1 Features
1• 10-Bit ADC With Seven Analog Inputs
• Fan-Speed Monitoring Inputs
• Input Range/Resolution:
– Default: 2.56 V/2.5 mV
– Programmable: V DD/6 mV
• Chassis Intrusion Detection Input
• Interrupt Alarms:
– Upper Over-Limit
– Lower Under-Limit
• Interrupt Status Register Input for External
Temperature Sensors
• Shutdown Mode
• Programmable RST_OUT/OS
• Pin Compatible with LM96080 and LM80
• Package: 24-Pin TSSOP

2 Applications
• Communications Equipment
• Servers
• Industrial and Medical Equipment
• Storage Area Networks
• Set-Top Boxes
• Test and Measurement Equipment

3 Description
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.
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.
The AMC80 is available in a 24-lead TSSOP package
and is fully specified over the –40°C to +125°C
temperature range.