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M24LR04E-R Datasheet(PDF) 87 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) 87 Page - STMicroelectronics

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M24LR04E-R
Command codes
Doc ID 022208 Rev 5
87/142
When configuring in the RF Write in progress mode, the RF WIP/BUSY pin is tied to 0
during the Write & verify sequence, as shown in Figure 57.
Figure 57.
M24LR04E RF-Wip management following Write command
MS19769V2
S
O
F
Write
command
E
O
F
S
O
F
Ireply
M24LR04E
E
O
F
1) M24LR04E replies. RF_Wip is released after M24LR04E response.
RF_Wip
S
O
F
Write
command
E
O
F
E
O
F
2) M24LR04E replies when option flag is set. RF_Wip is released after M24LR04E
response.
RF_Wip
Wt
Wt
t1
S
O
F
Ireply
M24LR04E
E
O
F
3) VCD sends a forbidden Write (sector lock, password-protected). RF_Wip remains
at a high impedance.
S
O
F
Write
command
E
O
F
S
O
F
Ireply
M24LR04E
E
O
F
t1
RF_Wip



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