SR176_07 Datasheet, PDF (19/35 Pages) STMicroelectronics – 13.56 MHz, 176-bit short range contactless user EEPROM with 64-bit Unique ID

SR176
Device operations (instructions)
Figure 26. READ_BLOCK frame exchange between Reader and SR176
Reader _{SOF 08h ADDR CRCL CRCH EOF}
SR176
t0
t1 _SOF DATAL DATAH CRCL CRCH _EOF
AI07707B
Figure 27. 64-bit UID storage format
b63
b0
b15 UID3 b0 b15 UID2 b0 b15 UID1 b0 b15 UID0 b0
AI07708B
Unique Identifier (UID)
Members of the SR176 family are uniquely identified by a 64-bit Unique Identifier (UID). This
is used for addressing each SR176 device uniquely after the anticollision loop. The UID
complies with ISO/IEC 15963 and ISO/IEC 7816-6. It is a read-only code, and comprises
(as summarized in Figure 28):
● an 8-bit prefix, with the most significant bits set to D0h
● an 8-bit IC Manufacturer code (ISO/IEC 7816-6/AM1) set to 02h (for
STMicroelectronics)
● a 6-bit IC code set to 00 0010b = 2d for SR176
● a 42-bit Unique Serial Number
Figure 28. 64-bit unique identifier of the SR176
Most significant bits
63 55 47 41
D0h 02h 2d
Least significant bits
0
Unique Serial Number
AI14078
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