LPC47S42x Enhanced Super I/O with LPC Interface for Server Applications is a product that operates at 3.3 volts (5V tolerant) and is designed for server applications. It features two floppy disk controllers, a multi-mode parallel port, two UARTs, an 8042 keyboard controller, an SMBus controller, an X-Bus interface, a programmable wakeup event interface, SMI support, GPIOs (39), fan speed control output, fan tachometer input, ISA IRQ to serial IRQ conversion, XNOR chain, PC99 and ACPI 1.0 compliance, ISA plug-and-play compatible register set, and intelligent auto power management.
The SMSC LPC47S42x is an Enhanced Super I/O with an LPC Interface designed for server applications. It operates at 3.3 volts with 5V tolerance and integrates a licensed CMOS 765B Floppy Disk Controller compatible with IBM PC/XT and PC/AT architectures.
The device includes two NS16C550-compatible UARTs, an IrDA interface, a Multi-Mode Parallel Port supporting EPP and ECP modes, and an 8042 Keyboard Controller. It also features sophisticated power control circuitry (PCC) for reduced power consumption and supports the ISA Plug-and-Play Standard.
| Operating Voltage | 3.3 Volt Operation (5V Tolerant) |
|---|---|
| Package Type | 100 Pin QFP package |
| UART Compatibility | NS16C550 Compatible |
| Floppy Controller Core | CMOS 765B Floppy Disk Controller |
| GPIO Count | 39 GPIOs |
The device operates at 3.3 volts and is 5V tolerant.
It supports Standard Mode, Enhanced Parallel Port (EPP), and Enhanced Capabilities Port (ECP).