On Jun 29 13:54 96, Lewin Edwards of 3:634/396 wrote:

LE>>> OTP EPROM (One-Time-Programming) for sure. It's a normal EPROM but it
LE>>> is in a plastic case with no window so can't be erased. Very commonly
LE>>> used in modern equipment, for some weird reason, perhaps
they're cheaper.
RS>> Aint no perhaps about its, significantly cheaper.

LE> Why significantly cheaper ? I've never bought OTP devices. But it's the 
LE> same device in a different case.

OTP is plastic molded, at a packaging cost of a cent or two.  Erasable is
in Ceramic case, with Quartz window, at packaging cost of over a dollar -
both to the IC manufacturer.   Multiply by the usual markup percentages,
and you get the message.

When and if it finally happens in the correct form factors and price range,
flash chips will blow EPROM away like they never were, just driven by
economics.  Nobody likes OTP.

Regards,
Dave Hatch.

--- Msgedsq 3.20