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**M1217/M1209    386SX/SLC Single Chip (40MHz)    [no datasheet]   c91
***Notes:...
**M1219          386DX/486 ISA Cache? Single Chip [no datasheet]     ?
**M1419          386DX/486 ISA Cache  Single Chip [no datasheet]   c91
**Ml429/31/35    486 VLB/PCI/ISA      [no datasheet, some info] cOct93...
**M1439/31/45    486 VLB/PCI/ISA      [no datasheet, some info] <May95...
**M1489/87       FinALi-486 PCI Chipset                         <Feb95...
**M????          Genie, Quad Pentium  [no datasheet, some info]    c95...
**M1451/49       Aladdin    (Pentium) [no datasheet]                 ?...
**M1511/12/13    Aladdin II (Pentium) [no datasheet, some info] >Apr95...
**M1521/23       Aladdin III       50-66MHz                     <Nov96...
**M1531/33/43    Aladdin IV & IV+  50-83.3MHz                <05/28/97...
**M1541/42/33/43 Aladdin V & V+    50-100MHz                         ?...
**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...
*Faraday...
*Forex . . . . . . [List only, no datasheets found]...
*Intel...
**82420TX/ZX  PCIset (for 486) TX (Saturn), ZX (Saturn II)     c:Nov92
***Notes:
Date source: 82420 (nov92).pdf

Originally known as the 82420 chipset


Information taken from:                            82420 (nov92).pdf
                         82420_PCIset_ISA_and_EISA_Bridges_Mar93.pdf
                                Intel_Peripheral_Components_1994.pdf*
			      82424ZX (nov94).pdf, 82420 (nov94).pdf
   (Errata:1) http://support.intel.com/support/chipsets/420/8510.htm**
   (Errata:2) http://support.intel.com/support/chipsets/420/8511.htm**
   (Errata:3) http://support.intel.com/support/chipsets/420/8512.htm**
   (Errata:4) http://support.intel.com/support/chipsets/420/8513.htm**
(Errata:5) http://support.intel.com/support/chipsets/420/apptech.htm**

>* General 82420 datasheet, 82423 and 82424 all dated Oct'93.
>** see archived sources at the end of this section


Differences:
Nov'92 to Mar'93:
  The Mar'93 datasheet  (Both only include the general  section) has a
  completely restructured  Info and  Features section.  The  main func-
  tional difference is that in  the Nov'92, no PCI-EISA bridge version
  is  available.  The Mar'93  is  the  earliest  datasheet found  that
  mentions the 82374/82375 EISA components.

Mar'93 to Oct'93:
  The Mar'93  datasheet refers to the 82424TX  component directly, the
  Oct'93 to just  82424.  Same with 82423TX and 82423.  This is due to
  the datasheet specifying both the TX and ZX variants of both chips.

  A similar thing  occurs with the 82378IB and 82378.  In Oct'93 there
  were IB and  ZB variants.  Other differences are shown  in the text.
  The Mar'93 source only includes the general section. In Oct'93, both
  datasheets found  for the  specific chips are  only short  1-2 pages
  long.

  In Errata:1, more specifics are given, that partially contradict the
  Oct'93 datasheet. Dated Aug'93 the following differences are given:

  "
  82424TX  * Name change from 82424TX to 82424ZX
  Changes: * ZX eliminates all known TX errata
	   * Features/Enhancements include: Extra RAS line supports 
             additional memory, Optional memory locations for SMM, 
             external work-around logic for TX eliminated

  Timing:
  We  anticipate  production   shipments...in  October  1993  for  the
  82424ZX. "

  Errata:2 gives further details.   The document itself is undated, but
  Errata:1 is  hyperlinked to it.  Its  text is quoted  in the Versions
  section. Errata:3 & 4 go into further detail.

  All Errata  documents contradict the  Oct'93 datasheet, by  making no
  mention of the 82423ZX variant.

Oct'93 to Nov'94:
  In the Nov'94 datasheet specific variants are now referred to again.
  All references  to 82424 are  replaced with 82424ZX,  82378 replaced
  with 82378ZB. The  82423 is replaced with 82423TX  again. It appears
  the 82423ZX variant either no longer exists, or the Oct'93 datasheet
  refers to  a chip that  was planned,  but never introduced.   As the
  Oct'93 datasheet  for the 82423 specific  chip is only a  part data-
  sheet  (1-2 pages),  it has  been impossible  to determine  what the
  differences are  between the ZX and  TX variants, or even  if the ZX
  variant actually existed.  It simply states there are differences.

  The  specific datasheet  for the  82424 now  only refers  to  the ZX
  variant. the ZX-50 variant  is not mentioned.  Other changes between
  the datasheets are shown in the text.

Errata:5  contains links  to additional  information, some  related to
this chipset.

