M24LR04E-RMC6T/2 STMicroelectronics, M24LR04E-RMC6T/2 Datasheet - Page 78
M24LR04E-RMC6T/2
Manufacturer Part Number
M24LR04E-RMC6T/2
Description
EEPROM 4-Kbit EEProm 400kHz 13.56Mhz 1.8 to 5.5V
Manufacturer
STMicroelectronics
Datasheet
1.M24LR04E-RDW6T2.pdf
(142 pages)
Specifications of M24LR04E-RMC6T/2
Rohs
yes
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Timing definition
25
25.1
25.2
25.3
78/142
Timing definition
t
Upon detection of the rising edge of the EOF received from the VCD, the M24LR04E-R
waits for a time t
next slot during an inventory process. Values of t
in
t
t
more M24LR04E-R responses have been received during an Inventory command. It starts
from the reception of the EOF from the M24LR04E-Rs.
The EOF sent by the VCD may be either 10% or 100% modulated regardless of the
modulation index used for transmitting the VCD request to the M24LR04E-R.
t
described in
Values of t
t
from the M24LR04E-R
t
M24LR04E-R response has been received.
The EOF sent by the VCD may be either 10% or 100% modulated regardless of the
modulation index used for transmitting the VCD request to the M24LR04E-R.
From the time the VCD has generated the rising edge of an EOF:
Table 35.
1. The tolerance of specific timings is ± 32/fC.
2.
3. t
2
2
3
1
2
3
is the time after which the VCD may send an EOF to switch to the next slot when no
is the time after which the VCD may send an EOF to switch to the next slot when one or
is also the time after which the VCD may send a new request to the M24LR04E-R, as
Figure
: M24LR04E-R response delay
: VCD new request delay
: VCD new request delay when no response is received
t
t
t
t
command description.
data rate: High data rate or Low data rate.
1
2
3
1max
SOF
If this EOF is 100% modulated, the VCD waits for a time at least equal to t
sending a new EOF.
If this EOF is 10% modulated, the VCD waits for a time at least equal to the sum of t
+ the M24LR04E-R nominal response time (which depends on the M24LR04E-R data
rate and subcarrier modulation mode) before sending a new EOF.
does not apply for write-alike requests. Timing conditions for write-alike requests are defined in the
is the time taken by the M24LR04E-R to transmit an SOF to the VCD. t
22.
2
Minimum (min) values
are given in
Figure
Timing values
t
1max
1nom
318.6 µs
309.2 µs
(2)
48.
before transmitting its response to a VCD request or switching to the
+ t
SOF
Table
(3)
(1)
Doc ID 022208 Rev 5
35.
Nominal (nom) values
320.9 µs
No t
No t
1
are given in
nom
nom
Table
SOF
Maximum (max) values
depends on the current
35. The EOF is defined
323.3 µs
No t
No t
M24LR04E-R
max
max
3min
before
3min
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