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LPC47B272

Super I/O Controller

Status: In Production

Features:

  • LPC Interface
  • 8042 Keyboard Controller
  • 100 QPF Packaging
  • 3.3V Operating Voltage
  • 37 GPIO Pins
  • Dual Game Port Interface
  • MPU-401 MIDI Support
  • ISA IRQ to Serial IRQ Conversion
  • 37 GPIO
  • 2 16C550A and NS16C550A Compatible UARTs
  • 1 Multi-Mode Parallel Port with ChiProtectTM, EPP and ECP
  • On-chip 12 mA AT bus drivers
  • 1 Floppy Direct Drive support
  • ISA Plug-and-Play Standard (Version 1.0a) Support
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Overview
Documents
Development Environment
Similar Devices
RoHS Information
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Device Overview

Summary

The LPC47B272 (AMI Keyboard BIOS version of the LPC47B27x) is a 3.3V PC98/PC99 compliant Super I/O controller. It implements the LPC interface and provides fan control through two fan speed control output pins and two fan tachometer input pins.

Its true CMOS 765B core provides 100% compatibility with IBM PC/XTTM and PC/ATTM architectures in addition to providing data overflow and underflow protection. Sophisticated power control circuitry (PCC) incorporated for keyboard, mouse and consumer infrared wake-up events support, as well as multiple low power-down modes. Software Configurable Logic (SCL) is incorporated by the FDC37C669 Floppy Disk Controller for ease of use, which doesn’t require any external filter components.

 Software and register compatible with SMSC's proprietary 82077AA core. The parallel port is compatible with IEEE 1284, EPP, and ECP. The I/O Address, DMA Channel and hardware IRQ of each logical device in the LPC47B272 may be reprogrammed through the internal configuration registers. 

The recommended functionality to support Windows '95 is provided.

Family parts
LPC47B272-MS

Additional Features
    • LPC Interface
    • 8042 Keyboard Controller
    • 100 QPF Packaging
    • 3.3V Operating Voltage
    • 37 GPIO Pins
    • Dual Game Port Interface
    • MPU-401 MIDI Support
    • ISA IRQ to Serial IRQ Conversion
    • 37 GPIO
    • 2 16C550A and NS16C550A Compatible UARTs
    • 1 Multi-Mode Parallel Port with ChiProtectTM, EPP and ECP
    • On-chip 12 mA AT bus drivers
    • 1 Floppy Direct Drive support
    • ISA Plug-and-Play Standard (Version 1.0a) Support
Parametrics
Name
Value
Parallel Port
Yes
GPIO Pins
37
Operating Voltage
3.3V
Op Temp Max
70
Interface
LPC

Documents

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Silicon Product

06/26/2014
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Schematics


Development tools data is currently unavailable.

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RoHS Information

Part Number
Device Weight (g)
Shipping Weight (Kg)
Lead Count
Package Type
Package Width
Solder Composition
JEDEC Indicator
RoHS
China EFUP
LPC47B272-MS
1.689400
4.696970
100
QFP
14x20x2.7
Matte Tin
e3
To see a complete listing of RoHS data for this device, please Click here
Shipping Weight = Device Weight + Packing Material weight. Please contact sales office if device weight is not available.

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