Depending on quantity, ROM version is still cheaper than an OTP. When they
produce a custom mask, usually it's less than a full memory chip and they
increase the production, allowing a cost save about 5-20%. Of course it
works only if you do not have a program that uses the full memory.

Marcelo

Terry wrote:

>Sort-of....
>
>Get a GOOD vendor who will pay the up-front cost, order the initial run,
>and prorate the expense into the cost of the parts. Then, it's just value
>added expenses... ie, $0.15/$0.20 per device.
>
>
>At 06:02 PM 11/24/99 -0200, you wrote:
>>You have to pay about US$2000 to Microchip as MASK production and buy
10000
>>pieces in a year.
>>
>>Marcelo