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Differences between 16f84a and 16f84.

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myanm

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Hi everybody!
I'd like to know the differences between 16f84a and 16f84. And what is Ghost location? Pls do me a favour.
Thanks in advance
 

eng_ahmed22

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Re: how different...

Salam
The A-type has a maximum oscillator frequency of 20 MHz (instead of 10 MHz).
There are some small timing differences, of which the most important seems to be: MCLR low puls width, erase/program cycle time.
see this table:

this link contains the details about the fifferences between the 16f84 and 16f84AA

https://ww1.microchip.com/downloads/en/DeviceDoc/30072b.pdf
hope that help u
Salam
Ahmed
 

myanm

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16f84 and 16f84a.....

hi hi!
Thanks a lot ,eng_ahmed22. I come to realize how different bet: 16f84 and 16f84a. But I can not apply it yet. Can the program work correctly if I burn the 16f84a with the program of 16f84? What is the Ghost location? Pls tell me.
Thanks in advance.
 

waseem_426

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Re: how different...

hi guys,
my name is wasim and iam newly joined memeber in this group plz post the topics on atmel 89c51
 

eng_ahmed22

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Re: 16f84 and 16f84a.....

myanm said:
hi hi!
Can the program work correctly if I burn the 16f84a with the program of 16f84?

HI myanm
i think it will be no problems. try and u will know. and then tell me :)
best regards
:D

Ahmed
 

silvio

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Re: 16f84 and 16f84a.....

myanm said:
Can the program work correctly if I burn the 16f84a with the program of 16f84?

This guy is sharing from his experience regarding the right combination of the PIC-type, the programmer (hardware) and the programming software.
https://oase.uci.kun.nl/~mientki/pic/picprog/picprogrammer_hardware1.html
Take a look at his software page concerning, among other design consideration, to write/erase cycle time and Microchip official answer.
https://oase.uci.kun.nl/~mientki/pic/picprog/picprogrammer_software.html

myanm said:
What is the Ghost location?

Excuse my ignorance, but where did you heard about ghost location ?
 

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