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???
08/05/05 15:01
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#98872 - I do not have an answer, just a fact whi
Responding to: ???'s previous message
On the IAP description it seems possible to do a quick erase.

Is there any problem known on using quick erase ?

How long need a quick erase per block ?


I do not have an answer, just a fact which is that my BP programmer erases a 668 in about 5 seconds.

Is it possible that "quick erase" is only possible with a higher Vpp? I would guess so.

From the absolute maximum ratings:
Voltage on EA/VPP pin to VSS 0 to +13.0 V

Erik

List of 9 messages in thread
TopicAuthorDate
P89C668 Quick Erase ?            01/01/70 00:00      
   quick erase?            01/01/70 00:00      
      yes, AN461 and data sheet            01/01/70 00:00      
         osc. freq.            01/01/70 00:00      
            FM            01/01/70 00:00      
   I do not have an answer, just a fact whi            01/01/70 00:00      
      Did you set the frequency?            01/01/70 00:00      
         quick erase on Rx2 and 66x devices            01/01/70 00:00      
   sucess?            01/01/70 00:00      

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