4-bit MCU Availability - Again

On Wednesday, June 22, 2022 at 10:23:08 AM UTC-4, three_jeeps wrote:
> On Saturday, June 11, 2022 at 2:12:10 PM UTC-4, Ricky wrote: 
> > So anyone have knowledge of truly low cost/low power MCU devices? I found this company. 
> > 
> > http://upt-ic.com/en/index.aspx 
> > 
> > They have a line of 4-bit MCUs. Can't find a way to get prices unless I call them. I expect that would not be very effective. 
> >
> > -- 
> > 
> > Rick C.
> > 
> > - Get 1,000 miles of free Supercharging
> > - Tesla referral code - https://ts.la/richard11209
> FWIW, TI recently announced a BT LE Arm Cortex-M0+ 32 bit CPU with price as low as $0.79 USD, CC2340. Standby current of < 700nA, 48MHz, and quite a number of peripherals and I/O. I'd imagine with an Arm architecture, it would go a long way to future-proofing the product. 
> J

The details of the CPU part of an MCU is actually the least important part of a chip when considering "future proofing".  It's much harder to deal with the peripherals and other I/O when changing chips, as they are very brand dependent. 

-- 

Rick C.

-++ Get 1,000 miles of free Supercharging
-++ Tesla referral code - https://ts.la/richard11209