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*AMD . . . . . . . [no datasheets, some info]...
**AMD 640/645     (Pentium Based on VIA VT82C590) [some info]      c97
640=VT82C595
645=VT82C586B

The  Shuttle  HOT-603 is  the  only  known  motherboard with  the  640
chipset.

There may be another version known  as the 640AGP with AGP support. It
is difficult to determine if this ever existed.

Various sources  state the  AMD 640  is the same  as the  VIA VT82C590
(VP2) chip set. However no first-hand source (datasheet, etc) has been
found. YMMV

**Later Chipsets:
AMD 750    751/756 Athlon   Slot/Socket A 100FSB  AGP 2x  c99
AMD 760    761/766 AthlonXP Socket A      133FSB  AGP 4x  c00
AMD 760MP  762/766 AthlonMP Socket A      133FSB  AGP 4x  c01
AMD 760MPX 762/768 AthlonMP Socket A      133FSB  AGP 4x  c01

*Chips & Technologies...
*Contaq  . . . . . [no datasheets, some info]...
*Efar Microsystems [no datasheets, some info]...
*ETEQ...
*Faraday...
*Forex . . . . . . [List only, no datasheets found]...
*Intel...
**82497/492   Cache Controller / Cache RAM (for P54 Pentium)    <Nov94
***Notes:
Date source: 1995_Intel_Pentium_Processors_and_Related_Components.pdf

Information taken from: 
            1995_Intel_Pentium_Processors_and_Related_Components.pdf*
                                         8249x Cache controllers.pdf**
>*  Datasheet dated Nov'94
>** Datasheet undated, whole document dated '95

The info and features section have  been solely sourced from the first
source.   The  second source  provides  far  more detail.   Additional
information in the configurations section  and below have been sourced
from the second.

"Although the 82497 Cache Controller  is part of the Pentium processor
(735\90, 815\100, 1000\120, 1110\133) CPU-Cache Chip Set and the 82496
Cache  Controller is part  of the  Pentium Processor  (510\60, 567\66)
Chip  Set, the  two parts  are functionally  identical except  for the
differences noted in this section." - p491

Aside  from some  minor  differences in  pin  configuration, the  main
difference is the direct support  for 3.3V processors. This chipset is
still a 5V part. The cache operates at bus speed, max 66MHz.


This  chip was  used on  the Pentium  90MHz CPU  complexes of  Intel's
Xpress  platform.   Specifically  the BXCPUPENT90  (Single  90MHz,  16
82492s). Also found on IBM 9595/Server 500 Pentium 90MHz complexes.

***Info:...
***Configurations:...
***Features:...
**82498/493   Cache Controller / Cache RAM (for P54 Pentium)    <Nov94...
**
**Later chipsets (basic spec):
**440 series:...
**450NX  (?)            06/29/98:...
**?????  (Profusion)    c:99...
**800 series...
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*SIS...
**5595       Pentium PCI System I/O                          <12/24/97
***Notes:...
***Info:...
***Versions:...
***Features:...
**950        LPC I/O                                         <07/16/99...
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