Matt/Joep A result!!
Changed the CLK resistor network to 1k/2.2k (didn’t have 2k don’t ask why) Assuming PIC output level of 5V, divider would give 3.44V (ish) which was within 23k256 spec of Vcc (3.3V ) + 0.3V max. input. Obtained perfect results no problems reading/writing large byte values. - yippee!! Showed that 23k256 had not appeared to have suffered any damage from my fumbling. Think I will stop there and call a halt on the 74HTC08 alternative method for now. Looks as though comment by Joep "larger current faster signals" did the trick. Where would one look on the 23k256 data sheet to assess the clock current sensitivity? If you find out why will you let me know? Thanks for help with this Kind Regards Dave -- You received this message because you are subscribed to the Google Groups "jallib" group. To view this discussion on the web visit https://groups.google.com/d/msg/jallib/-/eA8MlKwUm30J. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/jallib?hl=en.
