M24LR64-RMB6T/2 STMicroelectronics, M24LR64-RMB6T/2 Datasheet - Page 62

• Manufacturer Part Number: M24LR64-RMB6T/2
• Description: 13.56MHZ 64KBIT EEPROM UFDFPN8
• Manufacturer: STMicroelectronics

Specifications of M24LR64-RMB6T/2

• Featured Product: STM32 Cortex-M3 Companion Products
• Rf Type: Read / Write
• Frequency: 13.56MHz
• Features: 64 Kbit EEPROM
• Package / Case: 8-MLP, 8-UFDFPN
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 497-10485-2; M24LR64-RMR6T/2; M24LW64-RMB6T/2

Modes
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18.1
18.2
18.3
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Modes
The term “mode” refers to the mechanism used in a request to specify the set of M24LR64-
Rs that will answer the request.
Addressed mode
When the Address_flag is set to 1 (Addressed mode), the request contains the Unique ID
(UID) of the addressed M24LR64-R.
Any M24LR64-R that receives a request with the Address_flag set to 1 compares the
received Unique ID to its own. If it matches, then the M24LR64-R executes the request (if
possible) and returns a response to the VCD as specified in the command description.
If the UID does not match, then it remains silent.
Non-addressed mode (general request)
When the Address_flag is cleared to 0 (Non-Addressed mode), the request does not contain
a Unique ID. Any M24LR64-R receiving a request with the Address_flag cleared to 0
executes it and returns a response to the VCD as specified in the command description.
Select mode
When the Select_flag is set to 1 (Select mode), the request does not contain an M24LR64-
R Unique ID. The M24LR64-R in the Selected state that receives a request with the
Select_flag set to 1 executes it and returns a response to the VCD as specified in the
command description.
Only M24LR64-Rs in the Selected state answer a request where the Select_flag set to 1.
The system design ensures in theory that only one M24LR64-R can be in the Select state at
a time.
Doc ID 15170 Rev 12
M24LR64-R