Multiple serial ports

[DSGarcia]

I was looking at a few past posts on the subject but I still have some questions for my particular application.

The short question is: are there alternatives to the MAXIM 3100 (nice features: FIFO buffer, serial interface between the chip and the PIC, low pin count, simple)? When I ordered other MAXIM parts in the past, it was a hassle and a long wait for the parts. I would rather use something off-the-shelf stocked in the US.

I have the following requirements:
1 high-speed output data stream (as fast as it will work)
1 high-speed input data stream (as fast as I can listen)
1 low-speed input data stream (9600 BAUD max)
1 low-speed bi-directional datastream (9600 BAUD)

The high-speed streams will have a maxium distance of 30 meters (100 feet), but I can use any drivers/receivers I want.

The low-speed ports must be RS-232.

None of the serial ports will use handshake lines, just one transmit and/or one receive line.

Any suggestions?

Thanks,
Dale

 

[3v0]

Got to OCTOPART.com and search for "uart SPI interface"
It looks like Newark and Digi-Key has the Maxim3100.

If you do the same search on Mouser you there seems to be some NXP parts that may work. You did not say anything about packages.

 

[DSGarcia]

3V0,
Thanks for the advice. I didn't know the Maxim parts were available from Nwk and DK. The last couple of Maxim part numbers I used were only available through Maxim--the distributors had part numbers listed, but non-stocked.

As far as package, I would like to prototype with dip, but for production, I would like the smallest surface-mount solution possible.

Thanks,
Dale