NEC V20 Chip

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chuckphd53
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NEC V20 Chip

Post by chuckphd53 »

The NEC V20 -10 chips are good

they give an instant increase in speed.... more they do not fool with the system clock timing and this is important
for the Joystick timing for games...

Others that have used it hopefully will weigh in...
“I never commit to memory anything that can easily be looked up in a book.” (AE)
RiverBoa99
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Re: NEC V20 Chip

Post by RiverBoa99 »

I think I ordered the wrong V20 chip. There's 5 MHZ, 8, and 10. And I want the 10, correct?
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chuckphd53
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Re: NEC V20 Chip

Post by chuckphd53 »

I believe the -10 is the right one..
but the 5 should work with the onboard MB crystal....
4.77MHz run freq. is derived from the 14.31818 MHz crystal..
so the -5 should handle this and you will see the advantage of the V20 architecture for speed...

but I believe most folks like the -10 to give a little head room...
“I never commit to memory anything that can easily be looked up in a book.” (AE)
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