RF abd PIC schematic(good link)

Wireless & IoT
21

Yes, I have done something similar with an MSP430.

Leon

22

TNX allot for all the help guys. Much appriciated

23

leon_heller:
Sorry, I’m used to other PICs like the 16F88 that are specified down to 2 V operation.

Leon

Watch out, Leon. The 16LF88 is good down to 2V, but the 16F88 is only spec’d to 4V. Unless you meant the 16F628, which is also good to 2V.

Mike

24

upand_at_them:

leon_heller:
Sorry, I’m used to other PICs like the 16F88 that are specified down to 2 V operation.

Leon

Watch out, Leon. The 16LF88 is good down to 2V, but the 16F88 is only spec’d to 4V. Unless you meant the 16F628, which is also good to 2V.

Mike

Yes, you are right, I’d forgotten that. I’m actually running a 16F88 at 3.3 V and 7.3728 MHz at the moment, in a prototype. It’s working OK. I’d already decided to use a 16F690 for the production version because it has a couple more I/Os, which will be OK at 3.3 V.

Leon

25

If you check out the datasheet for the 16F877A, it is only rated down to 4V. However, you could always get the 16LF877A, which is good down to 2V, but has a max clock frequency of 10 MHz @ 3.3V (check p. 174 of http://ww1.microchip.com/downloads/en/D … 39582b.pdf).