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EP2S15 Datasheet, PDF (142/238 Pages) Altera Corporation – Stratix II Device Family | |||
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Operating Conditions
Table 5â8. 1.8-V I/O Specifications
Symbol
Parameter
Conditions
Minimum Maximum Unit
VCCIO (1)
VI H
VIL
VOH
VOL
Output supply voltage
High-level input voltage
Low-level input voltage
High-level output voltage
Low-level output voltage
IOH = â2 mA (2)
IOL = 2 mA (2)
1.71
1.89
V
0.65 Ã VCCIO
2.25
V
â0.30
0.35 Ã VCCIO V
VCCIO â 0.45
V
0.45
V
Notes to Table 5â8:
(1) The Stratix II device familyâs VC CI O voltage level support of 1.8 ± -5% is narrower than defined in the Normal
Range of the EIA/JEDEC standard.
(2) This specification is supported across all the programmable drive settings available for this I/O standard as shown
in the Stratix II Architecture chapter in volume 1 of the Stratix II Device Handbook.
Table 5â9. 1.5-V I/O Specifications
Symbol
Parameter
Conditions
Minimum Maximum Unit
VCCIO (1)
VI H
VIL
VOH
VOL
Output supply voltage
High-level input voltage
Low-level input voltage
High-level output voltage
Low-level output voltage
IOH = â2 mA (2)
IOL = 2 mA (2)
1.425
1.575
V
0.65 Ã VCCIO VCCIO + 0.30 V
â0.30
0.35 Ã VCCIO V
0.75 Ã VCCIO
V
0.25 Ã VCCIO V
Notes to Table 5â9:
(1) The Stratix II device familyâs VC CI O voltage level support of 1.5 ± -5% is narrower than defined in the Normal
Range of the EIA/JEDEC standard.
(2) This specification is supported across all the programmable drive settings available for this I/O standard as shown
in the Stratix II Architecture chapter in volume 1 of the Stratix II Device Handbook.
Figures 5â1 and 5â2 show receiver input and transmitter output
waveforms, respectively, for all differential I/O standards (LVDS,
LVPECL, and HyperTransport technology).
5â6
Stratix II Device Handbook, Volume 1
Altera Corporation
May 2007
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