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ADM1024ARUZ Datasheet(PDF) 1 Page - ON Semiconductor

Part No. ADM1024ARUZ
Description  System Hardware Monitor with Remote Diode Thermal Sensing
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Maker  ONSEMI [ON Semiconductor]
Homepage  http://www.onsemi.com
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ADM1024ARUZ Datasheet(HTML) 1 Page - ON Semiconductor

 
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© Semiconductor Components Industries, LLC, 2010
June, 2010 − Rev. 2
1
Publication Order Number:
ADM1024/D
ADM1024
System Hardware Monitor
with Remote Diode Thermal
Sensing
The ADM1024 is a complete system hardware monitor for
microprocessor−based systems, providing measurement and limit
comparison of various system parameters. Eight measurement inputs
are provided; three are dedicated to monitoring 5.0 V and 12 V power
supplies and the processor core voltage. The ADM1024 can monitor a
fourth power supply voltage by measuring its own VCC. One input
(two pins) is dedicated to a remote temperature−sensing diode. Two
more pins can be configured as inputs to monitor a 2.5 V supply and a
second processor core voltage, or as a second temperature−sensing
input. The remaining two inputs can be programmed as general
purpose analog inputs or as digital fan speed measuring inputs.
Measured values can be read out via a serial System Management Bus
and values for limit comparisons can be programmed in over the same
serial bus. The high speed successive approximation ADC allows
frequent sampling of all analog channels to ensure a fast interrupt
response to any out−of−limit measurement.
The ADM1024’s 2.8 V to 5.5 V supply voltage range, low supply
current, and SMBus interface make it ideal for a wide range of
applications. These include hardware monitoring and protection
applications in personal computers, electronic test equipment, and office
electronics.
FEATURES
Up to Nine Measurement Channels
Inputs Programmable−to−Measure Analog Voltage,
Fan Speed or External Temperature
External Temperature Measurement with Remote Diode
(Two Channels)
On−Chip Temperature Sensor
Five Digital Inputs for VID Bits
LDCM Support
System Management Bus (SMBus)
Chassis Intrusion Detect
Interrupt and Overtemperature Outputs
Programmable RESET Input Pin
Shutdown Mode to Minimize Power Consumption
Limit Comparison of All Monitored Values
This is a Pb−Free Device
APPLICATIONS
Network Servers and Personal Computers
Microprocessor−Based Office Equipment
Test Equipment and Measuring Instruments
http://onsemi.com
See detailed ordering and shipping information in the package
dimensions section on page 28 of this data sheet.
ORDERING INFORMATION
xxx
= Specific Device Code
#= Pb−Free Package
YYWW = Date Code
MARKING DIAGRAM
TSSOP−24
CASE 948H
1024
ARUZ
#YYWW
1
PIN ASSIGNMENT
1
2
5
6
7
8
9
10
20
21
22
23
24
19
14
13
12
11
SDA
SCL
CI
FAN2/AIN2
FAN1/AIN1
NTEST_OUT/ADD
VID1/IRQ1
+2.5VIN/D2+
+VCCP1
VID4/IRQ4
GND
VCC
RESET
NTEST_IN/AOUT
INT
VCCP2/D2–
+5.0VIN
D1–
D1+
+12VIN
VID0/IRQ0
AD1024
(Top View)
THERM
VID3/IRQ3
VID2/IRQ2
18
17
16
15
3
4


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