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**82498/493   Cache Controller / Cache RAM (for P54 Pentium)    <Nov94
***Notes:...
***Info:...
***Configurations:...
***Features:...
**
**Later chipsets (basic spec):
**440 series:...
**450NX  (?)            06/29/98:...
**?????  (Profusion)    c:99...
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**Notes:
You eventually get  to know when a  board is made by PC  Chips just by
looking at it.
 
Here is a test:
1.  No manufacture name, or one of the above.
2.  If the board has a lots of components that sound like a well known 
    part but aren't the well known part. i.e. 'HX Pro' instead of 
    '430HX'
3a. A really good feature set where you think, that's exactly what I'm 
    looking for.
 b. The features don't really work as intended. 
4.  The price is fantastic.
5.  Its disappointing on closer examination.

PC Chips is  renowned for making crap products. Some  are actually not
too bad, they're no worse than  your average brand. However some are a
nightmare either by design or  just poorly made. Fake components glued
on is not  uncommon. Fake labels over other components.  PCB's so thin
they require low insertion force ISA connectors, every trick to save a
few $.

**Early Chipsets:...
**Later Chipsets:...
*SIS...
*Symphony...
*TI (Texas Instruments)...
*UMC...
**UM82C852     Multi I/O For XT                                    <91
***Info:
The  Multi-I/O  chip, UM82C852  is  an  integrated  chip of  UM82C450,
UM82C11, UM82C8167. This  chip is a Multi-I/O for  PC/XT and PS2 model
30.

The   82C450  asynchronous   communications  element   (ACE)  performs
serial-to-parallel  conversion   on  data  characters   received  from
peripheral  devices or  modems, and  parallel-to-serial  conversion of
data characters transmitted by the CPU. The complete status of the ACE
can  be read  at  any time  during  functional operation  by CPU.  The
information obtained  includes the type and condition  of the transfer
operations being performed and error conditions.

The  82C11  parallel  port  provides  the user  with  a  bidirectional
parallel data  port that fully  supports the parallel  Centronics type
printer.

The 82C8167 real time clock includes an addressable real time counter,
56 bits  of static RAM with  an on chip oscillation  circuit which can
generate the 32,768 Hz time base.

The 82C852 is packaged in a 68-pin plastic leaded chip carrier.
***Versions:...
***Features:...
**UM82C206     Integrated Peripheral Controller                    <91...
**UM82c45x     Serial/Parallel chips                                 ?...
**Other chips:
***Video:...
***Disk:...
***Peripheral:...
***Other:...
*Unresearched:...
*VIA...
*VLSI...
*Western Digital...
*Winbond...
*ZyMOS...
*General Sources:...