GENERAL DESCRIPTION
O2Micro’s OZ990 Smart PMU/GPIO (Power Management Unit/General Purpose Input Output) unit
allows the implementation of Green PC Desktop Chipsetsin notebook designs at considerably lower cost than conventional methods while closing the technology gap between desktop and notebook computers by offering an extensive number of powerful power management and general purpose I/O features. With the OZ990 stand-alone PMU capability, the ability to provide the  One-Shot Design for PMU/BIOSpractically eliminates the need to redesign PMUs to match the ever-changing core logic chipsets. The OZ990 provides the perfect solution for leading
notebook vendors to stay ahead of the competition. 

FEATURES
•  SMBus 1.0 Compliant
•  Support Pentium class and x86-based designs
•  PMU, GPIO, and Alternative PMU modes
•  WAKE output and Suspend Status input operates synchronously with PMU in notebook chipsets
•  LOW power-saving Suspend mode
•  Hardware Debounced Wakeup/Suspend input as pushbutton
•  4 Power Control programmable outputs with builtin Power Sequencing at 10 ms to 1 second
programmable intervals
•  Optional Wakeup-Disable inputs
•  Optional Power-On inputs
•  8 programmable interrupt inputs for SMIEVENT or SMBALERT#
•  8 Suspend/Wakeup edge-triggered programmable inputs
•  20 possible programmable edge-sensitive General Purpose Inputs/Outputs
•  8 Auto LED Flash(ALF) programmable outputs with 10% or 50% duty cycles
•  LOW power hardware driven speaker alarm output
•  Up to 6 programmable unique addresses for device cascade
•  8 power-on modularized hardware ID programmable inputs
•  32KHz operating frequency
•  5 V tolerant inputs
•  Supports both 3.3 V and 5 V operating environments
•  Software programming kit available