ST25DV64K datasheet(11/197 Pages) STMICROELECTRONICS

부품명	ST25DV64K

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

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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

This memory is accessible from both RF contactless and I2C wired interfaces.

From RF interface, the 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 memory blocks. Other read and write commands can address

only 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.

The 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 and I2C interfaces.

ST25DV04K ST25DV16K ST25DV64K

User memory

DS10925 - Rev 11

page 11/197

ST25DV64K 데이터시트(PDF) 11 Page - STMicroelectronics