SRI4K-SBN181GE STMICROELECTRONICS [STMicroelectronics], SRI4K-SBN181GE Datasheet - Page 14
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)
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Memory mapping
4
14/45
Memory mapping
The SRI4K is organized as 128 blocks of 32 bits as shown in
accessible by the Read_block command. Depending on the write access, they can be
updated by the Write_block command. A Write_block updates all the 32 bits of the block.
Table 3.
Block
Addr
UID0
UID1
127
255
10
11
12
13
14
15
16
...
0
1
2
3
4
5
6
7
8
9
MSB
b
OTP_Lock_Reg
SRI4K memory mapping
31
b
24
b
23
32 bits binary counter
32 bits binary counter
32 bits Boolean area
32 bits Boolean area
32 bits Boolean area
32 bits Boolean area
32 bits Boolean area
64 bits UID area
32-bit block
ST Reserved
User area
User area
User area
User area
User area
User area
User area
User area
User area
User area
User area
User area
b
16
b
15
b
8
b
Fixed Chip_ID
7
(Option)
Table
LSB
3. All blocks are
b
0
Resettable OTP
System OTP
Description
Count down
EEPROM
EEPROM
Lockable
counter
ROM
bits
bits
SRI4K
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