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**82497/492   Cache Controller / Cache RAM (for P54 Pentium)    <Nov94
***Notes:...
***Info:...
***Configurations:
82497 +  8x 82492 (66Mhz, 256K)
82497 + 16x 82492 (66Mhz, 512K)

82497-60 +  8x 82492 (60Mhz, 256K)
82497-60 + 16x 82492 (60Mhz, 512K)

Cache ram is also rated at 60 or 66 MHz.

***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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*UMC...
**UM82C088     PC/XT Integration Chip                              <91
***Info:...
***Configurations:...
***Features:
o   Fully IBM-PC/XT compatible
o   82C84 Clock generator with 2 clock-inputs to generate the CPU 
    clock. These are 14.318 MHz and 30 MHz which will support 4.77 MHz
    and 10 MHz CPU clocks with 1/3 duty cycle.
o   82C88 Bus Controller
o   82C37 4 channel DMA controller, channel is used for DRAM refresh
o   82C59 8 channel interrupt controller, level is used for system 
    time base, and level 1 for keyboard input 
o   82C53 3 channel timer, channel is used for system time base, 
    channel 1 for DRAM refresh, and channel 2 for speaker audio
o   82C55 Peripheral l/O r used for keyboard interface and system 
    configuration switch (same as the PC/XT)
o   74322 Keyboard interface, supports PC/XT type keyboard
o   74280 Parity check and generator
o   74670 4 bit page register for DMA
o   Wait state logic
o   NMI control logic
o   ROM decoder for one 2764 and one 27256
o   RAM decoder for 4164 or 41256 DRAM
o   H/W and S/W CPU speed change and indicator
o   Built-in delay line for RAS, CAS
o   Low power consumption: less than 300 mW at 10 MHz CPU speed
o   Small PCB size: 100 pin plastic Flat package

**UM82C230     286AT MORTAR Chip Set                               <91...
**UM82C210     386SX/286 AT Chip Set                               <91...
**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:...
*Unresearched:...
*VIA...
**Later P-Pro/II/III/Celeron
***Notes (Unverified Information!):...
***VT82C691/2BX     Apollo Pro & Pro II           May 98...
***VT82C693         Apollo Pro+                   Dec 98...
***VT82C693A        Apollo Pro 133                Jul 99...
***VT82C694X/MP/Z/A Apollo Pro 133A, 133+ & 133Z  Oct 99...
***VT82C694T        Apollo Pro 133T...
***VT8601           PN133 (ProSavage) (mobile)...
***VT8601/A/T       PM601, PLE133, PLE266 & PLE133T (ProMedia)...
***VT8604/T         PL133 & PL133T (ProSavage)...
***VT8605/6         PM133 & PM133T (ProMedia-II), (ProSavage)...
***VT8607/8         PM266 & PM266T (ProSavageDDR)...
***VT8613           PN266T (mobile)...
***VT8633           Apollo Pro 266                Sep 00...
***VT8653           Apollo Pro 266T & PX-266...
***VT8622/23        CLE266 (mobile)...
***VT????           CM400                         Jan 04...
***Others:...
**Later AMD...
**Other...
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*Winbond...
*ZyMOS...
*General Sources:...