LCMXO640C-3TN100I LATTICE SEMICONDUCTOR, LCMXO640C-3TN100I Datasheet - Page 37
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LCMXO640C-3TN100I
Manufacturer Part Number
LCMXO640C-3TN100I
Description
CPLD MachXO Family 320 Macro Cells 1.8V/2.5V/3.3V 100-Pin TQFP Tray
Manufacturer
LATTICE SEMICONDUCTOR
Datasheet
1.LCMXO1200C-3FTN256I.pdf
(96 pages)
Specifications of LCMXO640C-3TN100I
Package
100TQFP
Family Name
MachXO
Number Of Macro Cells
320
Maximum Propagation Delay Time
4.9 ns
Number Of User I/os
74
Typical Operating Supply Voltage
1.8|2.5|3.3 V
Memory Type
SRAM
Operating Temperature
-40 to 100 °C
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
LCMXO640C-3TN100I
Manufacturer:
Lattice Semiconductor Corporation
Quantity:
10 000
Lattice Semiconductor
For further information on LVPECL, BLVDS and other differential interfaces please see details of additional techni-
cal documentation at the end of the data sheet.
RSDS
The MachXO family supports the differential RSDS standard. The output standard is emulated using complemen-
tary LVCMOS outputs in conjunction with a parallel resistor across the driver outputs on all the devices. The RSDS
input standard is supported by the LVDS differential input buffer on certain devices. The scheme shown in Figure 3-
4 is one possible solution for RSDS standard implementation. Use LVDS25E mode with suggested resistors for
RSDS operation. Resistor 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
VCCIO = 2.5V
RSDS Buffer
Emulated
Z
R
R
R
V
V
V
V
Z
I
On-chip
DC
OUT
OH
OL
OD
BACK
S
P
T
CM
Parameter
Off-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
294
294
Description
121
3-11
Zo = 100
DC and Switching Characteristics
Typical
101.5
1.35
1.15
0.20
1.25
3.66
294
121
100
20
Off-chip
MachXO Family Data Sheet
Ohms
Ohms
Ohms
Ohms
Ohms
Units
100
mA
V
V
V
V
On-chip
+
-