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TINA/Spice: Logic functions, D, XOR, Time delay

Colin Gillmor
Mastermind 25570 points
Other Parts Discussed in Thread: TINA-TI

Tool/software: TINA-TI or Spice Models

Hi

I need a simple functional model for some logic functions - D type flip flop, XOR gate and a time delay (I need to be able to set delays from 100ns to 5us .

It would be nice too, if there was a square wave generator with a settable duty cycle (about 0.5%) - I'm using a Pattern Generator for that at present, it works but it's a bit of a kludge.

I haven't seen anything in the TINA libraries so is there a way I can implement these functions. I'm not worried about rise times, fall times and so on, just simple 1s and 0s will do nicely.

Thanks

Colin