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OZ990 Schematic ( PDF Datasheet ) - O2Micro

Teilenummer OZ990
Beschreibung Intelligent Manager Smart PMU/GPIO
Hersteller O2Micro
Logo O2Micro Logo 




Gesamt 5 Seiten
OZ990 Datasheet, Funktion
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 built-
in 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
ORDERING INFORMATION
OZ990S - 28 SSOP
OZ990
Intelligent Manager
Smart PMU/GPIO
GENERAL DESCRIPTION
O2Micro’s OZ990 Smart PMU/GPIO (Power
Management Unit/General Purpose Input Output) unit
allows the implementation of Green PC Desktop
Chipsets in 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/BIOS practically 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.
The OZ990 is an SMBus 1.0 compliant device with 4
Power Control and 16 Programmable General
Purpose I/Os pins flexible for a variety of functions
such as Power Control with sequencing,
programmable inputs/outputs, SMB/SMI interrupt
service,
power-saving,
Suspend/Wakeup,
modularized hardware ID, and Auto LED Flash (ALF)
status display. Other features include hardware-driven
speaker alarm output and Suspend/Wakeup button.
As a Pentium class and x86-based system compatible
device, the OZ990 is a highly cost-effective and
practical solution for today’s notebook and palmtop
computers, pen-based data systems, personal digital
assistants, and portable data-collection terminals.
07/13/00
Copyright 1998 by O2Micro
OZ990-SF-1.6
All Rights Reserved
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