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Product Detailed Parameters
- Description：LPC SUPER I/O
- Series：*
- Mfr：SMSC
- Package：Bulk
- Number of I/O：-
- Interface：-
- Interrupt Output：-
- Features：-
- Output Type：-
- Current - Output Source/Sink：-
- Clock Frequency：-
- Voltage - Supply：-
- Operating Temperature：-
- Mounting Type：-
- Package / Case：-
- Supplier Device Package：-
- Grade：-
- Qualification：-
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Overview
The LPC47M262-NU is a Super I/O controller manufactured by SMSC, designed for PC and notebook applications. It integrates hardware monitoring capabilities and supports the Low Pin Count (LPC) interface. The device operates at 3.3 volts with 5-volt tolerant inputs. Key features include ACPI compliance, programmable wake-up events, system management interrupt support, and multiple general-purpose input/output pins. It includes serial ports, parallel port functionality, and floppy disk controller logic licensed from CMOS 765B.
Feature Summary
- Integrates hardware monitoring block for system thermal and voltage supervision
- Supports programmable wake-up event interface via IO_PME pin
- Includes intelligent auto power management and system management interrupt support
- Provides dual game port interface and MPU-401 MIDI support
Applications
- Personal computer motherboard design
- Notebook computer embedded controllers
- Industrial control systems requiring hardware monitoring
Procurement Notes
Verify the manufacturer origin as SMSC or its successor entities due to corporate acquisitions. Confirm the package type matches the NU suffix designation. Ensure compatibility with the target system's LPC bus signaling levels and ACPI requirements before integration.
Selection Notes
Select this component when a combined Super I/O and hardware monitoring solution is required for legacy PC architectures. Consider the specific pin count and GPIO availability against the system's peripheral needs. Verify that the integrated floppy controller and parallel port features align with the board's connectivity specifications.
Part Context
This part belongs to the LPC47M series of Super I/O controllers. These devices are commonly used to replace discrete I/O chips on motherboards. The series typically offers varying levels of peripheral integration while maintaining compatibility with standard PC interfaces and power management protocols.
Replacement Considerations
Check for direct replacements within the LPC47M family or updated revisions from Microchip Technology, which acquired SMSC's embedded control products. Ensure pin-to-pin compatibility and register-level software compatibility if substituting.
