Gerard Mantoux wrote:

> After encapsulation, the good chips are selected according to their
> speed capability. ... All the production is tested until the required
> number of chips 100% functional at 10MHz is obtained,

> This process is true for PC processors !

  My question however is ... how do you test OTP microprocessors without
programming them?

  (Aside:  They are *only* OTP after encapsulation, could be tested by
programming as die and subsequently erased but - I don't think so!)
--
  Cheers,
        Paul B.