• Ultra Low Forward Voltage Drop
• Excellent High Temperature Stability
• Patented Super Barrier Rectifier Technology
• Soft, Fast Switching Capability
• 150ºC Operating Junction Temperature
• Lead Free By Design, RoHS Compliant (Note 1)
• “Green” Molding Compound (No Br, Sb)

Mechanical Data
• Case: DFN1411-3
• Case Material: Molded Plastic, “Green” Molding Compound. UL Flammability Classification Rating 94V-0
• Moisture Sensitivity: Level 1 per J-STD-020C
• Terminal Connections: See Diagram
• Terminals: Finish - Matte Tin annealed over Copper lead frame. Solderable per MIL-STD-202, Method 208
• Marking Information: See Page 3
• Ordering Information: See Page 3
• Weight: TBD grams (approximate)


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* 3.3 Volt Operation (5V tolerant)
* Programmable Wakeup Event Interface (IO_PME# Pin)
* SMI Support (IO_SMI# Pin)
* GPIOs (14)
* Two IRQ Input Pins
* XNOR Chain
* PC99a, PC2001
* ACPI 2.0 Compliant
* 64-pin STQFP Package
* Intelligent Auto Power Management
* Serial Ports
— One Full Function Serial Port
— High Speed 16C550A Compatible UART with Send/Receive 16-Byte FIFO
— Supports 230k and 460k Baud
— Programmable Baud Rate Generator
— Modem Control Circuitry
* Infrared Communications Controllers
— Two IR Ports
— Multi-Protocol Serial Communications Controllers
— One IrDA v1.2 (4Mbps), HPSIR, ASKIR, Consumer IR Support
— One Consumer IR Port with support for NEC PPM, Phillips RC5 and PME Wake-up Option
— Multiple Base I/O Address options, 15 IRQ Options and
3 DMA Options
* Multi-Mode Parallel Port with ChiProtect™
— Standard Mode IBM PC/XT®, PC/AT®, and PS/2™ Compatible Bidirectional Parallel Port
— Enhanced Parallel Port (EPP) Compatible - EPP 1.7 and EPP 1.9 (IEEE 1284 Compliant)
— IEEE 1284 Compliant Enhanced Capabilities Port (ECP)
— ChiProtect Circuitry for Protection Against Damage Due to Printer Power-On
— 192 Base I/O Address, 15 IRQ and 3 DMA Options LPC Bus Host Interface
— Multiplexed Command, Address and Data Bus
— 8-Bit I/O Transfers
— 8-Bit DMA Transfers
— 16-Bit Address Qualification
— Serial IRQ Interface Compatible with Serialized IRQ Support for PCI Systems
— PCI CLKRUN# Support
— Power Management Event (IO_PME#) Interface Pin

General Description
 The SMSC SIO1000 is a 3.3V PC 99, PC2001, and ACPI 2.0 compliant Super I/O Controller. The
SIO1000 implements the LPC interface, a pin reduced ISA interface which provides the same or better performance as the ISA/X-bus with a substantial savings in pins used. The part also includes 14 GPIO pins.
 The SIO1000 incorporates a 16C550A compatible UART and one Multi-Mode parallel port with
ChiProtect™ circuitry plus EPP and ECP support. The SIO1000 does not require any external filter components, is easy to use and offers lower system cost and reduced board area.
The SIO1000 offers a full 16-bit internally decoded address bus, a Serial IRQ interface with PCI
CLKRUN# support, relocatable configuration ports, and three DMA channel options.
The on-chip UART is compatible with the 16C550A. There is a dedicated Serial Infrared interface UART, which complies with IrDA v1.2 (Fast IR), HPSIR, and ASKIR formats (used by Sharp and other PDAs), as well as Consumer IR. There is a second dedicated Consumer Infrared interface, which complies with NEC PPM and Phillips RC5 formats.
 The parallel port is compatible with IBM PC/AT architectures, as well as IEEE 1284 EPP and ECP. The parallel port ChiProtect™ circuitry prevents damage caused by an attached powered printer when the SIO1000 is not powered. The SIO1000 features Software Configurable Logic (SCL) for ease of use. SCL allows programmable system configuration of key functions such as the parallel port and UART.
 The SIO1000 supports the ISA Plug-and-Play Standard register set (Version 1.0a) and provides the recommended functionality to support Windows operating systems, PC99, and PC2001. The I/O Address, DMA Channel, and Hardware IRQ of each device in the SIO1000 may be reprogrammed through the internal configuration registers. There are multiple I/O address location options, a Serialized IRQ interface, and three DMA channels.


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