m24lr16e-r STMicroelectronics, m24lr16e-r Datasheet - Page 43
m24lr16e-r
Manufacturer Part Number
m24lr16e-r
Description
16 Kbit Eeprom With Password Protection, Dual Interface & Energy Harvesting 400 Khz I²c Bus & Iso 15693 Rf Protocol At 13.56 Mhz
Manufacturer
STMicroelectronics
Datasheet
1.M24LR16E-R.pdf
(143 pages)
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M24LR16E
7
7.1
RF device operation
The M24LR16E-R is divided into 16 sectors of 32 blocks of 32 bits, as shown in
Each sector can be individually read- and/or write-protected using a specific lock or
password command.
Read and Write operations are possible if the addressed block is not protected. During a
Write, the 32 bits of the block are replaced by the new 32-bit value.
The M24LR16E-R also has a 64-bit block that is used to store the 64-bit unique identifier
(UID). The UID is compliant with the ISO 15963 description, and its value is used during the
anticollision sequence (Inventory). This block is not accessible by the user and its value is
written by ST on the production line.
The M24LR16E-R also includes an AFI register in which the application family identifier is
stored, and a DSFID register in which the data storage family identifier used in the
anticollision algorithm is stored.
The M24LR16E-R has three 32-bit blocks in which the password codes are stored and a 8-
bit Configuration byte in which the Energy harvesting mode and RF WIP/BUSY pin
configuration is stored.
RF communication and energy harvesting
Because current consumption can affect the AC signal delivered by the antenna, RF
communications with M24LR16E-R are not guaranteed during voltage delivery on the
energy harvesting analog output Vout.
Doc ID 018932 Rev 7
RF device operation
Table
43/143
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