SIO1028-JZX

Specialized Overview

The SIO1028-JZX is a single-chip LPC I/O device designed for advanced notebook applications. It operates at 3.3V with 5V tolerance and complies with PC99, PC01, and ACPI 1.0 standards. The component features an LPC interface supporting bus frequencies from 19.2MHz to 33MHz. It integrates three full-function serial ports, including two high-speed NS16C550A compatible UARTs with 16-byte FIFOs and one port with infrared capabilities. Additional resources include 24 general-purpose input/output pins, two LED drivers, a watchdog timer, and support for Serial IRQ and programmable wake-up events. The device is housed in a 64-pin QFN package.

Specialized Feature Summary

• Supports LPC bus frequencies up to 33MHz
• Includes three serial ports with IrDA v1.2 compliance
• Provides 24 general-purpose input/output pins

Specialized Applications

• Advanced notebook I/O designs
• LPC-based embedded systems
• Infrared communication interfaces

Specialized Procurement Notes

Verify the specific ordering suffix against official Microchip documentation to confirm packaging type. The base model typically denotes standard tray packaging, while the -TR suffix indicates tape and reel options. Confirm RoHS compliance status through current datasheets or environmental reports before procurement.

Specialized Selection Notes

Select this component for designs requiring integrated Super I/O functionality on an LPC bus. Ensure the system supports the required 3.3V operating voltage and 5V tolerant inputs. Verify that the available GPIO count and serial port configurations meet the specific application requirements.

Specialized Part Context

This part belongs to the SIO1028 family of Super I/O controllers manufactured by Microchip Technology. It serves as a legacy I/O solution for platforms utilizing the Low Pin Count (LPC) interface standard. The JZX suffix specifically identifies the 64-pin Quad Flat No-leads (QFN) physical package configuration.

Specialized Replacement Considerations

Consult Microchip's official product selector tools for direct replacements. Verify pinout compatibility and register-level software migration efforts when considering alternative Super I/O devices.