Products > Sensors, Transducers > SE97BTP

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DDR memory module temp sensor with integrated SPD

  • Package/Case :
  • 8-WSON
  • Product Categories :
  • Sensors ; I2C Digital Temperature Sensors
  • RoHs Status:
  • Lead free/RoHS Compliant
  • Marking Code:
  • 97B
  • In-stock:
  • 2500


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SE97BTP Product Details

Meets JEDEC Specification 42.4 TSE2002B1, 3 Jun 2009. The NXP® Semiconductors SE97B measures temperature from -40 °C to +125 °C with JEDEC Grade B ±1 °C maximum accuracy between +75 °C and +95 °C critical zone and also provide 256 bytes of EEPROM memory communicating via the I2C-bus/SMBus. It is typically mounted on a DDR3 Dual In-Line Memory Module (DIMM) measuring the DRAM temperature in accordance with the new JEDEC (JC-42.4) Mobile Platform Memory Module Temperature Sensor Component specification and also replacing the Serial Presence Detect (SPD) which is used to store memory module and vendor information.

The SE97B thermal sensor and EEPROM operates over the VDD range of 3.0 V to 3.6 V.

The TS consists of a Δ∑ Analog to Digital Converter (ADC) that monitors and updates its own temperature readings 10 times per second, converts the reading to a digital data, and latches them into the data temperature register. User-programmable registers, the specification of upper/lower alarm and critical temperature trip points, EVENT output control, and temperature shutdown, provide flexibility for DIMM temperature-sensing applications.

When the temperature changes beyond the specified boundary limits, the SE97B outputs an EVENT signal using an open-drain output that can be pulled up between 0.9 V and 3.6 V. The user has the option of setting the EVENT output signal polarity as either an active LOW or active HIGH comparator output for thermostat operation, or as a temperature event interrupt output for microprocessor-based systems. The EVENT output can also be configured as only a critical temperature output.

The EEPROM is designed specifically for DRAM DIMMs SPD. The lower 128 bytes (address 00h to 7Fh) can be Permanent Write Protected (PWP) or Reversible Write Protected (RWP) by software. This allows DRAM vendor and product information to be stored and write protected. The upper 128 bytes (address 80h to FFh) are not write protected and can be used for general purpose data storage.

The SE97B has a single die for both the temp sensor and EEPROM for higher reliability and supports the industry-standard 2-wire I2C-bus/SMBus serial interface. The SMBus TIMEOUT function is supported to prevent system lock-ups. Manufacturer and Device ID registers provide the ability to confirm the identity of the device. Three address pins allow up to eight devices to be controlled on a single bus.

The SE98B is available as the SE97B thermal sensor only.


  • JEDEC (JC-42.4) DIMM temperature sensor plus 256-byte serial EEPROM for Serial Presence Detect (SPD)
  • SDA open-drain output design for operation in distributed multi-point applications
  • Shutdown current: 0.1 µA (typ.) and 5.0 µA (max.)
  • Power-on reset: 1.8 V (typ.)
  • 2-wire interface: I2C-bus/SMBus compatible, 0 Hz to 400 kHz
  • SMBus Alert Response Address and TIMEOUT 25 ms to 35 ms (programmable)
  • ESD protection exceeds 2500 V HBM per JESD22-A114, 250 V MM per JESD22-A115, and 1000 V CDM per JESD22-C101
  • Latch-up testing is done to JEDEC Standard JESD78 which exceeds 100 mA
  • Available in HWSON8 package
2.2 Temperature sensor features

  • 11-bit ADC Temperature-to-Digital converter with 0.125 °C resolution
  • Voltage range: 3.0 V to 3.6 V
  • Operating current: 250 µA (typ.) and 400 µA (max.)
  • Programmable hysteresis threshold: off, 0 °C, 1.5 °C, 3 °C, 6 °C
  • Over/under/critical temperature EVENT output
  • B-grade accuracy:
    • ±0.5 °C/±1 °C (typ./max.) +75 °C to +95 °C
    • ±1.0 °C/±2 °C (typ./max.) +40 °C to +125 °C
    • ±2.0 °C/±3 °C (typ./max.) -40 °C to +125 °C
2.3 Serial EEPROM features

  • Read and write voltage range: 3.0 V to 3.6 V
  • Operating current:
    • Write → 0.6 mA (typ.) for 3.5 ms (typ.)
    • Read → 100 µA (typ.)
  • Organized as 1 block of 256 bytes (256 × 8)
  • 100,000 write/erase cycles and 10 years of data retention
  • Permanent and Reversible Software Write Protect
  • Software Write Protection for the lower 128 bytes
Target Applications
  • DDR2 and DDR3 memory modules
  • Laptops, personal computers and servers
  • Enterprise networking
  • Hard disk drives and other PC peripherals

SE97BTP Block Diagram
(Picture: Diagram)

Technical Parameters

  • Manufacturer
  • NXP
  • Packing
  • Tape & Reel (TR)/Cut Tape (CT)/Tray/Tube
  • RoHs Status
  • Lead free/RoHS Compliant
  • Package/Case
  • 8-WSON

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Estimated Delivery Time: Dec 13 - Dec 18 days (choose Expedited at checkout).

