SIO1028-JZX-TR

Specialized Overview

The SIO1028-JZX-TR is a single-chip LPC I/O device designed for advanced notebook applications. It operates at 3.3V with 5.0V tolerance and complies with PC99, PC01, and ACPI 1.0 standards. The device features an LPC interface supporting bus frequencies from 19.2MHz to 33MHz and includes Serial IRQ compatibility. It integrates three full-function serial ports, including two high-speed NS16C550A compatible UARTs with 16-byte FIFOs and one port with an infrared interface supporting IrDA v1.2 (4Mbps), HPSIR, ASKIR, and Consumer IR. Additional resources include 24 general-purpose I/O pins, two LED drivers, and a watchdog timer. The component is housed in a 64-pin QFN package.

Specialized Feature Summary

• Supports LPC bus frequencies up to 33MHz with Serial IRQ compatibility
• Integrates three serial ports with one dedicated to infrared communications
• Includes 24 general-purpose input/output pins and system management interrupt capability

Specialized Applications

• Advanced notebook computer designs
• LPC-based embedded systems requiring multiple serial interfaces
• Infrared communication modules within portable devices

Specialized Procurement Notes

Verify the specific ordering suffix -TR indicates tape and reel packaging when sourcing components. Confirm that the JZX designation corresponds to the 64-pin QFN package format required for the target PCB layout. Ensure compliance with RoHS standards as indicated in the product identification documentation before finalizing procurement orders.

Specialized Selection Notes

Select this component for designs requiring an LPC interface with integrated serial and infrared capabilities. Verify that the 3.3V operating voltage aligns with the system power rails. Consider the 64-pin QFN footprint constraints during the mechanical design phase. Ensure the host controller supports the specified LPC bus frequency range of 19.2MHz to 33MHz for proper operation.

Specialized Part Context

The SIO1028 belongs to Microchip's Super I/O controller family, specifically tailored for legacy and modern LPC bus architectures. It consolidates peripheral functions typically handled by multiple discrete chips into a single package. This integration reduces board space and simplifies design complexity for portable computing platforms and industrial control applications utilizing standard LPC protocols.

Specialized Replacement Considerations

Check for updated revisions or alternative packages within the SIO1028 series if supply constraints exist. Verify pin-to-pin compatibility with any proposed substitute components to ensure seamless integration without redesigning the motherboard layout or firmware configuration.