English
Language : 

XC3S100E_06 Datasheet, PDF (123/231 Pages) Xilinx, Inc – Configurable Logic Block (CLB)
◁
R
Table 80: DC Characteristics of User I/Os Using
Single-Ended Standards
Test
Conditions
Logic Level
Characteristics
IOSTANDARD
Attribute
LVTTL(3)
2
IOL IOH
(mA) (mA)
2 –2
VOL
Max (V)
0.4
VOH
Min (V)
2.4
4 4 –4
6 6 –6
8 8 –8
12 12 –12
16 16 –16
LVCMOS33(3) 2
2
–2
4 4 –4
0.4
VCCO – 0.4
6 6 –6
8 8 –8
12 12 –12
16 16 –16
LVCMOS25(3) 2
2
–2
0.4
VCCO – 0.4
4 4 –4
6 6 –6
8 8 –8
12 12 –12
LVCMOS18(3) 2
2
–2
0.4
VCCO – 0.4
4 4 –4
6 6 –6
8 8 –8
LVCMOS15(3) 2
2
–2
4 4 –4
0.4
VCCO – 0.4
6 6 –6
LVCMOS12(3) 2
2
–2
0.4
VCCO - 0.4
PCI33_3(4)
1.5 –0.5 10% VCCO 90% VCCO
PCI66_3(4)
1.5 –0.5 10% VCCO 90% VCCO
PCIX
1.5 –0.5 10% VCCO 90% VCCO
HSTL_I_18
8 –8
0.4
VCCO - 0.4
HSTL_III_18
24 –8
0.4
VCCO - 0.4
SSTL18_I
6.7 –6.7 VTT – 0.475 VTT + 0.475
DC and Switching Characteristics
Table 80: DC Characteristics of User I/Os Using
Single-Ended Standards (Continued)
Test
Conditions
Logic Level
Characteristics
IOSTANDARD
Attribute
IOL IOH
(mA) (mA)
VOL
Max (V)
VOH
Min (V)
SSTL2_I
8.1 –8.1 VTT – 0.61 VTT + 0.61
Notes:
1. The numbers in this table are based on the conditions set forth in
Table 76 and Table 79.
2. Descriptions of the symbols used in this table are as follows:
– IOL the output current condition under which VOL is tested
– IOH the output current condition under which VOH is tested
– VOL the output voltage that indicates a Low logic level
– VOH the output voltage that indicates a High logic level
– VIL the input voltage that indicates a Low logic level
– VIH the input voltage that indicates a High logic level
– VCCO the supply voltage for output drivers
– VREF the reference voltage for setting the input switching threshold
– VTT the voltage applied to a resistor termination
3. For the LVCMOS and LVTTL standards: the same VOL and VOH
limits apply for both the Fast and Slow slew attributes.
4. Tested according to the relevant PCI specifications. For more
information, see XAPP653: Virtex-II Pro and Spartan-3 3.3V PCI
Reference Design.
DS312-3 (v3.4) November 9, 2006
www.xilinx.com
123
Product Specification
 ▷