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**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...
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**5511/5512/5513 Pentium PCI/ISA                             <06/14/95
***Info:...
***Configurations:...
***Features:...
**5571           (Trinity) Pentium PCI/ISA Chipset (75MHz)   <12/09/96...
**5581/5582      (Jessie)  Pentium PCI/ISA Chipset (75MHz)   <04/15/97...
**5591/5592/5595 (David)   Pentium PCI A.G.P. Chipset        <01/09/98...
**5596/5513      (Genesis) Pentium PCI Chipset               <03/26/96...
**5597/5598      (Jedi)    Pentium PCI/ISA Chipset           <04/15/97...
**530/5595       (Sinbad) Host, PCI, 3D Graphics & Mem. Ctrl.<11/10/98...
**540            (Spartan) Super7 2D/3D Ultra-AGP Single C.S.<11/30/99...
**55x            SoC (System-on-chip)                        <03/14/02...
**
**Support chips:
**85C206     Integrated Peripheral Controller [no datasheet]         ?...
**5595       Pentium PCI System I/O                          <12/24/97...
**950        LPC I/O                                         <07/16/99...
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**W83759/A/F/AF   Advanced VL-IDE Disk Controller                  <96
***Notes:...
***Info:...
***Versions:...
***Features:
o  Pin-to-pin backward compatible with W83759 VL-IDE Interface chip
o  VESA VL-Bus Rev 2.0 compatible, connects directly to local bus and 
   four IDE drives
o  Direct interface to various ANSI ATA/ATA-2/FAST ATA/IDE-2/Enhanced 
   IDE drives
o  Supports 32 and 16-bit data transfer
o  Fully software programmable for command active/recovery time and 
   address setup, data hold time
o  Built-in VL-Bus to 16-bit IO data buffer for special applications
o  Fully supports Enhanced IDE features, including Fast PIO, Mode 3/4, 
   IORDY flow control, prefetch control
o  Supports dual channels to allow up to four drives or non-disk 
   devices (ATAPI CD-ROM and tape drives)
o  Pipeline pre-fetched reads and posted writes for concurrent disk 
   and host operations
o  Independent access timing for all drives (primary/secondary and 
   master/slave)
o  All Enhanced IDE new features may be disabled/enabled via driver 
   or power-on setting by per drive selectability
o  ATA/Mode 0-4 PIO speed may be set as default timing of each drive 
   via power-on jumper setting
o  Supports slave DMA mode protocol (reserved)
o  Supports auto power-down, standby, suspend APM power management 
   state for green PCs
o  Primary and secondary channel can be independently enabled/disabled 
   by software or jumper setting
o  Supports drivers for DOS, Windows, OS/2, UNIX, and Netware
o  Packaged in 100-pin QFP

**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...
*General Sources:...