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**82495DX/490DX DX CPU-Cache Chip Set                           <Sep91
***Notes:...
***Info:...
***Configurations:...
***Features:...
**82495XP/490XP Cache Controller / Cache RAM (for i860)       06/05/91...
**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...
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**UM8881/8886  HB4 PCI Chipset "Super Energy Star Green"[no dsheet]c94
***Notes:...
***Configurations:...
**UM8890       Pentium chipset [no datasheet]                        ?...
**
**Support Chips:
**UM82152      Cache Controller (AUStek A38152 clone)              <91...
**UM82C852     Multi I/O For XT                                    <91...
**UM82C206     Integrated Peripheral Controller                    <91...
**UM82c45x     Serial/Parallel chips                                 ?...
**Other chips:...
*Unresearched:...
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**W83757          SUPER I/O  CHIP                                  <92
***Info:...
***Versions:...
***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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