[Home] [This version is outdated, a new version is here]
*Title...
*Search:...
*Read Me/FAQ/General Info...
*_IBM...
*ACC Micro...
*ALD...
*ALi...
**M1541/42/33/43 Aladdin V & V+    50-100MHz                         ?
***Info:...
***Configurations:...
***Features:...
**M1561/43/35D   Aladdin 7 ArtX    [no datasheet, some info]  11/08/99...
**M6117          386SX Single Chip PC                              <97...
**
**Support Chips:
**M1535/D        South Bridge                                        ?...
**
**May not exist:...
**Later Chipsets:...
**Other:...
*AMD . . . . . . . [no datasheets, some info]...
*Chips & Technologies...
*Contaq  . . . . . [no datasheets, some info]...
*Efar Microsystems [no datasheets, some info]...
*ETEQ...
**ET2000     386/486 WB Chipset                                      ?
***Info:...
***Configurations:...
***Features:
o   Process technology used 0.8u CMOS
o   CPUs supported Intel 80486, 80486SX, AMD Am386DX Am486DX, Cyrix 
    486DLC
o   CPU speed supported 16/20/25/33/40/50 MHZ
o   CPU speed supported in 386 system (No external PALS required)
    Intel 80387/ Cyrix / HT/ULSI / WEITEK 3167
o   Coprocessors supported in 486 system (No external PALS required) 
    WEITEK 4167
o   AT clock generation Async / Sync
o   Programmable AT bus clock Yes
o   Hardware / Software turbo switching Yes
o   Page Mode DRAM control Yes
o   Double word interleave control Yes
o   DRAM type supported 256K/1M/4M/16M
o   Mixing DRAMS Yes
o   Concurrent and AT Refresh Yes
o   Shadow RAM range maximum size / block size  256 KB / 64KB
o   Support EISA/ ISA bus compatibility Yes
o   Support Local Bus Yes
o   PQFP package: ETISP - 184, ETCMC, ETEBC, ETEDB -l60
o   Maximum Physical DRAM 256MB
o   Programmable wait states Yes
o   On chip cache controller Yes
o   Support 8kx8 and 8kx9 Tag RAM Yes
o   Cache update scheme Write back
o   Cache organization Direct mapped
o   Data cache size 32KB-1 MB
o   Non-cacheable support Yes
o   Each non-cacheable region size 512KB-32MB
o   Zero wait state cache read hit Yes
o   Zero wait state cache write hit Yes
o   SRAM Burst mode support 2-1-1-1, 2-2-2-2, 3-1-1-1, 3-2-2-2 Yes
o   DRAM Burst mode support Yes
o   External TTL component 11 - 13
o   SRAM speed required @ 50MHz 20ns
o   SRAM speed required @ 40MHZ 20ns
o   SRAM speed required @ 33MHz 20ns
o   SRAM speed required @ 25MHz 35ns
o   AENx generator Yes
o   Fast gate A20 Yes
o   Fast reset Yes

**ET6000     "Cheetah" 486DX/SX Non-Cache System                <Apr92...
**ET9000     "Jaguar" 486 Write Back Cache AT Single Chip       <Jun92...
**ET9800/391 "Firefox" 386SX Write Back chipset [no datasheet]       ?...
**82C390SX   "Panda" S.C. 386SX Direct Mapped Cache [no d.sheet]cFeb92...
**66x8       VIA clones [no datasheet]                               ?...
*Faraday...
*Forex . . . . . . [List only, no datasheets found]...
*Intel...
**82497/492   Cache Controller / Cache RAM (for P54 Pentium)    <Nov94
***Notes:
Date source: 1995_Intel_Pentium_Processors_and_Related_Components.pdf

Information taken from: 
            1995_Intel_Pentium_Processors_and_Related_Components.pdf*
                                         8249x Cache controllers.pdf**
>*  Datasheet dated Nov'94
>** Datasheet undated, whole document dated '95

The info and features section have  been solely sourced from the first
source.   The  second source  provides  far  more detail.   Additional
information in the configurations section  and below have been sourced
from the second.

"Although the 82497 Cache Controller  is part of the Pentium processor
(735\90, 815\100, 1000\120, 1110\133) CPU-Cache Chip Set and the 82496
Cache  Controller is part  of the  Pentium Processor  (510\60, 567\66)
Chip  Set, the  two parts  are functionally  identical except  for the
differences noted in this section." - p491

Aside  from some  minor  differences in  pin  configuration, the  main
difference is the direct support  for 3.3V processors. This chipset is
still a 5V part. The cache operates at bus speed, max 66MHz.


This  chip was  used on  the Pentium  90MHz CPU  complexes of  Intel's
Xpress  platform.   Specifically  the BXCPUPENT90  (Single  90MHz,  16
82492s). Also found on IBM 9595/Server 500 Pentium 90MHz complexes.

***Info:...
***Configurations:...
***Features:...
**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...
*Motorola...
*OPTi...
*PC CHIPS/Amptron/Atrend/ECS/Elpina/etc...
*SIS...
*Symphony...
*TI (Texas Instruments)...
*UMC...
*Unresearched:...
*VIA...
*VLSI...
*Western Digital...
*Winbond...
*ZyMOS...
*General Sources:...