m24lr16e-r STMicroelectronics, m24lr16e-r Datasheet - Page 20

• Manufacturer Part Number: m24lr16e-r
• Description: 16 Kbit Eeprom With Password Protection, Dual Interface & Energy Harvesting 400 Khz I²c Bus & Iso 15693 Rf Protocol At 13.56 Mhz
• Manufacturer: STMicroelectronics

User memory organization
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Figure 6.
Sector details
The M24LR16E-R user memory is divided into 16 sectors. Each sector contains 1024 bits.
The protection scheme is described in
In RF mode, a sector provides 32 blocks of 32 bits. Each read and write access is done by
block. Read and write block accesses are controlled by a Sector Security Status byte that
defines the access rights to 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 I
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 I
command must have the E2 Chip Enable address at 0.
2
C mode, a sector provides 128 bytes that can be individually accessed in Read and
Sector
Memory sector organization
12
13
14
15
0
1
2
3
Doc ID 018932 Rev 7
16-bit I²C Write Lock_bit
1 Kbit EEPROM sector
1 Kbit EEPROM sector
1 Kbit EEPROM sector
1 Kbit EEPROM sector
1 Kbit EEPROM sector
1 Kbit EEPROM sector
1 Kbit EEPROM sector
1 Kbit EEPROM sector
8-bit configuration
RF password 1
RF password 2
RF password 3
Section 4: System memory
I²C password
8-bit DSFID
80-bit SSS
64-bit UID
8-bit AFI
Area
area.
Sector security
status
System
System
System
System
System
System
System
System
System
5 bits
5 bits
5 bits
5 bits
5 bits
5 bits
5 bits
5 bits
M24LR16E
MS19741V1
2
C