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SR176 Datasheet(PDF) 7 Page - STMicroelectronics

Part # SR176
Description  13.56 MHz, 176-bit short range contactless user EEPROM with 64-bit Unique ID
PDF  35 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

SR176 Datasheet(HTML) 7 Page - STMicroelectronics

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SR176
Signal description
7/35
The memory array of the SR176 is divided into two main areas: the unique identifier (UID)
and the User EEPROM. The UID is a 64-bit unique identifier, written by ST during product
manufacture. The User EEPROM is divided into areas which can be write-protected so that
they behave as ROM. The write protection is activated using an OTP lock bits register. It is
possible to program the SR176 4-bit chip_ID used by the SELECT command. Its default
value is fixed at the value 0 (0000b) by ST. When correctly set, up to sixteen SR176 devices
can be selected individually.
Figure 2.
Die floor plan
2
Signal description
2.0.1
AC1, AC0
AC1 and AC0 pads must be directly bonded to the antenna.
AI09782
AC1
AC0



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