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EP3SL50 Datasheet, PDF (21/341 Pages) Altera Corporation – Stratix III Device Handbook, Volume 2 | |||
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Chapter 1: Stratix III Device Datasheet: DC and Switching Characteristics
Electrical Characteristics
1â11
Table 1â15. Single-Ended SSTL and HSTL I/O Standards Signal Specifications (Note 1) (Part 2 of 2)
I/O
Standard
VIL(DC) (V)
Min
Max
VIH(DC) (V)
Min
Max
VIL(AC) (V)
Max
VIH(AC) (V)
Min
VOL (V)
Max
VOH (V)
Min
IOL IOH
(mA) (mA)
HSTL-12
CLASS II
-0.15 VREF -0.08 VREF +0.08 VCCIO + 0.15 VREF -0.15 VREF + 0.15 0.25* VCCIO 0.75 * VCCIO 16 -16
Note to Table 1â15:
(1) Use the current strength settings that are equal or larger than the IOL and IOH values listed to meet the VOL and VOH specifications for each line.
OCT or lower current strengths may provide better signal integrity and lower power.
Refer to the figures for âDifferential I/O Standardsâ in âGlossaryâ on page 1â326 for
the receiver input and transmitter output waveforms, and for all the differential I/O
standards (LVDS, mini-LVDS, RSDS). VCC_CLKIN is the power supply for the differential
column clock input pins. VCCPD is the power supply for the row I/Os and all other
column I/Os.
Table 1â16. Differential SSTL I/O Standard Specifications
I/O
VCCIO (V)
V (V) SWING (DC)
VX (AC) (V)
Standard Min Typ Max Min Max Min Typ
Max
SSTL-2
CLASS I, II
2.375
2.5
2.625
0.3
VCCIO
+ 0.6
VCCIO/2
- 0.2
â
SSTL-18
CLASS I, II
1.71
1.8
1.89
0.25
VCCIO
+ 0.6
VCCIO/2
-0.175
â
SSTL-15
CLASS I, II
1.425
1.5
1.575
0.2
â
â
VCCIO/2
VCCIO/2
+ 0.2
VCCIO/2
+ 0.175
â
V (V) SWING(AC)
Min Max
0.62
VCCIO
+ 0.6
0.5
VCCIO
+ 0.6
VOX (AC) (V)
Min Typ Max
VCCIO/2
- 0.15
â
VCCIO/2 +
0.15
VCCIO/2
â
VCCIO/2
-0.125
+0.125
0.35 â
â
VCCIO/2
â
Table 1â17. Differential HSTL I/O Standards Specifications
I/O Standard
HSTL-18
CLASS I, II
HSTL-15
CLASS I, II
HSTL-12
CLASS I, II
VCCIO (V)
VDIF(DC) (V)
Min Typ Max Min Max
1.71 1.8 1.89 0.2 â
1.425 1.5 1.575 0.2 â
1.14 1.2 1.26 0.16 VCCIO
+ 0.3
Min
0.78
0.68
â
VX(AC) (V)
Typ
â
â
0.5* VCCIO
Max
1.12
0.9
â
Min
0.78
VCM(DC) (V)
Typ
â
0.68
â
0.4* VCCIO 0.5* VCCIO
Max
1.12
0.9
0.6* VCCIO
VDIF(AC) (V)
Min Max
0.4 â
0.4 â
0.3
VCCIO
+ 0.48
Table 1â18. Differential I/O Standard Specifications (Part 1 of 2)
I/O
Standard
2.5 V LVDS
(Row I/O)
VCCIO (V)
VID (V) (1)
Min Typ Max Min Condition Max Min
2.375 2.5 2.625 0.1 VCM = 1.25
2.375 2.5 2.625 0.1 VCM = 1.25
â
0.05
(6)
â
1.05
(6)
VICM(DC) (V)
Condition
Dmaxï ï£ 700
Mbps
D > max 700
Mbps
VOD (V) (2)
Max Min Typ Max
1.8
(6)
0.247 â
0.6
1.55
(6)
0.247
â
0.6
VOCM (V) (2)
Min Typ Max
1.125 1.25 1.375
1.125 1.25 1.375
© July 2010 Altera Corporation
Stratix III Device Handbook, Volume 2
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