MCP9843T-BE/ST The Microchip Technology MCP9843T-BE/ST is a digital temperature sensor with an I2C/SMBus interface. It operates from 2.7V to 5.5V and measures temperatures from -40°C to 125°C.
Mfr Part #:

MCP9843T-BE/ST

Available from 1 distributors
Mfr Name: Microchip Technology
Microchip Technology
The Microchip Technology MCP9843T-BE/ST is a digital temperature sensor with an I2C/SMBus interface. It operates from 2.7V to 5.5V and measures temperatures from -40°C to 125°C.
Total Stock: 30,810 pcs
$ Price Range: $2.06

MCP9843T-BE/ST Available from 1 distributor

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MCP9843T-BE/ST Specifications Quick View

Most important parameters for selection – full specs in datasheet.
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Manufacturer Name
Accuracy
Function
Interface
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Operating Voltage
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Output Fan
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MCP9843T-BE/ST Description

Short technical summary and product information.

The Microchip Technology MCP9843T-BE/ST is a digital temperature sensor designed for accurate temperature monitoring. It features a 2-wire I2C/SMBus interface, allowing communication with microcontrollers and other devices on a shared bus.

 

This sensor operates within a voltage range of 2.7V to 5.5V and can measure temperatures from -40°C to 125°C. It meets JEDEC specifications for temperature sensors in memory modules, making it suitable for applications like DIMM modules in servers, PCs, and laptops.

 

The MCP9843T-BE/ST is available in an 8-TSSOP package, designed for surface mounting. It offers features such as user-programmable registers for setting temperature event boundaries and an alert output signal.

 

For the MCP98243 variant, an integrated 2 Kbit Serial EEPROM is included for storing memory module and vendor information, specifically designed for DRAM DIMMs Serial Presence Detect (SPD).

MCP9843T-BE/ST Quick Information

Product Type: Digital Temperature Sensor
Canonical Name: MCP9843T-BE/ST Digital Temperature Sensor
Subcategory: Digital

MCP9843T-BE/ST Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

MCP9843T-BE/ST Estimated Pricing

Qty Low High
1+ $2.06 $2.06

Estimated market price range - modelled values for guidance only, not live distributor offers.

MCP9843T-BE/ST Features

  • Digital temperature sensor with I2C/SMBus interface.
  • Wide operating temperature range of -40°C to 125°C.
  • Operates from a 2.7V to 5.5V supply voltage.
  • Available in an 8-TSSOP surface mount package.
  • Meets JEDEC specifications for memory modules.

MCP9843T-BE/ST Applications

  • Used in DIMM modules for servers.
  • Suitable for PC and laptop temperature sensing.
  • General purpose temperature data logging.
  • Memory module thermal monitoring.

MCP9843T-BE/ST FAQs

7 frequently asked questions generated from this part’s specifications.
What is the operating voltage range of the MCP9843T-BE/ST?

The sensor operates over a supply voltage range of 2.7V to 5.5V, with a specified VDD range of 3.0V to 3.6V.

What is the operating temperature range of this sensor?

The device operates over a temperature range of -40°C to 125°C.

What package is the MCP9843T-BE/ST available in?

The sensor is available in an 8-TSSOP package with surface mount mounting.

What is the accuracy of the temperature sensor?

Grade B accuracy: ±0.2°C typical (max ±1°C) from +75°C to +95°C; ±0.5°C typical (max ±2°C) from +40°C to +125°C; ±1°C typical (max ±3°C) from -20°C to +125°C.

Does the sensor have a digital interface?

Yes, it uses a 2-wire I2C/SMBus interface.

Does it include EEPROM for SPD?

Yes, it integrates a 2Kbit serial EEPROM organized as 256 x 8-bit with permanent and reversible software write protection.

What JEDEC specifications does it meet?

It meets JEDEC JC42.4 TSE3000B3 and TSE2002B3 temperature sensor specifications.

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