Path: utzoo!utgpu!water!watmath!softart!ashok
From: ashok@softart.UUCP (Ashok C. Patel)
Newsgroups: comp.sys.ibm.pc
Subject: Re: 16450 compatible with 8250 ?
Message-ID: <31@softart.UUCP>
Date: 23 Dec 87 02:07:44 GMT
References: <436@wa3wbu.UUCP>
Organization: Softart Microsystems Inc., Waterloo Ont. Canada
Lines: 26

> 
>      I recently installed a serial card in my 8 Mhz AT that contains a
> 8250 chip. I've since ordered the second serial port for the card and I
> was sent a 16450 and associated chips. My question, is the 16450 plug
> compatible with the 8250 ?  Also what are the pros and cons of using the
> 8250 in an AT ?  I know I've seen many serial cards advertised as either
> "XT" or "AT" cards and the only difference appears to be the XT cards
> usually use the 8250 and the AT cards the 16450. Thanks.

From what I have been told, the 16450 is a fast 8250.  That is, that it
is the chip that *must* be used in an AT style machine.  It also fixes
bugs in the original 8250 silicon (so I have been told...any confirms?).
The 8250 works fine in an XT style machine.

> 
> 					John, WA3WBU
> 
> 
> -- 
> John Gayman, WA3WBU              |           UUCP: uunet!wa3wbu!john
> 1869 Valley Rd.                  |           ARPA: wa3wbu!john@uunet.UU.NET 
> Marysville, PA 17053             |           Packet: WA3WBU @ AK3P 

-------------------------
Ashok C. Patel
Softart Microsystems Inc.