AMC80
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SBOS559 –MAY 2011
System Hardware Monitor with Two-Wire/SMBus Serial Interface
Check for Samples: AMC80
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FEATURES
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10-bit ADC with Seven Analog Inputs
Fan-Speed Monitoring Inputs
Input Range/Resolution:
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Storage Area Networks
Set-Top Boxes
Test and Measurement Equipment
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Default: 2.56 V/2.5 mV
DESCRIPTION
Programmable: VDD/6 mV
The AMC80 is a system hardware monitoring and
control circuit that includes a seven-channel, 10-bit
analog-to-digital converter (ADC), two programmable
fan-speed monitors, and a two-wire interface. The
AMC80 also includes programmable upper over-limit
and lower under-limit alarms that activate when the
programmed limits are exceeded.
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Chassis Intrusion Detection Input
Interrupt Alarms:
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Upper Over-Limit
Lower Under-Limit
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Interrupt Status Register Input for External
Temperature Sensors
The AMC80 can interface with both linear and digital
temperature sensors. The 2.5-mV least significant bit
(LSB) and 2.56-V input range can accept inputs from
a linear sensor such as the TMP20. The BTI pin is
used as an input from a digital sensor such as the
TMP75. The AMC80 operates from a 3-V to 5.5-V
supply voltage, has low supply current, and can be
configured using a two-wire interface, thus making it
ideal for a wide range of applications.
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Shutdown Mode
Programmable RST_OUT/OS
Pin Compatible with LM96080 and LM80
Package: 24-Pin TSSOP
APPLICATIONS
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Communications Equipment
Servers
The AMC80 is available in a 24-lead TSSOP package
and is fully specified over the –40°C to +125°C
temperature range.
Industrial and Medical Equipment
AMC80
Positive
Voltage
CH0
CH1
CH2
CH3
CH4
CH5
CH6
Analog
Inputs
10-Bit
Delta-Sigma
ADC
Limit
Registers
and
Negative
Voltage
Interrupt
Masking
and
Interrupt
Control
INT
Alarm
Comparators
Interrupt
Outputs
Temperature
Sensor
V+
RST_OUT/OS
FAN1
FAN2
Fan Speed
Counter
TMP75
Temperature
Sensor
BTI
GPI(CI)
INT_IN
Chassis
Intrusion
Detector
SDA
SCL
GPO
Digital
Inputs
and
Serial
Bus
Interface
A0/NTEST_OUT
Interface and Control
NTEST_IN/RESET_IN
A1
A2
Outputs
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Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
2
All trademarks are the property of their respective owners.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2011, Texas Instruments Incorporated