SRI4K-SBN181GE STMICROELECTRONICS [STMicroelectronics], SRI4K-SBN181GE Datasheet - Page 36
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SRI4K-SBN181GE
Manufacturer Part Number
SRI4K-SBN181GE
Description
13.56 MHz short-range contactless memory chip with 4096-bit EEPROM and anticollision functions
Manufacturer
STMICROELECTRONICS [STMicroelectronics]
Datasheet
1.SRI4K-SBN181GE.pdf
(45 pages)
- Current page: 36 of 45
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SRI4K commands
8.10
36/45
Unique identifier (UID)
Members of the SRI4K family are uniquely identified by a 64-bit unique identifier (UID). This
is used for addressing each SRI4K 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. 64-bit unique identifier of the SRI4K
Figure 50. Get_UID frame exchange between reader and SRI4K
Power-on state
After power-on, the SRI4K is in the following state:
●
●
●
●
SRI4K
Reader
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 0111b = 7d for SRI4K
a 42-bit unique serial number
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().
S
O
F
0Bh
CRC L CRC H
Figure
63
Most significant bits
D0h
49):
E
O
F
55
<-t 0 -><-t 1 ->
02h
47
7d
S
O
F
41
UID
0
UID
1
Unique Serial Number
UID
2
UID
Least significant bits
3
UID
4
UID
5
AI14081
UID
0
6
UID
7
CRC L CRC H
AI10892b
SRI4K
E
O
F
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