SRI512-W4/1GE STMicroelectronics, SRI512-W4/1GE Datasheet - Page 18

• Manufacturer Part Number: SRI512-W4/1GE
• Description: IC MEM 13.56MHZ 512BIT EEPROM
• Manufacturer: STMicroelectronics
• Series: SRI512r

Specifications of SRI512-W4/1GE

• Rf Type: Read / Write
• Frequency: 13.56MHz
• Features: ISO14443-B
• Package / Case: Wafer
• Operating Temperature (max): 85C
• Operating Temperature Classification: Commercial
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Memory mapping
4.3
18/47
EEPROM area
The 9 blocks between addresses 7 and 15 are EEPROM blocks of 32 bits each (36 bytes in
total). (See
Read_block and Write_block commands. The Write_block command for the EEPROM area
always includes an auto-erase cycle prior to the write cycle.
Blocks 7 to 15 can be write-protected. Write access is controlled by the 9 bits of the
OTP_Lock_Reg located at block address 255 (see
details). Once protected, these blocks (7 to 15) cannot be unprotected
Figure 17. EEPROM (addresses 7 to 15)
Block
address
10
11
12
13
14
15
7
8
9
Figure 17
b31
MSb
for a map of the area.) These blocks can be accessed using the
Doc ID 13263 Rev 5
b16 b15 b14
32-bit block
User area
User area
User area
User area
User area
User area
User area
User area
User area
Section 4.4.1: OTP_Lock_Reg
b8 b7
LSb
b0
Description
Lockable
EEPROM
for
SRI512
Ai12383b