- Lepton
3
x1 - Lepton
3
x4 - Technical Information Manual
16
Device Input and Output Specifications
Parameter
Min.
Typ.
Max.
Unit
Conditions
nRST
VIL
-0.3
0.8 V
VIH
2
3.6 V
Hysteresis voltage
400
mV
Internal pull-up resistor
14
21
25
kΩ
Reset pulse width
25
μs
Digital inputs
VIL
-0.3
0.8 V
VIH
2
3.6 V
Hysteresis voltage
400
mV
Internal pull-down resistor
20
35
50
kΩ
Digital outputs
VOL
0.0
0.6 V
VOH
2.7
3.6 V
Drive current (sink or source)
8
mA
UART
Default baud rate
921.6 kbaud
Configurable baud rate
9.6
921.6 kbaud
Data bits
8
bits
Parity bit
None
Stop bits
1
bits
Tab. 3.7: Digital Interface Specification
EPC Class-1 Generation-2 Operation
Supported RF modes
The R3101C Lepton
3
x1/R3104C Lepton
3
x4 support the following link profiles, whose characteristics are
reported in the following table:
Link Profile Regulation
Forward Link Profile
Reverse Link Profile
R2T Modulation
Tari
PIE T2R Modulation Link Frequency
1
ETSI
PR-ASK
20
μs
2
Miller M=2
320 kHz
2
ETSI
PR-ASK
20 μs
2
Miller M=4
320 kHz
3
FCC
PR-ASK
20 μs
2
Miller M=4
250 kHz
4
ETSI
PR-ASK
15 μs
2
Miller M=2
320 kHz
5
ETSI/FCC
PR-ASK
20 μs
2
Miller M=8
160 kHz
Tab. 3.8: RF Modes
–
Forward and Reverse Link Profiles
