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*Intel...
**IBM PC/XT/AT Chip Sets
***Datasheets:...
***Read Me:...
***Overview (History):...
***Summary of sections:
§1 Lists the various support chips associated with the Intel designed
systems.
§2 Contains the datasheets of chips used in, or related to the
PC/XT *and* datasheets that are related to the AT. Datasheets
between 1975 and 1982 (January) have been included in this section.
The IBM PC was introduced August 12, 1981. The 1981 datasheet
catalog used as a source to write this section is dated January
1981. Since this is quite a long time before the introduction of
the PC, also included, is information sourced from the 1982
datasheet catalog. This is dated January 1982, and does not give
any specifications of the iAPX 286 (80286) architecture.
This should hopefully give an idea of what chips were available
from Intel around the introduction of the IBM PC.
§3 Is a list of chips actually used in the IBM PC/XT
§4 Is a continuation of datasheets of chips used in the IBM PC/XT/AT
from 1982 to 1984. Only chips that are actually used by one of the
IBM systems are included for brevity. This section is cumulative on
section 2. Specifically, for a given chip, this section includes
information sourced from all datasheets before 1984.
§5 Is a list of chips actually used in the IBM AT
§6 Is like §4, but is up to 1989.
***§1: Intel MCS-8x/iAPX Microprocessor families:...
***§2: Intel Chip Specifications 1975 - Jan 1982:...
***§3: IBM PC/XT: Original system chips: ...
***§4: Intel Chip Specifications Jan 1982 - Jan? 1984...
***§5: IBM AT: Original system chips:...
***§6: Intel Chip Specifications Jan? 1984 - 1989...
**82230/82231 High Integration AT-Compatible Chip Set(ZyMOS) c:Aug88...
**82310 Micro Channel Compatible Peripheral Chip Set 04/21/88...
**82311 High Integration MCA Compatible Perip. Chip Set 11/14/88...
**82320 MCA compatible Chipset [no datasheet] 04/10/89...
**82340DX Chip Set (VLSI) (82346/82345/82355) 01/08/90...
**82340SX Chip Set (VLSI) (82343/82344) 01/25/89...
**82350 EISA Chip Set 07/10/89...
**82350DT EISA Chip Set 04/22/91...
**82420TX/ZX PCIset (for 486) TX (Saturn), ZX (Saturn II) c:Nov92...
**82420EX PCIset (for 486) EX (Aries) (82425EX/82426EX) <Dec94
***Notes:...
***Info:...
***Configurations:
82425EX PCI System Controller (PSC)
82426EX ISA Bridge (IB)
+ 82091AA (AIP)
The AIP is not technically part of the chipset, see the 82091AA
section for details.
It appears that there exists a datasheet that claims 50 MHz bus
operation. Section 9 of the '94 datasheet "Revision history" contains:
"Revision -003 of the 82420EX PCIset data sheet contains updates and
improvements to the original version. A revision summary of changes
is listed below.
The sections significantly revised since revision -001 are:
Global The 82420EX PCIset supports host bus operations of 25 and 33
MHz. All references to 50 MHz support have been removed.
"
Indicating the early datasheet was incorrect, or the feature was plan-
ned but never implemented.
The following link provides a brief summary of two different versions
of the chipset itself. There has been no datasheet found that mentions
these problems:
http://www.os2forum.or.at/english/info/os2hardwareinfo/pci_chips.html
Archived:
https://web.archive.org/web/20040803185002/http://www.os2forum.or.at/english/info/os2hardwareinfo/pci_chips.html
***Features:...
**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...
**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...
*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:...
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