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ST25DV04K bảng dữ liệu(PDF) 78 Page - STMicroelectronics

tên linh kiện ST25DV04K
Giải thích chi tiết về linh kiện  Dynamic NFC/RFID tag IC with 4-Kbit, 16-Kbit or 64-Kbit EEPROM,and fast transfer mode capability
PDF  220 Pages
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nhà sản xuất  STMICROELECTRONICS [STMicroelectronics]
Trang chủ  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

ST25DV04K bảng dữ liệu(HTML) 78 Page - STMicroelectronics

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ST25DVxxx specific features
ST25DV04K ST25DV16K ST25DV64K
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DocID027603 Rev 4
There is no interaction between I2C and RF security sessions. Both are independent and
can run in parallel.
Figure 23. I2C security sessions management
5.6.3
User memory protection
On factory delivery, areas are not protected.
Each area can be individually protected in read and/or write access from RF and I2C.
Area 1 is always readable (from RF and I2C).
Furthermore, RF blocks 0 and 1 (I2C bytes 0000h to 00007h) can be independently write
locked.
User memory protection from RF access
In RF mode, each memory area of the ST25DVxxx can be individually protected by one out
of three available passwords (RF password 1, 2 or 3), and each area can also have
individual Read/Write access conditions.
For each area, an RFAiSS register is used to:
•
Select the RF password that unlock the RF user security session for this area
•
Select the protection against read and write operations for this area
(See Table 28: RFA1SS, Table 29: RFA2SS, Table 30: RFA3SS and Table 31: RFA4SS for
details about available read and write protections).



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