參數(shù)資料
型號(hào)： PC87332
廠商： National Semiconductor Corporation
英文描述： PC87332VLJ (3.3V/5V) and PC87332VLJ-5 (5V) (SuperI/OTM III Premium Green) Floppy Disk Controller, Dual UARTs, IEEE1284 Parallel Port, and IDE Interfac
中文描述： PC87332VLJ（3.3V/5V的）和PC87332VLJ - 5（5V的）（腸系膜/價(jià)外三高級(jí)綠色）軟盤(pán)控制器，雙UART，IEEE1284并行接口，和IDE的界面
文件頁(yè)數(shù)： 1/98頁(yè)
文件大?。?/td> 887K
代理商： PC87332
TL/C/11930
P
T
I
F
PRELIMINARY
May 1995
PC87332VLJ (3.3V/5V) and PC87332VLJ-5 (5V)
(SuperI/O
TM
III Premium Green)
Floppy Disk Controller, Dual UARTs, IEEE1284
Parallel Port, and IDE Interface
General Description
The PC87332VLJ and PC87332VLJ-5 are single chip solu-
tions for most commonly used I/O peripherals in ISA, EISA
and MicroChannel
é
based computers. It incorporates a
Floppy Disk Controller (FDC), two full featured UARTs, an
IEEE 1284 compatible parallel port and all the necessary
control logic for an IDE interface. Standard PC-AT
é
address
decoding for all the peripherals and a set of configuration
registers are also implemented in this highly integrated
member of the SuperI/O family. Advanced power manage-
ment features and mixed voltage operation in the VLJ ver-
sion make the PC87332 chips an ideal for low-power and/or
portable personal computer applications.
The PC87332 FDC uses a high performance digital data
separator eliminating the need for any external filter compo-
nents. It is fully compatible with the PC8477 and incorpo-
rates a superset of DP8473, NEC
m
PD765 and N82077 flop-
py disk controller functions. All popular 5.25
×
and 3.5
×
flop-
py drives, including the 2.88 MB 3.5
×
floppy drive, are sup-
ported. In addition, automatic media sense and 2 Mbps tape
drive support are provided by the FDC.
The two UARTs are fully NS16450 and NS16550 compati-
ble. Both ports support MIDI baud rates.
(Continued)
Features
Y
Floppy Disk Controller:
D Software compatible with the DP8473, the 765A and
the N82077
D 16-byte FIFO (disabled by default)
D Burst and Non-Burst modes
D Perpendicular Recording drive support
D New high-performance internal digital data separator
(no external filter components required)
D Low-power CMOS with enhanced power-down mode
D Automatic media-sense support
D Supports fast 2 Mbps and standard 1 Mbps/
500 kbps/250 kbps tape drives
Y
Bidirectional Parallel Port:
D Enhanced Parallel Port (EPP) compatible
D Extended Capabilities Port (ECP) compatible, includ-
ing level 2 support
D Bidirectional under either software or hardware
control
D Ability to multiplex FDC signals on parallel port pins
allows use of an external Floppy Disk Drive (FDD)
D Includes protection circuit to prevent damage to the
parallel port when a connected printer is powered up
or is operated at a higher voltage
(Continued)
Block Diagram
TL/C/11930–1
TRI-STATE
é
is a registered trademark of National Semiconductor Corporation.
SuperI/O
TM
is a trademark of National Semiconductor Corporation.
IBM
é
, MicroChannel
é
, PC-AT
é
and PS/2
é
are registered trademarks of International Business Machines Corporation.
C
1995 National Semiconductor Corporation
RRD-B30M65/Printed in U. S. A.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
PC87332VLJ 制造商:Texas Instruments 功能描述:
PC87332VLJ(3.3V/5V) 制造商:未知廠家 制造商全稱:未知廠家 功能描述:and PC87332VLJ-5(5V)(SuperI/O III Premium Green) Floppy Disk
PC87332VLJ-5 制造商:NSC 制造商全稱:National Semiconductor 功能描述:PC87332VLJ (3.3V/5V) and PC87332VLJ-5 (5V) (SuperI/OTM III Premium Green) Floppy Disk Controller, Dual UARTs, IEEE1284 Parallel Port, and IDE Interfac
PC87334 制造商:未知廠家 制造商全稱:未知廠家 功能描述:
PC87334VJG 制造商:NSC 制造商全稱:National Semiconductor 功能描述:SuperI/O 3.3V/5V Floppy Disk Controller, Dual UARTs, Infrared, IEEE1284 Parallel Port, and IDE Interface
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