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**82496/491     Cache Controller / Cache RAM (for P5 Pentium) 03/22/93
***Notes:...
***Info:...
***Configurations:...
***Features:...
**82497/492   Cache Controller / Cache RAM (for P54 Pentium)    <Nov94...
**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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**SL82C470   'Mozart' 486/386 EISA chipset                     c:Dec91
***Info:...
***Configurations:...
***Features:
o   100% EISA compatible
o   20/25/33/50 MHz 80486 DX/SX CPU operation
o   25/33/40 Mhz 80386DX CPU Operation
o   Integrated write back cache controller with built-in tag comparator
o   Concurrent CPU-cache and EMA/master operations with bus snooping
o   Only ten TTL components are required
o   Complete EISA system can be built on a baby AT sized motherboard
o   Flexible cache size from 64KB to 1MB
o   Page mode DRAM operation supporting 1 to 4 banks up to 256MB
o   Video/system BIOS, shadowing and caching
o   Supports both conventional and concurrent configurations
o   Inclusive secondary cache for snoop filtering
o   Synchronous EISA bus clock
o   Transparent Gate A20 and CPU reset
o   CPU local bus device support
o   Supports 80387, 80487SX and Weitek 3167/4167 co-processors
o   Decoupled refresh without holding CPU
o   Staggered DRAM refresh to minimize power supply noise
o   Rlch set of register options to allow customization
o   Three 160-pin PQFP packages in low power and high speed 0.8um CMOS 
    Technology
**SL82C490   'Wagner' 486?              [no datasheet]               ?...
**SL82C550   'Rossini' Pentium          [no datasheet]            c:95...
**
**Support Chips:
**SL82C365    Cache Controller (for 386DX/SX)                     c:91...
**SL82C465    Cache Controller (for 486/386DX/SX)                 c:91...
*TI (Texas Instruments)...
*UMC...
**UM82C210     386SX/286 AT Chip Set                               <91
***Info:...
***Configurations:...
***Features:...
**UM82C3xx     Twinstar & UM82C336F/N & UM82C39x [no datasheet]      ?...
**UM82C380     386 HEAT PC/AT Chip Set                             <91...
**UM82C480     386/486 PC Chip Set                                 c91...
**UM82C493/491 ??????????????? [no datasheet]                        ?...
**UM8498/8496  486 VL Chipset  "Super Energy Star Green"[no dsheet]c94...
**UM8881/8886  HB4 PCI Chipset "Super Energy Star Green"[no dsheet]c94...
**UM8890       Pentium chipset [no datasheet]                        ?...
**
**Support Chips:
**UM82152      Cache Controller (AUStek A38152 clone)              <91...
**UM82C852     Multi I/O For XT                                    <91...
**UM82C206     Integrated Peripheral Controller                    <91...
**UM82c45x     Serial/Parallel chips                                 ?...
**Other chips:...
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