EP2S180F1508I4 Datasheet, PDF (142/238 Pages) Altera Corporation – Section I. Stratix II Device Family Data Sheet

Operating Conditions
Table 5–8. 1.8-V I/O Specifications
Symbol
Parameter
Conditions
Minimum Maximum Unit
V_CCIO (1)
V_{I H}
V_IL
V_OH
V_OL
Output supply voltage
High-level input voltage
Low-level input voltage
High-level output voltage
Low-level output voltage
I_OH = –2 mA (2)
I_OL = 2 mA (2)
1.71
1.89
V
0.65 × V_CCIO
2.25
V
–0.30
0.35 × V_CCIO V
V_CCIO – 0.45
V
0.45
V
Notes to Table 5–8:
(1) The Stratix II device family’s V_{C 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 5–9. 1.5-V I/O Specifications
Symbol
Parameter
Conditions
Minimum Maximum Unit
V_CCIO (1)
V_{I H}
V_IL
V_OH
V_OL
Output supply voltage
High-level input voltage
Low-level input voltage
High-level output voltage
Low-level output voltage
I_OH = –2 mA (2)
I_OL = 2 mA (2)
1.425
1.575
V
0.65 × V_CCIO V_CCIO + 0.30 V
–0.30
0.35 × V_CCIO V
0.75 × V_CCIO
V
0.25 × V_CCIO V
Notes to Table 5–9:
(1) The Stratix II device family’s V_{C 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 5–1 and 5–2 show receiver input and transmitter output
waveforms, respectively, for all differential I/O standards (LVDS,
LVPECL, and HyperTransport technology).
5–6
Stratix II Device Handbook, Volume 1
Altera Corporation
April 2011