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**82489DX       Advanced Programmable Interrupt Controller    10/12/92
***Notes:...
***Info:...
***Versions:...
***Features:
o   Advanced Interrupt Controller for 32-Bit Operating Systems
o   Solutions for Multiprocessing Interrupt Management
o   Dynamic Interrupt Distribution for Load Balancing in MP Systems
o   Separate Nibble Bus (Interrupt Controller Communications (ICC) 
    Bus) for interrupt Messages
o   Inter-Processor Interrupts
o   Various Addressing Schemes - Broadcast, Fixed, Lowest Priority, 
    etc.
o   Compatibility Mode with 8259A
o   32-Bit Internal Registers
o   Integrated Timer Support
o   33 MHz Operation
o   123-Lead PQFP Package, Package Type KU
    
**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...
**SL9250  Page Mode Memory Controller (16/20MHz 8MB Max)        <oct88
***Info:...
***Versions:...
***Features:...
**SL9350  Page Mode Memory Controller (16/20/25MHz 16MB Max)    <oct88...
**Other:...
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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:...
**TACT84500   AT Chip Set (486, EISA) [no datasheet, some info]    c91...
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