Peter van Hoof wrote: > > Yup there is ... 16cr84 > Oh well. Such is life. I nearly turned a JW 74 chip into an OTP just now. I put it in the programmer the wrong way around and it started sending smoke signals. The chip survived somehow, but it destroyed a component in the power switching circuitry on the programmer board. With all the talk lately on reversed biassed transistors lately, I expected to see a light show coming out of the little window :-) Hey, I thought the early 74's could have the code protect undone. I accidently programmed the code protect fuse and it refuses to erase :-( -- Best regards Tony 'The Engine' - Design your own programmer. http://www.picnpoke.com Email picnpoke@cdi.com.au