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**Cant find a chip?
Early chip sets have a title and a part no. to refer to the chip set
as a whole. As time went on the chip set became one chip, so later
chip sets are usually referred to by the part no. on the actual chip.
These are usually called "Single Chip" by the manufacture, although
they nearly always follow the 2-chip North/South-bridge paradigm. So
these are referred to by for example, "M1521/M1523" or "M1521/M23" for
short. If there is a part number for the chip set as a whole that has
precedence. Try the search function for a chip part no. and hopefully
it will turn up the chip set it was part of.
**Why this document is not GPL or a wiki...
**Definition of a chip set:...
**'chip set', 'chip-set' or 'chipset'?...
**What's not included:...
**Who made the first chip set?...
**Spelling errors/mistyped words...
**Info needed on:...
**A note on VESA support of 486 chipsets....
**Datasheets:...
*_IBM...
*ACC Micro...
*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...
**82497/492 Cache Controller / Cache RAM (for P54 Pentium) <Nov94
***Notes:...
***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...
**82C391/392 386WB PC/AT Chipset (386DX) <Dec90
***Info:...
***Configurations:...
***Features:...
**82C461/462 Notebook PC/AT chipset [no datasheet] ?...
**82c463 SCNB Single Ship Notebook c:92...
**82c465MV/A/B Single-Chip Mixed Voltage Notebook Solution <Oct97...
**82C481?/482? HiP/486 & HiB/486 [no datasheet] Oct89...
**82C491/392 486WB PC/AT Chipset <04/21/91...
**82C493/392 486SXWB <10/21/91...
**82C495SX/392SX LCWB PC/AT chipset [no datasheet] ?...
**82C495SLC DXSLC 386/486 Low Cost Write Back c:92...
**82C495XLC PC/AT Chip Set c:93
***Info:...
***Configurations:...
***Features:
o Low cost, low power, CMOS Technology
o Supports 386DX, 486 DX/DX2/SX CPUs as well as Intel
P24T and Cyrix Cx486S/S2 and Cx486DX/DX2 CPUs
o One 160-pin CMOS Plastic Flat Package (PFP), one 84
pin PLCC (or one 100-pin PFP)
o Internal buffers and termination to reduce external parts count
o Copy-Back Direct-Mapped Cache: 32/64/128/256KB for 386, and
64/128/256/512KB for 486
o Up to 10% performance enhancement from write-through cache scheme
o Supports 2-1-1-1 or 3-2-2-2 cache cycles
o On-chip comparator determines cache hit/miss
o Up to 64MB of local high-speed, page mode DRAM memory space
o Burst line fill during cache read-miss
o Control of one non-cacheable region
o Shadow RAM support for system, video and adapter card BIOS
o Optional caching of shadowed video BIOS
o Hidden refresh support to enhance system performance
o Turbo/slow speed selection (386 mode only)
o AT bus clock selectable from CLKI (/6, /5 /4, /3)
o CAS-before-RAS refresh reduces power consumption
o Optional 0 or one wait state for cache write-hit
o 387 coprocessor support for 386 mode
o Internal CD and CA bus pull-up resistors to save components and
board real-estate
o Comprehensive VL bus and OPTi high-performance local bus support
o On-chip hardware provides direct support for up to two
VL bus master devices
**82c496A/B DXBB PC/AT Chipset <Mar92...
**82C496/7 DXBB PC/AT Chipset (Cached) <01/16/92...
**82C498 DXWB PC/AT chipset [no datasheet] ?...
**82C499 DXSC DX System Controller c:93...
**82C546/547 Python PTM3V c:94...
**82C556/7/8 Viper [no datasheet] ?...
**82C556/7/8N Viper-N Viper Notebook Chipset <05/25/95...
**82C556M/7M/8E Viper-N+ Viper Notebook Chipset c:96...
**82C566/7/8 Viper-Max Chipset Scalable MultiMedia PC Solution ?...
**82C571/572 486/Pentium c:93...
**82C576/7/8 Viper Xpress [no datasheet] ?...
**82C576/8/9 Viper XPress+ [no datasheet, some info] <01/16/97...
**82C596/597 PTMAWB Pentium Adaptive Write-back (Cobra) c:93...
**82C650/1/2 Discovery (Pentium Pro) [no datasheet] ?...
**82C681/2/6/7 386/486WB EISA c:92...
**82C683 386/486AWB EISA [no datasheet] ?...
**82C693/6/7 Pentium uP Write Back Cache EISA c:93...
**82C700 FireStar c:97...
**82C701 FireStar Plus c:97...
**82C750 Vendetta [no datasheet] ?...
**82c801 SCWB2 DX Single Chip Solution c:92...
**82C802 SCWB2 PC/AT Single Chip [no datasheet] ?...
**82C802G/GP System/Power Management Controller (cached) c:93...
**82C895 System/Power Management Controller (cached) c:Sep94...
**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...
*Symphony...
*TI (Texas Instruments)...
*UMC...
*Unresearched:...
*VIA...
*VLSI...
*Western Digital...
*Winbond...
*ZyMOS...
*General Sources:...
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