Archived sources:
http://web.archive.org/web/20000816013859/http://support.intel.com/support/chipsets/420/8510.htm
http://web.archive.org/web/20000816013854/http://support.intel.com/support/chipsets/420/8511.htm
http://web.archive.org/web/20000818162626/http://support.intel.com/support/chipsets/420/8512.htm
http://web.archive.org/web/20000818162634/http://support.intel.com/support/chipsets/420/8513.htm
http://web.archive.org/web/19990421055226/http://support.intel.com/support/chipsets/420/apptech.htm

***Info:...
***Versions:...
***Configurations:...
***Features:...
**82420EX     PCIset (for 486) EX (Aries)   (82425EX/82426EX)   <Dec94...
**82430LX     PCIset (Pentium) LX (Mercury) (82433LX/82434LX) 03/22/93...
**82430NX     PCIset (Pentium) NX (Neptune) (82433NX/82434NX)    Mar94...
**82430FX     PCIset (Pentium) FX (Triton I) (82437FX/82438FX)01/31/95...
**82430MX     PCIset (Pentium) MX (Mobile Triton)(82437/438MX)11/01/95...
**82430HX     PCIset (Pentium) HX (Triton II) (82439HX)       02/12/96...
**82430VX     PCIset (Pentium) VX (Triton II) (82437VX/82438) 02/12/96...
**82430TX     PCIset (Pentium) TX (Triton II) (82439TX)       02/17/97...
**82450KX/GX  PCIset (Pentium Pro) KX/GX (Mars/Orion)         11/01/95...
**
**Support Chips:
**82091AA     Advanced Interface Peripheral (AIP)                  c93...
**8289        Bus Arbiter (808x)                                   c79...
**82289       Bus Arbiter for iAPX 286 Processor Family            c83...
**82258       Advanced Direct Memory Access Coprocessor(ADMA) 01/01/84...
**82335       High-Integration Interface Device For 386SX      c:Nov88...
**82360SL     I/O Subsystem                                   10/05/90...
**82370       Integrated System Peripheral (for 82376)         c:Oct88...
**82371FB/SB  PCI ISA IDE Xcelerator 82371FB/82371SB (PIIX/3) 01/31/95...
**82371MX     Mobile PCI I/O IDE Xcelerator (MPIIX)           11/01/95...
**82371AB     PCI-TO-ISA / IDE Xcelerator 82371AB (PIIX4)     02/17/97...
**82374/82375 PCI-EISA Bridge (82374EB/82375EB, 374SB/375SB)   c:Mar93...
**82378       System I/O (SIO) (82378IB and 82378ZB)           c:Mar93...
**82379AB     System I/O-APIC (SIO.A)                           <Dec94...
**82380       32-bit DMA Controller w/ Integrated Peripherals 02/01/87...
**82380FB/AB  PCIset: 82380FB Mobile PCI-to-PCI Bridge(MPCI2) 02/17/97...
**82384       Clock Generator and Reset Interface                  c86...
**82385       32-bit Cache Controller for 80386               09/29/87...
**82385SX     32-bit Cache Controller for 80386SX             01/25/89...
**82395DX     High Performance Smart Cache                    06/18/90...
**82395SX     Smart Cache                                     12/17/90
***Notes:...
**82396SX     Smart Cache                                     12/17/90...
**82485       Turbo Cache (and 485Turbocache)                      c90...
**82489DX       Advanced Programmable Interrupt Controller    10/12/92...
**82495DX/490DX DX CPU-Cache Chip Set                           <Sep91...
**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...
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*PC CHIPS/Amptron/Atrend/ECS/Elpina/etc...
*SIS...
**85C501/502/503 Pentium/P54C PCI/ISA Chipset                <01/09/95
***Notes:...
***Info:...
***Configurations:...
***Features:...
**5101/5102/5103 Pentium/P54C PCI/ISA Chipset                <04/02/95...
**5120           Pentium PCI/ISA Chipset (Mobile)            <01/28/97...
**5501/5502/5503 Pentium/P54C PCI/ISA Chipset                <04/02/95...
**5511/5512/5513 Pentium PCI/ISA                             <06/14/95...
**5571           (Trinity) Pentium PCI/ISA Chipset (75MHz)   <12/09/96...
**5581/5582      (Jessie)  Pentium PCI/ISA Chipset (75MHz)   <04/15/97...
**5591/5592/5595 (David)   Pentium PCI A.G.P. Chipset        <01/09/98...
**5596/5513      (Genesis) Pentium PCI Chipset               <03/26/96...
**5597/5598      (Jedi)    Pentium PCI/ISA Chipset           <04/15/97...
**530/5595       (Sinbad) Host, PCI, 3D Graphics & Mem. Ctrl.<11/10/98...
**540            (Spartan) Super7 2D/3D Ultra-AGP Single C.S.<11/30/99...
**55x            SoC (System-on-chip)                        <03/14/02...
**
**Support chips:
**85C206     Integrated Peripheral Controller [no datasheet]         ?
***Notes:...
**5595       Pentium PCI System I/O                          <12/24/97...
**950        LPC I/O                                         <07/16/99...
**Other:...
**PII/III/Pro...
**Athlon etc...
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*TI (Texas Instruments)...
*UMC...
*Unresearched:...
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*ZyMOS...
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