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**440 series:
***440FX (Natoma)       05/06/96
Chips:         
[82441FX] (PMC) [82442FX] (DBX) [82371SB] (PIIX3)
CPUs:          Single or Dual P-Pro/P-II
DRAM Types:    FPM EDO BEDO
Mem Rows:      8         
DRAM Density:  16Mbit 64Mbit               
Max Mem:       1GB                  
ECC/Parity:    Both  
AGP speed:     not supported
Bus Speed:     50 60 66    
PCI Clock/Bus: 1/2 PCI 2.1              


***440LX (Balboa)       08/27/97...
***440BX (Seattle)      c:Apr'98...
***440DX (?)            c:?...
***440EX (?)            c:Apr'98...
***440GX (Marlinespike) 06/29/98...
***440ZX & 440ZX-66 (?) 01/04/99...
***440ZX-M (?)          05/17/99...
***440MX (Banister)     05/17/99...
**450NX  (?)            06/29/98:...
**?????  (Profusion)    c:99...
**800 series...
*Headland/G2...
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*Unresearched:...
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*Western Digital...
**WD7600A/LP/LV System Chip Set for 80286 or 80386SX         <11/25/91
***Info:...
***Configurations:...
***Features:...
**WD7700/LP     System Chip Set for 80286 or 80386SX (Cache) <11/25/91...
**WD7855        System controller for 80386SX                <09/25/92...
**WD7900/LP/LV  System Chip Set for 80286 or 80386SX (Cache) <11/25/91...
**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
***Info:...
***Versions:...
***Features:
ADDRESS BUFFER FEATURES
o   Allows WD7SC10A, WD7855, WD8110, WD7710, and WD7910 based designs 
    with WD7620/30 for laptop or notebook systems
o   Will work in three different power supply modes:
    - 3.3V only
    - 5V only
    - Mix mode 3.3V and 5V
o   Direct connect to AT Address Bus SA1:19 and LA17:23 with 24 mA 
    drive
o   Power Management Control (PMC) input MUX 
o   General purpose suspend/resume and power supply control logic
o   Fifteen-bit Power Management Control (PMC) output register and 
    control logic
o   Low power request and resume signal delay simplify the design of 
    the power supply
o   Watchdog timer for system idle detection
o   DRAM WE signal from WD7xc10 inversion and buffering
o   RESIN output generation from reset switch (RSTSW)
o   System Reset generation
o   Chip select decoding for registers in the WD7625LV Data Buffer 
    Function
o   144-pin SQFP package

DATA BUFFER FEATURES
o   Allows WD7SC10A, WD7855, WD7710, and WD7910 based designs with 
    WD7620/30 for laptop or notebook systems
o   Will work in three different power supply modes:
    - 3.3V only
    - 5V only
    - Mix mode 3.3V and 5V
o   Direct connection to AT data bus; 20K integrated pull-up for 
    SD(0:7)
o   Direct connection to IDE data bus
o   Two general purpose 8-bit I/O registers:
    - Register A
    - Register B
o   One general purpose 8-bit I/O Register C, with single bit 
    set/reset control
o   One general purpose 1-bit I/O Register Y0
o   One 4-bit general purpose input only Register Z
o   DRQ multiplexing plus 20K integrated pull-down
o   DACK demultiplexing
o   SMEMR, SMEMW signals plus 22K internal pull-up
o   144-pin SOFP package

**WD8120LV   Super I/O [no datasheet]                                ?
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