Chapter 1: Cyclone III Device Datasheet
Electrical Characteristics
1–11
Table 1–14. Cyclone III Devices Single-Ended SSTL and HSTL I/O Reference Voltage Specifications
I/O
Standard
SSTL-2
Class I, II
SSTL-18
Class I, II
HSTL-18
Class I, II
HSTL-15
Class I, II
HSTL-12
Class I, II
V
CCIO
(V)
Min
2.375
1.7
1.71
1.425
1.14
Typ
2.5
1.8
1.8
1.5
1.2
Max
2.625
1.9
1.89
1.575
1.26
Min
1.19
0.833
0.85
0.71
0.48 * V
CCIO
0.47 * V
CCIO
V
REF
(V)
Typ
1.25
0.9
0.9
0.75
0.5 * V
CCIO
0.5 * V
CCIO
V
TT
(V)
Max
1.31
0.969
0.95
0.79
0.52 * V
CCIO
0.53 * V
CCIO
Min
V
REF
–
0.04
V
REF
–
0.04
0.85
0.71
—
Typ
V
REF
V
REF
0.9
0.75
0.5 *
V
CCIO
Max
V
REF
+
0.04
V
REF
+
0.04
0.95
0.79
—
Notes to
(1) For an explanation of terms used in
refer to
(2) V
TT
of transmitting device must track V
REF
of the receiving device.
(3) Value shown refers to DC input reference voltage, V
REF(DC)
.
(4) Value shown refers to AC input reference voltage, V
REF(AC)
.
Table 1–15. Cyclone III Devices Single-Ended SSTL and HSTL I/O Standards Signal Specifications
I/O
Standard
SSTL-2
Class I
SSTL-2
Class II
SSTL-18
Class I
SSTL-18
Class II
HSTL-18
Class I
HSTL-18
Class II
HSTL-15
Class I
HSTL-15
Class II
HSTL-12
Class I
HSTL-12
Class II
V
IL(DC)
(V)
Min
—
—
—
—
—
—
—
—
–0.15
–0.15
Max
V
REF
–
0.18
V
REF
–
0.18
V
REF
–
0.125
V
REF
–
0.125
V
REF
–
0.1
V
REF
–
0.1
V
REF
–
0.1
V
REF
–
0.1
V
REF
–
0.08
V
REF
–
0.08
Min
V
REF
+
0.18
V
REF
+
0.18
V
REF
+
0.125
V
REF
+
0.125
V
REF
+
0.1
V
REF
+
0.1
V
REF
+
0.1
V
REF
+
0.1
V
REF
+
0.08
V
REF
+
0.08
V
IH(DC)
(V)
Max
—
—
—
—
—
—
—
—
V
IL(AC)
(V)
Min
—
—
—
—
—
—
—
—
Max
V
REF
–
0.35
V
REF
–
0.35
V
REF
–
0.25
V
REF
–
0.25
V
REF
–
0.2
V
REF
–
0.2
V
REF
–
0.2
V
REF
–
0.2
V
REF
–
0.15
V
REF
–
0.15
Min
V
REF
+
0.35
V
REF
+
0.35
V
REF
+
0.25
V
REF
+
0.25
V
REF
+
0.2
V
REF
+
0.2
V
REF
+
0.2
V
REF
+
0.2
V
REF
+
0.15
V
REF
+
0.15
V
IH(AC)
(V)
Max
—
—
—
—
—
—
—
—
V
CCIO
+
0.24
V
CCIO
+
0.24
V
OL
(V)
Max
V
TT
–
0.57
V
TT
–
0.76
V
TT
–
0.475
0.28
0.4
0.4
0.4
0.4
0.25 ×
V
CCIO
0.25 ×
V
CCIO
V
OH
(V)
Min
V
TT
+
0.57
V
TT
+
0.76
V
TT
+
0.475
V
CCIO
–
0.28
V
CCIO
–
0.4
V
CCIO
–
0.4
V
CCIO
–
0.4
V
CCIO
–
0.4
0.75 ×
V
CCIO
0.75 ×
V
CCIO
I
OL
(mA)
8.1
16.4
6.7
13.4
8
16
8
16
8
14
I
OH
(mA)
–8.1
–16.4
–6.7
–13.4
–8
–16
–8
–16
–8
–14
V
CCIO
+ 0.15 –0.24
V
CCIO
+ 0.15 –0.24
July 2012
Altera Corporation
INTEL [ INTEL CORPORATION ]
