EP1AGX ALTERA [Altera Corporation], EP1AGX Datasheet - Page 152

• Manufacturer Part Number: EP1AGX
• Description: Section I. Arria GX Device Data Sheet
• Manufacturer: ALTERA [Altera Corporation]

4–30
Table 4–45. Timing Measurement Methodology for Input Pins
Arria GX Device Handbook, Volume 1
LVTTL
LVCMOS
2.5 V
1.8 V
1.5 V
PCI
PCI-X
SSTL-2 Class I
SSTL-2 Class II
SSTL-18 Class I
SSTL-18 Class II
1.8-V HSTL Class I
1.8-V HSTL Class II
1.5-V HSTL Class I
1.5-V HSTL Class II
1.2-V HSTL with OCT
Differential SSTL-2 Class I
Differential SSTL-2 Class II
Differential SSTL-18 Class I
(6)
(5)
(5)
(5)
(6)
(5)
(5)
I/O Standard
Figure 4–9. Measurement Setup for t
Table 4–45
Din
Din
OE
OE
specifies the input timing measurement setup.
V
3.135
3.135
2.375
1.710
1.425
2.970
2.970
2.325
2.325
1.660
1.660
1.660
1.660
1.375
1.375
1.140
2.325
2.325
1.660
CCIO
(V)
Measurement Conditions
zx
t
t
1 MΩ
1 MΩ
ZX
V
ZX
1.163
1.163
0.830
0.830
0.830
0.830
0.688
0.688
0.570
1.163
1.163
0.830
REF
, Tristate to Driving High
Dout
Dout
, Tristate to Driving Low
(Note
—
—
—
—
—
—
—
(V)
Dout
Dout
1), (2), (3),
Din
Din
OE
OE
Disable
Disable
Edge Rate (ns)
3.135
3.135
2.375
1.710
1.425
2.970
2.970
2.325
2.325
1.660
1.660
1.660
1.660
1.375
1.375
1.140
2.325
2.325
1.660
(4)
Chapter 4: DC and Switching Characteristics
Enable
Enable
(Part 1 of 2)
½ V
½ V
© December 2009 Altera Corporation
CCINT
CCINT
t
t
zh
zl
Measurement Point
VMEAS (V)
1.5675
1.5675
1.1875
0.7125
1.1625
1.1625
0.6875
0.6875
1.1625
1.1625
0.855
1.485
1.485
0.570
0.83
0.83
0.83
0.83
0.83
½ V
½ V
“1”
“0”
CCIO
CCIO
I/O Timing Model