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**82497/492 Cache Controller / Cache RAM (for P54 Pentium) <Nov94
***Notes:...
***Info:...
***Configurations:...
***Features:...
**82498/493 Cache Controller / Cache RAM (for P54 Pentium) <Nov94...
**
**Later chipsets (basic spec):
**440 series:...
**450NX (?) 06/29/98:...
**????? (Profusion) c:99...
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**82C381/382 HiD/386 (386DX) c:89
***Info:...
***Configurations:...
***Features:
o 100% IBM PC/AT Compatible 386/AT Chipset for 25 and 33 MHz systems
o Designed to provide the most cost-effective, high performance
Cache based 386/AT with high integration
o Advanced Memory Controller design
- Direct support for 64KB, 128KB and larger cache subsystems
- Implements sophisticated DRAM Controller with Paging in odd
banks and 2/4 way Page Interleaving with even banks
- BIOS Shadow Ram
- 256K Relocation to top of Memory
- Non-Cacheable programmable memory regions, and GateA20 support
o Software configurable Command Delays, Wait States and Memory
Organization
o Synchronous AT Bus Clock with programmable CPU Clock divide
options: by 2, by 3 and by 4
o Complete AT/386 system board requires only 20 components plus
memory
o Single EPROM configuration
o Targeted at very high performance 32-bit power PCs and file-server
designs
o Low power, high speed 1.2u CMOS Technology
**82C391/392 386WB PC/AT Chipset (386DX) <Dec90...
**82C461/462 Notebook PC/AT chipset [no datasheet] ?...
**82c463 SCNB Single Ship Notebook c:92...
**82c465MV/A/B Single-Chip Mixed Voltage Notebook Solution <Oct97...
**82C481?/482? HiP/486 & HiB/486 [no datasheet] Oct89...
**82C491/392 486WB PC/AT Chipset <04/21/91...
**82C493/392 486SXWB <10/21/91...
**82C495SX/392SX LCWB PC/AT chipset [no datasheet] ?...
**82C495SLC DXSLC 386/486 Low Cost Write Back c:92...
**82C495XLC PC/AT Chip Set c:93...
**82c496A/B DXBB PC/AT Chipset <Mar92...
**82C496/7 DXBB PC/AT Chipset (Cached) <01/16/92...
**82C498 DXWB PC/AT chipset [no datasheet] ?...
**82C499 DXSC DX System Controller c:93...
**82C546/547 Python PTM3V c:94...
**82C556/7/8 Viper [no datasheet] ?...
**82C556/7/8N Viper-N Viper Notebook Chipset <05/25/95...
**82C556M/7M/8E Viper-N+ Viper Notebook Chipset c:96...
**82C566/7/8 Viper-Max Chipset Scalable MultiMedia PC Solution ?...
**82C571/572 486/Pentium c:93...
**82C576/7/8 Viper Xpress [no datasheet] ?...
**82C576/8/9 Viper XPress+ [no datasheet, some info] <01/16/97...
**82C596/597 PTMAWB Pentium Adaptive Write-back (Cobra) c:93...
**82C650/1/2 Discovery (Pentium Pro) [no datasheet] ?...
**82C681/2/6/7 386/486WB EISA c:92...
**82C683 386/486AWB EISA [no datasheet] ?...
**82C693/6/7 Pentium uP Write Back Cache EISA c:93...
**82C700 FireStar c:97...
**82C701 FireStar Plus c:97...
**82C750 Vendetta [no datasheet] ?...
**82c801 SCWB2 DX Single Chip Solution c:92...
**82C802 SCWB2 PC/AT Single Chip [no datasheet] ?...
**82C802G/GP System/Power Management Controller (cached) c:93...
**82C895 System/Power Management Controller (cached) c:Sep94
***Notes:...
***Info:
Overview
The 82C895 provides a highly integrated solution for fully compatible,
high performance PC/AT platforms. This chipset will support 486SX/
DX/DX2/DX4 and P24T microprocessors in the most cost effective and
power efficient designs available today. For power users, this
chipset offers optimum performance for systems running up to 50MHz.
Based fundamentally on OPTi's proven 82C801 and 82C802 design
architectures, the 82C895 adds additional memory configurations and
extensive power management control for the processor and other
motherboard components.
The 820895 supports the latest 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-compatible Integrated Peripherals Controller (IPC). all in a
single 208-pin PQFP (Plastic Quad Flat Pack) package for low cost.
2.1 Power Management
This block diagram [see datasheet] exemplifies the flexibility of the
82C895/82C602 GREEN strategy. System designs can easily accommodate
both SLe and non-SLe CPUs. If an Intel non-SLe CPU is used, SMI#,
SMIACT#, and FLUSH# are no connects. One design can easily accomm-
odate both types of processors with minimal changes for upgrades.
***Configurations:...
***Features:...
**82C898 System/Power Management Controller (non-cache)c:Nov94...
**
**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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*TI (Texas Instruments)...
*UMC...
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*ZyMOS...
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