Spartan-7 FPGAs Data Sheet:
DC and AC Switching Characteristics
DS189 (v1.8) September 28, 2018
Product Specification
Introduction
Spartan®-7 FPGAs are available in -2, -1, and -1L speed grades, with -2 having the highest performance.
The Spartan-7 FPGAs predominantly operate at a 1.0V core voltage. The -1L devices are screened for lower
maximum static power and can operate at lower core voltages for lower dynamic power than the -1
devices. The -1L devices operate only at V
CCINT
= V
CCBRAM
= 0.95V and have the same speed
specifications as the -1 speed grade.
Spartan-7 FPGA DC and AC characteristics are specified in commercial (C), industrial (I), and expanded (Q)
temperature ranges. Except the operating temperature range or unless otherwise noted, all the DC and AC
electrical parameters are the same for a particular speed grade (that is, the timing characteristics of a -1Q
expanded speed grade device are the same as for a -1C commercial speed grade device). However, only
selected speed grades and/or devices are available in each temperature range. For example, the -1L speed
grade is only available in the industrial (I) temperature range.
All supply voltage and junction temperature specifications are representative of worst-case conditions.
The parameters included are common to popular designs and typical applications.
Available device and package combinations can be found in:
•
•
7 Series FPGAs Overview
(DS180)
[Ref 1]
XA Spartan-7 Automotive FPGA Data Sheet: Overview
(DS171)
[Ref 2]
This Spartan-7 FPGA data sheet, part of an overall set of documentation on the 7 series FPGAs, is available
on the Xilinx website at
www.xilinx.com/documentation.
DC Characteristics
Table 1:
Absolute Maximum Ratings
(1)
Symbol
FPGA Logic
V
CCINT
V
CCAUX
V
CCBRAM
V
CCO
V
REF
Internal supply voltage.
Auxiliary supply voltage.
Supply voltage for the block RAM memories.
Output drivers supply voltage for HR I/O banks.
Input reference voltage.
–0.5
–0.5
–0.5
–0.5
–0.5
1.1
2.0
1.1
3.6
2.0
V
V
V
V
V
Description
Min
Max
Units
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Spartan-7 FPGAs Data Sheet: DC and AC Switching Characteristics
Table 1:
Absolute Maximum Ratings
(1)
(Cont’d)
Symbol
I/O input voltage.
V
IN(2)(3)(4)
V
CCBATT
I/O input voltage (when V
CCO
= 3.3V) for V
REF
and differential I/O
standards except TMDS_33.
(5)
Key memory battery backup supply.
XADC supply relative to GNDADC.
XADC reference input relative to GNDADC.
Storage temperature (ambient).
Maximum soldering temperature for Pb/Sn component bodies.
(6)
Maximum soldering temperature for Pb-free component bodies.
(6)
Maximum junction temperature.
(6)
Description
Min
–0.4
–0.4
–0.5
–0.5
–0.5
–65
–
–
–
Max
V
CCO
+ 0.55
2.625
2.0
2.0
2.0
150
+220
+260
+125
Units
V
V
V
V
V
°C
°C
°C
°C
XADC
V
CCADC
V
REFP
Temperature
T
STG
T
SOL
T
j
Notes:
1.
2.
3.
4.
5.
6.
Stresses beyond those listed under Absolute Maximum Ratings might cause permanent damage to the device. These are stress ratings only,
and functional operation of the device at these or any other conditions beyond those listed under Operating Conditions is not implied.
Exposure to Absolute Maximum Ratings conditions for extended periods of time might affect device reliability.
The lower absolute voltage specification always applies.
For I/O operation, refer to the
7 Series FPGAs SelectIO Resources User Guide
(UG471)
[Ref 3].
The maximum limit applies to DC signals. For maximum undershoot and overshoot AC specifications, see
Table 4.
See
Table 9
for TMDS_33 specifications.
For soldering guidelines and thermal considerations, see the
7 Series FPGA Packaging and Pinout Specification
(UG475)
[Ref 4].
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Spartan-7 FPGAs Data Sheet: DC and AC Switching Characteristics
Table 2:
Recommended Operating Conditions
(1)(2)
Symbol
FPGA Logic
V
CCINT(3)
V
CCAUX
V
CCBRAM(3)
V
CCO(4)(5)
V
IN(6)
I
IN(8)
V
CCBATT(9)
For -2 and -1 (1.0V) devices: internal supply voltage.
For -1L (0.95V) devices: internal supply voltage.
Auxiliary supply voltage.
For -2 and -1 (1.0V) devices: block RAM supply voltage.
For -1L (0.95V) devices: block RAM supply voltage.
Supply voltage for HR I/O banks.
I/O input voltage.
I/O input voltage (when V
CCO
= 3.3V) for V
REF
and
differential I/O standards except TMDS_33.
(7)
Maximum current through any pin in a powered or unpowered
bank when forward biasing the clamp diode.
Battery voltage.
XADC supply relative to GNDADC.
Externally supplied reference voltage.
Junction temperature operating range for commercial (C)
temperature devices.
T
j
Junction temperature operating range for industrial (I)
temperature devices.
Junction temperature operating range for expanded (Q)
temperature devices.
Notes:
1.
2.
3.
4.
5.
6.
7.
8.
9.
All voltages are relative to ground.
For the design of the power distribution system consult the
7 Series FPGAs PCB Design Guide
(UG483)
[Ref 5].
If V
CCINT
and V
CCBRAM
are operating at the same voltage, V
CCINT
and V
CCBRAM
should be connected to the same supply.
