R
DC and Switching Characteristics
Table 6: Quiescent Supply Current Characteristics
Symbol
Description
Device
XC3S100E
XC3S250E
XC3S500E
XC3S1200E
XC3S1600E
XC3S100E
XC3S250E
XC3S500E
XC3S1200E
XC3S1600E
XC3S100E
XC3S250E
XC3S500E
XC3S1200E
XC3S1600E
Typ(4)
15
Max
Units
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
ICCINTQ
Quiescent VCCINT supply current
38
68
98
108
1.0
1.5
1.7
1.8
2.2
10
ICCOQ
Quiescent VCCO supply current
ICCAUXQ
Quiescent VCCAUX supply current
15
25
35
45
Notes:
1. The numbers in this table are based on the conditions set forth in Table 4. Quiescent supply current is measured with all I/O drivers in a
high-impedance state and with all pull-up/pull-down resistors at the I/O pads disabled. For typical values, the ambient temperature (T ) is
A
25°C with V
= 1.2V, V
= 2.5V, and V
= 2.5V. The FPGA is programmed with a "blank" configuration data file (i.e., a design
CCINT
CCO
CCAUX
with no functional elements instantiated). For conditions other than those described above, (e.g., a design including functional elements),
measured quiescent current levels may be higher than the values in the table.
2. There are two recommended ways to estimate the total power consumption (quiescent plus dynamic) for a specific design: a) The
Spartan-3E Web Power Tool, a future web-based application, provides quick, approximate, typical estimates, and does not require a netlist
of the design. b) XPower, which will be included in a future release of the Xilinx development software, takes a netlist as input to provide
more accurate maximum and typical estimates.
3. The maximum numbers in this table indicate the minimum current each power rail requires in order for the FPGA to power-on successfully.
4. All typical quiescent current values are early estimates.
4
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Advance Product Specification
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