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SpeedFan 4.52
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Maxim MAX6648 (sensor)
Added by ALMICO on 13 may 2004
The MAX6648/MAX6692 are precise, two-channel digital temperature sensors. They accurately measure the temperature of their own die and a remote PN junction, and report the temperature in digital form using a 2-wire serial interface. The remote PN junction is typically the emitter-base junction of a common-collector PNP on a CPU, FPGA, or ASIC. The 2-wire serial interface accepts standard System Management Bus (SMBus) write byte, read byte, send byte, and receive byte commands to read the temperature data and to program the alarm thresholds. To enhance system reliability, the MAX6648/MAX6692 include an SMBus timeout. A fault queue prevents the ALERT and OVERT outputs from setting until a fault has been detected one, two, or three consecutive times (programmable). The MAX6648/MAX6692 provide two system alarms: ALERT and OVERT. ALERT asserts when any of four temperature conditions are violated: local overtemperature, remote overtemperature, local undertemperature, or remote undertemperature. OVERT asserts when the temperature rises above the value in either of the two OVERT limit registers. The OVERT output can be used to activate a cooling fan, or to trigger a system shutdown. Measurements can be done autonomously, with the conversion rate programmed by the user, or in a singleshot mode. The adjustable conversion rate allows the user to optimize supply current and temperature update rate to match system needs. Remote accuracy is +-0.8C maximum error between +25C and +125C with no calibration needed. The MAX6648/MAX6692 operate from -55C to +125C, and measure temperatures between 0C and +125C. The MAX6648 is available in an 8-pin uMAX package, and the MAX6692 is available in 8-pin uMAX and SO packages.

Feature Vote Votes Your vote Your comment
Power 3 7
Reliability 7 2
Ease of use 5 2
Features 6 2

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These are the latest votes and comments for this object:

Feature Date Vote Voted by Comment
Features 11 apr 2007 4 IGINO
Ease of use 11 apr 2007 4 IGINO
Reliability 11 apr 2007 4 IGINO
Power 11 apr 2007 4 IGINO
Features 24 jul 2005 7 KEVINTI
Ease of use 24 jul 2005 5 KEVINTI
Reliability 24 jul 2005 10 KEVINTI Which'ss correct? Nvidia read temp.or SpeedFan read temp.?
Power 24 jul 2005 5 KEVINTI
03 feb 2005 1 ADAMB Not detected on Chaintech AA5700U
03 jan 2005 3 FAHIM Speedfan reads 10C lower than what NVIDIA and rivatuner reads...
05 dec 2004 5 LOWEYES Like the Alien says,speedfan reads exactly 10C below NVpanel and rivatuner
06 aug 2004 1 ALIEN8472 Speedfan reports same ambient temp as Nvidia, but different Core
06 aug 2004 1 ALIEN8472 Nvidia panel reads 10C more (60C when Speedfan reads 50C)


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