XC2S50 Xilinx, Inc., XC2S50 Datasheet - Page 46

• Manufacturer Part Number: XC2S50
• Description: Spartan-II 2.5V FPGA Family
• Manufacturer: Xilinx, Inc.

GTL+
A sample circuit illustrating a valid termination technique for
GTL+ appears in
appear in
Table 20: GTL+ Voltage Specifications
DS001-2 (v2.2) September 3, 2003
Product Specification
Notes:
1.
V
V
V
V
V
V
V
I
I
I
OH
OL
OL
OH
OL
CCO
REF
TT
IH
IL
N must be greater than or equal to 0.653 and less than or
equal to 0.68.
≤ V
at V
at V
GTL+
≥ V
at V
V
= N × V
Parameter
REF
CCO
REF
OL
OL
OH
Table 20
– 0.1
(mA) at 0.6V
(mA) at 0.3V
= NA
R
(mA)
+ 0.1
Figure 42: Terminated GTL+
TT
50Ω
(1)
V
TT
.
Figure
= 1.5V
42. DC voltage specifications
0.88
1.35
0.98
Min
0.3
Z = 50
36
-
-
-
-
-
V
REF
= 1.0V
50Ω
V
TT
0.45
Typ
1.0
1.5
1.1
0.9
= 1.5V
-
-
-
-
-
DS001_43_061200
Max
1.12
1.65
1.02
0.6
48
-
-
-
-
-
www.xilinx.com
1-800-255-7778
HSTL Class I
A sample circuit illustrating a valid termination technique for
HSTL_I appears in
appear in
Table 21: HSTL Class I Voltage Specification
V
V
V
V
V
V
V
I
I
OH
OL
OH
OL
CCO
REF
TT
IH
IL
Spartan-II 2.5V FPGA Family: Functional Description
Parameter
at V
at V
HSTL Class I
V
CCO
OL
OH
Table
Figure 43: Terminated HSTL Class I
(mA)
(mA)
= 1.5V
21.
V
V
CCO
REF
Figure
1.40
0.68
Min
–8
8
-
-
+ 0.1
– 0.4
Z = 50
43. DC voltage specifications
V
REF
V
CCO
= 0.75V
1.50
0.75
Typ
V
50Ω
TT
-
-
-
-
-
× 0.5
= 0.75V
DS001_44_061200
V
Module 2 of 4
REF
Max
1.60
0.90
0.4
-
-
-
-
-
– 0.1
39