Input Timing Characteristics
Input Timing Characteristics
Non-isolated Input Performance (measured at Vcc = 5 V, Rext = 1 kΩ)
Parameter | Symbol | Non-isolated |
---|---|---|
Input Low Voltage | VL | 0.85 V |
Input High Voltage | VH | 4.94 V |
Input Threshold High Voltage | VTHH | 4.54 V |
Input Threshold Low Voltage | VTHL | 1.26 V |
Cycle Rise Time | tR | 10.8 μs |
Cycle Fall Time | tF | 2 μs |
Current | 4.1 mA |
Opto-isolated Input Performance (Vcc = varying pk-pk)
Parameter | Symbol | Opto-isolated 5 V, 1 kΩ |
Opto-isolated 3 V, 200 Ω |
---|---|---|---|
Input Low Voltage | VIL | ≤ 1.96 V | ≤ 2 V |
Input High Voltage | VIH | ≥ 2 V | ≥ 2.05 V |
Propagation Delay Low to High | tPDLH | 20.9 μs | 19.7 μs |
Propagation Delay High to Low | tPDHL | 5.6 μs | 16.7 μs |
Typical Positive Pulse Width | tMPPW | 12 μs | 12 μs |
Typical Negative Pulse Width | tMNPW | 6 μs | 6 μs |