You are logged in as anonymous
Register
Username 
Password 
  Home History Support Articles Screenshots Download F.A.Q. Beta Area Advertise here  
SpeedFan 4.52
Copyright 2000-2017 by Alfredo Milani Comparetti
Donate something for SpeedFan :-)
Maxim MAX6654 (sensor)
Added by ALMICO on 11 may 2002
Description: 
The MAX6654 is a precise digital thermometer that reports the temperature of both a remote P-N junction and its own die. The remote junction can be a diode-connected transistor - typically a low-cost, easily mounted 2N3904 NPN type or 2N3906 PNP type - that replaces conventional thermistors or thermocouples. Remote accuracy is +-1C for multiple transistor manufacturers, with no calibration needed. The remote junction can also be a common-collector PNP, such as a substrate PNP of a microprocessor. The 2-wire serial interface accepts standard System Management Bus (SMBus), Write Byte, Read Byte, Send Byte, and Receive Byte commands to program the alarm thresholds and to read temperature data. Measurements can be done automatically and autonomously, with the conversion rate programmed by the user, or programmed to operate in a single-shot mode. The adjustable conversion rate allows the user to optimize supply current and temperature update rate to match system needs. When the conversion rate is faster than 1Hz, the conversion results are available as a 7-bitplus-sign byte with a 1C LSB. When the conversion rate is 1Hz or slower, the MAX6654 enters the extended mode. In this mode, 3 additional bits of temperature data are available in the extended resolution register, providing 10-bit-plus-sign resolution with a 0.125C LSB. Single-shot conversions also have 0.125C per LSB resolution when the conversion rate is 1Hz or slower. A parasitic resistance cancellation (PRC) mode can also be invoked for conversion rates of 1Hz or slower by setting bit 4 of the configuration register to 1. In PRC mode, the effect of series resistance on the leads of the external diode is canceled. The 11-bit conversion in PRC mode is performed in <500ms and is disabled for conversion rates faster than 1Hz. The one-shot conversion is also 11 bits in <500ms. The MAX6654 default low-temperature measurement limit is 0C. This can be extended to -64C. The MAX6654 is available in a small, 16-pin QSOP surface-mount package.

Feature Vote Votes Your vote Your comment
Power -- --
Reliability -- --
Ease of use -- --
Features -- --

Note: higher votes are better.
You can post votes and comments if you register :-)

Show an expanded listing of votes and comments for this object.

These are the latest votes and comments for this object:

Feature Date Vote Voted by Comment

Links

Google      Web www.almico.com
Page generated in 0.2171 seconds Powered by (new)... Page viewed 14984050 times
United States Did you know that SpeedFan has an RSS feed feed? Privacy policy