LFE2-6E-7T144C Lattice, LFE2-6E-7T144C Datasheet - Page 56

• Manufacturer Part Number: LFE2-6E-7T144C
• Description: FPGA - Field Programmable Gate Array 6K LUTs 90 I/O DSP 1.2V -7
• Manufacturer: Lattice

Specifications of LFE2-6E-7T144C

• Number Of I/os: 90
• Maximum Operating Frequency: 420 MHz
• Operating Supply Voltage: 1.2 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Package / Case: TQFP-144
• Minimum Operating Temperature: 0 C
• Factory Pack Quantity: 300

Lattice Semiconductor
BLVDS
The LatticeECP2 devices support the 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
V
Z
R
R
R
V
V
V
V
I
1. For input buffer, see LVDS table.
DC
16mA
16mA
OUT
CCIO
OH
OL
OD
CM
S
TLEFT
TRIGHT
Parameter
2.5V
2.5V
+
-
Output Driver Supply (+/- 5%)
Driver Impedance
Driver Series Resistor (+/- 1%)
Driver Parallel Resistor (+/- 1%)
Receiver Termination (+/- 1%)
Output High Voltage (After R1)
Output Low Voltage (After R1)
Output Differential Voltage (After R1)
Output Common Mode Voltage
DC Output Current
90 ohms
90 ohms
45-90
ohms
90 ohms
Heavily loaded backplane, effective Zo ~ 45 to 90 ohms differential
2.5V
Over Recommended Operating Conditions
1
16mA
Description
90 ohms
2.5V
16mA
3-9
-
. . .
. . .
90 ohms
2.5V
16mA
Zo = 45Ω
10.00
90.00
45.00
45.00
11.24
2.50
1.38
1.12
0.25
1.25
90 ohms
DC and Switching Characteristics
2.5V
45-90
ohms
Typical
LatticeECP2 Family Data Sheet
16mA
Zo = 45Ω
90 ohms
90 ohms
10.00
90.00
90.00
90.00
10.20
2.50
1.48
1.02
0.46
1.25
-
Units
2.5V
2.5V
mA
V
Ω
Ω
Ω
Ω
V
V
V
V
16mA
16mA
+
-