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*Forex . . . . . . [List only, no datasheets found]
FRX36C200/100         386
FRX36C300/200         386 Write Through
FRX36C300/46C402      386 Write Through
FRX36C311             Single Chip 386SX with Cache
FRX46C411/402         386 Write Through
FRX46C411/412         386 Write Through
FRX46C421A/422        386 Write Back
FRX46C521A            ?
FRX58C613/601A        ?
FRX58C613A/602B/601B  ?

*Intel...
*Headland/G2...
*HMC (Hulon Microelectronics)
**HMC82C206 Integrated Peripherals Controller (10MHz C&T 82c206)     ?...
*Logicstar...
*Motorola...
*OPTi...
*PC CHIPS/Amptron/Atrend/ECS/Elpina/etc...
*SIS...
*Symphony...
*TI (Texas Instruments)
**SN74LS610/2 IBM AT: SN74LS610, SN74LS612 Memory Mappers          <84...
**TACT82000   3-Chip 286 [no datasheet]                            c89...
**TACT82411   Snake  Single-Chip AT Controller                     c90...
**TACT82S411  Snake+ Single-Chip AT Controller [no datasheet]      c91...
**TACT83000   AT 'Tiger' Chip Set (386)                            c89...
**TACT84500   AT Chip Set (486, EISA) [no datasheet, some info]    c91...
**Other:...
*UMC
**UM82C***     (IBM/INTEL Direct replacement)                      c87
Note:  Dates vary  for when  these  chips were  first available.   Two
databooks have been used one from  '86 the other from '91. Not all the
chips  are  listed  in  the  '86  databook, the  date  of  '87  is  an
assumption.

PC/XT:
IBM:	      UMC:	  Desc:
Intel 8284    UM82C84A    25MHz CMOS Clock Generator and Driver
Intel 8288    UM82C88     Bus Controller
Intel 8259    UM8259A     Programmable Interrupt Controller also UM82C59A-2 (CMOS version)
Intel 8237    UM8237A     3-5MHz Programmable DMA Controller (DMAC)
Intel 8253    UM8253*2    2.6-5MHz Programmable Interval Timer
Intel 8255    UM82C55A*   Programmable Peripheral Interface

Note: *  indicates: possible  compatibility, datasheet does  not state
      explicitly. YMMV.

Note: *2  indicates:   The   UM8253   can   be   replaced   with   the
      UM82C54/-2. The datasheet says it is a superset of the 8253, and
      works up to 10MHz. Also it's compatible with the 8254.  AT: IBM:
      UMC: Desc: Intel 82284  UM82C284* 10-12.5MHz Clock Generator and
      Ready Interface Intel 82288  UM82C288* 10-12.5MHz Bus Controller
      Intel 8254  UM82C54/-2 8-10MHz CMOS Programmable  Interval Timer
      Intel  8259  UM8259A   Programmable  Interrupt  Controller  also
      UM82C59A-2 (CMOS version) Intel 8237 UM8237A 3-5MHz Programmable
      DMA Controller (DMAC) 74LS612 UM74HCT612* Memory Mapper MC146818
      RTC  UM82C6818* Real-Time  Clock (RTC)  Intel 8047  ??  Keyboard
      Controller

Note: *  indicates: possible  compatibility, datasheet does  not state
explicitly. YMMV.

**UM82C088     PC/XT Integration Chip                              <91...
**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
***Info:...
***Configurations:...
***Features:...
**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
***Info:...
***Versions:...
***Features:...
**UM82c45x     Serial/Parallel chips                                 ?...
**Other chips:...
*Unresearched:...
*VIA
**SL9XXX   FlexSet family General information...
**SL9011   System Controller (80286/80386SX/DX, 16/20/25MHz)    <Jan90...
**SL9020   Data Controller                                      <Jan90...
**SL9025   Address Controller                                   <Jan90...
**SL9030   Integrated Peripheral Controller                     <Jan90...
**SL9090/A Universal PC/AT Clock Chip                           <oct88...
**SL9095   Power  Management Unit                                    ?...
**SL9151   80286 Page Interleave Memory Controller (16-25MHz)        ?...
**SL9250   80386SX Page Mode Memory Controller (16/20MHz 8MB)        ?...
**SL9251   80386SX Page Interleave Memory Controller         <04/13/90...
**SL9252   80386SX System and Memory Controller              <06/12/90...
**SL9350   80386DX Page Mode Memory Controller (16-25MHz 16MB)       ?...
**SL9351   80386DX Page Interleave Memory Controller (33MHz)         ?...
**SL9352   80386DX System and Memory Controller              <06/12/90...
**SLXXXX   Other chips...
**
**VT82C470     "Jupiter", Chip Set (w/o cache) 386 [no datasheet]    ?
**VT82C475     "Jupiter", Chip Set (w/cache) 386   [no datasheet]    ?
**VT82C486/2/3 "GMC chipset"            [no datasheet, some info]    ?...
**VT82C495/480 "Venus" Chip Set                    [no datasheet]    ?
**VT82C495/491 ? EISA Chip Set          [no datasheet, some info]  <93...
**VT82C496G    Pluto, Green PC 80486 PCI/VL/ISA System       <05/30/94...
**VT82C530MV   3.3V Pentium chipset [no datasheet, some info]<05/30/94...
**VT82C570M    Apollo Master, Green Pentium/P54C             <06/22/95...
**VT82C580VP   Apollo VP,  Pentium/M1/K5 PCI/ISA System      <02/15/96...
**VT82C580VPX  Apollo VPX, VPX/97, Pentium with 66/75MHz Bus <01/09/97...
**VT82C590     Apollo VP2, VP2/97, Single-Chip Pentium 66MHz <01/10/97
***Info:
The  VT82C590 Apollo-VP2  is  a high  performance, cost-effective  and
energy efficient  chip set for  the implementation of  PCI/ISA desktop
and   notebook  personal   computer  systems   based  on   the  64-bit
Pentium/AMD5K86/AMD6K86/Cyrix6X86 super-scalar processors.

