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EP3C5E144C8N Datasheet, PDF (325/348 Pages) Altera Corporation – Ability to disable external JTAG port | |||
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Chapter 2: Cyclone III LS Device Data Sheet
Electrical Characteristics
2â11
Table 2â14. Cyclone III LS Devices Single-Ended SSTL and HSTL I/O Reference Voltage Specifications (4)
I/O
VCCIO (V)
Standard Min Typ Max
Min
SSTL-2
Class I, II
2.375
2.5
2.625
1.19
SSTL-18
Class I, II
1.7
1.8
1.9
0.833
HSTL-18
Class I, II
1.71
1.8
1.89
0.85
HSTL-15
Class I, II
1.425
1.5
1.575
0.71
0.48 * VCCIO
HSTL-12
Class I, II
1.14
1.2
(1)
1.26
0.47 * VCCIO
(2)
VREF (V)
Typ
Max
1.25
1.31
0.9
0.969
0.9
0.95
0.75
0.79
0.5 * VCCIO (1) 0.52 * VCCIO (1)
0.5 * VCCIO (2) 0.53 * VCCIO (2)
Min
VREF â
0.04
VREF â
0.04
0.85
VTT (V) (3)
Typ
VREF
VREF
0.9
0.71
0.75
â
0.5 *
VCCIO
Notes to Table 2â14:
(1) The value shown refers to the DC input reference voltage, VREF(DC).
(2) The value shown refers to the AC input reference voltage, VREF(AC).
(3) VTT of the transmitting device must track VREF of the receiving device.
(4) For an explanation of the terms used in Table 2â14, refer to âGlossaryâ on page 2â26.
Max
VREF +
0.04
VREF +
0.04
0.95
0.79
â
Table 2â15. Cyclone III LS Devices Single-Ended SSTL and HSTL I/O Standards Signal Specifications
I/O
Standard
VIL(DC) (V)
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
VREF +
0.18
â
VREF +
0.125
â
VREF +
0.125
â
â
VREF â
0.35
â
VREF â
0.35
â
VREF â
0.25
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
VREF +
0.1
VREF +
0.08
â
â
â
â
VCCIO + 0.15 â0.24
VREF â
0.2
VREF â
0.2
VREF â
0.15
VREF +
0.08
VCCIO + 0.15 â0.24
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
VREF +
0.2
VREF +
0.15
â
â
VCCIO +
0.24
VREF +
0.15
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
December 2011 Altera Corporation
Cyclone III Device Handbook
Volume 2
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