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LPC47N252 - Advanced Notebook I/O Controller with On-Board FLASH

General Description

The LPC47N252 is a 208-pin 3.3V LPC-based ACPI 1.0 and PC99/PC2001 compliant Notebook I/O Controller with Fast Infrared for mobile applications.

LPC47N252 BLOCK DIAGRAM.

Key Features

  • 3.3V Operation with 5V Tolerant Buffers.
  • ACPI 1.0b , PC99/PC2001 Compliant.
  • LPC Interface with Clock Run Support.
  • Serial IRQ Interface Compatible with Serialized IRQ Support for PCI Systems.
  • 15 Direct IRQs.
  • Four 8-Bit DMA Channels.
  • ACPI SCI Interface.
  • nSMI.
  • Shadowed write only registers.
  • Internal 64K Flash ROM.
  • Programmed From Direct Parallel Interface, 8051, or LPC Host.
  • 2k-Byte Lockable Boot Block.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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LPC47N252 PRELIMINARY _ Advanced Notebook I/O Controller with On-Board FLASH FEATURES § 3.3V Operation with 5V Tolerant Buffers § ACPI 1.0b , PC99/PC2001 Compliant § LPC Interface with Clock Run Support − Serial IRQ Interface Compatible with Serialized IRQ Support for PCI Systems − 15 Direct IRQs − Four 8-Bit DMA Channels − ACPI SCI Interface − nSMI − Shadowed write only registers § Internal 64K Flash ROM − Programmed From Direct Parallel Interface, 8051, or LPC Host − 2k-Byte Lockable Boot Block − Can be Programed Without 8051 Intervention § Three Power Planes − Low Standby Current in Sleep Mode − Intelligent Auto Power Management for Super I/O § ACPI Embedded Controller Interface § Configuration Register Set Compatible with ISA Plug-and-Play Standard (Version 1.