> Curious ... I haven't used, nor seen any reference to programmers
> for OTP devices.  I guess UV is needed to erase, but what about
> programming?

Programming, and programmers, are identical.

An OTP (One Time Programmable) device is the UV-erasable die in
a less expensive, non-windowed package.  It's ready to program.
Since there's no way to erase it (*), it can be programmed once.

The same die, when mounted in a more expensive ceramic package
with a UV-transparent window, becomes a multiple-use erasable
and reprogramable part.
                                                Lee Jones

(*) occasionally there are threads on the PIC list about using
    X-rays (see friendly dentist) to erase OTP devices instead
    of buying the more expensive reusable, windowed devices.

--
http://www.piclist.com hint: The list server can filter out subtopics
(like ads or off topics) for you. See http://www.piclist.com/#topics