EP2C8T144C8N Datasheet, PDF (110/470 Pages) Altera Corporation – Cyclone II Device Handbook, Volume 1

Operating Conditions
Table 5–6. Recommended Operating Conditions for User I/O Pins Using Single-Ended I/O Standards
Note (1) (Part 2 of 2)
I/O Standard
V_CCIO (V)
Min Typ Max
V_REF (V)
Min Typ Max
V_IL (V)
Max
V_IH (V)
Min
SSTL-18 class II 1.7
1.8
1.9 0.833 0.9 0.969 V_{R E F} – 0.125 (DC) V_{R E F} + 0.125 (DC)
V_{R E F} – 0.25 (AC) V_{R E F} + 0.25 (AC)
1.8-V HSTL
class I
1.71 1.8 1.89 0.85 0.9 0.95 V_{R E F} – 0.1 (DC) V_{R E F} + 0.1 (DC)
V_{R E F} – 0.2 (AC) V_{R E F} + 0.2 (AC)
1.8-V HSTL
class II
1.71 1.8 1.89 0.85 0.9 0.95 V_{R E F} – 0.1 (DC) V_{R E F} + 0.1 (DC)
V_{R E F} – 0.2 (AC) V_{R E F} + 0.2 (AC)
1.5-V HSTL
class I
1.425 1.5 1.575 0.71 0.75 0.79 V_{R E F} – 0.1 (DC) V_{R E F} + 0.1 (DC)
V_{R E F} – 0.2 (AC) V_{R E F} + 0.2 (AC)
1.5-V HSTL
class II
1.425 1.5 1.575 0.71 0.75 0.79 V_{R E F} – 0.1 (DC) V_{R E F} + 0.1 (DC)
V_{R E F} – 0.2 (AC) V_{R E F} + 0.2 (AC)
Note to Table 5–6:
(1) Nominal values (Nom) are for T_A = 25° C, V_CCINT = 1.2 V, and V_CCIO = 1.5, 1.8, 2.5, and 3.3 V.
Table 5–7. DC Characteristics of User I/O Pins Using Single-Ended Standards Notes (1), (2) (Part 1 of 2)
I/O Standard
3.3-V LVTTL
3.3-V LVCMOS
2.5-V LVTTL and
LVCMOS
1.8-V LVTTL and
LVCMOS
1.5-V LVTTL and
LVCMOS
PCI and 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
Test Conditions
I_OL (mA)
4
0.1
1
I_OH (mA)
–4
–0.1
–1
2
–2
2
–2
1.5
–0.5
8.1
–8.1
16.4
–16.4
6.7
–6.7
13.4
–13.4
8
–8
16
–16
Voltage Thresholds
Maximum V_OL (V)
0.45
0.2
0.4
Minimum V_OH (V)
2.4
V_{C C I O} – 0.2
2.0
0.45
0.25 × V_{C C I O}
0.1 × V_{C C I O}
V_TT – 0.57
V_TT – 0.76
V_TT – 0.475
0.28
0.4
0.4
V_{C C I O} – 0.45
0.75 × V_{C C I O}
0.9 × V_{C C I O}
V_TT + 0.57
V_TT + 0.76
V_TT + 0.475
V_{C C I O} – 0.28
V_{C C I O} – 0.4
V_{C C I O} – 0.4
5–6
Cyclone II Device Handbook, Volume 1
Altera Corporation
February 2008