LCMXO2280C-M-EVN Lattice, LCMXO2280C-M-EVN Datasheet - Page 52

• Manufacturer Part Number: LCMXO2280C-M-EVN
• Description: Microcontroller Modules & Accessories MachXO Mini Dev Kit
• Manufacturer: Lattice
• Series: MachXOr
• Type: PLDr

Specifications of LCMXO2280C-M-EVN

• Silicon Manufacturer: Lattice
• Silicon Core Number: LCMXO2280C-4TN144C
• Silicon Family Name: MachXO
• Rohs Compliant: Yes
• Contents: Board, Cables, Documentation
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With/related Products: LCMXO2280C-3FTN256C

Lattice Semiconductor
RSDS
The MachXO2 family supports the differential RSDS standard. The output standard is emulated using complemen-
tary LVCMOS outputs in conjunction with resistors across the driver outputs on all the devices. The RSDS input
standard is supported by the LVDS differential input buffer. The scheme shown in Figure 3-4 is one possible solu-
tion for RSDS standard implementation. Use LVDS25E mode with suggested resistors for RSDS operation. Resis-
tor values in Figure 3-4 are industry standard values for 1% resistors.
Figure 3-4. RSDS (Reduced Swing Differential Standard)
Table 3-4. RSDS DC Conditions
VCCIO = 2.5V
8mA
8mA
Z
R
R
R
V
V
V
V
Z
I
DC
OUT
BACK
OH
OL
OD
CM
S
P
T
VCCIO = 2.5V
RSDS Buffer
Parameter
Emulated
On-chip
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
Off-chip
294
294
Description
121
3-13
Zo = 100
Typical
101.5
1.35
1.15
0.20
1.25
3.66
294
121
100
20
DC and Switching Characteristics
MachXO2 Family Data Sheet
Off-chip
100
Ohms
Ohms
Ohms
Ohms
Ohms
Units
mA
V
V
V
V
On-chip
+
-