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M24LR04E-R 数据表(PDF) 83 Page - STMicroelectronics

部件名 M24LR04E-R
功能描述  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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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

M24LR04E-R 数据表(HTML) 83 Page - STMicroelectronics

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M24LR04E-R
Command codes
Doc ID 022208 Rev 5
83/142
26.3
Read Single Block
On receiving the Read Single Block command, the M24LR04E-R reads the requested block
and sends back its 32-bit value in the response. The Protocol_extension_flag should be set
to 0 for the M24LR04E-R to operate correctly.
Request parameters:
●
Request flags
●
UID (optional)
●
Block number
Response parameters:
●
Sector security status if Option_flag is set (see Table 42)
●
Four bytes of block data
Response parameter:
●
Error code as Error_flag is set
–
10h: the specified block is not available
–
15h: the specified block is read-protected
Table 40.
Read Single Block request format
Request
SOF
Request_
flags
Read Single
Block
UID(1)
1.
Gray means that the field is optional.
Block
number
CRC16
Request
EOF
8 bits
20h
64 bits
8 bits
16 bits
Table 41.
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 42.
Sector security status
b7
b6
b5
b4
b3
b2
b1
b0
Reserved for future
use. All at 0.
Password
control bits
Read / Write
protection bits
0: Current sector not locked
1: Current sector locked
Table 43.
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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