Recommend me a PIC from 18f series with 2 or 3 UART's on board

[Kaleborg]

Hello.

Can anybody recommend a PIC from 18f series with 2 or 3 UART's on board??

Regards

 

[wp100]

Re: 3x UART on pic

Hi,

If you do a Parametric search on Microchips site it details all such chips for you.

Not aware of any with 3 hardware usarts, but it is possible if the third one is software coded instead of the internal hardware ones.

**broken link removed**

 

[FvM]

3x UART on pic

Some newer (mostly 3.3V supply) PIC18 have two UARTS, none has three. If you need more than two hardware UARTS, go for PIC24.

 

[amraldo]

Re: 3x UART on pic

Check the list at https://www.microchip.com/ParamChartSearch/chart.aspx?branchID=8099&mid=14&lang=en&pageId=75
You will find PIC chips with 4 UARTS.
--
Amr Ali

 

[kender]

3x UART on pic

Kaleborg,

Do you need to receive on all UARTs? If one of your serial streams is transmit-only, it can be bit-banged.

There are also external UART chips. For example SC16IS740 made by NXP. It has it's own FIFO and it interfaces to the PIC through I2C or SPI.

- Nick

 

[Kaleborg]

Re: 3x UART on pic

Hello.
Thanks for the response.

In my project i'm gonna have 2x 18f1330 which has only UART and one other pic from 18f family as a main micro. So i think that two uarts will be enough cause i was thinking about putting them both on one UART an then use one extra pin to select one or the other. So that leaves me with one remaining UART for the wireless module.

And i think i'm gonna go with 18f6622 as the main micro

Regards

 

[a_zhu13]

Re: 3x UART on pic

Maybe there are two ways can arrive:
1. Simulate the UART through common I/O.
2. The extend UART chip such as SP2327. I have the PDF reference in chinese. Please find the attachment for application diagram