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OZ998 데이터시트 PDF




ETC에서 제조한 전자 부품 OZ998은 전자 산업 및 응용 분야에서
광범위하게 사용되는 반도체 소자입니다.


PDF 형식의 OZ998 자료 제공

부품번호 OZ998 기능
기능 Intelligent Manager Smart Multi-DIMM Selector
제조업체 ETC
로고 ETC 로고


OZ998 데이터시트 를 다운로드하여 반도체의 전기적 특성과 매개변수에 대해 알아보세요.



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OZ998 데이터시트, 핀배열, 회로
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
ORDERING INFORMATION
OZ998S - 28 pin SSOP
OZ998
Intelligent Manager
Smart Multi-DIMM Selector
GENERAL 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 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.
07/13/00
©Copyright 2000 by O2Micro
OZ998-SF-2.2
All Rights Reserved
Page 1




OZ998 pdf, 반도체, 판매, 대치품
OZ998
Name
GPIO[7:3]/ID[7:3]
GPIO[10:8]
GPIO[11]
GPIO[12]/
SMB_SEL[0]
Pin No. Type
Input
Drive
Definition
[17:15],
I/O
TTL
12mA
General Purpose I/Os
[13:12]
Fully programmable GPIOs that can be used for a variety of dedicated or specific functions. GPIO[7:3] pins
default as inputs. They are programmable to function as GPI[7:3] inputs, GPO[7:3] outputs, ALF[7:3]
outputs, or ID[7:3] inputs. In addition, if this pin is configured as output, TTL output, Open Drain or Open
collector can be selected. Refer to GPIO Config.1&2 Registers for more details and GPIO Config. Tables
(section 8) for input/output selections.
[20:18]
I/O
TTL
4mA
General Purpose I/Os
Fully programmable GPIOs that can be used for a variety of dedicated or specific functions. Pins
GPIO[10:8] default as inputs. Pins GPIO[10:8] as inputs are programmable to generate SMI/SMB
interrupts. They are also programmable to function as GPI[10:8] inputs, GPO[10:8] outputs. Refer to GPIO
Config.1&2 Registers for more details and GPIO Config. Tables (section 8) for input/output selections.
21 I/O
TTL
4mA
General Purpose I/O
Fully programmable GPIO that can be used for a variety of dedicated or specific functions. Pin GPIO[11] is
default as input. Pin GPIO[11] as input is programmable to generate SMI/SMB interrupts. They are also
programmable to function as GPI[11] input, GPO[11] output. Refer to GPIO Config.1&2 Registers for more
details and GPIO Config. Tables (section 8) for input/output selections.
22 I/O
TTL
4mA
General Purpose I/O /
Secondary SMBus Select 0
Fully programmable GPIO that can be used for a variety of dedicated or specific functions. By default,
GPIO[12] becomes SMB_SEL[0] input to be used to select Secondary SMBus. Pin GPIO[12] default as
input. Pin GPIO[12] as input is programmable to generate SMI/SMB interrupts. It is also programmable to
function as GPI[12] input, GPO[12] output. Refer to GPIO Config.1&2 Registers for more details and GPIO
Config. Tables (section 8) for input/output selections.
SMB_SEL[1:0]
00
01
10
11
Selected Secondary SMBus
None
Secondary SMBus-1
Secondary SMBus-2
Secondary SMBus-3
GPIO[13]/
SMB_SEL[1]
GPIO[14]/
S_SMBDATA3
GPIO[15]/
S_SMBCLK3
XOUT
XIN/32KHZ
GND
VCC
23 I/O
TTL
4mA
General Purpose I/O /
Secondary SMBus Select 1
Fully programmable GPIO that can be used for a variety of dedicated or specific functions. On default,
GPIO[13] becomes SMB_SEL[1] input to be used to select Secondary SMBus. Pin GPIO[13] default as
input. Pin GPIO[13], as input is programmable to generate SMI/SMB interrupts. It is also programmable to
function as GPI[13] input, GPO[13] output. Refer to GPIO Config.1&2 Registers for more details and GPIO
Config. Tables (section 8) for input/output selections.
24 I/O
TTL
4mA
General Purpose I/O /
Secondary SMBus-3 Data I/O
Fully programmable GPIO that can be used for a variety of dedicated or specific functions. Pin GPIO[14]
default as input. Pin GPIO[14], as input is programmable to generate SMI/SMB interrupts. It is also
programmable to function as GPI[14] input, GPO[14] outputs or secondary SMBus-3 Data Input/Output.
Refer to GPIO Config.1&2 Registers for more details and GPIO Config. Tables (section 8) for input/output
selections.
25 I/O
TTL
4mA
General Purpose I/O /
Secondary SMBus-3 Clock I/O
Fully programmable GPIO that can be used for a variety of dedicated or specific functions. Pin GPIO[15]
default as input. Pin GPIO[15], as input is programmable to generate SMI/SMB interrupts. It is also
programmable to function as GPI[15] input, GPO[15] output or secondary SMBus-3 Clock Input/Output.
Refer to GPIO Config.1&2 Registers for more details and GPIO Config. Tables (section 8) for input/output
selections.
26 O
-
-
XOUT Output
Crystal output pin. See application diagram on p.18.
27 I
TTL
-
XIN Input/32KHZ
32KHZ input clock source. Crystal input pin as alternate. See application diagram on p.18.
14 GND
-
-
Ground
Ground.
28 PWR
-
-
3.3V/5V Power Supply
3.3V or 5V Power Supply.
OZ998-SF-2.2
Page 4

4페이지










OZ998 전자부품, 판매, 대치품
OZ998
13. OZ998 PACKAGE INFORMATION
DIM
INCHES
MILLIMETERS
MIN MAX MIN MAX
SSOP
A 0.084
2.13
A1 0.002 0.010 0.05 0.25
EH
PACKAGE
(209 mil)
B 0.009 0.015 0.22 0.38
C 0.004 0.008 0.09 0.20
D 0.390 0.413 9.90 10.50
E 0.197 0.220 5.00 5.60
e 0.0256
0.65
H 0.291 0.323 7.40 8.20
L 0.025 0.041 0.63 1.03
e
α 0° 8° 0°
8°
D
A
C
B A1
D
L
OZ998-SF-2.2
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