Configuration data is retained even if V
CCO
drops to 0V.
Includes V
CCO
of 1.2V, 1.35V, 1.5V, 1.8V, 2.5V, and 3.3V at ±5%.
The lower absolute voltage specification always applies.
See
Table 9
for TMDS_33 specifications.
A total of 200 mA per bank should not be exceeded.
V
CCBATT
is required only when using bitstream encryption. If battery is not used, connect V
CCBATT
to either ground or V
CCAUX
.
Description
Min
0.95
0.92
1.71
0.95
0.92
1.14
–0.20
–0.20
–
1.0
1.71
1.20
Typ
1.00
0.95
1.80
1.00
0.95
–
–
–
–
–
1.80
1.25
Max
1.05
0.98
1.89
1.05
0.98
3.465
V
CCO
+ 0.20
2.625
10
1.89
1.89
1.30
Units
V
V
V
V
V
V
V
V
mA
V
V
V
XADC
V
CCADC
V
REFP
Temperature
0
–40
–40
–
–
–
85
100
125
°C
°C
°C
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Spartan-7 FPGAs Data Sheet: DC and AC Switching Characteristics
Table 3:
DC Characteristics Over Recommended Operating Conditions
Symbol
V
DRINT
V
DRI
I
REF
I
L
C
IN(2)
Description
Data retention V
CCINT
voltage (below which configuration
data might be lost).
Data retention V
CCAUX
voltage (below which configuration
data might be lost).
V
REF
leakage current per pin.
Input or output leakage current per pin (sample-tested).
Die input capacitance at the pad.
Pad pull-up (when selected) at V
IN
= 0V, V
CCO
= 3.3V.
Pad pull-up (when selected) at V
IN
= 0V, V
CCO
= 2.5V.
Min
0.75
1.5
–
–
–
90
68
34
23
12
68
–
–
28
35
44
–
–
Typ
(1)
–
–
–
–
–
–
–
–
–
–
–
–
–
40
50
60
1.010
2
Max
–
–
15
15
8
330
250
220
150
120
330
25
150
55
65
83
–
–
Units
V
V
µA
µA
pF
µA
µA
µA
µA
µA
µA
mA
nA
Ω
Ω
Ω
–
Ω
I
RPU
Pad pull-up (when selected) at V
IN
= 0V, V
CCO
= 1.8V.
Pad pull-up (when selected) at V
IN
= 0V, V
CCO
= 1.5V.
Pad pull-up (when selected) at V
IN
= 0V, V
CCO
= 1.2V.
I
RPD
I
CCADC
I
BATT(3)
Pad pull-down (when selected) at V
IN
= 3.3V.
Analog supply current, analog circuits in powered up state.
Battery supply current.
Thevenin equivalent resistance of programmable input
termination to V
CCO
/2 (UNTUNED_SPLIT_40).
R
IN_TERM(4)
Thevenin equivalent resistance of programmable input
termination to V
CCO
/2 (UNTUNED_SPLIT_50).
Thevenin equivalent resistance of programmable input
termination to V
CCO
/2 (UNTUNED_SPLIT_60).
n
r
Notes:
1.
2.
3.
4.
Temperature diode ideality factor.
Temperature diode series resistance.
Typical values are specified at nominal voltage, 25°C.
This measurement represents the die capacitance at the pad, not including the package.
Maximum value specified for worst case process at 25°C.
Termination resistance to a V
CCO
/2 level.
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Spartan-7 FPGAs Data Sheet: DC and AC Switching Characteristics
Table 4:
V
IN
Maximum Allowed AC Voltage Overshoot and Undershoot for HR I/O Banks
(1)(2)
AC Voltage Overshoot
% of UI at –40°C to 125°C
AC Voltage Undershoot
–0.40
V
CCO
+ 0.55
100
–0.45
–0.50
–0.55
V
CCO
+ 0.60
V
CCO
+ 0.65
V
CCO
+ 0.70
V
CCO
+ 0.75
V
CCO
+ 0.80
V
CCO
+ 0.85
V
CCO
+ 0.90
V
CCO
+ 0.95
Notes:
1.
2.
A total of 200 mA per bank should not be exceeded.
The peak voltage of the overshoot or undershoot, and the duration above V
CCO
+ 0.20V or below GND – 0.20V, must not exceed the values
in this table.
% of UI at –40°C to 125°C
100
61.7
25.8
11.0
4.77
2.10
0.94
0.43
0.20
0.09
0.04
0.02
46.6
21.2
9.75
4.55
2.15
1.02
0.49
0.24
–0.60
–0.65
–0.70
–0.75
–0.80
–0.85
–0.90
–0.95
Table 5:
Typical Quiescent Supply Current
(1)(2)(3)
Speed Grade
Symbol
Description
Device
-2C
XC7S6
XC7S15
XC7S25
XC7S50
XC7S75
I
CCINTQ
Quiescent V
CCINT
supply current.
XC7S100
XA7S6
XA7S15
XA7S25
XA7S50
XA7S75
XA7S100
36
36
48
95
148
148
N/A
N/A
N/A
N/A
N/A
N/A
1.0V
-2I
36
36
48
95
148
148
36
36
48
95
148
148
0.95V Units
-1I
36
36
48
95
148
148
36
36
48
95
148
148
-1C
36
36
48
95
148
148
N/A
N/A
N/A
N/A
N/A
N/A
-1Q
36
36
48
95
148
148
36
36
48
95
148
148
-1LI
32
32
43
59
134
134
N/A
N/A
N/A
N/A
N/A
N/A
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
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