AWR1642: How can I tell a AWR1642 chip is HS device from the marks on the chip

Jerry,

The short is no, your device is not a HS device.

To determine if your device is a HS device or not from the package, you need to cross reference the AWR1642 Errata "Device Markings" section with the AWR1642 Datasheet "Device Nomenclature" section.

The datasheet can be found here: www.ti.com/.../awr1642.pdf
The errata can be found here: www.ti.com/.../swrz072a.pdf

HS devices are available for both AWR1642 and IWR1642 and have separate SDKs that can be found here: www.ti.com/.../MMWAVE-SDK.

Regards,
Kyle