??? 07/10/10 17:04 Read: times |
#177219 - why Responding to: ???'s previous message |
this first has to be converted to the 0v-5v logic level (for which, i designed a level shifter)
WHY? HCT chips do this admirable for 3V3 level to 5V level, for 5V to 3V3 NXP, TI, .... has oodles and bunches of chips, for instance http://ics.nxp.com/products/levelshifters/all/ Erik |