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**82495XP/490XP Cache Controller / Cache RAM (for i860)       06/05/91
***Notes:...
***Info:...
***Features:
o   Two-Way, Set Associative, Secondary Cache for i860 XP 
    Microprocessor
o   50 MHz "No Glue" Interface with CPU
o   Configurable
    - Cache Size 256 or 512 Kbytes
    - Line Width 32, 64 or 128 Bytes
    - Memory Bus Width 64 or 128 Bits
o   Dual-Ported Structure Permits Simultaneous Operations on CPU and
    Memory Buses
o   Efficient MRU Way Prediction
    - Zero Wait States on MRU Hit
    - One Walt State on MRU Miss
o   Dynamically Selectable Update Policies
    - Write-Through
    - Write-Once
    - Write-Back
o   MESI Cache Consistency Protocol
o   Hardware Cache Snooping
o   Maintains Consistency with Primary Cache via Inclusion Principle
o   Flexible User-Implemented Memory Interface Enables Wide Range of
    Product Differentiation
    - Clocked or Strobed
    - Synchronous or Asynchronous
    - Plpelining
    - Memory Bus Protocol
o   82495XP Cache Controller Available in 208-Lead Ceramic Pin Grid 
    Array Package
o   82490XP Cache RAM Available in 84-Lead Plastic Quad Flatpack 
    Package

**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...
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**82C895         System/Power Management Controller (cached)   c:Sep94
***Notes:...
***Info:...
***Configurations:...
***Features:...
**82C898         System/Power Management Controller (non-cache)c:Nov94...
**
**Support Chips:
**82C601/2       Buffer Devices                                 <Nov94...
**82C822         PCIB (VLB-to-PCI bridge)                         c:94...
**Other:...
*PC CHIPS/Amptron/Atrend/ECS/Elpina/etc...
*SIS...
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*TI (Texas Instruments)...
**TACT82S411  Snake+ Single-Chip AT Controller [no datasheet]      c91
***Notes:
from: 
http://www.cbronline.com/news/ti_announces_the_tact82s411_chip_implementation/

"Texas Instruments Inc has announced the TACT82S411, a new single chip
implementation of all the support  circuitry surrounding the CPU in an
AT-alike, operating at  up to 20MHz for 80286  and 80386SX laptops and
notebooks:  the  new  chip   will  integrate  system  logic  and  most
peripheral  functions,  including   interrupt  controller,  timer  and
real-time clock, so that only  seven logic devices, as well as memory,
processor  and math  co-processor are  needed  on a  80286 or  80386SX
motherboard;  the  chip  features  128-byte  CMOS  configuration  RAM,
two-way and  four-way page interleave  mode with 64Kb, 256Kb,  1Mb and
4Mb dynamic  RAM, and support for  up to 32Mb  memory; sampling starts
this month, with volume in the fourth quarter. "

**TACT83000   AT 'Tiger' Chip Set (386)                            c89...
**TACT84500   AT Chip Set (486, EISA) [no datasheet, some info]    c91...
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