immunity in electrically noisy environments.
Public confirmed substitute part numbers: SI88321EC-IS.
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