2.3.2.1 Summary of I/O DC Input and Output Levels – Default I/O Software Settings
(Ask a Question)I/O Standard | Drive Strgth. | Slew Rate | VIL | VIH | VOL | VOH | IOL1 | IOH1 | ||
---|---|---|---|---|---|---|---|---|---|---|
Min. V | Max. V | Min. V | Max. V | Max. V | Min. V | mA | mA | |||
3.3V LVTTL / 3.3V LVCMOS | 12 mA | High | –0.3 | 0.8 | 2 | 3.6 | 0.4 | 2.4 | 12 | 12 |
2.5V LVCMOS | 12 mA | High | –0.3 | 0.7 | 1.7 | 3.6 | 0.7 | 1.7 | 12 | 12 |
1.8V LVCMOS | 12 mA | High | –0.3 | 0.35 * VCCxxxxIOBx | 0.65 * VCCxxxxIOBx | 3.6 | 0.45 | VCCxxxxIOBx – 0.45 | 12 | 12 |
1.5V LVCMOS | 12 mA | High | –0.3 | 0.35 * VCCxxxxIOBx | 0.65 * VCCxxxxIOBx | 3.6 | 0.25 * VCCxxxxIOBx | 0.75 * VCCxxxxIOBx | 12 | 12 |
3.3V PCI | Per PCI specifications | |||||||||
3.3V PCI-X | Per PCI-X specifications |
Note:
- Currents are measured at 125 °C junction temperature.
- Output slew rate can be extracted by the IBIS Models.
I/O Standard | Drive Strgth. | Slew Rate | VIL | VIH | VOL | VOH | IOL1 | IOH1 | ||
---|---|---|---|---|---|---|---|---|---|---|
Min. V | Max. V | Min. V | Max. V | Max. V | Min. V | mA | mA | |||
3.3V LVTTL / 3.3V LVCMOS | 8 mA | High | –0.3 | 0.8 | 2 | 3.6 | 0.4 | 2.4 | 8 | 8 |
2.5V LVCMOS | 8 mA | High | –0.3 | 0.7 | 1.7 | 3.6 | 0.7 | 1.7 | 8 | 8 |
1.8V LVCMOS | 4 mA | High | –0.3 | 0.35 * VCCxxxxIOBx | 0.65 * VCCxxxxIOBx | 3.6 | 0.45 | VCCxxxxIOBx – 0.45 | 4 | 4 |
1.5V LVCMOS | 2 mA | High | –0.3 | 0.35 * VCCxxxxIOBx | 0.65 * VCCxxxxIOBx | 3.6 | 0.25 * VCCxxxxIOBx | 0.75 * VCCxxxxIOBx | 2 | 2 |
Note:
- Currents are measured at 125 °C junction temperature.
- Output slew rate can be extracted by the IBIS Models.
DC I/O Standards | Military1 | |
---|---|---|
IIL | IIH | |
µA | µA | |
3.3V LVTTL/3.3V LVCMOS | 15 | 15 |
2.5V LVCMOS | 15 | 15 |
1.8V LVCMOS | 15 | 15 |
1.5V LVCMOS | 15 | 15 |
3.3V PCI | 15 | 15 |
3.3V PCI-X | 15 | 15 |
Note:
- Military temperature Range: –55 °C to 125 °C.