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SIO1028
  • SIO1028

SIO1028

Not Recommended for new designs

The SIO1028 is a single chip LPC I/O device as well as a 3.3V operational (5.0V tolerant), PC 99/2001, and ACPI 1.0 compliant Super I/O Controller. This device includes 24 GPIO pins, support for two LED’s with blinking option and a Watchdog Timer (WDT) with optional output pin. It also has three 16C550A compatible UARTs, one of which includes additional support for a Serial Infrared Interface that complies with IrDA v1.2 (Fast IR), HPSIR, and ASKIR formats, as well as Consumer IR. Family parts SIO1028I-JZX SIO1028I-JZX-TR SIO1028-JZX SIO1028-JZX-TR...

Microchip Technology SIO1028 Product Info

16 April 2026 0

Parameters

BC-Link

No

Parallel Port

No

GPIO Pins

24

Keyboard Scan Matrix

No

PS/2 Ports

0

Operating Voltage [V]

3.3V

Op Temp Max

70

Op Temp Min

0

SM Bus

No

Interface

LPC

Features

  • ACPI 1.0 Compliant
  • LPC Interface
  • 64 STQFP Package
  • 3.3V Operating Voltage
  • 24 GPIO Pins
  • 3 16C550A Compatible UARTs
  • Watchdog Timer

Description

The SIO1028 is a single chip LPC I/O device as well as a 3.3V operational (5.0V tolerant), PC 99/2001, and ACPI 1.0 compliant Super I/O Controller.

This device includes 24 GPIO pins, support for two LED’s with blinking option and a Watchdog Timer (WDT) with optional output pin. It also has three 16C550A compatible UARTs, one of which includes additional support for a Serial Infrared Interface that complies with IrDA v1.2 (Fast IR), HPSIR, and ASKIR formats, as well as Consumer IR.

Family parts
SIO1028I-JZX
SIO1028I-JZX-TR
SIO1028-JZX
SIO1028-JZX-TR

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