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**82371FB/SB  PCI ISA IDE Xcelerator 82371FB/82371SB (PIIX/3) 01/31/95
***Notes:...
***Info:...
***Versions:...
***Features:...
**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
***Notes:...
***Info:...
***Versions:...
***Features:...
**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...
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*TI (Texas Instruments)...
**SN74LS610/2 IBM AT: SN74LS610, SN74LS612 Memory Mappers          <84
***Notes:...
***Info:...
***Versions:...
***Features:...
**TACT82000   3-Chip 286 [no datasheet]                            c89...
**TACT82411   Snake  Single-Chip AT Controller                     c90...
**TACT82S411  Snake+ Single-Chip AT Controller [no datasheet]      c91...
**TACT83000   AT 'Tiger' Chip Set (386)                            c89
***Info:...
***Configurations:...
***Features:
o   High-Speed 1-um CMOS Technology Supports System Speeds up to 
    33 MHz
o   Fully AT-Compatible 386 Three-Chip SX, Four-Chip DX Solutions
o   Only Four Additional Logic Chips Needed
o   Major Features Programmable Through Software
o   TACT83442 Memory Control Unit (MCU)
    - Cascadable up to Eight Devices
    - Address Range of up to 32M Byte Per Device, 256M Byte Fully 
      Cascaded
    - Supports 256K-, 1M-, and 4M-Bit DRAMs in Normal, Page, Word-
      interleave, and Page Block-interleave Modes
    - Programmable DRAM Timing Parameters
    - Supports up to Two Memory Banks for 32-Bit Systems and Four 
      Banks for 16-Bit Systems
    - Can Directly Drive up to 36 DRAM Devices
    - Shadow RAM Available Between 0C 0000h and 0F FFFFh
    - Contains Global Page Mapping RAM Allowing Remap of 
      - 64K-Byte Memory Blocks Above 1M Byte
      - 16K-Byte Memory Blocks Below 1M Byte
o   TACT83443 AT Bus Interface Unit (ATU)
    - Internal Clock Switching Between Two Independent Frequencies 
      Controlled by Software
    - Asynchronous AT Bus Interface With Write Buffer Option
    - Full AT Direct-Drive Capability
    - Extended Direct Memory Access Mode for 32-Bit Operation
    - Fast CPU Reset and A20 GATE Modification
    - Numeric Processor Interface for 387SX, 387DX, and Weitek 3167
    - Integrates All Essential AT Peripherals
    - Real Time Clock With 128-Byte CMOS RAM
o   TACT83441 Data Path Unit (DPU)
    - 8- and 16-Bit Data Bus Sizing
    - Data Path Cascadable to 32 Bits
    - Write Buffer Capability for AT Bus Access
    - Supports Posted Write Operations From Cache Controller
    - Parity Generation and Checking Logic

**TACT84500   AT Chip Set (486, EISA) [no datasheet, some info]    c91...
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