6.7 Signature Bytes

All tinyAVR® 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 accessed.
Table 6-4. Device ID
Device Name Signature Bytes Address
0x00 0x01 0x02
ATtiny417 0x1E 0x92 0x20
ATtiny814 0x1E 0x93 0x22
ATtiny816 0x1E 0x93 0x21
ATtiny817 0x1E 0x93 0x20