LPC47N227-MT

Product Summary

The SMSC LPC47N227 is a 3.3V PC 99 and ACPI 1.0b compliant Super I/O Controller. 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 compatibparallel 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. The SMSC advanced digital data separator incorporates SMSC’s patented data

Parametrics

Specifications of LPC47N227-MT
Lead Free Status / RoHS Status	Compliant

Features

3.3 Volt Operation (5V Tolerant)PC99 and ACPI 1.0b CompliantProgrammable Wakeup Event Interface (nIO_PMEPin)SMI Support (nIO_SMI Pin)GPIOs (29)Two IRQ Input PinsXNOR ChainIntelligent Auto Power Management2.88MB Super I/O Floppy Disk Controller-Licensed CMOS 765B Floppy Disk ControllerSoftware and Register Compatible with-SMSC''''s Proprietary 82077AA CompatibleCore-Supports One Floppy Drive DirectlyConfigurable Open Drain/Push-Pull Output-DriversSupports Vertical Recording Format--16-Byte Data FIFO100% IBM Compatibility--Detects All Overrun and Underrun ConditionsSophisticated Power Control Circuitry (PCC)-Including Multiple Powerdown Modes forReduced Power Consumption-DMA Enable LogicData Rate and Drive Control Registers--Swap Drives A and BNon-Burst Mode DMA Option--48 Base I/O Address, 15 IRQ and 3 DMAOptions-Forceable Write Protect and Disk ChangeControlsFloppy Disk Available on Parallel Port Pins (ACPICompliant) Enhanced Digital Data Separator - 2 Mbps, 1 Mbps, 500 Kbps, 300 Kbps, 250 Kbps Data Rates - Programmable Precompensation Modes The SMSC LPC47N227 is a 3.3V PC 99 and ACPI 1.0b compliant Super I/O Controller. 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. The SMSC advanced digital data separator incorporates SMSC’s patented data SMSC DB – LPC47N227 PRODUCT PREVIEW FEATURES Serial Ports Two Full Function Serial Ports - - High Speed NS16C550 Compatible UARTs with Send/Receive 16-Byte FIFOs - Supports 230k and 460k Baud Programmable Baud Rate Generator - - Modem Control Circuitry Infrared Communications Controller - IrDA v1.2 (4Mbps), HPSIR, ASKIR, Consumer IR Support - 2 IR Ports 96 Base I/O Address, 15 IRQ Options and 3 - DMA Options Multi-Mode Parallel Port with ChiProtect - Standard Mode IBM PC/XT, PC/AT, and PS/2 Compatible Bidirectional Parallel Port - Enhanced Parallel Port (EPP) Compatible - EPP 1.7 and EPP 1.9 (IEEE 1284 Compliant) - IEEE 1284 Compliant Enhanced Capabilities Port (ECP) - ChiProtect Circuitry for Protection Against Damage Due to Printer Power-On - 192 Base I/O Address, 15 IRQ and 3 DMA Options LPC Bus Host Interface Multiplexed Command, Address and Data Bus - - 8-Bit I/O Transfers 8-Bit DMA Transfers - - 16-Bit Address Qualification Serial IRQ Interface Compatible with - Serialized IRQ Support for PCI Systems PCI nCLKRUN Support - Power Management Event (nIO_PME) - Interface Pin 100 Pin TQN, lead-free RoHS compliant package and 100 Pin STQN, lead-free RoHS

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