ATtiny1617/3217

6.7 Signature Bytes

All ATtiny microcontrollers have a 3-byte signature code that identifies the device. The three bytes reside in a separate address space. For the device, the signature bytes are given in the following table.

Note: When the device is locked, only the System Information Block (SIB) can be obtained.

Table 6-4. Device ID
Device Name	Signature Bytes Address
Device Name	0x00	0x01	0x02
ATtiny1617	0x1E	0x94	0x20
ATtiny3217	0x1E	0x95	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.