OZ998

Features: • SMBus, version 1.0, compliant• Intel PAS Protected Storage support• Support Pentium and x86-based designs• Support SMBus Q-Buffering via PWRGD• Support SMBus selector for dual/triple DIMMs• 32KHZ input clock or Crystal input• Support 2 differen...

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OZ998 Picture
SeekIC No. : 004438876 Detail

OZ998: Features: • SMBus, version 1.0, compliant• Intel PAS Protected Storage support• Support Pentium and x86-based designs• Support SMBus Q-Buffering via PWRGD• Support SMBu...

floor Price/Ceiling Price

Part Number:
OZ998
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Upload time: 2024/11/7

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Product Details

Description



Features:

• SMBus, version 1.0, compliant
• Intel PAS Protected Storage support
• Support Pentium and x86-based designs
• Support SMBus Q-Buffering via PWRGD
• Support SMBus selector for dual/triple DIMMs
• 32KHZ input clock or Crystal input
• Support 2 different power planes
• 10 bytes scratch pad registers
• 20 possible edge-sensitive programmable GPIOs per device
• 8 possible Open Drain, Open Collector outputs
• Programmable addresses for cascaded OZ998s
• Supports 3.3V or 5V operation
• Supports 5V tolerant LVTTL inputs (OZ998B)
• LOW power hardware-driven speaker alarm outputs
• SMBALERT# and SMI event outputs
• 8 programmable interrupt inputs for SMI event or SMBALERT#
• 8 Auto LED Flash (ALF) programmable outputs with 10% or 50% duty cycles



Pinout

  Connection Diagram


Specifications

Symbol Parameter Value Units
VCC DC Power Supply Voltage -0.3 to 5.5 V
VIN, VOUT DC Input, Output Voltage -0.3 to VDD + 0.3 V
IIN DC Current Drain VDD and VSS
Pins
±25 mA
TSTG Storage Temperature -40 to +125  
TOPER| Operation Temperature 0 to 70  



Description

O2Micro's OZ998 Multi-DIMM Selector supports the switching between a primary SMBus and 3 other secondary SMBus. This function is particularly useful for DIMM devices and the support of Intel's PAS (Preboot Authentication Service).

In addition, the OZ998 can be configured to support two different power planes with different sets of General Purpose Input/Output (GPIO) signals, which supplements and enhances the power management capability of the chipsets, commonly found in an ACPI (Advanced Configuration of Power Interface) subsystem.

Up to 20 possible GPIOs of OZ998 are available per device, and among those, GPIO[15:8] are programmable to be either positive or negative-edged triggers to generate an SMIEVENT/SMBALERT# to the system.

GPIO[7:0] are programmable to be either a regular TTL level output, open drain or open collector output.

To support over 20 GPIOs through cascading multiple OZ998 devices, configure each individual OZ998 device ID. Up to 8 Auto LED Flash (ALF) are available to drive an LED or speaker at a programmable frequency.

The OZ998 is packaged in a low profile, small 28 pin SSOP.


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