ST25DV04K datasheet(91/220 Pages) STMICROELECTRONICS

Part #	ST25DV04K

Description	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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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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91 / 220 page

DocID027603 Rev 4

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ST25DV04K ST25DV16K ST25DV64K

I2C operation

219

Byte write is inhibited if byte complies with conditions described in Section 6.4.1: I2C Byte

write, in addition:

•

Byte is in user memory but does not belong to same area than previous received byte

(area border crossing is forbidden).

•

256 write occurrence have already been reached in the same sequential write.

EEPROM memory (user memory and system configuration) is internally organized in pages

of 4 bytes long. Data located in a same page all share the same most significant memory

address bits b16-b2.

I2C sequential write programming time in the EEPROM memory is dependent on this

internal organization: total programming time is the I2C write time tW (as defined in

Table 209: I2C AC characteristics up to 85°C and Table 210: I2C AC characteristics up to

125°C) multiplied by the number of internal EEPROM pages where the data must be

programmed, including incomplete pages. For example, a 256 Bytes I2C sequential write,

starting at address 0002h will write data over 65 pages. Total write time in this case is

tW x 65.

Figure 26. Write mode sequences when write is not inhibited

Note:

N ≤ 256

ST25DV04K Datasheet(PDF) 91 Page - STMicroelectronics