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**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...
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*Headland/G2...
**Notes:
InfoWorld Apr 10, 1989 p42 - Video Severn and G-2 Will Merge to form
Headland Technology.
...affiliate of LSI logic.

According to:
http://www.vgamuseum.info/index.php/news/itemlist/category/15-headland-technology

Graphics chips were renamed from  GC*** to HT***. In this document any
part no. that differs only by  GC/HT have been assumed to be a renamed
part.

**GC101/102     12/16MHz PC/AT Compatible Chip Set             c:Feb88...
**GC101/102/103 12/16MHz PC/AT Compatible Chip Set + EMS 4.0   c:Jul89...
**GCK113        80386 AT Compatible Chip Set                   c:oct89...
**GCK181        Universal PS/2 Chip Set                        c:Mar89...
**HT11          Single 286 AT Chip [no datasheet]               <Aug90...
**HT12/+/A      Single 286 AT Chip with EMS support            c:Aug90...
**HT18          80386SX Single Chip                            c:Sep91...
**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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**SL82C365    Cache Controller (for 386DX/SX)                     c:91
***Info:
The SL82C365 supports direct-mapped cache system with data size ranged
from  16KB to  1MB  and line  size  ranged from  1  to 4  doublewords.
Without any  external logic, SL82C365 supports  1 to 4  banks of cache
SRAMs  independent of  the  line  size.  An  8-bit  tag comparator  is
integrated into the  chip which not only saves on  the system cost but
also improves  the overall performance.   25ns tag SRAM and  35ns data
SRAM   are  adequate   for   zero  wait   state  non-pipelined   33Mhz
operation. Assuming  8Kx8, 16Kx4, 32Kx8  and 64Kx4 SRAMs are  used for
tag SRAM, the selectable organization  is indicated in Table 1-1. [see
datasheet]  More options  are  available for  data RAM  configurations
because of the flexibility in  selecting the number of banks. Refer to
section 1.13 [see datasheet] for detailed design examples.

***Versions:...
***Features:...
**SL82C465    Cache Controller (for 486/386DX/SX)                 c:91...
*TI (Texas Instruments)...
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