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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
***Info:...
***Configurations:...
***Features
1.  Fully IBM PC/AT Compatible
2.  Flexible CPU and Local Bus Interface
    - Supports 80486SX/DX/DX2/DX4 and compatible CPUs
    - CPU speed up to 100 Mhz including 80486DX-50, 80486DX2-66 and 
      80486DX4-100
    - Supports CPUs with write-back internal cache, e.g. P24D, P24T 
      and Cx486DX/DX2
    - Snoop filtering for write-back CPUs
    - Supports SMI protocols of Intel, AMD, TI and Cyrix CPUs
    - CPU clock stretching and throttling
    - Zero frequency and zero voltage CPU suspend
    - Soft and hard CPU reset
    - Direct VESA and other local bus interface with DMA/master access
    - Built-in arbitration for two local bus masters
3.  Advanced Cache Controller
    - Write back/write through scheme
    - Direct map scheme
    - Flexible cache size: 0K/32K/64K/128K/256K/512K/1MB
    - One bank or two banks of data independent of cache size
    - Integrated 8-bit tag comparator
    - Interleaved SRAM access to achieve 2-1-1-1 burst fill
    - Supports burst read and burst write transfers
    - System and video BIOS cacheable and write-protect
    - Programmable cache timing
    - Programmable non-cacheable region
    - Optional combined tag and alter bit SRAM for the write-back 
      scheme
    - Eight bit tag under the combined tag-alter scheme without 
      sacrifice of cacheable space
4.  Fast Page Mode DRAM Controller
    - Mixed 256K/512K/1M/2M/4M/8M/16MxN DRAMs
    - 8 banks up to 128MB
    - Flexible column and row addresses
    - 30 pin (x9) and single/double density 72 pin (x36) SIMM 
      module support
    - Programmable DRAM timing
    - BIOS shadow at 16KB increment
    - 256/384K memory relocation
    - System management memory remapping
    - Decoupled DRAM refresh with staggered RAS timing
    - CAS-before-RAS and slow refresh
5. Synchronous ISA Bus Controller
    - Synchronous ISA bus clock
    - Programmable wait state, command delay and IO recovery time
    - Bus conversion and data alignment
    - Hardware and software de-turbo control
    - Fast reset and Gate A20 operation
    - Integrated 82C206 peripheral controller
    - Edge trigger or level sensitive interrupt controller
    - Flash EPROM and combined BIOS support
6. Integrated Power Management Unit
    - Normal, conserve, doze, sleep and suspend modes
    - System event monitoring with two event classes and two idle 
      timers
    - Primary and secondary interrupt differentiation for individual 
      channels
    - One extended peripheral timer and one general purpose timer
    - Automatic conserve mode operation for short and frequent system 
      idleness
    - Modular clock and modular power
    - CPU clock stretching, throttling or stop without affecting the 
      ISA bus clock
    - Zero frequency operation with automatic resume
    - Zero volt operation with leakage control
    - Four general purpose IO or power control ports
    - APM 1.1 compliant
7.  Integrated Local Bus IDE Controller
    - 32-bit host data transfer
    - Mode-3 transfer capabilities (>10MB/s)
    - Programmable read/write, master/slave and active/recovery timing 
      in units of CPU clock
    - Prefetch and write buffers
    - Support either primary (1F0-1F7h) or secondary (170-177h) 
      channel  with two devices
    - No external logic required
8.  High Integration and Complete Functionality
    - Glueless interface with the VT82C406MV IXP (Integrated X-bus 
      Peripheral Controller, 100PQFP) to eliminate the multi-clock 
      generator, the keyboard controller with PS2 mouse, the DS-1285 
      style real time clock with extended CMOS RAM and the address 
      buffers.
    - 9 TTLs for a complete main board implementation
    - Optional VT82C505 (160 PQFP) to bridge a VL/ISA system to the 
      PCI bus
9.  0.8um high speed and low power CMOS process
10. 208-pin PQFP package

**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...
**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...
*VLSI...
*Western Digital...
*Winbond...
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