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See Technical Specifications

LPC47B272

Super I/O Controller.

Manufacturer:

Microchip Technology, Inc
Mfr.Part #:

LPC47B272
Datasheet:

LPC47B272 Datasheet (PDF)
Interface:

LPC
Voltage - Supply:

3.3V
Mounting Type:

Surface Mount
EDA/CAD Models:

Request Free CAD Models for LPC47B272

Email: [email protected]

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LPC47B272 General Description

TheLPC47B272 (AMI Keyboard BIOS version of the LPC47B27x) is a 3.3V PC98/PC99compliant Super I/O controller. It implements the LPC interface and providesfan control through two fan speed control output pins and two fantachometer input pins.

Itstrue CMOS 765B core provides 100% compatibility with IBM PC/XTTM andPC/ATTM architectures in addition to providing data overflowand underflow protection. Sophisticatedpower control circuitry (PCC) incorporated for keyboard, mouse andconsumer infrared wake-up events support, aswell as multiple low power-down modes. Software Configurable Logic (SCL) is incorporatedby the FDC37C669 Floppy Disk Controller for ease of use, which doesn’t requireany external filter components.

Software and register compatible withSMSC's proprietary 82077AA core. The parallel port is compatible with IEEE1284, EPP, and ECP. The I/O Address, DMA Channel and hardware IRQ ofeach logical device in the LPC47B272 may be reprogrammed through theinternal configuration registers.

Therecommended functionality to support Windows '95 is provided.

Family parts
LPC47B272-MS

Key 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

Microchip Technology, Inc Original Stock

Specifications

Category	Integrated Circuits (ICs)InterfaceSpecialized	Series	-
Applications	-	Interface	LPC
Voltage - Supply	3.3V	Mounting Type	Surface Mount
Base Product Number	LPC47B272