2007 - 2014 Microchip Technology Inc. DS00001809A-page 1
Product Features
• 3.3V Operation (5V tolerant)
• LPC Interface
- Multiplexed Command, Address and Data
Bus
- Serial IRQ Interface Compatible with Serial-
ized 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
Microchip'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 Key-
board/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 16C550A 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 Bi-directional 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 QFP RoHS Compliant Package, 3.2 mm
Footprint
LPC47M182
Advanced I/O Controller with Motherboard GLUE Logic