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SRI512 bảng dữ liệu(PDF) 38 Page - STMicroelectronics

tên linh kiện SRI512
Giải thích chi tiết về linh kiện  13.56 MHz short-range contactless memory chip with 512-bit EEPROM and anticollision functions
PDF  47 Pages
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nhà sản xuất  STMICROELECTRONICS [STMicroelectronics]
Trang chủ  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

SRI512 bảng dữ liệu(HTML) 38 Page - STMicroelectronics

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SRI512 commands
SRI512
38/47
Unique Identifier (UID)
Members of the SRI512 family are uniquely identified by a 64-bit Unique Identifier (UID).
This is used for addressing each SRI512 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 49):
●
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 0110b = 6d for SRI512
●
a 42-bit unique serial number
Figure 49.
64-bit unique identifier of the SRI512
Figure 50.
Get_UID frame exchange between reader and SRI512
8.10
Power-on state
After power-on, the SRI512 is in the following state:
●
It is in the low-power state.
●
It is in Ready state.
●
It shows highest impedance with respect to the reader antenna field.
●
It will not respond to any command except Initiate().
AI12375
D0h
Unique Serial Number
02h
63
55
47
0
Most significant bits
Least significant bits
41
6d
S
O
F
CRCL CRCH
E
O
F
AI10950
Reader
SRI512
<-t0-> <-t1->
S
O
F
CRCL CRCH
E
O
F
0Bh
UID
1
UID
2
UID
3
UID
4
UID
0
UID
5
UID
6
UID
7



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