M24LR64E-RDW6T/2 STMicroelectronics, M24LR64E-RDW6T/2 Datasheet - Page 104

• Manufacturer Part Number: M24LR64E-RDW6T/2
• Description: EEPROM 64Kbit EEProm 400kHz 13.56Mhz 1.8 to 5.5V
• Manufacturer: STMicroelectronics

Specifications of M24LR64E-RDW6T/2

• Rohs: yes
• Memory Size: 64 Kbit
• Organization: 8192 x 8
• Data Retention: 40 yr
• Maximum Clock Frequency: 400 kHz
• Maximum Operating Current: 20 uA
• Operating Supply Voltage: 1.8 V to 5.5 V
• Maximum Operating Temperature: + 90 C
• Mounting Style: SMD/SMT
• Package / Case: TSSOP-8
• Access Time: 900 ns
• Interface Type: I2C
• Minimum Operating Temperature: 0 C
• Operating Current: 20 uA
• Supply Voltage - Max: 5.5 V
• Supply Voltage - Min: 1.8 V

Command codes
26.16
104/140
When configured in the RF busy mode, the RF WIP/BUSY pin is tied to 0 from the SOF that
starts the Lock-sector command to the end of the M24LR64E-R response.
When configured in the RF write in progress mode, the RF WIP/BUSY pin is tied to 0 for the
duration of the internal write cycle (from the end of a valid Lock sector command to the
beginning of the M24LR64E-R response).
Present-sector Password
On receiving the Present-sector Password command, the M24LR64E-R compares the
requested password with the data contained in the request and reports whether the
operation has been successful in the response. The Option_flag is supported.
During the comparison cycle equal to W
10%), otherwise the M24LR64E-R Password value may not be correctly compared. The W
time is equal to t
After a successful command, the access to all the memory blocks linked to the password is
changed as described in
Table 84.
1. Gray color means that the field is optional.
Request parameter:
Table 85.
Response parameter:
Table 86.
Response
Request
Response
SOF
SOF
SOF
Request flags
UID (optional)
Password Number (0x01 = Pswd1, 0x02 = Pswd2, 0x03 = Pswd3, other = Error)
Password
No parameter. The response is sent back after the write cycle.
Request
_flags
8 bits
Present-sector Password request format
Present-sector Password response format when Error_flag is NOT set
Present-sector Password response format when Error_flag is set
Response_
Response_flags
1nom
flags
8 bits
Password
+ 18 × 302 µs.
8 bits
Present-
sector
B3h
Section 4.1: M24LR64E-R block security in RF
Doc ID 022712 Rev 3
Error code
8 bits
code
Mfg
02h
IC
t
64 bits
, there should be no modulation (neither 100% nor
UID
(1)
Password
number
8 bits
CRC16
16 bits
CRC16
16 bits
Password
32 bits
mode.
CRC16
16 bits
M24LR64E-R
Response
Response
EOF
Request
EOF
EOF
t