— OBSOLETE — OBSOLETE — OBSOLETE — OBSOLETE —
R
Virtex-II Platform FPGAs: DC and Switching Characteristics
Table 6: DC Input and Output Levels (Continued)
V
V
V
V
I
I
OH
Input/Output
Standard
SSTL3 I
IL
IH
OL
OH
OL
V, Min
– 0.5
– 0.5
– 0.5
– 0.5
– 0.5
V, Max
V, Min
V, Max
V, Max
V, Min
mA
8
mA
– 8
VREF – 0.2
VREF – 0.2
VREF + 0.2
VREF + 0.2
VCCO + 0.5
VCCO + 0.5
VCCO + 0.5
VCCO + 0.5
VCCO + 0.5
VREF – 0.6
VREF – 0.8
VREF – 0.65
VREF – 0.80
10% VCCO
VREF + 0.6
VREF + 0.8
VREF + 0.65
VREF + 0.80
90% VCCO
SSTL3 II
SSTL2 I
16
– 16
V
REF – 0.15
VREF + 0.15
VREF + 0.15
VREF + 0.2
7.6
– 7.6
– 15.2
Note 2
SSTL2 II
AGP
VREF – 0.15
15.2
Note 2
V
REF – 0.2
Notes:
1. OL and VOH for lower drive currents are sample tested. The DONE pin is always LVTTL 12 mA.
2. Tested according to the relevant specifications.
V
3. LVTTL and LVCMOS inputs have approximately 100 mV of hysteresis.
LDT Differential Signal DC Specifications (LDT_25)
Table 7: LDT DC Specifications
DC Parameter
Symbol
Conditions
Min
500
–15
560
–15
200
–15
500
–15
Typ
Max
Units
mV
mV
mV
mV
mV
mV
mV
mV
Differential Output Voltage
V
R = 100 Ω across Q and Q signals
600
600
600
600
700
15
OD
T
Change in V Magnitude
Δ V
OD
OD
Output Common Mode Voltage
V
R = 100 Ω across Q and Q signals
640
15
OCM
T
Change in V Magnitude
Δ V
OS
OCM
Input Differential Voltage
V
1000
15
ID
Change in V Magnitude
Δ V
ID
ID
Input Common Mode Voltage
V
700
15
ICM
Change in V
Magnitude
Δ V
ICM
ICM
LVDS DC Specifications (LVDS_33 & LVDS_25)
Table 8: LVDS DC Specifications
DC Parameter
Supply Voltage
Symbol
VCCO
VOH
Conditions
Min
Typ
Max
Units
3.3 or 2.5
V
V
V
Output High Voltage for Q and Q
Output Low Voltage for Q and Q
RT = 100 Ω across Q and Q signals
RT = 100 Ω across Q and Q signals
1.575
VOL
0.925
250
Differential Output Voltage (Q – Q),
Q = High (Q – Q), Q = High
VODIFF
VOCM
VIDIFF
VICM
RT = 100 Ω across Q and Q signals
RT = 100 Ω across Q and Q signals
Common-mode input voltage = 1.25 V
Differential input voltage = 350 mV
350
1.2
400
1.375
mV
V
Output Common-Mode Voltage
1.125
100
Differential Input Voltage (Q – Q),
Q = High (Q – Q), Q = High
350
1.25
N/A
mV
V
Input Common-Mode Voltage
0.2
VCCO – 0.5
DS031-3 (v4.0) April 7, 2014
Product Specification
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