PIC16F877A - maximum analog input speed

[Usman-ali]

What is the maximum analog input speed of PIC16F877A in seconds .
For example: Arduino has max speed of 0.0001s

 

[betwixt]

It is described in section 11.1 of the data sheet. The actual top speed depends on several things but note in particular the maximum source impedance at the ADC input pin. Most people overlook it and get poor results.

Brian.

 

[Aussie Susan]

That is quite an old device (although it is still 'in production'). There are newer and faster devices available (e.g. PIC16F18877).
If you are using this chip for fun and just because you have one then fair enough. If you are designing a new product then go for a better chip.
Susan

 

[ldicdican]

That is quite an old device (although it is still 'in production'). There are newer and faster devices available (e.g. PIC16F18877).
If you are using this chip for fun and just because you have one then fair enough. If you are designing a new product then go for a better chip.
Susan

Just like me, I have a lot of 18F452 and I wanna make it productive today, any idea of what projects should I start? I'm using CCS C and PicKit 3.

Thanks!

 

[Aussie Susan]

It is usually considered 'bad form' to highjack a thread'.
Having said that, no one can properly answer that question as it really comes down to your circumstances, interests, funds......
Your MCU is even older than the OPs and is not recommended for new designs. It has about 1.5K of RAM although 16K of FLASH.
Perhaps look to some IOT or basic data logging functions where you (say) read an I2C sensor and pass the data to something via SPI or the UART.
Just keep it very simple.
Susan

 

[ldicdican]

Sorry for high jacking this thread, will keep this in mind not to do it again. Thanks for your advices.