[Home] [This version is outdated, a new version is here]
*Title...
*Search:...
*Read Me/FAQ/General Info...
*_IBM...
*ACC Micro...
*ALD...
*ALi...
*AMD . . . . . . . [no datasheets, some info]...
*Chips & Technologies...
*Contaq  . . . . . [no datasheets, some info]...
*Efar Microsystems [no datasheets, some info]...
*ETEQ...
*Faraday...
*Forex . . . . . . [List only, no datasheets found]...
*Intel...
**82495XP/490XP Cache Controller / Cache RAM (for i860)       06/05/91
***Notes:...
***Info:...
***Features:...
**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...
**HT18          80386SX Single Chip                            c:Sep91
***Info:...
***Configurations:...
***Features:...
**HT21          386SX/286 Single Chip (20 MHz)                 c:Aug91...
**HT22          386SX/286 Single Chip (25 MHz)                 c:Sep91...
**HT25          3-volt Core Logic for 386SX                    c:Dec92...
**HT35          Single-Chip Peripheral Controller [partial info]     ?...
**HTK320        386DX Chip Set                                 c:Sep91...
**HTK340        "Shasta" 486 Chip Set                          c:Jun92...
**Support Chips:
**HT44          Secondary Cache                                c:Jun92...
**Other:...
*HMC (Hulon Microelectronics)...
*Logicstar...
*Motorola...
*OPTi...
*PC CHIPS/Amptron/Atrend/ECS/Elpina/etc...
*SIS...
*Symphony...
*TI (Texas Instruments)...
*UMC...
*Unresearched:...
*VIA...
*VLSI...
*Western Digital...
**WD7900/LP/LV  System Chip Set for 80286 or 80386SX (Cache) <11/25/91
***Notes:...
***Info:...
***Configurations:...
***Features:
****WD7910/LP/LV (System Controller):
o   Software compatible with WD76C10A
o   8Kbyte on-chip cache for 80386SX
    - Direct map or 2 way set-associative
    - Self timed Integrated RAM arrays
    - Programmable non-cacheable regions
    - Diagnostic mode to test Tag and Data Ram
    - Flush command
    - 25 Mhz zero wait state cache hit
o   ROM may be shadowed and/or cached
o   Supports Static CPU for power savings in sleep mode
o   Supports extra wait state for page mode
o   Supports VLBI for high-speed video access
o   Operates at speeds of 16 MHz, 20 MHz and 25 MHz.
o   Interfaces with 80286, or 80386SX CPUs.
o   Supports memory in four banks with 64 Kbits, 256 Kbits, 1 Mbits 
    or 4 Mbits DRAMs. Also supports new 512k x 8,1 M x 16 and 
    2M x 8 DRAM configurations.
o   Page mode zero wait state access at 25 MHz with 70 ns DRAM.
o   Supports up to 16 Mbyte of real memory, or 32 Mbyte of EMS memory.
o   Maintains controlled propagation delay for 80386SX reset.
o   Employs an internal self-tuning delay line for DRAM control.
o   Self-adjusting output drivers minimize output rise/fall time 
    variations and reduces EMI and ground noise.
o   DRAM address multiplexer drives 350 pF with adjustable strength 
    drivers.
o   Main and VGA BIOS may be mapped into one physical PROM.
o   Advanced 64 Kbyte and 128 Kbyte ROM shadowing allows main BIOS 
    and video BIOS shadowing along with 320 Kbyte and 256 Kbyte remap 
    to extended or expanded memory.
o   Offers additional power saving modes:
    - Slow Refresh
    - Stop DMA Clock
o   Parity generation and checking.
o   160-pin PQFP package
o   3.3V low power operation
o   I/O Pin mapping for testability
o   Low power 0.9 micron CMOS technology.

Additional features of WD7910LP only:
o   Supports System Management Interrupt (SMI)·
o   Provides I/O trapping
o   Provides System Activity Monitor (SAM).
o   Provides power control with suspend and resume.
o   Provides processor stop clock.
o   Features CAS before RAS slow refresh for portable applications.
o   Offers automatic processor clock speed switching.
o   3V Suspend to hard disk


****Other Chips:...
****General (Assuming complete chipset is used):...
**WD8110        System controller for 80386DX/486            <11/30/93...
**
**Support Chips:
**WD76C20x   Floppy, RTC, IDE and Support Logic Device       <11/25/91...
**WD76C30x   Perip. Ctrl, Interrupt Multiplex, and Clock Gen <11/18/91...
**WD7615     Desktop Buffer Manager                          <04/15/92...
**WD7625     Desktop Buffer Manager                          <10/01/92...
**WD8120LV   Super I/O [no datasheet]                                ?
**Other Chips:...
*Winbond...
*ZyMOS...
*General Sources:...