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*_IBM...
*ACC Micro...
**ACC2087    Enhanced Super Chip (486 Single Chip)              <Aug96
***Info:...
***Configurations:...
***Features:
o   Supports Intel iDX4, AMD AM486, Cyrix 5x86, TI 486s, and IBM Blue 
    Lightning microprocessor with operation up to 50 MHz
o   3.3V / 5.0V mixed voltage system design
o   Level 1 Write Back Cache
o   Level 2 Cache Controller
    - Support either write back or write through implementation
    - Up to 2 MB in cache size
o   High Performance DRAM Controller
    - Supports four banks of 32-bit DRAM, Fast Page Mode only, 
      allowing up to 64 MB memory
o   Integrated Peripheral Controller: 2 x 8237, 2 x 8259, 1 x 8254, 
    1 x 74612
o   Integrated Floppy Disk Controller supports two floppy disk drives
o   Supports one IDE interface
o   Supports two high speed 16C550 compatible UARTs with 16 Byte FIFOs
o   Supports one bi-directional Parallel port with ECP mode
o   Support PPM mode where Floppy Disk Drive can be used on Parallel 
    Port
o   PS/2 compatible Keyboard Controller and Mouse
o   Power Management Control
    - Power-On Suspend
    - Power-Off Suspend
    - Doze / Idle Detection
    - Suspend / resume Button
    - APM support
    - SMM / SMI
    - Stop Clock Protocol
    - Battery monitoring signal and dedicated low-battery warning 
      alarm
o   Supports Flash EPROM
o   Local Bus IDE
o   Fast reset / Fast gate A20 (Port 92)
o   256-pin PQFP device
**ACC2089    486 PCI-based System Super Chip      [no datasheet]     ?...
**ACC2168/GT 32-bit 486 Green System Single Chip  [no datasheet]     ?...
**ACC2178A   32-bit 486 Green System Single Chip  [no datasheet]     ?...
**ACC2268    ?486                                 [no datasheet]     ?...
**ACC????    Maple/Maple-133 486-System-On-Chip   [no datasheet]     ?...
**
**Support Chips:
**ACC2016    Buffer and MUX Logic                                  c96...
**ACC2020    Power Management Chip                                 c92...
**ACC5500    Multifunction I/O Control Chip for PS2 Model 50/60    c88...
**
**Other chips...
*ALD...
*ALi...
*AMD . . . . . . . [no datasheets, some info]...
*Chips & Technologies...
*Contaq  . . . . . [no datasheets, some info]...
*Efar Microsystems [no datasheets, some info]...
*ETEQ...
*Faraday...
*Forex . . . . . . [List only, no datasheets found]...
*Intel...
**82495XP/490XP Cache Controller / Cache RAM (for i860)       06/05/91
***Notes:...
***Info:...
***Features:...
**82496/491     Cache Controller / Cache RAM (for P5 Pentium) 03/22/93...
**82497/492   Cache Controller / Cache RAM (for P54 Pentium)    <Nov94...
**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...
*Headland/G2...
*HMC (Hulon Microelectronics)...
*Logicstar...
**SL6012  Memory Mapper for PC-AT (74LS612 compatible)          <Jul87
***Info:...
***Versions:...
***Features:...
**SL9010  System Controller (80286/80386SX/DX, 16/20/25MHz)     <oct88...
**SL9020  Data Controller                                       <oct88...
**SL9025  Address Controller                                    <oct88...
**SL9090  Universal PC/AT Clock Chip                            <oct88
***Info:...
***Versions:...
***Features:...
**SL9250  Page Mode Memory Controller (16/20MHz 8MB Max)        <oct88...
**SL9350  Page Mode Memory Controller (16/20/25MHz 16MB Max)    <oct88...
**Other:...
*Motorola...
*OPTi...
*PC CHIPS/Amptron/Atrend/ECS/Elpina/etc...
*SIS...
*Symphony...
*TI (Texas Instruments)...
*UMC...
*Unresearched:...
*VIA...
*VLSI...
*Western Digital...
*Winbond...
*ZyMOS...
*General Sources:...