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by bjt2n3904
1654 days ago
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Ooo... That RC divider on the PPS concerns me. All the money was put into making that edge right on the money, and reliably so. I'm not sure that guarantee will hold out when run through a load. Warming the resistor or capacitor, for example, should change the time constant enough to be noticable. I've had lots of luck with 74LVC series ICs as logic level translators from 5V to 3.3V. I can do a little nosing around to see if they can handle 400 ns pulses, but they should handle just great. |
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