EP3C5E144C8N Datasheet, PDF (291/348 Pages) Altera Corporation – Ability to disable external JTAG port

Chapter 1: Cyclone III Device Data Sheet
Electrical Characteristics
1–11
Table 1–14. Cyclone III Devices Single-Ended SSTL and HSTL I/O Reference Voltage Specifications ⁽¹⁾
I/O
V_CCIO (V)
Standard _{Min Typ Max}
Min
V_REF (V)
Typ
V_TT (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 * V_CCIO ⁽⁴⁾ 0.5 * V_CCIO ⁽⁴⁾ 0.53 * V_CCIO ⁽⁴⁾
Notes to Table 1–14:
(1) For an explanation of terms used in Table 1–14, refer to “Glossary” on page 1–27.
(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).
V_REF –
0.04
V_REF
V_REF –
0.04
V_REF
0.85
0.9
0.71
0.75
—
0.5 *
V_CCIO
Max
V_REF +
0.04
V_REF +
0.04
0.95
0.79
—
Table 1–15. Cyclone III Devices Single-Ended SSTL and HSTL I/O Standards Signal Specifications
I/O
V_IL(DC) (V)
Standard _{Min Max}
SSTL-2
Class I
—
V_REF –
0.18
SSTL-2
Class II
—
V_REF –
0.18
SSTL-18
Class I
—
V_REF –
0.125
SSTL-18
Class II
—
V_REF –
0.125
HSTL-18
Class I
—
V_REF –
0.1
HSTL-18
Class II
—
V_REF –
0.1
HSTL-15
Class I
—
V_REF –
0.1
HSTL-15
Class II
—
V_REF –
0.1
HSTL-12
Class I
–0.15
V_REF –
0.08
HSTL-12
Class II
–0.15
V_REF –
0.08
V_IH(DC) (V)
V_IL(AC) (V)
Min
Max
Min Max
V_REF +
0.18
—
—
V_REF –
0.35
V_REF +
0.18
—
—
V_REF –
0.35
V_REF +
0.125
—
—
V_REF –
0.25
V_REF +
0.125
—
—
V_REF –
0.25
V_REF +
0.1
—
—
V_REF –
0.2
V_REF +
0.1
—
—
V_REF –
0.2
V_REF +
0.1
—
—
V_REF –
0.2
V_REF +
0.1
V_REF +
0.08
V_REF +
0.08
—
—
V_CCIO + 0.15 –0.24
V_CCIO + 0.15 –0.24
V_REF –
0.2
V_REF –
0.15
V_REF –
0.15
V_IH(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
—
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
I_OH
(mA) (mA)
8.1 –8.1
16.4 –16.4
6.7 –6.7
13.4 –13.4
8 –8
16 –16
8 –8
16 –16
8 –8
14 –14
December 2011 Altera Corporation
Cyclone III Device Handbook
Volume 2