ST25DV64KC

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製品概要

概要

The ST25DV04KC, ST25DV16KC and ST25DV64KC devices are NFC RFID tags offering respectively 4‑Kbit, 16‑Kbit, and 64‑Kbit of electrically erasable programmable memory (EEPROM). ST25DV04KC, ST25DV16KC and ST25DV64KC 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 ST25DV04KC, ST25DV16KC and ST25DV64KC act as a contactless memory powered by the received carrier electromagnetic wave.

In I²C mode, the ST25DV04KC, ST25DV16KC and ST25DV64KC 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, ST25DV04KC, ST25DV16KC and ST25DV64KC 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.

ST25DV04KC, ST25DV16KC and ST25DV64KC 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 ST25DV04KC, ST25DV16KC and ST25DV64KC 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 (ST25DV04KC, ST25DV16KC and ST25DV64KC) are mentioned as ST25DVxxKC.

特徴
I²C interface

Two-wire I²C serial interface supports 1MHz protocol

Single supply voltage: 1.8 V to 5.5 V

Multiple byte write programming (up to 256 bytes)

Configurable I²C slave address

Contactless interface

Based on ISO/IEC 15693

NFC Forum Type 5 tag certified by the NFC Forum

Supports all ISO/IEC 15693 modulations, coding, sub-carrier modes and data rates

Custom fast read access up to 53 kbit/s

Single and multiple blocks read (same for Extended commands)

Single and multiple blocks write (up to four) (same for Extended commands)

Internal tuning capacitance: 28.5 pF

Memory

Up to 64-Kbit of EEPROM (depending on version)

I²C interface accesses bytes

RF interface accesses blocks of 4 bytes

Write time:
From I²C: typical 5 ms for 1 up to 16 bytes
From RF: typical 5 ms for 1 block

Data retention: 40 years

Write cycles endurance:
1 million write cycles at 25 °C
600k write cycles at 85 °C
500k write cycles at 105 °C
400k write cycles at 125 °C

Fast transfer mode

Fast data transfer between I²C and RF interfaces

Half-duplex 256 bytes dedicated buffer

Energy harvesting

Analog output pin to power external components

Data protection

User memory: one to four configurable areas, protectable in read and/or write by three 64-bit passwords in RF and one 64‑bit password in I²C

System configuration: protected in write by a 64-bit password in RF and a 64-bit password in I²C

GPO

Interruption pin configurable on multiple RF events (field change, memory write, activity, Fast Transfer end, user set/reset/pulse), and I²C events (memory write completed, RF switch off)

Open Drain or CMOS output (depending on version)

RF management

RF command interpreter enabled/disabled from I²C host controller

I²C priority: immediate RF switch off from I²C

Temperature range

Range 6:
From -40 °C to 85 °C

Range 8:
From -40 °C to 85 °C (UDFPN8 and UFDFPN12 only)
From -40 °C to 125 °C (SO8N and TSSOP8 only, 105 °C max on RF interface)

パッケージ

8-pin and 12-pin packages

ECOPACK2 (RoHS compliant)
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