Low Cost Microprocessor
System Hardware Monitor
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ADM9240
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Six Direct Voltage Measurement Inputs (IncludingTwo
Processor Core Voltages) with On-Chip Attenuators
On-Chip Temperature Sensor
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Fully Supports Intel’s LANDesk Client Manager (LDCM)
Register-Compatible with LM7x Products
Two Fan Speed Monitoring Inputs
I2C® Compatible System Management Bus (SMBus)
Chassis Intrusion Detect
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Shutdown Mode to Minimize Power Consumption
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Network Servers and Personal Computers
Microprocessor-Based Office Equipment
Test Equipment and Measuring Instruments
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FUNCTIONAL BLOCKK DIAGRAAMM
CC
VID0
NTEST_OUT/A0
A1
ADDRESS
VID1
VID2
VID3
FAN DIVISOR
SERIAL BUS
INTERFACE
SDA
SCL
VID4 AND
REGISTER
VALUE AND LIMIT
REGISTERS
VID4
LIMIT
FAN1
FAN2
COUNTER
COMPARATORS
CI
INTERRUPT
STATUS
REGISTERS
ADDRESS
POINTER
REGISTER
+V
CCP1
INT MASK
+2.5V
IN
TEMPERATURE
CONFIGURATION
REGISTER
REGISTERS
+3.3V
+5V
INT
IN
INPUT
ATTENUATORS
AND
CONFIGURATION
REGISTER
IN
ANALOG
9-BIT ADC
MULTIPLEXER
+12V
IN
ANALOG
OUTPUT REGISTER
AND 8-BIT DAC
NTEST_IN/AOUT
+V
CCP2
RESET
BANDGAP
TEMPERATURE
SENSOR
CHASSIS
INTRUSION
CLEAR REGISTER
ADM9240
GNDA
GNDD
I2C is a registered trademark of Philips Corporation.
©2010 SCILLC. All rights reserved.
May 2010 - Rev. 2
Publication Order Number:
ADM9240/D