EP3C25F256I7N Datasheet, PDF (12/34 Pages) Altera Corporation – Cyclone III Device Datasheet

1–12
Chapter 1: Cyclone III Device Datasheet
Electrical Characteristics
f For more illustrations of receiver input and transmitter output waveforms, and for
other differential I/O standards, refer to the High-Speed Differential Interfaces in
Cyclone III Devices chapter.
Table 1–16. Cyclone III Devices Differential SSTL I/O Standard Specifications ⁽¹⁾
I/O Standard
V_CCIO (V)
V_Swing(DC) (V)
V_X(AC) (V)
Min Typ Max Min Max
Min
Typ
SSTL-2
Class I, II
2.375 2.5 2.625 0.36 V_CCIO V_CCIO/2 – 0.2 —
SSTL-18
Class I, II
1.7
1.8 1.90 0.25 V_CCIO
V_CCIO/2 –
0.175
—
Note to Table 1–16:
(1) Differential SSTL requires a V_REF input.
Max
V_CCIO/2
+ 0.2
V_CCIO/2
+ 0.175
V_Swing(AC)
(V)
Min Max
0.7 ^VCCI
O
0.5 ^VCCI
O
V_OX(AC) (V)
Min
V_CCIO/2 –
0.125
V_CCIO/2 –
0.125
Typ Max
—
V_CCIO/2
+ 0.125
—
V_CCIO/2
+ 0.125
Table 1–17. Cyclone III Devices Differential HSTL I/O Standard Specifications ⁽¹⁾
I/O Standard
V_CCIO (V)
Min Typ Max
V_DIF(DC) (V)
Min Max
V_X(AC) (V)
Min
Typ Max
HSTL-18
Class I, II
1.71 1.8 1.89 0.2 —
0.85
—
HSTL-15
Class I, II
1.425 1.5 1.575 0.2 —
0.71
—
HSTL-12
Class I, II
1.14 1.2 1.26 0.16 V_CCIO 0.48 * V_CCIO —
Note to Table 1–17:
(1) Differential HSTL requires a V_REF input.
0.95
0.79
0.52 *
V_CCIO
V_CM(DC) (V)
Min Typ Max
0.85 — 0.95
V_DIF(AC) (V)
Mi
n
Max
0.4 —
0.71 — 0.79 0.4 —
0.48 *
V_CCIO
—
0.52 *
V_CCIO
0.3
0.48 *
V_CCIO
Table 1–18. Cyclone III Devices Differential I/O Standard Specifications ⁽¹⁾ (Part 1 of 2)
I/O
Standard
V_CCIO (V)
Min Typ Max
V_ID (mV)
Min Max Min
V_IcM (V) ⁽²⁾
Condition
V_OD (mV) ⁽³⁾
Max Min Typ Max
V_OS (V) ⁽³⁾
Min Typ Max
LVPECL
(Row I/Os) 2.375 2.5 2.625 100
(4)
LVPECL
(Column
I/Os) ⁽⁴⁾
2.375 2.5 2.625 100
LVDS (Row
I/Os)
2.375
2.5 2.625
100
0.05 D_MAX500 Mbps 1.80
—
0.55
500 Mbps  D_MAX
 700 Mbps
1.80
—
—
—
—
—
—
1.05 D_MAX > 700 Mbps 1.55
0.05 D_MAX 500 Mbps 1.80
—
0.55
500 Mbps  D_MAX
700 Mbps
1.80
—
—
—
—
—
—
1.05 D_MAX > 700 Mbps 1.55
0.05 D_MAX 500 Mbps 1.80
—
0.55
500 Mbps  D_MAX
 700 Mbps
1.80 247
—
600 1.125 1.25 1.375
1.05 D_MAX > 700 Mbps 1.55
Cyclone III Device Handbook
Volume 2
July 2012 Altera Corporation