M24LR64E-RDW6T/2 STMicroelectronics, M24LR64E-RDW6T/2 Datasheet - Page 96

• 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
26.11
96/140
Figure 63. Write DSFID frame exchange between VCD and M24LR64E-R
When configured in the RF busy mode, the RF WIP/BUSY pin is tied to 0 from the SOF that
starts the Write DSFID 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 Write DSFID command to the
beginning of the M24LR64E-R response).
Lock DSFID
On receiving the Lock DSFID request, the M24LR64E-R locks the DSFID value
permanently. The Option_flag is supported.
During the RF write cycle W
otherwise the M24LR64E-R may not lock correctly the DSFID value in memory. The W
is equal to t
Table 66.
1. Gray color means that the field is optional.
Request parameter:
Table 67.
Request
Response
M24LR64E-R
M24LR64E-R
SOF
SOF
Request flags
UID (optional)
VCD
Request_
1nom
8 bits
Lock DSFID request format
flags
Lock DSFID response format when Error_flag is NOT set
Response_flags
+ 18 × 302 µs.
SOF
8 bits
DSFID
Lock
2Ah
Write DSFID
request
t
, there should be no modulation (neither 100% nor 10%),
Doc ID 022712 Rev 3
EO
F
<-t
<---------------- W
64 bits
1
UID
->
(1)
SO
F
>
Write DSFID
CRC16
16 bits
response
t
------------
EO
SO
F
F
CRC16
16 bits
Write DSFID
response
Write sequence
when error
M24LR64E-R
Response
Request
EOF
EOF
EOF
t
time