XC3S400-4FT256C Xilinx Inc, XC3S400-4FT256C Datasheet - Page 77

• Manufacturer Part Number: XC3S400-4FT256C
• Description: SEMI CONDUCTOR
• Manufacturer: Xilinx Inc

Specifications of XC3S400-4FT256C

• Case: BGA
• Dc: 04+

Table 47: Test Methods for Timing Measurement at I/Os (Continued)
DS099-3 (v2.2) May 25, 2007
Product Specification
98
Notes:
1.
2.
3.
LVCMOS18
LVDCI_18
LVDCI_DV2_18
LVCMOS25
LVDCI_25
LVDCI_DV2_25
LVCMOS33
LVDCI_33
LVDCI_DV2_33
LVTTL
PCI33_3
SSTL18_I
SSTL18_I_DCI
SSTL18_II
SSTL2_I
SSTL2_I_DCI
SSTL2_II
SSTL2_II_DCI
Differential
LDT_25 (ULVDS_25)
LVDS_25
LVDS_25_DCI
BLVDS_25
LVDSEXT_25
LVDSEXT_25_DCI
LVPECL_25
RSDS_25
DIFF_HSTL_II_18
DIFF_HSTL_II_18_DCI
DIFF_SSTL2_II
DIFF_SSTL2_II_DCI
Descriptions of the relevant symbols are as follows:
The load capacitance (C
According to the PCI specification.
Signal Standard
(IOSTANDARD)
V
V
V
V
V
R
V
REF
ICM
M
L
H
T
T
–
–
–
–
–
R
–
Low-level test voltage at Input pin
Termination voltage
–
High-level test voltage at Input pin
Effective termination resistance, which takes on a value of 1M
Voltage of measurement point on signal transition
Rising
Falling
The common mode input voltage
The reference voltage for setting the input switching threshold
L
) at the Output pin is 0 pF for all signal standards.
V
REF
1.25
1.25
0.9
0.9
-
-
-
-
-
-
-
-
-
-
-
-
-
(V)
V
V
V
V
V
V
V
V
V
V
V
V
ICM
ICM
ICM
ICM
REF
REF
ICM
REF
REF
ICM
ICM
ICM
Note 3
V
Inputs
L
- 0.125
- 0.125
- 0.125
- 0.125
0
0
0
0
- 0.75
- 0.75
- 0.75
(V)
- 0.3
- 0.1
- 0.5
- 0.5
- 0.5
www.xilinx.com
V
V
V
V
Spartan-3 FPGA Family: DC and Switching Characteristics
V
V
V
V
V
V
V
V
ICM
ICM
ICM
ICM
REF
REF
ICM
REF
REF
ICM
ICM
ICM
Note 3
V
H
1.8
2.5
3.3
3.3
+ 0.125
+ 0.125
+ 0.125
+ 0.125
+ 0.75
+ 0.75
+ 0.75
(V)
+ 0.3
+ 0.1
+ 0.5
+ 0.5
+ 0.5
Ω
when no parallel termination is required
R
N/A
T
1M
1M
1M
1M
1M
1M
1M
25
25
50
50
50
25
50
60
50
50
50
50
50
(Ω)
Outputs
V
1.25
1.25
1.25
1.25
N/A
T
3.3
0.9
0.9
0.6
1.2
1.2
1.2
1.8
0
0
0
0
0
0
0
0
(V)
Inputs and
Outputs
V
V
V
V
V
V
V
V
V
V
V
V
V
0.94
1.25
1.65
2.03
M
0.9
1.4
REF
REF
REF
REF
ICM
ICM
ICM
ICM
ICM
ICM
ICM
ICM
(V)
77