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**82496/491     Cache Controller / Cache RAM (for P5 Pentium) 03/22/93
***Notes:...
***Info:...
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**82497/492   Cache Controller / Cache RAM (for P54 Pentium)    <Nov94...
**82498/493   Cache Controller / Cache RAM (for P54 Pentium)    <Nov94...
**
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**450NX  (?)            06/29/98:...
**?????  (Profusion)    c:99...
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**TACT82000   3-Chip 286 [no datasheet]                            c89
***Notes:...
**TACT82411   Snake  Single-Chip AT Controller                     c90...
**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...
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**W83757          SUPER I/O  CHIP                                  <92
***Info:
GENERAL  DESCRIPTION 

The W83757 is a super multi  I/O chip that combines the functions of a
Floppy Disk Drive adapter, serial (UART)/parallel adapter, IDE bus and
game  port.   The W83757's  disk  drive  adapter  functions include  a
standard   Floppy  Disk  Drive   controller,  data   separator,  write
precompensation  circuit,  decode logic,  data  rate selection,  clock
generator,  drive interface  control logic,  interrupt and  DMA logic,
thus greatly  reducing the number of components  required to interface
floppy disk  drives. As a UART,  the chip supports  serial to parallel
conversion on data  characters received from a peripheral  device or a
MODEM, and  parallel to serial conversion on  data characters received
from the CPU. The CPU can read  the complete status of the UART at any
time  during operation.  The UART  includes a  programmable  baud rate
generator, complete MODEM control capability and a processor-interrupt
system.  As a parallel port, the W83757 provides the user with a fully
bidirectional parallel centronics-type  printer interface. Besides the
above functions, this chip also supports two Embedded Hard Disk Drives
(AT bus interface) and a game port decoder.
***Versions:...
***Features:...
**W83767F         ??           Multi I/O  [no datasheet]
**W83777F/87F     Power I/O   (Multi I/O)                          <95
***Info:...
***Versions:...
***Features:...
**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...
**
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