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器件描述：Local/Remote Thermal Supervisor Advance Information
器件厂商：MICREL [Micrel Semiconductor]
厂商主页：http://www.micrel.com/
文件大小：140.34KB
文件页数：21
PDF阅读：MIC184BM.pdf (点击阅读器件资料)
摘要：
November 2000 1 MIC184
MIC184 Micrel
MIC184
Local/Remote Thermal Supervisor
Advance Information
General Description
The MIC184 is a versatile digital thermal supervisor capable
of measuring temperature using either its own internal sensor
or an inexpensive external sensor. A 2-wire serial interface is
provided to allow communication with either I
2
C or SMBus
masters. This device is a pin-for-pin and software compatible
upgrade for the industry standard LM75.
Additional features include remote temperature measure-
ment capability, and interrupt status and mask bits in the
chip’s configuration register for software polling. The open-
drain interrupt output pin can be used as either an overtem-
perature alarm or thermostatic control signal. Three program-
mable address pins permit users to multidrop up to 8 devices
along the 2-wire bus, allowing simple distributed temperature
sensing networks. Superior performance, low power and
small size makes the MIC184 an excellent choice for the most
demanding thermal management applications.
Typical Application
DATA
1
2
3
8
4
5
6
7
FROM
SERIAL BUS
HOST
OPTIONAL
REMOTE
TEMPERATURE
SENSOR
2200pF
MIC184
CLK
INT
Data
3.0V to 3.6V
V
DD
Clock
Interrupt
VDD
3 ×
10k
A2/T1
A1
A0
GND
0.1?F
ceramic
2-Channel SMBus Temperature Measurement System
Features
? Measures local and remote temperatures
? Pin and software backward compatible to LM75
? 9-bit sigma-delta ADC
? 2-wire I
2
C/SMBus compatible interface
? Programmable thermostatic settings for either internal or
external zone
? Open-drain comparator/interrupt output pin
? Interrupt mask and status bits
? Low-power shutdown mode
? Fail-safe response to diode faults
? 2.7V to 5.5V power supply range
? Up to 8 devices may share the same bus
? 8-Lead SOP and MSOP Packages
Applications
? Desktop, Server and Notebook Computers
? Printers and Copiers
? Test and measurement equipment
? Consumer electronics
Ordering Information
Part Number Temperature Range Package
MIC184BM –55°C to +125°C 8-lead SOP
MIC184BMM –55°C to +125°C 8-lead MSOP
Micrel, Inc. ? 1849 Fortune Drive ? San Jose, CA 95131 ? USA ? tel + 1 (408) 944-0800 ? fax + 1 (408) 944-0970 ? http://www.micrel.com
相关器件：MIC184 MIC184BMM
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