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
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
