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EP3SL50F780C4 Datasheet, PDF (44/341 Pages) Altera Corporation – Stratix III Device Handbook | |||
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1â34
Chapter 1: Stratix III Device Datasheet: DC and Switching Characteristics
I/O Timing
Table 1â37. Output Timing Measurement Methodology for Output Pins (Part 1 of 3)
I/O Standard
Loading and Termination
Measurement
Point
RS
RD
RT
RP
VCCIO
VCCPD
VCC
VTT
CL (pF)
VMEAS (v)
3.3-V LVTTL
â
â
â
â 3.135 3.135 1.05 â
0
1.5675
3.3-V LVCMOS
â
â
â
â 3.135 3.135 1.05 â
0
1.5675
3.0-V LVTTL
â
â
â
â 2.85 2.85 1.05 â
0
1.425
3.0-V LVCMOS
â
â
â
â 2.85 2.85 1.05 â
0
1.425
2.5-V
â
â
â
â 2.375 2.375 1.05 â
0
1.1875
1.8-V
â
â
â
â 1.71 2.375 1.05 â
0
0.855
1.5-V
â
â
â
â 1.425 2.375 1.05 â
0
0.7125
1.2-V
â
â
â
â 1.14 2.375 1.05 â
0
0.57
PCI
â
â
â
â 2.85 2.85 1.05 â
10
1.425
PCI-X
â
â
â
â 2.85 2.85 1.05 â
10
1.425
SSTL-2 CLASS I
25
â
50
â 2.325 2.325 1.02 1.25
0
1.1625
SSTL-2 CLASS II
25
â
25
â 2.325 2.325 1.02 1.25
0
1.1625
SSTL-18 CLASS I
25
â
50
â 1.66 2.325 1.02 0.90
0
0.83
SSTL-18 CLASS II
25
â
25
â 1.66 2.325 1.02 0.90
0
0.83
SSTL-15 CLASS I
25
â
50
â 1.375 2.325 1.02 0.75
0
0.6875
SSTL-15 CLASS II
25
â
25
â 1.375 2.325 1.02 0.75
0
0.6875
1.8-V HSTL CLASS I â
â
50
â 1.66 2.325 1.02 0.90
0
0.83
1.8-V HSTL
CLASS II
â
â
25
â 1.66 2.325 1.02 0.90
0
0.83
1.5-V HSTL CLASS I â
â
50
â 1.375 2.325 1.02 0.75
0
0.6875
1.5-V HSTL
CLASS II
â
â
25
â 1.375 2.325 1.02 0.75
0
0.6875
1.2-V HSTL CLASS I â
â
50
â 1.09 2.325 1.02 0.60
0
0.545
1.2-V HSTL
CLASS II
â
â
25
â 1.09 2.325 1.02 0.60
0
0.545
Differential SSTL-2
CLASS I
25
â
50
â 2.325 2.325 1.02 1.25
0
1.1625
Differential SSTL-2
CLASS II
25
â
25
â 2.325 2.325 1.02 1.25
0
1.1625
Differential SSTL-18
CLASS I
25
â
50
â 1.66 2.325 1.02 0.90
0
0.83
Differential SSTL-18
CLASS II
25
â
25
â 1.66 2.325 1.02 0.90
0
0.83
1.8-V Differential
HSTL CLASS I
â
â
50
â 1.66 2.325 1.02 0.90
0
0.83
1.8-V Differential
HSTL CLASS II
â
â
25
â 1.66 2.325 1.02 0.90
0
0.83
1.5-V Differential
HSTL CLASS I
â
â
50
â 1.375 2.325 1.02 0.75
0
0.6875
Stratix III Device Handbook, Volume 2
© July 2010 Altera Corporation
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