Posted on June 27, 2003 at 15:00I decided to use DTR to enable a ST662A charge pump via a transistor buffer. I am building up a breadboard and will test it.

Posted on June 24, 2003 at 18:17My ST7 application needs to be reprogrammed via RS232 and a PC. (using a Maxim MAX3323E). I am looking at ways to get the 11.4-12.6V Vpp. I was thinking about using DTR (Data Terminal Ready) from the PC as a programmi...