Author Topic: mcu price !!!  (Read 6391 times)

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Offline Jeroen3

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Re: mcu price !!!
« Reply #25 on: October 13, 2016, 07:25:36 am »
st and nxp and atmel make cortex-m4 and cortex-m7 microcontroller
price >6$
and at this price i can buy cortex-a8 1ghz + sdram  chips
why they manufacturing cortex-m4 and cortex-m7 at this price and i can buy high performance cortex-a8 1ghz cpu at same price ????
Cheapest Active A7 I can find in digikey is 5$ per 1k. Excluding memory. (MCIMX6G)
Cheapest M4 I can find is 2.5$ per 1k. (LPC54101) Which has internal memories.

They're both BGA, since that second best package in terms of pricing. (chip scale being the best, basically bga without epoxy)
 

Offline JS

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Re: mcu price !!!
« Reply #26 on: October 13, 2016, 09:46:56 pm »
usually sourced from rejected A-brand chips
Ok, so what you are saying is that you can potentially assemble something from trash, that costs the same as Cortex-M7 MCU from DigiKey. If you want to do that - go ahead, but count me out.

That! Are we seriously discussing this?

JS
If I don't know how it works, I prefer not to turn it on.
 

Offline ali_asadzadeh

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Re: mcu price !!!
« Reply #27 on: October 14, 2016, 07:41:52 am »
When there is demand for something it would be stupid not to sell at the highest price possible! So it's the demand for these Cortex M3-M7 devices that would determine their higher prices. and if you yourself had the silicon fab you would try your best to sell them as high as possible.  >:D
You can order parts from www.ASiDesigner.com
we are a wire-based company
 

Offline ebclr

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Re: mcu price !!!
« Reply #28 on: October 14, 2016, 07:55:35 am »
Fully loaded board 20 bucks

 

Offline Kjelt

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Re: mcu price !!!
« Reply #29 on: October 14, 2016, 07:57:31 am »
Then there is the support, if you look at the higher frequency higher powered arm cores you see there are NDA's non existing datasheets/ref manuals for anyone else.
Those chips are for mass producers that take quantities around 100's of k's per year and they get their own product manager/ service engineer contact to help develop the products.
If you are a small company/ single person that wants freely available datasheets/ref manuals then you have little choice.
Still I think the pricing quoted is not representative for the real world prices you pay when negotiating. The truth can not (always) be googled.  ;)

 

Offline zapta

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Re: mcu price !!!
« Reply #30 on: October 14, 2016, 11:40:38 am »
ARM M3, Wifi + antenna, 512K Ram, 1M Flash,  $2.7 shipped in quantity of 10.

https://www.pine64.org/?product=padi-iot-stamp
Drain the swamp.
 

Online NANDBlog

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Re: mcu price !!!
« Reply #31 on: October 14, 2016, 12:58:19 pm »
but cortex-m4 will cost 6$  in 5pc minimum quantity
Cortex M4 is free for 5pc.
Dont confuse digikey pricing with the real world pricing.
 


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