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ST25DV04K Datasheet(PDF) 3 Page - STMicroelectronics |
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ST25DV04K Datasheet(HTML) 3 Page - STMicroelectronics |
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3 / 200 page ![]() 1 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 powered by the received carrier electromagnetic wave. 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 (ST25DV04K, ST25DV16K and ST25DV64K) are mentioned as ST25DVxxx. 1.1 ST25DVxxx block diagram Figure 1. ST25DVxxx block diagram LPD1 AC0 AC1 V_EH VDCG1 GPO Vcc SDA SCL Vss 1.8V VOLTAGE REGULATOR RF INTERFACE 28.5pF tuning capacitance Up to 64Kbits User memory 256 Bytes BUFFER ISO/IEC 15693 PROTOCOL AND CONTROL MEMORY CONTROL DIGITAL UNIT CONTROL ENERGY HARVESTING CONTROL FAST TRANSFER CONTROL ANALOG FRONT END ENERGY HARVESTING I2C INTERFACE I2C CONTROL EEPROM System registers Dynamic registers 1. VDCG and LPD are included in 10 balls and 12 pins package only. ST25DV04K ST25DV16K ST25DV64K Description DS10925 - Rev 9 page 3/200 |
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