AN240
Overview
- 3V OUTPUT 30% 2V
- 8V GND SV00084 Figure
- Switching Levels One issue remains: a 3V system driving a 5V one that has CMOS input levels. This cannot be reliably done by standard 3V logic families, even when using pull-up resistors, simply because under worst case conditions, the output voltage is not high enough to guarantee that the signal will be seen as a logical “1”. Philips Semiconductors developed special dual VCC levelshifters to address that situat
