Does anyone know of a 4 port serial MCU?

Hi,

I am just starting to look for a 4 port MCU for a new project.

I have only found the Renesas M32R 32174 Group device.

Are there any others out there?

Your help is appreciated

Ian

Reply to
EarthedSolutions
Loading thread data ...

Atmel has several in their 32-bit ARM based controllers. see:

formatting link

Also in their AVR32 line:

formatting link

And even some in their 8-bit AVR:

formatting link

And some of the NXP ARM7's (which they call 16-bit controllers):

formatting link
|pp=[t=pfp,i=45994] (hope that works)

And there are others, just look at the manufacturer's selection guide, parametric table or whatever they call their list of controllers.

--
Stef    (remove caps, dashes and .invalid from e-mail address to reply by mail)

A prediction is worth twenty explanations.
 Click to see the full signature
Reply to
Stef

formatting link

formatting link

formatting link

Alternatively, if other features of the MCU wind up dominating your need in things, a quad UART could be implemented pretty easily in a tiny CPLD for $2ish or FPGA for $6ish.

--
Rob Gaddi, Highland Technology
Email address is currently out of order
Reply to
Rob Gaddi

Thanks for your help.

Reply to
EarthedSolutions

Their M32C group also has 4+ serial ports.

Reply to
DJ Delorie

Try the P8X32A Propeller. It's available in QFP44 or DIP40! and it has zero serial ports in hardware. But with eight 32-bit cores or cogs there are a quite a number of serial port objects in the public object exchange that can implement up to 4 smart "UARTS" per core. I say smart because each cog can handle the protocol and buffering etc. I frequently run multiple high-speed "UARTS" plus I demo'd a no-glue one-chip solution today running a mouse and playing space invaders on the TV complete with music and sound effects while it was handling multiple serial communications ports and protocols without any kind of latencies or glitches. I have done AVR, ARM, Renesas etc and I haven't looked back since this chip.

The chip is available for around $11 in one off quantities.

*Peter*

EarthedSoluti> Hi,

Reply to
Peter Jakacki

The XMOS chips can have umpteen serial ports implemented in software:

formatting link

Leon

Reply to
Leon

512 PIN BGA!!! (Multilayer pcbs = expensive prototypes) $31 each for pre-production engineering samples only 144 pin BGA $21 - but no more stock till January (maybe)

120ma quiescent!!! (wait till it runs)

Nice chip Leon if you really want that big a grunt. I might have uses for it but not for run of the mill designs though. Even then I'd wait quite a bit before using this for any production design as it is early silicon.

*Peter*
Reply to
Peter Jakacki

The core supply (1.0 V) actually takes about 1.25A with all four cores running and the XLInks communicating at maximum capacity! They can get a bit warm - I can't keep my finger on the chip even if it is just flashing an LED. It's just as well that they are rated for 125C operation. A lower power version will be available.

They already have several large design wins. The 512BGA part is $10 in quantity. The single-core chip will be $1.

The 144BGA chip can be put on a four-layer board. The single core device will be available in QFN.

The (free) tools are quite good.

Leon

Reply to
Leon

ElectronDepot website is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.