ST25DV04K datasheet(17/220 Pages) STMICROELECTRONICS

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DocID027603 Rev 4

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ST25DV04K ST25DV16K ST25DV64K

Description

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Description

The ST25DV04K, ST25DV16K and ST25DV64K devices are NFC RFID tags offering

respectively 4 Kbit, 16 Kbit, and 64 Kbit of electrically erasable programmable memory

(EEPROM). ST25DV04K, ST25DV16K and ST25DV64K offer two interfaces. The first one

is an I2C serial link and can be operated from a DC power supply. The second one is a RF

link activated when ST25DV04K, ST25DV16K or ST25DV64K act as a contactless memory

In I2C mode, the ST25DV04K, ST25DV16K and ST25DV64K user memory contains up to

512 bytes, 2048 bytes and 8192 bytes, which could be split in 4 flexible and protectable

areas.

In RF mode, following ISO/IEC 15693 or NFC forum type 5 recommendations, ST25DV04K,

ST25DV16K and ST25DV64K user memory contains respectively up to 128 blocks, 512

blocks and 2048 blocks of 4 bytes which could be split in 4 flexible and protectable areas.

ST25DV04K, ST25DV16K and ST25DV64K offer a fast transfer mode between the RF and

contact worlds, thanks to a 256 bytes volatile buffer (also called Mailbox). In addition, the

GPO pin of the ST25DV04K, ST25DV16K and ST25DV64K provide data informing the

contact world about incoming events, like RF field detection, RF activity in progress or

mailbox message availability. An energy harvesting feature is also proposed when external

conditions make it possible.

Herein after all concerned devices that are ST25DV04K, ST25DV16K and ST25DV64K are

mentioned to as ST25DVxxx.

1.1

ST25DVxxx block diagram

Figure 1. ST25DVxxx block diagram

1. VDCG and LPD are included in 12 pins package only

ST25DV04K Datasheet(PDF) 17 Page - STMicroelectronics