PC87332VLJ-5 NSC [National Semiconductor], PC87332VLJ-5 Datasheet - Page 2
PC87332VLJ-5
Manufacturer Part Number
PC87332VLJ-5
Description
PC87332VLJ (3.3V/5V) and PC87332VLJ-5 (5V) (SuperI/OTM III Premium Green) Floppy Disk Controller, Dual UARTs, IEEE1284 Parallel Port, and IDE Interfac
Manufacturer
NSC [National Semiconductor]
Datasheet
1.PC87332VLJ-5.pdf
(98 pages)
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General Description
The parallel port is fully IEEE 1284 level 2 compatible The
SPP (Standard Parallel Port) is fully compatible with ISA
EISA and MicroChannel parallel ports In addition to the
SPP EPP (Enhanced Parallel Port) and ECP (Extended Ca-
pabilities Port) modes are supported by the parallel port
All IDE control signals are provided by the PC87332 Only
external signal buffers are required to implement a complete
IDE interface
A set of eight configuration registers are provided to control
various functions of the PC87332 These registers are ac-
cessed using two 8-bit wide index and data registers The
ISA I O address of the register pair can be relocated using a
power-up strapping option
When idle advanced power management features allows
the PC87332 to enter extremely low power modes under
hardware or software control The PC87332VLJ can oper-
ate from a 5V or a 3 3V power supply An unique I O cell
structure allows the PC87332VLJ to interface directly with
5V external components while operating from a 3 3V power
supply
(Continued)
2
Features
Y
Y
Y
Y
Y
Y
UARTs
IDE Control Logic
Address Decoder
Enhanced Power Management
Mixed Voltage Support
General
Software compatible with the PC16550A and
PC16450
MIDI baud rate support
All IDE control signals Only external signal buffers
required to implement full IDE interface
Provides selection of all primary and secondary ISA
addresses including COM1– 4 and LPTA– C
Special configuration registers for power-down
Enhanced programmable power-down FDC
command
Auto power-down and wake-up modes
3 special pins for power management
Typical current consumption during power-down is
less than 10 A
Reduced pin leakage current
Supports standard 5V operation
Supports 3 3V operation
Supports mixed internal 3 3V operation with 3 3V 5V
external configuration
100% compatible with ISA EISA and MicroChannel
architectures
100-Pin PQFP package is pin compatible with the
PC87312 and PC87322VF
(Continued)
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