ST25DV04KC datasheet(12/203 Pages) STMICROELECTRONICS

Part #	ST25DV04KC

Description	Dynamic NFC/RFID tag IC with 4-Kbit, 16-Kbit or 64-Kbit EEPROM, fast transfer mode capability and optimized I2C

PDF	203 Pages

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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Figure 9. Memory organization

Area 1

Area 2

Area 3

Area 4

CC File

Dynamic registers

Fast Transfer Mode

256 Bytes buffer

Static configuration registers

Device information

UID, AFI, DSFID

Passwords

Always readable

User memory

(EEPROM up to 64-Kbits)

Password protected

System configuration

(EEPROM)

Password protected

Dynamic configuration

and activity status

Fast Transfer Mode mailbox

4.2

User memory

User memory is accessible from both RF contactless interface and I2C wired interface.

From RF interface, user memory is addressed as Blocks of 4 bytes, starting at address 0. RF extended read and

write commands can be used to address all ST25DVxxKC memory blocks. Other read and write commands can

only address up to block FFh.

From I2C interface, user memory is addressed as Bytes, starting at address 0. Device select must set E2 = 0.

User memory can be read in continuity. Unlike the RF interface, there is no roll-over when the requested address

reaches the end of the memory capacity.

Table 4. User memory as seen by RF and by I2C shows how memory is seen from RF interface and from I2C

interface.

ST25DV04KC ST25DV16KC ST25DV64KC

User memory

DS13519 - Rev 3

page 12/203

ST25DV04KC Datasheet(PDF) 12 Page - STMicroelectronics