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  • charge US$30.00 banking fee.
  • charge 4.0% service fee.
  • charge 3.5% service fee.
  • charge US$0.00 banking fee.
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We provide high quality products, thoughtful service and after sale guarantee

  • We have rich products, can meet your various needs.

    We have rich products, can meet your various needs.

  • Minimum order quantity starts from 1pcs.

    Minimum order quantity starts from 1pcs.

  • Lowest international shipping fee starts from US$2.00.

    Lowest international shipping fee starts from US$2.00.

  • 90 days quality guarantee for all products.

    90 days quality guarantee for all products.


  • Step1:Product

    Step1: Products

  • Step2:Vacuum packaging

    Step2: Vacuum Packaging

  • Step3:Anti-static bag

    Step3: Anti-Static Bag

  • Step4:Individual packaging

    Step4: Individual Packaging

  • Step5:Packaging boxes

    Step5: Packaging Boxes

  • Step6:bar-code shipping tag

    Step6: Bar-Code Shipping Tag

All the products will packing in anti-staticbag. Ship with ESD antistatic protection.

Outside ESD packing’s lable will use ourcompany’s information: Part Mumber, Brand and Quantity.

We will inspect all the goods before shipment,ensure all the products at good condition and ensure the parts are new originalmatch datasheet.

After all the goods are ensure no problems afterpacking, we will packing safely and send by global express. It exhibitsexcellent puncture and tear resistance along with good seal integrity.

Jotrin ESD packing


1.We provide 90 days warranty.

2.If some of the items you received aren't of perfect quality, we would resiponsibly arrange your refund or replacement. But the items must remain their orginal condition.


Q: How does Jotrin guarantee that SE97BTP is the original manufacturer or agent of NXP?
We have a professional business development department to strictly test and verify the qualifications of NXP original manufacturers and agents. All NXP suppliers must pass the qualification review before they can publish their SE97BTP devices; we pay more attention to the channels and quality of SE97BTP products than any other customer. We strictly implement supplier audits, so you can purchase with confidence.
Q: How to find the detailed information of SE97BTP chips? Including NXP original factory information, Sensors ; I2C Digital Temperature Sensors application, SE97BTP pictures?
You can use Jotrin's intelligent search engine, or filter by Sensors ; I2C Digital Temperature Sensors category, or find it through NXP Semiconductor Information page.
Q: Are the NXP's SE97BTP price and stock displayed on the platform accurate?
The NXP's inventory fluctuates greatly and cannot be updated in time, it will be updated periodically within 24 hours. After submitting an order for SE97BTP, it is recommended to confirm the order with Jotrin salesperson or online customer service before payment.
Q: Can I place an order offline?
Yes. We accept offline orders.
We can provide order placement service. You only need to log in, click "My Orders" to enter the transaction management, and you will see the "Order Details" interface. After checking it, select all and click "Place Order". In addition, you can enjoy coupons or other selected gifts when placing orders online.
Q: What forms of payment can I use in Jotrin?
TT Bank, Paypal, Credit Card, Western Union, and Escrow is all acceptable.
Q: How is the shipping arranged and track my package?
Customers can choose industry-leading freight companies, including DHL, FedEx, UPS, TNT, and Registered Mail.
Once your order has been processed for shipment, our sales will send you an e-mail advising you of the shipping status and tracking number.
Note: It may take up to 24 hours before carriers will display tracking information. In normal conditions, Express delivery needs 3-5 days, Registered Mail needs 25-60 days.
Q: What is the process for returns or replacement of SE97BTP?
All goods will implement Pre-Shipment Inspection (PSI), selected at random from all batches of your order to do a systematic inspection before arranging the shipment. If there is something wrong with the SE97BTP we delivered, we will accept the replacement or return of the SE97BTP only when all of the below conditions are fulfilled:
(1)Such as a deficiency in quantity, delivery of wrong items, and apparent external defects (breakage and rust, etc.), and we acknowledge such problems.
(2)We are informed of the defect described above within 90 days after the delivery of SE97BTP.
(3)The SE97BTP is unused and only in the original unpacked packaging.
Two processes to return the products:
(1)Inform us within 90 days
(2)Obtain Requesting Return Authorizations
More details about return electronic components please see our Return & Change Policy.
Q: How to contact us and get support, such as SE97BTP datasheet pdf, SE97BTP pin diagram?
Need any After-Sales service, please feel free contact us:

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