LFEC3E-3F256I Lattice, LFEC3E-3F256I Datasheet - Page 45
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LFEC3E-3F256I
Manufacturer Part Number
LFEC3E-3F256I
Description
FPGA LatticeEC Family 3100 Cells 340MHz 130nm (CMOS) Technology 1.2V 256-Pin FBGA
Manufacturer
Lattice
Datasheet
1.LFEC3E-5TN144C.pdf
(163 pages)
Specifications of LFEC3E-3F256I
Package
256FBGA
Family Name
LatticeEC
Device Logic Units
3100
Maximum Internal Frequency
340 MHz
Typical Operating Supply Voltage
1.2 V
Maximum Number Of User I/os
160
Ram Bits
56320
In System Programmability
Yes
Lead Free Status / Rohs Status
Contains lead / RoHS non-compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
LFEC3E-3F256I
Manufacturer:
Lattice Semiconductor Corporation
Quantity:
10 000
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Lattice Semiconductor
BLVDS
The LatticeECP/EC devices support BLVDS standard. This standard is emulated using complementary LVCMOS
outputs in conjunction with a parallel external resistor across the driver outputs. BLVDS is intended for use when
multi-drop and bi-directional multi-point differential signaling is required. The scheme shown in Figure 3-2 is one
possible solution for bi-directional multi-point differential signals.
Figure 3-2. BLVDS Multi-point Output Example
Table 3-2. BLVDS DC Conditions
2.5V
2.5V
+
-
Z
R
R
V
V
V
V
I
1. For input buffer, see LVDS table.
DC
OUT
OH
OL
OD
Parameter
TLEFT
TRIGHT
CM
80
80
Heavily loaded backplane, effective Zo ~ 45 to 90 ohms differential
2.5V
Over Recommended Operating Conditions
Output impedance
Left end termination
Right end termination
Output high voltage
Output low voltage
Output differential voltage
Output common mode voltage
DC output current
1
45-90 ohms
80
2.5V
Description
80
3-9
-
. . .
. . .
2.5V
80
Zo = 45
1.375
1.125
0.25
1.25
11.2
100
45
45
Typical
DC and Switching Characteristics
LatticeECP/EC Family Data Sheet
2.5V
80
45-90 ohms
Zo = 90
1.48
1.02
0.46
1.25
10.2
100
90
90
80
-
Units
ohm
ohm
ohm
mA
V
V
V
V
2.5V
2.5V
+
-
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