8.7 SIGROW - Signature Row

The content of the Signature Row (SIGROW) fuses is preprogrammed and read-only. SIGROW contains information as device ID, serial number, and calibration values.

All the AVR64DU32/28 devices have a device ID to identify family, Flash size, and pin count. The device ID consists of three DEVICEIDn bytes, as shown in the following table.

Table 8-4. Device ID
Device Name	Signature Byte Address and Value
Device Name	0x00	0x01	0x02
AVR64DU32	`0x1E`	`0x96`	`0x21`
AVR64DU28	`0x1E`	`0x96`	`0x22`

The online versions of the documents are provided as a courtesy. Verify all content and data in the device’s PDF documentation found on the device product page.