M24LR64-R-DW6T/2 STMICROELECTRONICS [STMicroelectronics], M24LR64-R-DW6T/2 Datasheet - Page 55

• Manufacturer Part Number: M24LR64-R-DW6T/2
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

M24LR64-R
14
Application family identifier (AFI)
The AFI (application family identifier) represents the type of application targeted by the VCD
and is used to identify, among all the M24LR64-Rs present, only the M24LR64-Rs that meet
the required application criteria.
Figure 47. M24LR64-R decision tree for AFI
The AFI is programmed by the M24LR64-R issuer (or purchaser) in the AFI register. Once
programmed and Locked, it can no longer be modified.
The most significant nibble of the AFI is used to code one specific or all application families.
The least significant nibble of the AFI is used to code one specific or all application
subfamilies. Subfamily codes different from 0 are proprietary.
(See ISO 15693-3 documentation)
Answer given by the M24RF64
No
to the Inventory request
Doc ID 15170 Rev 8
Inventory request
AFI value
received
AFI flag
= 0 ?
set ?
Yes
Yes
No
AFI value
= Internal
value ?
Yes
Application family identifier (AFI)
No answer
No
AI15130
55/126