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**82395SX Smart Cache 12/17/90
***Notes:...
**82396SX Smart Cache 12/17/90...
**82485 Turbo Cache (and 485Turbocache) c90...
**82489DX Advanced Programmable Interrupt Controller 10/12/92...
**82495DX/490DX DX CPU-Cache Chip Set <Sep91...
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**HT18 80386SX Single Chip c:Sep91
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**HT44 Secondary Cache c:Jun92...
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**UM82C852 Multi I/O For XT <91
***Info:
The Multi-I/O chip, UM82C852 is an integrated chip of UM82C450,
UM82C11, UM82C8167. This chip is a Multi-I/O for PC/XT and PS2 model
30.
The 82C450 asynchronous communications element (ACE) performs
serial-to-parallel conversion on data characters received from
peripheral devices or modems, and parallel-to-serial conversion of
data characters transmitted by the CPU. The complete status of the ACE
can be read at any time during functional operation by CPU. The
information obtained includes the type and condition of the transfer
operations being performed and error conditions.
The 82C11 parallel port provides the user with a bidirectional
parallel data port that fully supports the parallel Centronics type
printer.
The 82C8167 real time clock includes an addressable real time counter,
56 bits of static RAM with an on chip oscillation circuit which can
generate the 32,768 Hz time base.
The 82C852 is packaged in a 68-pin plastic leaded chip carrier.
***Versions:...
***Features:
o Supports game port
o Supports 2nd serial port
o Centronics printer interface
o Independent control of transmit, receive, line status and data set
interrupts
o Individual modem control signals
o Programmable serial interface characteristics:
— 5, 6, 7 , or 8 bit characters
— Even, odd or no-parity bit generation and detection
— 1, 1-1/2, or 2 stop bit generation
o Milliseconds through month counters for real time clock 56 bits of
RAM
with comparator for comparing the real time counter to the RAM
data
o POWER DOWN input that disables all inputs and outputs
o Disables the chip from the reset of the system for standby low
power operation by use of a POWER DOWN input
o 32,768 Hz crystal for real time clock
o Four-year calendar (no leap year)
o 24-hour clock
**UM82C206 Integrated Peripheral Controller <91...
**UM82c45x Serial/Parallel chips ?...
**Other chips:...
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