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Technology Stocks : TAVA Technologies (TAVA-NASDAQ)
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To: Mike Winn who wrote (11760)2/20/1998 1:29:00 AM
From: Bonzo  Read Replies (1) of 31646
 
>> so TAVA identifies the non-compliant chip, let say it's a Z80, then
what? Do they just replace it with another chip, let say a M68332 or a
Intel 8051, then what? Do they unsolder the Z80 from the circuit board
and replace it with a 68332 or a 8051? <<

Mike the (Zilog) Z80 is a MicroProcessor. The (Intel) 8051 is a MicroController. The MicroProcessor (MPU) does not contain internal ROM so it would not (by itself) be a date sensitive component. The MicroController does contain internal ROM so it would have to be evaluated. Of course you could not swap any MCU for another. A new component, with the identical electrical characteristics (speed rating, revision, package type etc.) as the one being replaced, would have to be re-programmed (with date compliant code) from source. Of course memory availability (cell locations) may be a constraint.
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