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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...
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**SL6012  Memory Mapper for PC-AT (74LS612 compatible)          <Jul87
***Info:...
***Versions:...
***Features:...
**SL9010  System Controller (80286/80386SX/DX, 16/20/25MHz)     <oct88...
**SL9020  Data Controller                                       <oct88
***Info:...
***Versions:...
***Features:...
**SL9025  Address Controller                                    <oct88...
**SL9090  Universal PC/AT Clock Chip                            <oct88...
**SL9250  Page Mode Memory Controller (16/20MHz 8MB Max)        <oct88...
**SL9350  Page Mode Memory Controller (16/20/25MHz 16MB Max)    <oct88...
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