ST25DV64K datasheet(11/200 Pages) STMICROELECTRONICS

Teilenummer	ST25DV64K

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

PDF	200 Pages

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Hersteller	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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Figure 7. 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 ST25DVxxx 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 be set with

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 2 shows how memory is seen from RF interface and from I2C interface.

ST25DV04K ST25DV16K ST25DV64K

User memory

DS10925 - Rev 9

page 11/200

ST25DV64K Datenblatt(PDF) 11 Page - STMicroelectronics