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**450NX  (?)            06/29/98:
Chips:
[82454NX] (PXB) [82453NX] (MUX) 
[82452NX] (RCG) [82451NX] (MIOC) 
[82371EB] (PIIX4E),                            
CPUs:          Single/Dual/Quad P-II Xeon/P-III Xeon
DRAM Types:    FPM EDO 2-way Interleave 4-way Interleave
Mem Rows:      8
DRAM Density:  16Mbit 64Mbit
Max Mem:       8GB
ECC/Parity:    Both
AGP speed:     N/A
Bus Speed:     100
PCI Clock/Bus: 1/3


**?????  (Profusion)    c:99...
**800 series...
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**TACT82411   Snake  Single-Chip AT Controller                     c90
***Notes:...
***Info:...
***Configurations:...
***Features:...
**TACT82S411  Snake+ Single-Chip AT Controller [no datasheet]      c91...
**TACT83000   AT 'Tiger' Chip Set (386)                            c89...
**TACT84500   AT Chip Set (486, EISA) [no datasheet, some info]    c91...
**Other:...
*UMC...
*Unresearched:...
*VIA...
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*Western Digital...
*Winbond...
**W83757          SUPER I/O  CHIP                                  <92
***Info:...
***Versions:
W83757
W83757F   no idea difference
W83757AF  no idea difference

***Features:
o   Compatible with IBM PC AT/XT Disk Drive systems.
o   Supports up to two 3.5", or 5.25“ 360K/720K/ 1.2M or 1.44M Floppy 
    Disk Drives.
o   Emulates NEC765A in IBM environment.
o   Supports variable write precompensation with track selectable 
    capability.
o   Built-in address mark detection circuit to simplify the read 
    electronics.
o   IBM PC system address decoder.
o   Supports up to two Embedded Hard Disk Drives (IDE AT bus).
o   Single 24 MHz crystal input.
o   Fully programmable serial-interface characteristics:
    - 5, 6, 7 or 8-bit characters.
    - even, odd or no parity bit generation and detection
    - 1, 1.5 or 2 stop bit generation.
o   Internal diagnostic capabilities:
    - loopback control for communications link fault isolation
    - break, parity, overrun, framing error simulation.
o   Programmable baud rate generator allows division of any input 
    clock 
    by 1 to (2^16-1) and generates the internal 16 X clock.
o   Compatible with IBM printer port.
o   2u high performance CMOS technology.
o   100-pin QFP.

**W83767F         ??           Multi I/O  [no datasheet]
**W83777F/87F     Power I/O   (Multi I/O)                          <95...
**W83877F         WINBOND I/O (Multi I/O)                          <96...
**W83877TF/TG/TD  WINBOND I/O (Multi I/O)                          c97...
**W83977F/G/AF/AG WINBOND I/O (Multi I/O)                          c97...
**W83977TF        WINBOND I/O (Multi I/O)                          c97...
**W83977EF        WINBOND I/O (Multi I/O)                          <98...
**W83977ATF       WINBOND I/O (Multi I/O)                          <98...
**
**Disk Controller:
**W83759/A/F/AF   Advanced VL-IDE Disk Controller                  <96...
**W83769          Local Bus IDE Solution                           <94...
**
**UARTS:
**W86C250A  UART (equivalent of INS8C250A) [no datasheet]
**W86C450/P Universal Asynchronous Receiver/Transmitter         <Jul89...
**W86C451   I/O controller for IBM PC/AT/XT                     <Jul89...
**W86C452   I/O controller for IBM PC/AT                         Jul89...
**W86C456   I/O controller [no datasheet]                            ?
**W860551/P UART with FIFO and Printer Port Controller             <94...
**
**Other:...
*ZyMOS...
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