Query :: project on Microcontroller PIC 16f876

[vikas_et]

16f876 project

I was designing PIC microcontroller based LCD oscilloscope
PIC 16f876 & HD44780 LCD . i had changed my PIC 16f876A.IT will be compatible or not. i want to know is thereany difference between these two PIC.plz its urgent

 

[xxtigerxx]

16f876 possible projects

there is not many difference..

the only differeence is the 16f876a has better electronics..

all the memory are the same...


so you do not have any problem..

 

[ravimarcus]

adc of 16f876

I was designing PIC microcontroller based LCD oscilloscope
PIC 16f876 & HD44780 LCD . i had changed my PIC 16f876A.IT will be compatible or not. i want to know is thereany difference between these two PIC.plz its urgent

In 16F876, port A conmtains ADC only where as in 16F876A, port A contains ADC & COMPARATORS. Program memory write is 1 byte on 16F876 and 4 bytes in 16F876A

Cheers

Ravi

 

[BeeBop]

migrating 16f876

Hi Vikas
There is a document which details the differences between these two chips. See:
https://ww1.microchip.com/downloads/en/DeviceDoc/39591a.pdf
From that doc:

Except for items listed in Table 1, PIC16F87XA is designed to be pin-to-pin, and functionally compatible with the
PIC16F87X product family. Table 1 shows the considerations that must be taken into account when migrating from the
PIC16F87X to the PIC16F87XA. Table 2 shows the electrical and timing differences.

Have a look at it, I think you will find it useful.
Regards,
Robert