R
Spartan-IIE FPGA Family: DC and Switching Characteristics
VIL
VIH
VOL
V, Max
0.4
VOH
IOL
mA
8
IOH
mA
–8
Input/Output
Standard
V, Min
–0.5
–0.5
–0.5
–0.5
–0.5
–0.5
–0.5
–0.5
–0.5
V, Max
V, Min
V, Max
3.6
V, Min
HSTL I
HSTL III
HSTL IV
SSTL3 I
SSTL3 II
SSTL2 I
SSTL2 II
CTT
VREF – 0.1
VREF – 0.1
VREF – 0.1
VREF – 0.2
VREF – 0.2
VREF – 0.2
VREF – 0.2
VREF – 0.2
VREF – 0.2
VREF + 0.1
VREF + 0.1
VREF + 0.1
VREF + 0.2
VREF + 0.2
VREF + 0.2
VREF + 0.2
VREF + 0.2
VREF + 0.2
VCCO – 0.4
VCCO – 0.4
VCCO – 0.4
VREF + 0.6
VREF + 0.8
3.6
0.4
24
48
8
–8
3.6
0.4
–8
3.6
VREF – 0.6
VREF – 0.8
–8
3.6
16
7.6
15.2
8
–16
–7.6
–15.2
–8
3.6
VREF – 0.61 VREF + 0.61
3.6
VREF – 0.8
VREF – 0.4
10% VCCO
VREF + 0.8
VREF + 0.4
3.6
AGP
3.6
90% VCCO Note (2) Note (2)
Notes:
1. VOL and VOH for lower drive currents are sample tested.
2. Tested according to the relevant specifications.
LVDS DC Specifications
Symbol
VCCO
VOH
Description
Supply voltage
Conditions
Min
Typ
Max Units
2.375
2.5
2.625
1.6
V
V
Output High voltage for Q and Q
Output Low voltage for Q and Q
RT = 100Ω across Q and Q signals
RT = 100Ω across Q and Q signals
RT = 100Ω across Q and Q signals
1.25 1.425
VOL
0.9
1.075 1.25
350 450
V
VODIFF
Differential output voltage (Q – Q),
Q = High or (Q – Q), Q = High
250
mV
VOCM
VIDIFF
Output common-mode voltage
RT = 100Ω across Q and Q signals
1.125 1.25 1.375
V
Differential input voltage (Q – Q),
Q = High or (Q – Q), Q = High
Common-mode input voltage = 1.25 V 100
350
-
mV
VICM
Input common-mode voltage
Differential input voltage = 350 mV 0.2
1.25
2.2
V
LVPECL DC Specifications
These values are valid at the output of the source termina-
tion pack shown under LVPECL, with a 100Ω differential
load only. The VOH levels are 200 mV below standard
LVPECL levels and are compatible with devices tolerant of
lower common-mode ranges. The following table summa-
rizes the DC output specifications of LVPECL.
DC Parameter
Min
Max
Min
Max
Min
Max
Units
VCCO
3.0
3.3
3.6
V
V
V
V
V
V
VOH
1.8
0.96
1.49
0.86
0.3
2.11
1.27
2.72
2.125
-
1.92
1.06
1.49
0.86
0.3
2.28
1.43
2.72
2.125
-
2.13
1.30
1.49
0.86
0.3
2.41
1.57
2.72
2.125
-
VOL
VIH
VIL
Differential input voltage
34
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DS077-3 (v2.3) June 18, 2008
Product Specification
XILINX [ XILINX, INC ]
