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Ixiasoft
Single-Ended I/O Standard Specifications
Single-Ended SSTL and HSTL I/O Reference Voltage Specifications
Single-Ended SSTL and HSTL I/O Standards Signal Specifications
Differential SSTL I/O Standard Specifications
Differential HSTL I/O Standard Specifications
Differential I/O Standard Specifications
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Ixiasoft
Single-Ended I/O Standard Specifications
I/O Standard | VCCIO (V) | VIL (V) | VIH (V) | VOL (V) | VOH (V) | IOL (mA) 25 |
IOH (mA) 25 |
||||
---|---|---|---|---|---|---|---|---|---|---|---|
Min | Typ | Max | Min | Max | Min | Max | Max | Min | |||
3.3-V LVTTL | 3.135 | 3.3 | 3.465 | — | 0.8 | 1.7 | 3.6 | 0.45 | 2.4 | 4 | –4 |
3.3-V LVCMOS | 3.135 | 3.3 | 3.465 | — | 0.8 | 1.7 | 3.6 | 0.2 | VCCIO – 0.2 | 2 | –2 |
3.0-V LVTTL | 2.85 | 3.0 | 3.15 | –0.3 | 0.8 | 1.7 | VCCIO + 0.3 | 0.45 | 2.4 | 4 | –4 |
3.0-V LVCMOS | 2.85 | 3.0 | 3.15 | –0.3 | 0.8 | 1.7 | VCCIO + 0.3 | 0.2 | VCCIO – 0.2 | 0.1 | –0.1 |
2.5 V | 2.375 | 2.5 | 2.625 | –0.3 | 0.7 | 1.7 | VCCIO + 0.3 | 0.4 | 2.0 | 1 | –1 |
1.8 V | 1.71 | 1.8 | 1.89 | –0.3 | 0.35 × VCCIO | 0.65 × VCCIO | 2.25 | 0.45 | VCCIO – 0.45 | 2 | –2 |
1.5 V | 1.425 | 1.5 | 1.575 | –0.3 | 0.35 × VCCIO | 0.65 × VCCIO | VCCIO + 0.3 | 0.25 × VCCIO | 0.75 × VCCIO | 2 | –2 |
1.2 V | 1.14 | 1.2 | 1.26 | –0.3 | 0.35 x VCCIO | 0.65 x VCCIO | VCCIO + 0.3 | 0.25 x VCCIO | 0.75 x VCCIO | 2 | –2 |
3.0-V PCI | 2.85 | 3.0 | 3.15 | — | 0.3 × VCCIO | 0.5 × VCCIO | VCCIO + 0.3 | 0.1 × VCCIO | 0.9 × VCCIO | 1.5 | –0.5 |
3.0-V PCI-X | 2.85 | 3.0 | 3.15 | — | 0.35 × VCCIO | 0.5 × VCCIO | VCCIO + 0.3 | 0.1 × VCCIO | 0.9 × VCCIO | 1.5 | –0.5 |
Related Information
25 To meet the IOL and IOH specifications, you must set the current strength settings accordingly. For example, to meet the 3.3-V LVTTL specification (4 mA), set the current strength settings to 4 mA or higher. Setting at lower current strength may not meet the IOL and IOH specifications in the handbook.