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ST25DV04K Datasheet(PDF) 48 Page - 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
Logo STMICROELECTRONICS - STMicroelectronics

ST25DV04K Datasheet(HTML) 48 Page - STMicroelectronics

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ST25DVxxx specific features
ST25DV04K ST25DV16K ST25DV64K
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DocID027603 Rev 4
Figure 15. FIELD_CHANGE chronogram
RF_PUT_MSG:
•
A pulse is emitted on GPO when a message is successfully written by RF in fast
transfer mode mailbox.
•
When RF_PUT_MSG is activated, a pulse of duration IT_TIME is emitted on GPO at
completion of valid Write Message or Fast Write Message commands (after EOF of
ST25DV response).
Table 15. FIELD_CHANGE when RF is disabled or in sleep mode
RF_DISABLE
RF_SLEEP
GPO behavior when FIELD_DETECT is enabled
00
A pulse is emitted on GPO if RF field appears or disappears(1)
1. assuming that GPO output is enabled (GPO_EN = 1).
10
X1
GPO remains High-Z (OD) or tied low (CMOS)
IT_STS_Dyn register is not updated.
X1



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