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M24LR04E-R Datasheet(PDF) 120 Page - STMicroelectronics

Part # M24LR04E-R
Description  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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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

M24LR04E-R Datasheet(HTML) 120 Page - STMicroelectronics

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Command codes
M24LR04E-R
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Doc ID 022208 Rev 5
When configured in the RF busy mode, the RF WIP/BUSY pin is tied to 0 from the SOF that
starts the SetRstEHEn command to the end of the M24LR04E-R response.
When configured in the RF write in progress mode, the RF WIP/BUSY pin remains in high-Z
state.
26.27
CheckEHEn
On receiving the CheckEHEn command, the M24LR04E-R reads the Control register and
sends back its 8-bit value in the response.
The Protocol_extension_flag should be set to 0 for the M24LR04E-R to operate correctly. If
the Protocol_extension_flag is at 1, the M24LR04E-R answers with an error code. The
Option_flag is not supported. The Inventory_flag must be set to 0.
Request parameters:
●
UID (optional)
Response parameters:
●
One byte of data: volatile Control register (see Table 15)
Figure 77.
SetRstEHEn frame exchange between VCD and M24LR04E-R
VCD
SOF
SetRstEHEn
request
EOF
M24LR04E-R
<-t1-> SOF
SetRstEHEn
response
EOF
WriteEHCfg sequence
when no error
M24LR04E-R
<-t1-> SOF
SetRstEHEn
response
EOF
WriteEHCfg sequence
when error
Table 114.
CheckEHEn request format
Request
SOF
Request_
flags
CheckEHEn
IC Mfg code
UID(1)
1.
Gray means that the field is optional.
CRC16
Request
EOF
8 bits
A3h
02h
64 bits
16 bits
Table 115.
CheckEHEn response format when Error_flag is NOT set
Response SOF
Response_flags
Data
CRC16
Response
EOF
8 bits
8 bits
16 bits



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