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**82396SX Smart Cache 12/17/90
***Notes:...
***Info:...
***Versions:...
***Features:...
**82485 Turbo Cache (and 485Turbocache) c90...
**82489DX Advanced Programmable Interrupt Controller 10/12/92...
**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
***Notes:
Date source: TimelineDateSort7_05.pdf
Information taken from:
1995_Intel_Pentium_Processors_and_Related_Components.pdf*
8249x Cache controllers.pdf**
>* Datasheet dated Oct'93
>** Datasheet undated, whole document dated '95
The info and features section have been solely sourced from the first
source. The second source provides far more detail. Additional
information in the configurations section has been sourced from the
second.
This chip was used on the Pentium 66MHz CPU complexes of Intel's
Xpress platform. Specifically the BXCPUPENT66 (Single 66MHz, eight
82491s) and BXCPU2XPENT (Dual 66 MHz, eight 82491s). Also found on P5
60/66MHz CPU complexes of IBM 9595/PC Server 300/500 systems.
***Info:...
***Configurations:...
***Features:...
**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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*Unresearched:...
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*VLSI...
**VL82C311 SCAMP-DT ?
***Info:...
***Configurations:...
***Features:
o Fully compatible with 286- or 386SX-based PC/AT compatible systems
(VL82C311L is 286 compatible only)
o Up to 25 MHz system clock in a 386SX-based system and up to 20 MHz
in a 286-based system
o Replaces the following peripheral logic on the motherboard:
- Two 82C37A DMA controllers
- 74LS612 memory mapper
- Two 82C59A interrupt controllers
- 82C54 timer
- 82284 clock generator and ready interface
- 82288 bus controller
o Includes:
- Memory/refresh controller
- Port B, and NMI logic
- Bus steering logic
- Parity generation logic
- Parity checking logic
- Turbo control logic
- Staggered refresh to minimize power supply load variations
- Three-state control pin for board level testing
o Memory controller features include:
- Programmable option for page mode or non-page mode operation
- Two-way block interleaving
- Programmable option for zero and one wait state operation
- Capability to drive up to four banks directly
o VL82C310 power saving features include:
- Sleep Mode
- Slow DRAM refresh
- Low power page interleave memory mode
o Supports:
- Up to 16 MB system memory
- LIM EMS 4.0 over entire system memory
- JEIDA IC Memory Card (VL92C310 only)
- VL82C325 (SX) Cache controller
- Four 16-bit wide banks of 256K, 1M, or 4M DRAM or SRAM
- Shadow RAM in 640K to 1M range
- 287 and 387SX numeric coprocessors
- 8- and 16-bit wide BIOS ROMs
- Asynchronous slot bus operation
- Systems with up to 16 MHz backplane operation
- Relocation of video and slot ROMs
o Other advanced features:
- Programmable I/O decode for 10- pr 16-bit addresses
- Hardware configurable setup to minimize custom BIOS requirements
- Programmable drive current to reduce ringing on DRAM and slot
bus interface signals
- Programmable, extendable peripheral cycle
- Capability to disable software coprocessor reset
- Automatic bus speed-up on video access
o 1.0-micron CMOS technology
o 160-lead metric quad flat pack (MQFP)
**VL82C311L SCAMP-DT 286 ?...
**VL82C312 SCAMP Power Management Unit (PMU) ?...
**VL82C315A SCAMP II, Low-Power Notebook Chipset ?...
**VL82C322A SCAMP II, Power Management Unit (PMU) ?...
**VL82C316 SCAMP II, PC/AT-Compatible System Controller ?...
**VL82C323 SCAMP II, 5 Volt Power Management Unit (PMU) ?...
**VL82C380 Single chip 386DX PC/AT Controller +on-chip cache ?...
**VL82C325 VL82C386SX System Cache controller ?...
**VL82C335 VL82C386DX System Cache ctrl. [no d.sheet] ?...
**VL82C315A/322A/3216 Kodiak 32-Bit Low-Voltage Chip Set ?...
**VL82C420/144/146 SCAMP IV [no datasheet, some info] c93...
**VL82C480 System/Cache/ISA bus Controller ?...
**VL82C481 System/Cache/ISA bus Controller c92...
**VL82C486 Single-Chip 486, SC486, Controller ?...
**VL82C425 486 Cache controller ?...
**???????? Cheetah 486, PCI [no datasheet] ?...
**VL82C3216 Bus Expanding Controller Cache with write buffer ?...
**VL82C521/522 Lynx/M ?...
**VL82C530 Eagle Ð c95...
**VL82C541/543 Lynx c95...
**VL82C591/593 SuperCore 590 c94...
**VL82C594/596/597 Wildcat c95...
**I/O Chips:
**VL82C106 Combination I/O chip ?...
**VL82C107 SCAMP Combination I/O chip ?...
**VL82C108 TOPCAT Combination I/O chip ?...
**VL82C110 Combination I/O chip ?...
**VL82C113 SCAMP Combination I/O chip ?...
**VL82C114 Combination I/O chip ?...
**Video: ...
**Disk:...
**Modems:...
**Other:...
**Not sure if they actually exist...
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