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**82495DX/490DX DX CPU-Cache Chip Set                           <Sep91
***Notes:...
***Info:...
***Configurations:...
***Features:...
**82495XP/490XP Cache Controller / Cache RAM (for i860)       06/05/91...
**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...
**HT18          80386SX Single Chip                            c:Sep91
***Info:...
***Configurations:...
***Features:...
**HT21          386SX/286 Single Chip (20 MHz)                 c:Aug91...
**HT22          386SX/286 Single Chip (25 MHz)                 c:Sep91...
**HT25          3-volt Core Logic for 386SX                    c:Dec92...
**HT35          Single-Chip Peripheral Controller [partial info]     ?...
**HTK320        386DX Chip Set                                 c:Sep91...
**HTK340        "Shasta" 486 Chip Set                          c:Jun92...
**Support Chips:
**HT44          Secondary Cache                                c:Jun92...
**Other:...
*HMC (Hulon Microelectronics)...
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*Western Digital...
**FE6500        CPU Core Logic for PS/2 Model 70/80 Compatibles   c:88
***Notes:...
***Info:
****General:...
****FE6000 Enhanced CPU and Peripheral and Control Logic:
As part of the Western Digital FES400 and FE6500 chip sets, the FE6000
CPU  and  Peripheral Control  Logic  integrated circuit  significantly
facilitates the design and  implementation of system boards compatible
with  IBM’s  Micro  Channel  Architecture.  It  decreases  the  design
complexity and saves Space by combining the functions of many discrete
arrays  and  components, while  reducing  system  cost and  increasing
system reliability.

The Extended  Setup Facility (BSF)  is a fully  compatible enhancement
that  allows designers  to easily  configure  additional functionality
such as  a Winchester Controller, LAN Adapter,  Additional Serial Port
on the system  board. This facility can help  reduce costs and provide
system level product differentiation.   Figure 1 [see datasheet] shows
a typical system diagram using the FE5400 or FE6500 chip sets.

****FE6010 DMA and Channel Control logic:...
****FE6022 Address and Data Buffer Devices:...
****FE6030 Cache/DRAM and Channel Control Device:...
***Configurations:...
***Features:...
**WD6400SX/LP   CPU Core Logic for PS/2 386SX Compatibles          <90...
**WD6500        CPU Core Logic for PS/2 386DX/486 Compatible       <90...
**WD7600A/LP/LV System Chip Set for 80286 or 80386SX         <11/25/91...
**WD7700/LP     System Chip Set for 80286 or 80386SX (Cache) <11/25/91...
**WD7855        System controller for 80386SX                <09/25/92...
**WD7900/LP/LV  System Chip Set for 80286 or 80386SX (Cache) <11/25/91...
**WD8110        System controller for 80386DX/486            <11/30/93...
**
**Support Chips:
**WD76C20x   Floppy, RTC, IDE and Support Logic Device       <11/25/91...
**WD76C30x   Perip. Ctrl, Interrupt Multiplex, and Clock Gen <11/18/91...
**WD7615     Desktop Buffer Manager                          <04/15/92...
**WD7625     Desktop Buffer Manager                          <10/01/92...
**WD8120LV   Super I/O [no datasheet]                                ?
**Other Chips:...
*Winbond...
*ZyMOS...
*General Sources:...