LRIS2K-A1S/1GE STMicroelectronics, LRIS2K-A1S/1GE Datasheet - Page 52

• Manufacturer Part Number: LRIS2K-A1S/1GE
• Description: IC MEMORY TAG 64BIT UID ADH ANT
• Manufacturer: STMicroelectronics
• Series: LRIS2Kr

Specifications of LRIS2K-A1S/1GE

• Rf Type: Read / Write
• Frequency: 13.56MHz
• Features: ISO15693, ISO18000-3, 2048-bits
• Package / Case: 76mm x 45mm
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 497-5534-2

Timing definition
21
21.1
21.2
21.3
52/98
Timing definition
t
Upon detection of the rising edge of the EOF received from the VCD, the LRIS2K waits for a
time t
slot during an inventory process. Values of t
Figure 10 on page
t
t
more LRIS2K responses have been received during an Inventory command. It starts from
the reception of the EOF from the LRIS2Ks.
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 LRIS2K.
t
in
Values of t
t
the LRIS2K
t
LRIS2K 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 LRIS2K.
From the time the VCD has generated the rising edge of an EOF:
●
●
Table 25.
1. The tolerance of specific timings is ± 32/f
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 LRIS2K as described
Figure 36: LRIS2K protocol
: LRIS2K response delay
: VCD new request delay
: VCD new request delay in the absence of a response from
t
t
t
t
command description.
rate: High data rate or Low data rate.
1
2
3
1max
SOF
If this EOF is 100% modulated, the VCD waits a time at least equal to t
sending a new EOF.
If this EOF is 10% modulated, the VCD waits a time at least equal to the sum of t
the LRIS2K nominal response time (which depends on the LRIS2K data rate and
subcarrier modulation mode) before sending a new EOF.
1nom
does not apply for write alike requests. Timing conditions for write alike requests are defined in the
is the time taken by the LRIS2K to transmit an SOF to the VCD. t
2
before transmitting its response to a VCD request or before switching to the next
Minimum (min) values
are given in
Timing values
t
1max
318.6 µs
309.2 µs
24.
(2)
+ t
SOF
Table
(1)
(3)
Doc ID 13888 Rev 8
timing.
25.
C
.
Nominal (nom) values
1
are given in
320.9 µs
No t
No t
nom
nom
Table
SOF
depends on the current data
25. The EOF is defined in
Maximum (max) values
323.3 µs
No t
No t
3min
max
max
before
LRIS2K
3min
+