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
Also in their AVR32 line:
http://www.atmel.com/dyn/products/param_table.asp?family_id=682&OrderBy=part_no&Direction=ASC
And even some in their 8-bit AVR:
http://www.atmel.com/dyn/products/param_table.asp?family_id=607&OrderBy=part_no&Direction=ASC
And some of the NXP ARM7's (which they call 16-bit controllers):
http://www.nxp.com/#/ps/ps=[i=45994]|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.
-- K. Brecher
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
Their M32C group also has 4+ serial ports.
The chip is available for around $11 in one off quantities.
*Peter*
The XMOS chips can have umpteen serial ports implemented in software:
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*
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