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M24LR64E-R 数据表(PDF) 96 Page - STMicroelectronics

部件名 M24LR64E-R
功能描述  64-Kbit EEPROM with password protection, dual interface & energy harvesting: 400 kHz I²C bus & ISO 15693 RF protocol at 13.56 MHz
PDF  140 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

M24LR64E-R 数据表(HTML) 96 Page - STMicroelectronics

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Command codes
M24LR64E-R
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Doc ID 022712 Rev 3
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).
26.11
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 Wt, there should be no modulation (neither 100% nor 10%),
otherwise the M24LR64E-R may not lock correctly the DSFID value in memory. The Wt time
is equal to t1nom + 18 × 302 µs.
Request parameter:
●
Request flags
●
UID (optional)
Figure 63.
Write DSFID frame exchange between VCD and M24LR64E-R
VCD
SOF
Write DSFID
request
EO
F
M24LR64E-R
<-t1->
SO
F
Write DSFID
response
EO
F
Write sequence
when error
M24LR64E-R
<---------------- Wt ------------
>
SO
F
Write DSFID
response
EOF
Table 66.
Lock DSFID request format
Request
SOF
Request_
flags
Lock
DSFID
UID(1)
1.
Gray color means that the field is optional.
CRC16
Request
EOF
8 bits
2Ah
64 bits
16 bits
Table 67.
Lock DSFID response format when Error_flag is NOT set
Response
SOF
Response_flags
CRC16
Response
EOF
8 bits
16 bits



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