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M24LR64-R 数据表(PDF) 85 Page - STMicroelectronics

部件名 M24LR64-R
功能描述  64 Kbit EEPROM with password protection & dual interface: 400 kHz I²C serial bus & ISO 15693 RF protocol at 13.56 MHz
PDF  128 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

M24LR64-R 数据表(HTML) 85 Page - STMicroelectronics

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M24LR64-R
Commands codes
Doc ID 15170 Rev 14
85/128
26.8
Write AFI
On receiving the Write AFI request, the M24LR64-R programs the 8-bit AFI value to its
memory. The Option_flag is supported.
During the RF write cycle Wt, there should be no modulation (neither 100% nor 10%).
Otherwise, the M24LR64-R may not write correctly the AFI value into the memory. The Wt
time is equal to t1nom + 18 × 302 µs.
Request parameter:
●
UID (optional)
●
AFI
Response parameter:
●
No parameter.
Response parameter:
●
Error code as Error_flag is set
–
03h: the option is not supported
–
0Fh: error with no information given
–
12h: the specified block is locked and its contents cannot be changed.
–
13h: the specified block was not successfully programmed
Table 54.
Write AFI request format
Request
SOF
Request
_flags
Write
AFI
UID(1)
1.
Gray means that the field is optional.
AFI
CRC16
Request
EOF
8 bits
27h
64 bits
8 bits
16 bits
Table 55.
Write AFI response format when Error_flag is NOT set
Response
SOF
Response_flags
CRC16
Response
EOF
8 bits
16 bits
Table 56.
Write AFI response format when Error_flag is set
Response
SOF
Response_
flags
Error code
CRC16
Response
EOF
8 bits
8 bits
16 bits



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