Note: The LPC47M172 is not recommended for new designs. The LPC47M182 is the suggested replacement device for this product.
Features
- 3.3 Volt Operation (5 Volt Tolerant)
- LPC Interface
- Multiplexed Command, Address and Data Bus
- Serial IRQ Interface Compatible with Serialized IRQ Support for PCI Systems
- ACPI 1.0b/2.0 Compliant
- Programmable Wake-Up Event Interface
- PC99a/PC2001 Compliant
- General Purpose Input/Output Pins (13)
- Fan Tachometer Inputs (2)
- Green and Yellow Power LEDs
- ISA Plug-and-Play Compatible Register Set
- Motherboard GLUE Logic
- 5V Reference Generation
- 5V Standby Reference Generation
- IDE Reset/Buffered PCI Reset Outputs
- Power OK Signal Generation
- Power Sequencing
- Power Supply Turn On Circuitry
- Resume Reset Signal Generation
- Hard Drive Front Panel LED
- Voltage Translation for DDC to VGA Monitor
- SMBus Isolation Circuitry
- CNR Dynamic Down Control
- 2.88MB Super I/O Floppy Disk Controller
- Licensed CMOS 765B Floppy Disk Controller
- Software and Register Compatible with SMSC's Proprietary 82077AA Compatible Core
- Supports One Floppy Drive
- Configurable Open Drain/Push-Pull Output Drivers
- Supports Vertical Recording Format
- 16-Byte Data FIFO
- 100% IBM Compatibility
- Detects All Overrun and Underrun Conditions
- Sophisticated Power Control Circuitry (PCC) Including Multiple Powerdown Modes for Reduced Power Consumption
- DMA Enable Logic
- Data Rate and Drive Control Registers
- 480 Address, Up to Eight IRQ and Three DMA Options
- Enhanced Digital Data Separator
- 2 Mbps, 1 Mbps, 500 Kbps, 300 Kbps, 250 Kbps Data Rates
- Programmable Precompensation Modes
- Keyboard Controller
- 8042 Software Compatible
- 8 Bit Microcomputer
- 2k Bytes of Program ROM
- 256 Bytes of Data RAM
- Four Open Drain Outputs Dedicated for Keyboard/Mouse Interface
- Asynchronous Access to Two Data Registers and One Status Register
- Supports Interrupt and Polling Access
- 8 Bit Counter Timer
- Port 92 Support
- Fast Gate A20 and KRESET Outputs
- Serial Ports
- Two Full Function Serial Ports
- High Speed NS16C550 Compatible UART with Send/Receive 16-Byte FIFOs
- Supports 230k and 460k Baud Programmable Baud Rate Generator
- Modem Control Circuitry
- 480 Address and 15 IRQ Options
- Infrared Port
- Multiprotocol Infrared Interface
- 32-Byte Data FIFO
- IrDA 1.0 Compliant
- SHARP ASK IR
- HP-SIR
- 480 Address, Up to 15 IRQ and Three 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
- 960 Address, Up to 15 IRQ and Three DMA Options
- Interrupt Generating Registers
- Registers Generate IRQ1-IRQ15 on Serial IRQ Interface
- XOR-Chain Board Test
- 128 Pin MQFP Lead-free RoHS Compliant Package, 3.2 mm Footprint
Although the information in this document has been checked and is believed to be accurate, no responsibility is assumed for inaccuracies. SMSC reserves the right to make changes to product descriptions and specifications at any time without notice. Contact your local SMSC sales office to obtain the latest specifications before placing your product order. The provision of this information does not convey any licenses under any patent rights or other intellectual property rights of SMSC or others. All sales are expressly conditional on your agreement to the terms and conditions of the most recently dated version of SMSC's standard Terms of Sale Agreement dated before the date of your order. Products may contain design defects or errors known as anomalies which may cause a product's functions to deviate from published specifications. Anomaly sheets are available upon request. SMSC products are not designed, intended, authorized or warranted for use in any life support or other application where product failure could cause or contribute to personal injury or severe property damage. Any and all such uses without prior written approval of an Officer of SMSC and further testing and/or modification will be fully at the risk of the customer. Copies of this document or other SMSC literature, as well as the Terms of Sale Agreement, may be obtained by visiting SMSC's website at http://www.smsc.com. SMSC and the SMSC logo are registered trademarks of Standard Microsystems Corporation ("SMSC"). Other names mentioned may be trademarks of their respective holders. All claims made herein speak as of the date of this material. The company does not undertake to update such statements.
