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Does anyone know of any (reasonably low-cost) SoC which combines all of:

  • Microcontroller (any architecture, at least 4KB RAM/8KB flash)
  • Radio transceiver (433MHz - 915MHz or 2.4GHz)
  • Ethernet MAC + PHY

(For a wireless sensor application - connecting to low power sensor nodes)

I can find examples of micros with either peripheral, but not both:

Eg.

Micro + ethernet:

LM3S9B9x = ARM Cortex-M3 + Ethernet MAC and PHY

PIC18F66J6x = PIC18 + Ethernet MAC and PHY

Micro + radio:

CC430 = MSP430 + Sub-1GHz radio

EM250 = XAP2b + 802.15.4/ZigBee

Please only answer this question if you can name a chip.

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2  
I could give you a good example of two chips that would accomplish this but I know of none that do both. – Michael Eakins Oct 27 '10 at 13:42
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Wow, big bounty, I wish I had an answer. – Kellenjb Nov 1 '10 at 14:37
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@Kellenjb I wish I had an answer too – Toby Jaffey Nov 1 '10 at 14:43
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Maybe I should pull some strings with a friend at TI and have them post a fake part that is the CC430 with ethernet built in. – Kellenjb Nov 1 '10 at 14:46
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low power radio AND ethernet seems an odd combination. I don't think it's something that's common enough that there would be profit to be made to build a generic off the shelf part which combines them both. Pretty much any complex device is going to have multiple ICs in it, it's not something to avoid at all costs. – davr Nov 3 '10 at 4:56
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3 Answers

up vote 5 down vote
+225

The MediaTek RT3050 has what you need.

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Interesting, I really hadn't considered wifi - as I'm looking to connect with low power sensor nodes – Toby Jaffey Nov 1 '10 at 14:57
Ah, I didn't read carefully enough. – Shawn J. Goff Nov 1 '10 at 15:46
up vote 0 down vote

Not really a chip, but would a Digi ConnectPort be a turnkey solution for what you have in mind? You can run custom software (Python) on them to manage your wireless devices and communicate over Ethernet.

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Interesting device, but not what I'm looking for – Toby Jaffey Nov 4 '10 at 17:20
up vote 2 down vote

Both together I've never seen.

ST has STM32W that integrates a 2.4GHz transceiver and Freescale has MC1322x that integrates ARM7/Coldfire with 2.4GHz transceivers, but both don't have the ethernet PHY.

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Both good chips, but they aren't what I'm looking for – Toby Jaffey Nov 4 '10 at 17:43

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