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**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...
**
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**440 series:...
**450NX (?) 06/29/98:...
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*OPTi...
**82C898 System/Power Management Controller (non-cache)c:Nov94
***Notes:...
***Info:
Overview
The 82C898 provides a highly integrated solution for fully compatible,
high performance PC/AT platforms. The 82C898 supports 486SX/DX/DX2/DX4
and P24T microprocessors in the most cost effective and power
efficient designs available today. For high-end system applications,
this device offers optimum performance for systems running up to
50MHz.
Based fundamentally on OPTi’s proven 82C801 and 82C802 design
architectures, the 82C898 adds additional memory configurations and
extensive power management control for the processor and other
motherboard components.
The 82C898 supports the latest in write-back processor designs from
Intel, AMD, and Cyrix, as well as supporting the AT bus and VESA local
bus for compatibility and performance. It also includes an 82C206
Integrated Peripherals Controller (IPC), all in a single 208-pin PQFP
(Plastic Quad Flat Pack) for low cost.
Power Management
Figure 2-1 [see datasheet] exemplifies the flexibility of an
82C898/82C602-based designs GREEN strategy. System designs can easily
accommodate both SLe and non-SLe CPUs. If an Intel non-SLe CPU is
used, SMI#, SMIAOT#, and FLUSH# are no connects. One design can easily
accommodate both types of processors with minimal changes for
upgrades.
***Configurations:...
***Features:...
**
**Support Chips:
**82C601/2 Buffer Devices <Nov94...
**82C822 PCIB (VLB-to-PCI bridge) c:94...
**Other:...
*PC CHIPS/Amptron/Atrend/ECS/Elpina/etc...
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*Symphony...
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*Unresearched:...
*VIA...
*VLSI...
**VL82C114 Combination I/O chip ?
***Info:...
***Versions:...
***Features:
o Integrated peripheral controller that interfaces with several of
VLSI's Single Chip System/ISA Bus controllers
- VL82C480
- VL82C481
- VL82C486
- VL82C310
- VL82C311
- VL82C311L
o Backwards compatible with the industry standard VL82C113A
o 146818A-Compatible real-time clock
o 114 additional bytes of battery-backed CMOS RAM
o AT-compatible keyboard controller with integrated PS/2 mouse
support
o Processor to ISA bus address latches and buffers, which support
16- and 32-bit processors.
o Supports processors with write-back cache controllers
o Real-time clock can be relocated via SA[15:0] address registers
o Includes ISA bus refresh counters for decoupled refresh
o 1.0-micron CMOS
o 100-lead MQFP (Metric Quad Flat Pack)
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**Not sure if they actually exist...
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