CV-51002
2015.12.04
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Differential HSTL and HSUL I/O Standards
VSWING(AC) (V)
VCCIO (V)
Typ
VSWING(DC) (V)
VX(AC) (V)
Typ
I/O Standard
Min
Max
Min
Max
Min
Max
Min
Max
(20)
SSTL-125
1.19
1.25
1.31
0.18
VCCIO/2 –
0.15
VCCIO/2
VCCIO/2 +
0.15
2(VIH(AC)
–
2(VIL(AC) – VREF)
VREF
)
Differential HSTL and HSUL I/O Standards
Table 18: Differential HSTL and HSUL I/O Standards for Cyclone V Devices
VCCIO (V)
Typ
VDIF(DC) (V)
VX(AC) (V)
Typ
VCM(DC) (V)
VDIF(AC) (V)
I/O Standard
Min
Max
Min
Max
Min
Max
Min
Typ
Max
Min
Max
HSTL-18 1.71
Class I, II
1.8
1.89
0.2
—
0.78
—
1.12
0.9
—
0.78
—
1.12
0.4
—
HSTL-15 1.425
Class I, II
1.5
1.2
1.2
1.575
1.26
1.3
0.2
—
0.68
—
—
0.68
—
0.9
0.4
0.3
—
HSTL-12 1.14
Class I, II
0.16
0.26
VCCIO
0.3
+
0.5 ×
0.4 ×
0.5 ×
0.6 ×
VCCIO + 0.48
0.44
VCCIO
VCCIO
VCCIO
VCCIO
HSUL-12 1.14
0.26
0.5 ×
VCCIO
0.12
0.5 ×
0.5 ×
VCCIO
0.12
0.4 ×
0.5 ×
0.6 ×
0.44
–
VCCIO
+
VCCIO
VCCIO
VCCIO
Cyclone V Device Datasheet
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