Introduction - If you have any usage issues, please Google them yourself
STC series single-chip internal AD Application STC89LE52AD, 54AD, 58AD, 516AD that several 89 series of STC has its own single-chip 8-way internal 8-bit AD converter, the distribution of P1 at the mouth of 8 on, when the bell At 40MHz below, every 17 machine cycles to be completed by an AD converter.