DS077 Datasheet, PDF (34/108 Pages) Xilinx, Inc – Product Availability

Spartan-IIE FPGA Family: DC and Switching Characteristics
R
Input/Output
V_IL
Standard
V, Min
V, Max
V_IH
V, Min
V, Max
HSTL I
–0.5
V_REF – 0.1 V_REF + 0.1
3.6
HSTL III
–0.5
V_REF – 0.1 V_REF + 0.1
3.6
HSTL IV
–0.5
V_REF – 0.1 V_REF + 0.1
3.6
SSTL3 I
–0.5
V_REF – 0.2 V_REF + 0.2
3.6
SSTL3 II
–0.5
V_REF – 0.2 V_REF + 0.2
3.6
SSTL2 I
–0.5
V_REF – 0.2 V_REF + 0.2
3.6
SSTL2 II
–0.5
V_REF – 0.2 V_REF + 0.2
3.6
CTT
–0.5
V_REF – 0.2 V_REF + 0.2
3.6
AGP
–0.5
V_REF – 0.2 V_REF + 0.2
3.6
Notes:
1. V_OL and V_OH for lower drive currents are sample tested.
2. Tested according to the relevant specifications.
LVDS DC Specifications
V_OL
V, Max
V_OH
V, Min
I_OL
I_OH
mA
mA
0.4
0.4
0.4
V_REF – 0.6
V_REF – 0.8
V_REF – 0.61
V_REF – 0.8
V_REF – 0.4
10% V_CCO
V_CCO – 0.4
V_CCO – 0.4
V_CCO – 0.4
V_REF + 0.6
V_REF + 0.8
V_REF + 0.61
V_REF + 0.8
V_REF + 0.4
90% V_CCO
8
24
48
8
16
7.6
15.2
8
Note (2)
–8
–8
–8
–8
–16
–7.6
–15.2
–8
Note (2)
Symbol
V_CCO
V_OH
V_OL
V_ODIFF
V_OCM
V_IDIFF
V_ICM
Description
Supply voltage
Output High voltage for Q and Q
Output Low voltage for Q and Q
Differential output voltage (Q – Q),
Q = High or (Q – Q), Q = High
Output common-mode voltage
Differential input voltage (Q – Q),
Q = High or (Q – Q), Q = High
Input common-mode voltage
Conditions
R_T = 100Ω across Q and Q signals
R_T = 100Ω across Q and Q signals
R_T = 100Ω across Q and Q signals
Min Typ Max
2.375 2.5 2.625
1.25 1.425 1.6
0.9 1.075 1.25
250 350 450
R_T = 100Ω across Q and Q signals 1.125 1.25 1.375
Common-mode input voltage = 1.25 V 100 350
-
Differential input voltage = ±350 mV 0.2 1.25 2.2
Units
V
V
V
mV
V
mV
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 V_OH 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
V_CCO
V_OH
V_OL
V_IH
V_IL
Differential input voltage
Min
Max
3.0
1.8
2.11
0.96
1.27
1.49
2.72
0.86
2.125
0.3
-
Min
Max
3.3
1.92
2.28
1.06
1.43
1.49
2.72
0.86
2.125
0.3
-
Min
Max
3.6
2.13
2.41
1.30
1.57
1.49
2.72
0.86 2.125
0.3
-
Units
V
V
V
V
V
V
34
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DS077-3 (v2.3) June 18, 2008
Product Specification