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The STTS751 is a digital temperature sensor which communicates over a 2-wire SMBus 2.0 compatible bus. The temperature is measured with a user-configurable resolution between 9 and 12 bits. At 9 bits, the smallest step size is 0.5 °C, and at 12 bits, it is 0.0625 °C. At the default resolution (10 bits, 0.25 °C/LSB), the conversion time is nominally 21 milliseconds.
The open-drain EVENT output is used to indicate an alarm condition in which the measured temperature has exceeded the user-programmed high limit or fallen below the low limit. When the EVENT pin is asserted, the host can respond using the SMBus Alert Response Address (ARA) protocol to which the STTS751 will respond by sending its slave address.
The STTS751 is a 6-pin device that supports user-configurable slave addresses. Via the pull-up resistor on the Addr/Therm pin, one of four different slave addresses can be specified. Two order numbers (STTS751-0 and STTS751-1) provide two different sets of slave addresses bringing the total available to eight. Thus, up to eight devices can share the same 2-wire SMBus without ambiguity, thereby allowing monitoring of multiple temperature zones in an application.
The two-wire interface can support transfer rates up to 400 kHz. Two small footprint packages are available: a UDFN-6L and a standard SOT23-6L package.Key Features
- Operating voltage 2.25 V to 3.6 V
- Operating temperature –40 °C to +125 °C
- Programmable
- 10 different conversion rates 0.0625 to 32 conversions/sec. 1 conversion/sec. - default
- 4 different resolutions 9-bit (0.5 °C/LSB) to12-bit (0.0625 °C/LSB) 10-bit (0.25 °C/LSB) - default
- Low supply current
- 50 μA (typ) for 8 conversions/sec.
- 20 μA (typ) for 1 conversion/sec.
- 3 μA (typ) standby
- Accuracy
- ±0.5 °C (typ) 0 °C to +85 °C
- ±0.5 °C (typ) –40 °C to +125 °C
- One-shot mode for power saving
- Fast conversion time 21 ms (typ) 10-bit
- Pull-up resistor value allows single pin to select one of four slave addresses
- Supports 400 kHz serial clock
- SMBus 2.0 compatible
- SMBus ALERT (ARA) support
- SMBus timeout
- RoHS/green
Sample & Buy
| Part Number | Package | Packing Type | Temperature (°C) | Marketing Status | Budgetary Price (US$)* | Quantity | ECCN (US) | Country of Origin | More info | Order from Distributors | Order from ST | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| min | max | |||||||||||
| STTS751-0DP3F | DFN6 2X2X0.5 | Tape And Reel | -40 | 125 |
Active
|
- | EAR99 | THAILAND | Check Availability | Buy direct | ||
| STTS751-1DP3F | DFN6 2X2X0.5 | Tape And Reel | -40 | 125 |
Active
|
- | EAR99 | THAILAND | Check Availability | Buy direct | ||
(*) 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
Ecosystems
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Picture Part number Manufacturer Description AWS IoT Core AWS AWS IoT Core is a managed cloud platform that lets connected devices easily and securely interact with cloud applications and other devices. AZURE Cloud Microsoft Microsoft Azure is an ever-expanding set of cloud services to help your organization meet your business challenges. It's the freedom to build, manage, and deploy applications on a massive, global network using your favorite tools and frameworks. Watson IoT Platform IBM IBM Watson IoT Platform is a managed, cloud-hosted service designed to make it simple to derive value from your Internet of Things devices. Part NumberAWS IoT Core is a managed cloud platform that lets connected devices easily and securely interact with cloud applications and other devices.
Microsoft Azure is an ever-expanding set of cloud services to help your organization meet your business challenges. It's the freedom to build, manage, and deploy applications on a massive, global network using your favorite tools and frameworks.
IBM Watson IoT Platform is a managed, cloud-hosted service designed to make it simple to derive value from your Internet of Things devices.
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Connecting low-power SUB 1GHZ RF transceiver to the Cloud with fully customisable sensors, ARM® 32-bit Cortex®-M4 CPU and coin battery.
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Picture Part number Manufacturer Description 
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Embedded Software
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Picture Part number Manufacturer Description C-Driver-MEMS ST Standard C platform-independent drivers for MEMS motion and environmental sensors Part NumberStandard C platform-independent drivers for MEMS motion and environmental sensors
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Evaluation Tools
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Picture Part number Manufacturer Description 
STEVAL-MKI198V1K ST Temperature probe kit based on STTS751 Part NumberTemperature probe kit based on STTS751
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Support and Applications
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Picture Part number Manufacturer Description SensiEDGE customization services SensiEDGE End-to-end development services: Hardware, Firmware, Software development, Enclosure, Cloud and mobile APPs. Speed up your IoT project with SensiEDGE! Part NumberEnd-to-end development services: Hardware, Firmware, Software development, Enclosure, Cloud and mobile APPs. Speed up your IoT project with SensiEDGE!
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| Part Number | Marketing Status | Package | RoHS Compliance Grade | Material Declaration** |
|---|---|---|---|---|
| STTS751-0DP3F |
Active
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DFN6 2X2X0.5 | Ecopack2 | |
| STTS751-1DP3F |
Active
|
DFN6 2X2X0.5 | Ecopack2 |
(**) 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.
