LFE2M20E-6FN484C LATTICE SEMICONDUCTOR, LFE2M20E-6FN484C Datasheet - Page 68
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LFE2M20E-6FN484C
Manufacturer Part Number
LFE2M20E-6FN484C
Description
FPGA LatticeECP2M Family 19000 Cells 90nm (CMOS) Technology 1.2V 484-Pin FBGA
Manufacturer
LATTICE SEMICONDUCTOR
Datasheet
1.LFE2-12SE-6FN256C.pdf
(389 pages)
Specifications of LFE2M20E-6FN484C
Package
484FBGA
Family Name
LatticeECP2M
Device Logic Units
19000
Typical Operating Supply Voltage
1.2 V
Maximum Number Of User I/os
304
Ram Bits
1246208
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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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