The 6502 is a dynamic CPU, the Z80 is a static one

Hallo allemaal,


I could lay my hands on an Hi-Lo ALL-03 universal programmer. Its 
interface is an ISA card so that limits the use of it. But.... all 
the info needed to write your own programs for it is available. 
(something my nice Elnec LabProg+ lacks) So the idea rose to use it 
for testing ICs like the 6526, 6522 etc.

But discussing it with a friend I wondered if I could test CPUs with 
it. Then I remembered that you cannot run the 6502 slower as +/- 300 
KHz because it will crash. The Z80 can be run at 1 MHz, if needed. 
The reason is that "the 6502 is dynamic" (IIRC). 

But what is so "dynamic" on the 6502? AFAIK it doesn't use 
capacitors like a DRAM. Better AFAIK it only uses transistors, 
something that has been proofed by this guy that built a 100% 
compatible 6502 using only transistors.

So what am I missing?


--
   
Kind regards / Met vriendelijke groet, Ruud Baltissen
www.Baltissen.org