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M24LR64-R_1004 数据表(PDF) 18 Page - STMicroelectronics

部件名 M24LR64-R_1004
功能描述  64 Kbit EEPROM with password protection & dual interface: 400kHz I²C serial bus & ISO 18000-3 mode 1 RF protocol at 13.56MHz
PDF  126 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

M24LR64-R_1004 数据表(HTML) 18 Page - STMicroelectronics

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User memory organization
M24LR64-R
18/126
Doc ID 15170 Rev 9
Figure 7.
Memory sector organization
Sector details
The M24LR64-R user memory is divided into 64 sectors. Each sector contains 1024 bits.
The protection scheme is described in Section 4: System memory area.
In RF mode, a sector provides 32 blocks of 32 bits. Each read and write access are done by
block. Read and write block accesses are controlled by a Sector Security Status byte that
defines the access rights to all the 32 blocks contained in the sector. If the sector is not
protected, a Write command updates the complete 32 bits of the selected block.
In I2C mode, a sector provides 128 bytes that can be individually accessed in read and write
modes. When protected by the corresponding I2C_Write_Lock bit, the entire sector is write-
protected. To access the user memory, the device select code used for any I2C command
must have the E2 Chip Enable address at 0.
0
1 Kbit EEPROM sector
5 bits
1
1 Kbit EEPROM sector
5 bits
2
1 Kbit EEPROM sector
5 bits
3
1 Kbit EEPROM sector
5 bits
60
1 Kbit EEPROM sector
5 bits
61
1 Kbit EEPROM sector
5 bits
62
1 Kbit EEPROM sector
5 bits
63
1 Kbit EEPROM sector
5 bits
I2C Password
System
RF Password 1
System
RF Password 2
System
RF Password 3
System
8 bit DSFID
System
8 bit AFI
System
64 bit UID
System
Sector
Area
Sector security
status
ai15124



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