LFE2-50E-H-EV Lattice, LFE2-50E-H-EV Datasheet - Page 68
LFE2-50E-H-EV
Manufacturer Part Number
LFE2-50E-H-EV
Description
MCU, MPU & DSP Development Tools LatticeECP2 Eval Brd - Advanced
Manufacturer
Lattice
Datasheet
1.LFE2-12SE-6FN256C.pdf
(389 pages)
Specifications of LFE2-50E-H-EV
Processor To Be Evaluated
LatticeECP2 FPGA
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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Lattice Semiconductor
MLVDS
The LatticeECP2/M devices support the differential MLVDS standard. This standard is emulated using complemen-
tary LVCMOS outputs in conjunction with a parallel resistor across the driver outputs. The MLVDS input standard is
supported by the LVDS differential input buffer. The scheme shown in Figure 3-5 is one possible solution for
MLVDS standard implementation. Resistor values in Figure 3-5 are industry standard values for 1% resistors.
Figure 3-5. MLVDS (Multipoint Low Voltage Differential Signaling)
Table 3-6. MLVDS DC Conditions
For further information about LVPECL, RSDS, MLVDS, BLVDS and other differential interfaces please see the list
of additional technical information at the end of this data sheet.
16mA
16mA
V
Z
R
R
R
V
V
V
V
I
1. For input buffer, see LVDS table.
DC
Parameter
OUT
OH
OL
OD
CCIO
CM
S
TL
TR
OE
OE
2.5V
2.5V
2.5V
+
+
-
-
35ohms
35ohms
Output Driver Supply (+/-5%)
Driver Impedance
Driver Series Resistor (+/-1%)
Driver Parallel Resistor (+/-1%)
Receiver Termination (+/-1%)
Output High Voltage
Output Low Voltage
Output Differential Voltage
Output Common Mode Voltage
DC Output Current
R
R
S
R
S
TL
=
=
2.5V
50 to 70 ohms +/-1%
1
6
m
1
A
35ohms
OE
R
S
=
Description
Heavily loaded backplace, effective Zo~50 to 70 ohms differential
2.5V
1
6
m
A
35ohms
R
OE
S
=
3-16
2.5V
1
6
Zo=50
m
50 to 70 ohms +/-1%
10.00
35.00
50.00
50.00
21.74
35ohms
A
2.50
1.52
0.98
0.54
1.25
R
OE
S
=
DC and Switching Characteristics
LatticeECP2/M Family Data Sheet
2.5V
Typical
1
6
m
35ohms
A
R
Zo=70
S
OE
10.00
35.00
70.00
70.00
20.00
=
2.50
1.60
0.90
0.70
1.25
35ohms
R
R
TR
S
35ohms
R
=
S
=
Units
mA
V
V
V
V
V
2.5V
2.5V
OE
OE
+
-
16mA
16mA
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