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ADM9240

ON Semiconductor
Part Number ADM9240
Manufacturer ON Semiconductor
Description Low Cost Microprocessor System Hardware Monitor
Published Oct 19, 2022
Detailed Description a Low Cost Microprocessor System Hardware Monitor ADM9240 FEATURES Six Direct Voltage Measurement Inputs (IncludingTw...
Datasheet PDF File ADM9240 PDF File

ADM9240
ADM9240


Overview
a Low Cost Microprocessor System Hardware Monitor ADM9240 FEATURES Six Direct Voltage Measurement Inputs (IncludingTwo Processor Core Voltages) with On-Chip Attenuators On-Chip Temperature Sensor Five Digital Inputs for VID Bits 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 Interrupt Output Programmable RESET I/O Pin Shutdown Mode to Minimize Power Consumption Limit Comparison of all Monitored Values APPLICATIONS Network Servers and Personal Computers Microprocessor-Based Office Equipment Test Equipment and Measuring Instruments PRODUCT DESCRIPTION The ADM9240 is a complete system hardware monitor for microprocessor-based systems, providing measurement and limit comparison of up to four power supplies and two processor core voltages, plus temperature, two fan speeds and chassis intrusion.
Measured values can be read out via an I2C-compatible 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 ADM9240’s 2.
85 V to 5.
75 V supply voltage range, low supply current and I2C compatible 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.
FUNCTIONAL BLOCK DIAGRAM VCC VID0 VID1 VID2 VID3 VID4 FAN1 FAN2 +VCCP1 +2.
5VIN +3.
3VIN +5VIN +12VIN +VCCP2 BANDGAP TEMPERATURE SENSOR VID0 - 3 AND FAN DIVISOR REGISTERS SERIAL BUS ADDRESS REGISTER VID4 AND DEVICE ID REGISTER FAN SPEED COUNTER INPUT ATTENUATORS AND ANALOG MULTIPLEXER ADDRESS POINTER REGISTER TEMPERATURE CONFIGURATION REGISTER 9-BIT ADC ADM9240 SERIAL BUS INTERFACE VALUE AND LIMIT REGISTERS LIMIT COMPARATORS ...


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