M24LR04E-RDW6T/2 STMicroelectronics, M24LR04E-RDW6T/2 Datasheet - Page 73

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M24LR04E-RDW6T/2

Manufacturer Part Number
M24LR04E-RDW6T/2
Description
EEPROM 4-Kbit Dual EEPROM 1.8 to 5.5V 13.56Mhz
Manufacturer
STMicroelectronics
Datasheet

Specifications of M24LR04E-RDW6T/2

Product Category
EEPROM
Memory Size
4 Kbit
Maximum Clock Frequency
400 KHz
Maximum Operating Current
20 uA
Operating Supply Voltage
1.8 V to 5.5 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Package / Case
TSSOP-8
Factory Pack Quantity
1

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M24LR04E-R
Figure 50. Principle of comparison between the mask, the slot number and the UID
The AFI field is present if the AFI_flag is set.
The pulse is generated according to the definition of the EOF in ISO/IEC 15693-2.
The first slot starts immediately after the request EOF is received. To switch to the next slot,
the VCD sends an EOF.
The following rules and restrictions apply:
Mask value received in the Inventory command
The Mask value less the padding 0s is loaded
into the Tag comparator
The Slot counter is calculated
The Slot counter is concatened to the Mask value
The concatenated result is compared with
the least significant bits of the Tag UID.
If no M24LR04E-R answer is detected, the VCD may switch to the next slot by sending
an EOF.
If one or more M24LR04E-R answers are detected, the VCD waits until the complete
frame has been received before sending an EOF for switching to the next slot.
Nb_slots_flags = 0 (16 slots), Slot Counter is 4 bits
Nb_slots_flags = 0
Doc ID 022208 Rev 5
b63
xxxx xxxx ..... xxxx xxxx x xxx xxxx xxxx xxxx
Bits ignored
UID
MSB
MSB
0000 0100 1100 1111 b 16 bits
MSB
xxxx
xxxx 100 1100 1111 b
LSB
MSB
100 1100 1111 b 11 bits
Compare
LSB
LSB
LSB
b0
Anticollision
b
4 bits
15 bits
64 bits
AI06682
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