Figure 16.
VD6283TX circuit
2.12
NFC tag: ST25DV64KC
The
is NFC RFID tag that includes 64
‑
Kbit of electrically erasable programmable memory
(EEPROM) with two interfaces. The first one is an I²C serial link and can be operated from a DC power supply.
The second one is an RF link activated when it acts as a contactless memory powered by the received carrier
electromagnetic wave. In the I²C mode, the
user memories contain 8192 bytes, which could be
split into four flexible and protectable areas.
A GPO pin for interruption pin configurable on multiple RF events (field change, memory write, activity, Fast
Transfer end, user set/reset/pulse) is available.
Table 13.
ST25DV64KC details
Features
Description
Order code
ST25DV64KC-IE6S3
Package
8-SOIC
Operating voltage
1.8 V to 5.5 V
Figure 17.
ST25DV64KC circuit
As the
is a tag, it does not generate any power. It is activated with the power of a reader.
It is tuned to work at 13.56 Mhz. There is no channel.
The reader emits a 13.56 radio frequency.
The
is powered by this electromagnetic field and modulates it to exchange data.
UM3076
NFC tag: ST25DV64KC
UM3076
-
Rev 1
page 14/38