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EP3C25F256I7N Datasheet, PDF (11/34 Pages) Altera Corporation – Cyclone III Device Datasheet | |||
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Chapter 1: Cyclone III Device Datasheet
Electrical Characteristics
1â11
Table 1â14. Cyclone III Devices Single-Ended SSTL and HSTL I/O Reference Voltage Specifications (1)
I/O
VCCIO (V)
Standard Min Typ Max
Min
VREF (V)
Typ
VTT (V) (2)
Max
Min
Typ
SSTL-2
Class I, II
2.375 2.5 2.625
1.19
1.25
1.31
SSTL-18
Class I, II
1.7 1.8 1.9
0.833
0.9
0.969
HSTL-18
Class I, II
1.71 1.8 1.89
0.85
0.9
0.95
HSTL-15
Class I, II
1.425 1.5 1.575
0.71
0.75
0.79
HSTL-12
Class I, II
1.14 1.2 1.26 0.48 * VCCIO (3) 0.5 * VCCIO (3) 0.52 * VCCIO (3)
0.47 * VCCIO (4) 0.5 * VCCIO (4) 0.53 * VCCIO (4)
Notes to Table 1â14:
(1) For an explanation of terms used in Table 1â14, refer to âGlossaryâ on page 1â27.
(2) VTT of transmitting device must track VREF of the receiving device.
(3) Value shown refers to DC input reference voltage, VREF(DC).
(4) Value shown refers to AC input reference voltage, VREF(AC).
VREF â
0.04
VREF
VREF â
0.04
VREF
0.85
0.9
0.71
0.75
â
0.5 *
VCCIO
Max
VREF +
0.04
VREF +
0.04
0.95
0.79
â
Table 1â15. Cyclone III Devices Single-Ended SSTL and HSTL I/O Standards Signal Specifications
I/O
VIL(DC) (V)
Standard Min Max
SSTL-2
Class I
â
VREF â
0.18
SSTL-2
Class II
â
VREF â
0.18
SSTL-18
Class I
â
VREF â
0.125
SSTL-18
Class II
â
VREF â
0.125
HSTL-18
Class I
â
VREF â
0.1
HSTL-18
Class II
â
VREF â
0.1
HSTL-15
Class I
â
VREF â
0.1
HSTL-15
Class II
â
VREF â
0.1
HSTL-12
Class I
â0.15
VREF â
0.08
HSTL-12
Class II
â0.15
VREF â
0.08
VIH(DC) (V)
VIL(AC) (V)
Min
Max
Min Max
VREF +
0.18
â
â
VREF â
0.35
VREF +
0.18
â
â
VREF â
0.35
VREF +
0.125
â
â
VREF â
0.25
VREF +
0.125
â
â
VREF â
0.25
VREF +
0.1
â
â
VREF â
0.2
VREF +
0.1
â
â
VREF â
0.2
VREF +
0.1
â
â
VREF â
0.2
VREF +
0.1
VREF +
0.08
VREF +
0.08
â
â
VCCIO + 0.15 â0.24
VCCIO + 0.15 â0.24
VREF â
0.2
VREF â
0.15
VREF â
0.15
VIH(AC) (V)
Min
Max
VREF +
0.35
â
VREF +
0.35
â
VREF +
0.25
â
VREF +
0.25
â
VREF +
0.2
â
VREF +
0.2
â
VREF +
0.2
â
VREF +
0.2
VREF +
0.15
VREF +
0.15
â
VCCIO +
0.24
VCCIO +
0.24
VOL (V)
Max
VTT â
0.57
VTT â
0.76
VTT â
0.475
0.28
0.4
0.4
0.4
0.4
0.25 Ã
VCCIO
0.25 Ã
VCCIO
VOH (V)
Min
VTT +
0.57
VTT +
0.76
VTT +
0.475
VCCIO â
0.28
VCCIO â
0.4
VCCIO â
0.4
VCCIO â
0.4
VCCIO â
0.4
0.75 Ã
VCCIO
0.75 Ã
VCCIO
IOL
IOH
(mA) (mA)
8.1 â8.1
16.4 â16.4
6.7 â6.7
13.4 â13.4
8 â8
16 â16
8 â8
16 â16
8 â8
14 â14
July 2012 Altera Corporation
Cyclone III Device Handbook
Volume 2
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