STLM75

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High-precision digital temperature sensor and thermal watchdog

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  • The STLM75 is a high-precision digital CMOS temperature sensor IC with a sigma-delta temperature-to-digital converter and an I2C-compatible serial digital interface. It is targeted for general applications such as personal computers, system thermal management, electronics equipment, and industrial controllers, and is packaged in the industry standard 8-lead TSSOP and SO8 packages.

    The device contains a band gap temperature sensor and 9-bit ADC which monitor and digitize the temperature to a resolution up to 0.5 °C. The STLM75 is typically accurate to (±3 °C - max) over the full temperature measurement range of –55 °C to 125 °C with ±2 °C accuracy in the –25 °C to +100 °C range. The STLM75 is pin-for-pin and software compatible with the LM75B.
    The STLM75 is specified for operating at supply voltages from 2.7 V to 5.5 V. Operating at 3.3 V, the supply current is typically (125 μA).
    The on-board sigma-delta analog-to-digital converter (ADC) converts the measured temperature to a digital value that is calibrated in degrees centigrade; for Fahrenheit applications a lookup table or conversion routine is required.
    The STLM75 is factory-calibrated and requires no external components to measure temperature.

    Key Features

    • Measures temperatures from –55°C to +125°C (–67°F to +257°F)
      • ±0.5°C (typ) accuracy
      • ±2°C (max) accuracy from –25°C to +100°C
    • Low operating current: 125 μA (typ)
    • No external components required
    • 2-wire I2C/SMBus-compatible serial interface
      • Supports bus time-out feature
      • Selectable bus address allows connection of up to eight devices on the bus
    • Wide power supply range-operating voltage range: 2.7 V to 5.5 V
    • Conversion time is 150 ms (max)
    • Programmable temperature threshold and hysteresis set points
    • Pin- and software-compatible with LM75 (drop-in replacement)
    • Power-up defaults permit standalone operation as a thermostat
    • Shutdown mode to minimize power consumption
    • Output pin (open drain) can be configured for interrupt or comparator/thermostat mode (dual purpose event pin)
    • Packages:
      • SO8
      • MSOP8 (TSSOP8)

Circuit Diagram

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CAD/EDA Symbols, Footprints and Models

Quality and Reliability

Part Number Marketing Status Package RoHS Compliance Grade Material Declaration**
STLM75DS2F
Active
MSOP/TSSOP 8 Ecopack2
STLM75M2F
Active
SO-8 Ecopack1

STLM75DS2F

Package:

MSOP/TSSOP 8

Material Declaration**:

PDF XML

Marketing Status

Active

Package

MSOP/TSSOP 8

RoHS Compliance Grade

Ecopack2

STLM75M2F

Package:

SO-8

Material Declaration**:

PDF XML

Marketing Status

Active

Package

SO-8

RoHS Compliance Grade

Ecopack1

(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.

Sample & Buy

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min
max
STLM75DS2F Available at 7 distributors

Distributor availability ofSTLM75DS2F

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Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 3000 1 Order Now
COMPEL EUROPE 1845 1 Order Now
AVNET AMERICA 12135 0 Order Now
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Newark Element14 AMERICA 361 0 Order Now
MOUSER WORLDWIDE 8997 1 Order Now
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Distributor reported inventory date: 2020-10-21

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1

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1845

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12135

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19000

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0

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Newark Element14

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361

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8997

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287

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Distributor reported inventory date: 2020-10-21

Buy Direct
Active
EAR99 NEC Tape And Reel MSOP/TSSOP 8 -55 125 MALAYSIA 0.284 / 1k
STLM75M2F Available at 7 distributors

Distributor availability ofSTLM75M2F

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 2669 1 Order Now
COMPEL EUROPE 3977 1 Order Now
RS COMPONENTS EUROPE 1800 1 Order Now
Newark Element14 AMERICA 345 0 Order Now
P&S ASIA/PACIFIC 913 1 Order Now
MOUSER WORLDWIDE 4340 1 Order Now
Farnell Element14 EUROPE 3602 1 Order Now

Distributor reported inventory date: 2020-10-21

Distributor Name

DIGIKEY

Stock

2669

Min.Order

1

Region

WORLDWIDE Order Now

COMPEL

Stock

3977

Min.Order

1

Region

EUROPE Order Now

RS COMPONENTS

Stock

1800

Min.Order

1

Region

EUROPE Order Now

Newark Element14

Stock

345

Min.Order

0

Region

AMERICA Order Now

P&S

Stock

913

Min.Order

1

Region

ASIA/PACIFIC Order Now

MOUSER

Stock

4340

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

3602

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-10-21

Buy Direct
Active
EAR99 NEC Tape And Reel SO-8 -55 125 MOROCCO 0.284 / 1k

STLM75DS2F

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.284 / 1k

Distributor availability ofSTLM75DS2F

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 3000 1 Order Now
COMPEL EUROPE 1845 1 Order Now
AVNET AMERICA 12135 0 Order Now
ARROW EUROPE 19000 0 Order Now
Newark Element14 AMERICA 361 0 Order Now
MOUSER WORLDWIDE 8997 1 Order Now
Farnell Element14 EUROPE 287 1 Order Now

Distributor reported inventory date: 2020-10-21

Distributor Name

DIGIKEY

Stock

3000

Min.Order

1

Region

WORLDWIDE Order Now

COMPEL

Stock

1845

Min.Order

1

Region

EUROPE Order Now

AVNET

Stock

12135

Min.Order

0

Region

AMERICA Order Now

ARROW

Stock

19000

Min.Order

0

Region

EUROPE Order Now

Newark Element14

Stock

361

Min.Order

0

Region

AMERICA Order Now

MOUSER

Stock

8997

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

287

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-10-21

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

MSOP/TSSOP 8

Operating Temperature (°C)

(min)

-55

(max)

125

Budgetary Price (US$)* / Qty

0.284 / 1k

Country of Origin

MALAYSIA

STLM75M2F

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.284 / 1k

Distributor availability ofSTLM75M2F

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 2669 1 Order Now
COMPEL EUROPE 3977 1 Order Now
RS COMPONENTS EUROPE 1800 1 Order Now
Newark Element14 AMERICA 345 0 Order Now
P&S ASIA/PACIFIC 913 1 Order Now
MOUSER WORLDWIDE 4340 1 Order Now
Farnell Element14 EUROPE 3602 1 Order Now

Distributor reported inventory date: 2020-10-21

Distributor Name

DIGIKEY

Stock

2669

Min.Order

1

Region

WORLDWIDE Order Now

COMPEL

Stock

3977

Min.Order

1

Region

EUROPE Order Now

RS COMPONENTS

Stock

1800

Min.Order

1

Region

EUROPE Order Now

Newark Element14

Stock

345

Min.Order

0

Region

AMERICA Order Now

P&S

Stock

913

Min.Order

1

Region

ASIA/PACIFIC Order Now

MOUSER

Stock

4340

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

3602

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-10-21

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

SO-8

Operating Temperature (°C)

(min)

-55

(max)

125

Budgetary Price (US$)* / Qty

0.284 / 1k

Country of Origin

MOROCCO

(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office  or our Distributors