The  Apollo-VP2 chip set  consists of  the VT82C595  system controller
(328 pin BGA) and the VT82C586B  PCI to ISA bridge (208 pin PQFP). The
VT82C595 system  controller provides superior  performance between the
CPU, optional synchronous cache, DRAM  and the PCI bus with pipelined,
burst and concurrent operation. For pipelined burst synchronous SRAMs,
3-1-1-1-1-1-1-1  timing  can  be  achieved  for both  read  and  write
transactions at 66  Mhz. Four cache lines (16  quadwords) of CPU/cache
to  DRAM  write  buffers  with concurrent  write-back  capability  are
included in the chip to speed up the cache read and write miss cycles.

The  VT82C595  supports six  banks  of DRAMs  up  to  512KB. The  DRAM
controller supports Standard Page  Mode DRAM, EDO DRAM and Synchronous
DRAM in a flexible mix  / match manner. The Synchronous DRAM interface
allows zero wait state bursting  between the DRAM and the data buffers
at  66Mhz. The  six banks  of  DRAM can  be composed  of an  arbitrary
mixture of 1M / 2M / 4M / 8M / 16MxN DRAMs. Each bank may be populated
with  either 32bit  or 64bit  data  width.  The  DRAM controller  also
supports  optional  ECC  (single-bit  error correction  and  multi-bit
detection) capability.

The VT82C595  supports 3.3 / 5V  32-bit PCI bus with  64-bit to 32-bit
data conversion.  Five levels (doublewords) of post  write buffers are
included to  allow for concurrent  CPU and PCI  operation. Consecutive
CPU addresses  are converted into  burst PCI cycles with  byte merging
capability  for  optimal  CPU   to  PCI  throughput.  For  PCI  master
operation, forty-eight levels (doublewords)  of post write buffers and
sixteen  levels (doublewords)  of  prefetch buffers  are included  for
concurrent PCI bus and  DRAM/cache accesses. The chipset also supports
enhanced  PCI  bus  commands  such as  Memory-Read-Line,  Memory-Read-
Multiple   and  Memory-Write-Invalid   commands   to  minimize   snoop
overhead. In addition, the  chipset supports advanced features such as
snoop ahead, snoop filtering, L1  write-back forward to PCI master and
L1  write-back merged  with PCI  post  write buffers  to minimize  PCI
master read  latency and  DRAM utilization. The  VT82C586B PCI  to ISA
bridge supports four levels (doublewords)  of line buffers, type F DMA
transfers and delay transaction to allow efficient PCI bus utilization
and  (PCI-2.1 compliant).  The VT82C586B  also includes  an integrated
keyboard controller  with PS2 mouse support,  integrated DS12885 style
real time  clock with  extended 256 byte  CMOS RAM,  integrated master
mode enhanced  IDE controller with full scatter  and gather capability
and  extension to  UltraDMA-33 /  ATA-33 for  33MB/sec  transfer rate,
integrated USB  interface with  root hub and  two function  ports with
built-in  physical layer  transceivers, Distributed  DMA  support, and
OnNow  / ACPI  compliant advanced  configuration and  power management
interface.  A complete  main board  can be  implemented with  only six
TTLs.   

The VT82C590 chipset is ideal for high performance, high quality, high
energy  efficient and  high integration  desktop and  notebook PCI/ISA
computer systems.

***Configurations:...
***Features:...
**VT82C597/AT  Apollo VP3, Single-Chip for Pentium with AGP  <10/03/97...
**VT82C598MVP  Apollo MVP3,Single-Chip 66/75/83/100MHz & AGP <09/22/97...
**VT8501       Apollo MVP4,Single-Chip 66-100MHz & AGP       <11/04/98...
**VT82C680     Apollo P6, Pentium-Pro Chip Set               <08/30/96...
**Support chips:
**VT82C505     Pentium/486 VL to PCI Bridge                  <05/30/94...
**VT82C586/A/B PCI Integrated Peripheral Controller          <10/13/96...
**VT82C596/A   Mobile PCI Integrated Peripheral Controller   <11/05/97...
**VT82C686A/B  PCI Super-I/O Integrated Peripheral Ctrl.     <02/10/98...
**Later P-Pro/II/III/Celeron...
**Later AMD...
**Other...
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*ZyMOS...
*General Sources:...

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