Neil,

As far as I can tell, there is no such thing as a PIC16C74 any more, it is
being subbed with the PIC16C74A.

I have used them and they seem to work just fine, but I am using a Needham's
EMP-20 programmer.

Perhaps you should look for a software upgrade for your programmer.

Cheers, Bob

>Microchip just sent me 2 samples of a windowsed version of the PIC16C74.
>I requested the 16C74 yet they sent 16C74A which have the Brown-out
>detector circuit on-chip. I am currently using a PIC-1A programmer from ITU.
>These new PICs seem to program properely. Upon verification by the
>ITU software, the code verrifies to be correct. But when placing
>them in circuit, they simply do not work at all. They seem to be
>stuck in a permanent reset mode. Even disabling the watchdog timer
>doesn't help. I did note that the configuration word of these two PICS
>are different. I did take this into consideration. I made sure to keep the
>Brown-out reset module disabled. I also did trials experimenting with PWRTE
>either enabled or disabled. I made sure I was writing the proper configuration
>word, by checking the actual hex word, before the itu software writes
>the configuration. Still no luck.
>
>Neil Gandler
>
>