Hi, I need use a MCU with 2 serial ports ( must ), very very small
package and at least 4/8 Kbytes Flash/OPT. Can anybody recommend any to
me?

<r_malerba@hotmail.com> wrote in message
news:1116608719.738448.293050@g14g2000cwa.googlegr oups.com...

Philips LPC2106?

Leon
--
Leon Heller
http://www.geocities.com/leon_heller

In article <1116608719.738448.293050@g14g2000cwa.googlegroups .com>,
r_malerba@hotmail.com <r_malerba@hotmail.com> wrote:
Take a look at the Ubicom IP2022:

http://www.ubicom.com/processors/ip2000-family.htm

================= GPS based time synchronization solutions =================
Patrick Klos Email: patrick@timegeeks.com
Klos Technologies, Inc. Web: http://www.timegeeks.com/
==== I don't think infinity is as big as it seems - P.Klos, 20-Mar-2005 ====

<r_malerba@hotmail.com> skrev i meddelandet
news:1116608719.738448.293050@g14g2000cwa.googlegr oups.com...
ATmega162
7 x 7 mm package (QFN-44).
2 x UART
16 kB Flash
1 kB SRAM

If you go to the 5 x 5 mm QFN-32 you need to do an UART emulation using
maybe an SPI
since you only have one H/W UART.


--
Best Regards,
Ulf Samuelsson
This is intended to be my personal opinion which may,
or may bot be shared by my employer Atmel Nordic AB

On 20 May 2005 10:05:19 -0700, the renowned "r_malerba@hotmail.com"
<r_malerba@hotmail.com> wrote:

In Microchip's line, there are a few dsPIC members that have dual
UARTs in a QFN44 (and one in an SOIC-28). All have plenty of Flash &
RAM.

Jim G. should be around any minute now to enumerate all the 8051
variants that have dual UARTs.


Best regards,
Spehro Pefhany
--
"it's the network..." "The Journey is the reward"
speff@interlog.com Info for manufacturers: http://www.trexon.com
Embedded software/hardware/analog Info for designers: http://www.speff.com

Check out the Freescale line (Motorola). The 9hcs08gt16 is a good part.
16K memory for the price of 4K and many periphials. It also uses BDM
interface, very easy. Also you can use a free version of metrowerks
codewarrior with the part.

r_malerba@hotmail.com wrote:

"r_malerba@hotmail.com" wrote:

PSOC
PIC17 something
SiLab 8052

Spehro Pefhany wrote:

Not many that also meet the 'very very small package'.

Generally, 4/8K code and small are OK, but 2 uarts is
the realm of larger code sizes/more pin devices.

The SiLabs C8051F330 family, is 20 pins and MLF20, & would have the SW
muscle to do the second UART in SW.
The PCA can be used to assist in SW uart design, both on TX and RX.

-jg

r_malerba@hotmail.com wrote:
What sort of speeds are you running at? If the uarts are running fairly
slow compared to the clock rate, or your cpu has little else to do, then
you could use software uarts. Getting past about 9600 baud requires
some thought (or a fast clock), but software uarts will let you use the
smallest possible micros.

AT89S2052, simple

Deni wrote:
Err, there is no S2052 ?

Probably you mean one of :

AT89S2051/89S4051 = ISP versions of AT89C2051, SPI is for ISP only.
They are relatively slow, with /6 clocking

AT89LP2052/4052 = New 1 cycle cores from Atmel, just sampling.
20 MIPS. 256 Ram.
These have better SPI and UART, so is probably the smallest/cheapest
device with which you could make a SPI-nUART bridge. TSSOP20.

When this is fuly available, it will be a natural choice for
serious SPI-UART extensions to larger devices, allowing as many uarts
as you want - indicated price is less than a ~MAX202 interface device.

In the camp of "Smallest SPI+UART" there are also the
Philips LPC913/LPC914, Slower, less Code/Ram, but in TSSOP14.

-jg

"Jim Granville" <no.spam@designtools.co.nz> wrote in message
news:428fa313$1@clear.net.nz...
Microchip have had several small (14-18 pins) FLASH devices with UARTs for several
years now. The newer 14-18 pin devices are worth a look.

As a previous poster mentioned, there is a DSPIC in 28 pins with 2 UARTs.
Without more application information all we can fire back are specs rather than
advice.

-Andrew M

<r_malerba@hotmail.com> wrote in message
news:1116608719.738448.293050@g14g2000cwa.googlegr oups.com...
Quite a few of TI's MSP430 range, JTAG programming is handy.

Zilog Z8 Encore! (8 bits 20Mhz Max)
Philips LPC21xx (32 bits 60Mhz Max)

r_malerba@hotmail.com wrote:
Renesas R8C/13 and others from R8C/1x line.

You haven't specified how small is small. The Cypress PSoC comes as small
as an 8 pin in DIP and a 20 pin in SOIC or SSOP. You also don't sa
whether you need any other functions.

The PSoC is different to most other micros in that it has digital block
and analog blocks and you can create the peripherals that you need using
very simple design environment. You can easily have 2 UARTs or even more
plus any number of combinations of timers, AtoD, DtoA, Instrument Amps
PGAs, filters etc. etc.




This message was sent using the comp.arch.embedded web interface o
www.EmbeddedRelated.com

Do you have open source code that does that ? Sounds great !

Toni.

Toni,
Sorry for the delay. I am having trouble posting on this forum. I hop
this message gets through.

There is no open source code to do this. What you need is PSoC Designe
4.2 which you can download for free from the Cypress web site here
http://www.cypress.com/portal/server...Drivers&next=0

There is another product called PSoC Express which is supposed to mak
things even easier, but the reports that I have seen suggest that it i
still in its infancy and has much room for improvement.

You will find some pre-recorded on-line training modules here
http://www.cypress.com/portal/server...205&PageID=387

There is also a user forum, app notes and tech support. The user foru
suffered a lot recently during recent website modifications and you ma
find you prefer http://www.psocdeveloper.com/old/ . it too has som
additional information especially this thread for beginners:
http://www.psocdeveloper.com/forums/...9 2b6fc53142a

-Aubrey



This message was sent using the comp.arch.embedded web interface o
www.EmbeddedRelated.com

There is a new article on the PSoC in the latest Circuit Cellat that i
also available on line

http://www.circuitcellar.com/library...y169/index.htm

-Aubrey



This message was sent using the comp.arch.embedded web interface o
www.EmbeddedRelated.com