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M24LR04E-R 데이터시트(PDF) 107 Page - STMicroelectronics

부품명 M24LR04E-R
상세설명  4-Kbit EEPROM with password protection, dual interface & energy harvesting: 400 kHz I²C bus & ISO 15693 RF protocol at 13.56 MHz
PDF  142 Pages
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제조업체  STMICROELECTRONICS [STMicroelectronics]
홈페이지  http://www.st.com
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M24LR04E-R 데이터시트(HTML) 107 Page - STMicroelectronics

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M24LR04E-R
Command codes
Doc ID 022208 Rev 5
107/142
26.17
Fast Read Single Block
On receiving the Fast Read Single Block command, the M24LR04E-R reads the requested
block and sends back its 32-bit value in the response. The Option_flag is supported. The
data rate of the response is multiplied by 2.
The Protocol_extension_flag should be set to 0 for the M24LR04E-R to operate correctly.
The subcarrier_flag should be set to 0, otherwise the M24LR04E-R answers with an error
code.
Request parameters:
●
Request flags
●
UID (optional)
●
Block number
Response parameters:
●
Sector security status if Option_flag is set (see Table 88)
●
Four bytes of block data
Table 86.
Fast Read Single Block request format
Request
SOF
Request_
flags
Fast Read
Single
Block
IC Mfg
code
UID(1)
1.
Gray means that the field is optional.
Block
number
CRC16
Request
EOF
8 bits
C0h
02h
64 bits
8 bits
16 bits
Table 87.
Fast Read Single Block response format when Error_flag is NOT set
Response
SOF
Response
_flags
Sector
security
status(1)
1.
Gray means that the field is optional.
Data
CRC16
Response
EOF
8 bits
8 bits
32 bits
16 bits
Table 88.
Sector security status
b7
b6
b5
b4
b3
b2
b1
b0
Reserved for future used. All
at 0.
Password control
bits
Read / Write
protection bits
0: Current sector not locked
1: Current sector locked
Table 89.
Fast Read Single Block 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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