LPC47N227TQFP Standard Microsystems (SMSC), LPC47N227TQFP Datasheet - Page 2

• Manufacturer Part Number: LPC47N227TQFP
• Manufacturer: Standard Microsystems (SMSC)

Specifications of LPC47N227TQFP

• Lead Free Status / RoHS Status: Not Compliant

The SMSC LPC47N227 is a 3.3V PC 99 and
ACPI 1.0b compliant Super I/O Controller. The
LPC47N227 implements the LPC interface, a pin
reduced ISA interface which provides the same
or better performance as the ISA/X-bus with a
substantial savings in pins used. The part also
includes 29 GPIO pins.
The LPC47N227 incorporates SMSC’s true
CMOS 765B floppy disk controller, advanced
digital data separator, 16-byte data FIFO, two
16C550 compatible UARTs, one Multi-Mode
parallel port with ChiProtect circuitry plus EPP
and ECP support and one floppy direct drive
support. The LPC47N227 does not require any
external filter components, is easy to use and
offers lower system cost and reduced board
area. The LPC47N227 is software and register
compatible with SMSC’s proprietary 82077AA
core.
The true CMOS 765B core provides 100%
compatibility with IBM PC/XT and PC/AT
architectures and provides data overflow and
underflow protection.
digital data separator incorporates SMSC’s
patented data separator technology allowing for
ease of testing and use. The LPC47N227
supports both 1Mbps and 2Mbps data rates and
vertical recording operation at 1Mbps Data Rate.
The LPC47N227 also features a full 16-bit
internally decoded address bus, a Serial IRQ
interface
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Multiplexed Command, Address and
Data Bus
8-Bit I/O Transfers
8-Bit DMA Transfers
16-Bit Address Qualification
with
PCI
The SMSC advanced
nCLKRUN
GENERAL DESCRIPTION
support,
2
!" 100 Pin TQFP Package and STQFP
relocatable configuration ports and three DMA
channel options.
Both on-chip UARTs are compatible with the
NS16C550.
support for a Serial Infrared Interface that
complies with IrDA v1.2 (Fast IR), HPSIR, and
ASKIR formats (used by Sharp and other PDAs),
as well as Consumer IR.
The parallel port is compatible with IBM PC/AT
architectures, as well as IEEE 1284 EPP and
ECP.
prevents damage caused by an attached
powered printer when the LPC47N227 is not
powered.
The
power control circuitry (PCC).
supports multiple low power down modes. The
LPC47N227 also features Software Configurable
Logic (SCL) for ease of use.
programmable system configuration of key
functions such as the FDC, parallel port, and
UARTs.
The LPC47N227 supports the ISA Plug-and-Play
Standard (Version 1.0a) and provides the
recommended functionaity to support Windows
‘95/’98 and PC99.
Channel and Hardware IRQ of each device in
the LPC47N227 may be reprogrammed through
the internal configuration registers. There are
192 I/O address location options, a Serialized
IRQ interface, and three DMA channels.
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Package
LPC47N227
The parallel port ChiProtect circuitry
Serialized IRQ Support for PCI
Systems
PCI nCLKRUN Support
Power Management Event (nIO_PME)
Interface Pin
One UART includes additional
incorporates
The I/O Address, DMA
sophisticated
SCL allows
The PCC