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TCAL9539: PTCAL9538RTWR & TCAL9539RTWR Device marking 确认

Part Number: TCAL9539
Other Parts Discussed in Thread: TCAL9538

以下为规格书截图

Orderable Device 里面的Device marking是 TCAL9539, 包装信息里面的Device是PTCAL9538RTWR,  后面的是9538 是信息错误,还是有什么其他的说法?