LCMXO2280C-3FT324I LATTICE SEMICONDUCTOR, LCMXO2280C-3FT324I Datasheet - Page 35

• Manufacturer Part Number: LCMXO2280C-3FT324I
• Description: CPLD MachXO Family 1140 Macro Cells 1.8V/2.5V/3.3V 324-Pin FTBGA Tray
• Manufacturer: LATTICE SEMICONDUCTOR

Specifications of LCMXO2280C-3FT324I

• Package: 324FTBGA
• Family Name: MachXO
• Number Of Macro Cells: 1140
• Maximum Propagation Delay Time: 5.1 ns
• Number Of User I/os: 271
• Typical Operating Supply Voltage: 1.8|2.5|3.3 V
• Ram Bits: 28262.4
• Memory Type: SRAM
• Operating Temperature: -40 to 100 °C

Lattice Semiconductor
Table 3-1. LVDS DC Conditions
BLVDS
The MachXO family supports the BLVDS standard through emulation. The output is emulated using complemen-
tary LVCMOS outputs in conjunction with a parallel external resistor across the driver outputs. The input standard
is supported by the LVDS differential input buffer on certain devices. 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
Z
R
R
R
V
V
V
V
Z
I
DC
OUT
OH
OL
OD
CM
BACK
S
P
T
Parameter
16mA
16mA
2.5V
2.5V
+
-
Output impedance
Driver series resistor
Driver parallel resistor
Receiver termination
Output high voltage
Output low voltage
Output differential voltage
Output common mode voltage
Back impedance
DC output current
80
80
Heavily loaded backplane, effective Zo ~ 45 to 90 ohms differential
2.5V
Over Recommended Operating Conditions
45-90 ohms
80
16mA
Description
2.5V
80
16mA
3-9
-
. . .
. . .
2.5V
80
16mA
Typical
1.43
1.07
0.35
1.25
3.66
294
121
100
100
20
DC and Switching Characteristics
2.5V
80
45-90 ohms
16mA
MachXO Family Data Sheet
80
-
2.5V
2.5V
16mA
16mA
+
-
Units
mA





V
V
V
V