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參數(shù)資料
| 型號： | ADM9240ARU |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | 電源管理 |
| 英文描述： | Low Cost Microprocessor System Hardware Monitor |
| 中文描述： | 9-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO24 |
| 封裝： | TSSOP-24 |
| 文件頁數(shù)： | 1/22頁 |
| 文件大?。?/td> | 280K |
| 代理商： | ADM9240ARU |
REV. 0
Information furnished by Analog Devices is believed to be accurate and
reliable. However, no responsibility is assumed by Analog Devices for its
use, nor for any infringements of patents or other rights of third parties
which may result from its use. No license is granted by implication or
otherwise under any patent or patent rights of Analog Devices.
a
ADM9240
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700
World Wide Web Site: http://www.analog.com
Fax: 781/326-8703
Analog Devices, Inc., 1998
LowCost Mcroprocessor
SystemHardware Monitor
FUNCT IONAL BLOCK DIAGRAM
BANDGAP
TEMPERATURE
SENSOR
FAN1
SCL
SDA
A1
NTEST_OUT/A0
FAN2
CI
INT
NTEST_IN/AOUT
RESET
VID0
VID1
VID2
VID3
VID4
+V
CCP1
+2.5V
IN
+3.3V
IN
+5V
IN
+12V
IN
+V
CCP2
VID0 - 3 AND
FAN DIVISOR
REGISTERS
VID4 AND
DEVICE ID
REGISTER
INPUT
ATTENUATORS
AND
ANALOG
MULTIPLEXER
FAN SPEED
COUNTER
ADDRESS
POINTER
REGISTER
TEMPERATURE
CONFIGURATION
REGISTER
9-BIT ADC
SERIAL BUS
ADDRESS
REGISTER
ADM9240
LIMIT
COMPARATORS
INTERRUPT
STATUS
REGISTERS
INT
MASK
REGISTERS
CHASSIS
INTRUSION
CLEAR REGISTER
SERIAL BUS
INTERFACE
ANALOG
OUTPUT REGISTER
AND 8-BIT DAC
VALUE AND LIMIT
REGISTERS
V
CC
CONFIGURATION
REGISTER
GNDA
GNDD
FEATURES
Six Direct Voltage Measurement Inputs (Including Two
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
I
2
C
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 DE SCRIPT ION
T he ADM9240 is a complete system hardware monitor for
microprocessor-based systems, providing measurement and
limit comparison of up to four power supplies and two proces-
sor core voltages, plus temperature, two fan speeds and chassis
intrusion. Measured values can be read out via an I
2
C-compat-
ible serial System Management Bus, and values for limit com-
parisons can be programmed in over the same serial bus. T he
high speed successive approximation ADC allows frequent
sampling of all analog channels to ensure a fast interrupt
response to any out-of-limit measurement.
T he ADM9240’s 2.85 V to 5.75 V supply voltage range, low
supply current and I
2
C compatible interface, make it ideal for a
wide range of applications. T hese include hardware monitoring
and protection applications in personal computers, electronic
test equipment and office electronics.
I
2
C is a registered trademark of Philips Corporation.
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