XC3S250E Xilinx, Inc., XC3S250E Datasheet - Page 108

• Manufacturer Part Number: XC3S250E
• Description: Spartan-3E FPGA Family
• Manufacturer: Xilinx, Inc.

Table 7: Recommended Operating Conditions for User I/Os Using Single-Ended Standards
DS312-3 (v1.0) March 1, 2005
Advance Product Specification
Notes:
1.
2.
3.
4.
5.
6.
7.
HSTL_I_18
HSTL_III_18
LVCMOS12
LVCMOS15
LVCMOS18
LVCMOS25
LVCMOS33
LVTTL
PCI33_3
PCI66_3
PCIX
SSTL18_I
SSTL2_I
IOSTANDARD
Descriptions of the symbols used in this table are as follows:
V
V
V
V
The V
For device operation, the maximum signal voltage (V
There is approximately 100 mV of hysteresis on inputs using any LVCMOS standard.
All Dedicated pins (PROG_B, DONE, TCK, TDI, TDO, and TMS) use the LVCMOS25 standard and draw power from the V
The Dual-Purpose configuration pins use the LVCMOS25 standard before the User mode. When using these pins as part of a standard 2.5V
configuration interface, apply 2.5V to the V
The Global Clock Inputs (GCLK0-GCLK15, RHCLK0-RHCLK7, and LHCLK0-LHCLK7) are Dual-Purpose pins to which any signal standard
may be assigned.
For more information, see "Virtex-II Pro and Spartan-3 3.3V PCI Reference Design" (XAPP653).
CCO
REF
IL
IH
Attribute
(7)
-- the input voltage that indicates a Low logic level
-- the input voltage that indicates a High logic level
-- the reference voltage for setting the input switching threshold
-- the supply voltage for output drivers
CCO
(7)
(7)
R
(4)
(4)
(4)
(4,5)
(4)
rails supply only output drivers, not input circuits.
Min (V)
1.65
1.70
1.7
1.7
1.1
1.4
2.3
3.0
3.0
2.3
-
-
-
V
CCO
Nom (V)
for Drivers
TBD
1.80
1.8
1.8
1.2
1.5
1.8
2.5
3.3
3.3
3.0
3.0
2.5
CCO
lines of Banks 0, 1, and 2 at power-on as well as throughout configuration.
Max (V)
(2)
1.95
3.45
3.45
1.90
1.9
1.9
1.3
1.6
2.7
2.7
-
-
-
IH
max) may be as high as V
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Min (V)
0.833
1.15
0.8
-
-
-
-
-
-
-
-
-
-
Nom (V)
0.900
V
1.25
0.9
1.1
REF
-
-
-
-
-
-
-
-
-
IN
max. See
Max (V)
0.969
1.35
1.1
-
-
-
-
-
-
-
-
-
-
Table
DC and Switching Characteristics
1.
V
V
V
V
REF
REF
Max (V)
REF
REF
TBD
0.38
0.38
0.38
V
0.7
0.8
0.8
0.9
0.9
- 0.125
IL
- 0.15
- 0.1
- 0.1
CCAUX
V
V
V
V
REF
REF
REF
REF
Min (V)
TBD
V
0.8
0.8
0.8
1.7
2.0
2.0
1.5
1.5
rail (2.5V).
+ 0.125
+ 0.15
IH
+ 0.1
+ 0.1
5