LFE2-50E-5F484I Lattice, LFE2-50E-5F484I Datasheet - Page 63
![no-image](/images/manufacturer_photos/0/3/380/lattice_sml.jpg)
LFE2-50E-5F484I
Manufacturer Part Number
LFE2-50E-5F484I
Description
FPGA 48000 CELLS 90NM (CMOS) 1.2
Manufacturer
Lattice
Series
ECP2r
Datasheet
1.LFE2-12E-5FN256C.pdf
(385 pages)
Specifications of LFE2-50E-5F484I
Number Of Logic Elements/cells
48000
Number Of Labs/clbs
6000
Total Ram Bits
396288
Number Of I /o
339
Number Of Gates
-
Voltage - Supply
1.14 V ~ 1.26 V
Mounting Type
Surface Mount
Operating Temperature
-40°C ~ 100°C
Package / Case
484-BBGA
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
Q3220905AABC
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Lattice Semiconductor
LVDS25E
The top and bottom sides of LatticeECP2/M devices support LVDS outputs via emulated complementary LVCMOS
outputs in conjunction with a parallel resistor across the driver outputs. The scheme shown in Figure 3-1 is one
possible solution for point-to-point signals.
Figure 3-1. LVDS25E Output Termination Example
Table 3-2. LVDS25E DC Conditions
LVCMOS33D
All I/O banks support emulated differential I/O using the LVCMOS33D I/O type. This option, along with the external
resistor network, provides the system designer the flexibility to place differential outputs on an I/O bank with 3.3V
VCCIO. The default drive current for LVCMOS33D output is 12mA with the option to change the device strength to
4mA, 8mA, 16mA or 20mA. Follow the LVCMOS33 specifications for the DC characteristics of the LVCMOS33D.
VCCIO = 2.5V (±5%)
VCCIO = 2.5V (±5%)
V
Z
R
R
R
V
V
V
V
Z
I
DC
Parameter
OUT
OH
OL
OD
BACK
CCIO
T
CM
S
P
8 mA
8 mA
ON-chip
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
Back Impedance
DC Output Current
OFF-chip
RS=158 ohms
(±1%)
RS=158 ohms
(±1%)
Transmission line, Zo = 100 ohm differential
Description
RP = 140 ohms
(±1%)
3-12
Typical
DC and Switching Characteristics
LatticeECP2/M Family Data Sheet
RT = 100 ohms
(±1%)
100.5
2.50
1.43
1.07
0.35
1.25
6.03
158
140
100
20
OFF-chip ON-chip
Units
mA
Ω
Ω
Ω
Ω
Ω
V
V
V
V
V
+
-
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