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UCD9090A: UCD9090/UCD9090A Part Marking Question

Part Number: UCD9090A
Other Parts Discussed in Thread: UCD9090

We received a number of UCD9090A parts from a questionable parts broker.  They appear to actually be UCD9090 parts, but we have seen a high fall out rate - about 5%.  Errors include misreading addresses and misreading voltages, etc.  Can you provide detailed information on the UCD9090 and UCD9090A part marking so that we can determine if the parts we received are either remarked/relabelled or counterfeit?  See image below.  Does that look like a legitimate part marking?  Ignore the blue dot.  We'd appreciate as much info about decoding the markings as possible.  Thanks!