MAX6575H, MAX6575L

SOT Temperature Sensor with Multidrop Single Wire Digital Interface

SOT23 Single-Wire Digital Temperature Sensors

Please check latest availability status for a specific part variant.


The MAX6575L/H is a low-cost, low-current temperature sensor with a single-wire digital interface. It features accuracy of ±3°C at +25°C, ±4.5°C at +85°C, and ±5°C at +125°C. The MAX6575L/H is a monostable, externally triggered temperature sensor that allows a microprocessor (µP) to interface with up to eight temperature sensors using a single control line. Temperatures are sensed by measuring the time delay between the falling edge of the external triggering pulse and the falling edge of the subsequent pulse delays reported from the devices. Different sensors on the same I/O line use different timeout multipliers to avoid overlapping signals.

The MAX6575L/H features eight different timeout multipliers; these are selectable by using the two time-select pins on each device and choosing the "L" or "H" version. The "L" version provides four delay ranges less than 50ms. The "H" version provides four delay ranges greater than 50ms. The MAX6575L/H is available in a space-saving 6-pin SOT23 package.
MAX6575H, MAX6575L: Typical Operating Circuit MAX6575H, MAX6575L: Typical Operating Circuit Enlarge+

Key Features

  • Simple Single-Wire Interface to µP or µC
  • Multidrop up to Eight Sensors on One Wire
  • ±0.8°C Accuracy at +25°C (±3°C max)
  • Operates from +2.7V to +5.5V Supply Voltage
  • Low 150µA (typ) Supply Current
  • Standard Operating Temperature Range -40°C to +125°C
  • Small 6-Pin SOT23 Package


  • Battery Packs
  • Cell Phones
  • Critical µP and µC Monitoring
  • Hard Drives/Tape Drives
  • Medical Equipment
  • Networking and Telecom Equipment
  • Portable Battery-Powered Equipment

See parametric specs for Temperature Sensors (113)

Part NumberSensor TypeInterfaceChannelsAccuracy
Parasite Pwr.Multi DroppableOper. Temp.
See Notes
MAX6575 LocalPulse DelayOne3NoYes-55 to +125
$0.90 @1k

Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.
Request Reliability Report for: MAX6575L  MAX6575H 
Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C   Material Composition  

Note : The failure rates are summarized by technology and mapped to the associated material part numbers. The failure rates are highly dependent on the number of units tested.

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