DDR memory module temp sensor, 1.7 V to 3.6 V | NXP Semiconductors

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DDR memory module temp sensor, 1.7 V to 3.6 V

SE98APW
No Longer Manufactured
  • This page contains information on a product that is no longer manufactured (discontinued). Specifications and information herein are available for historical reference only.

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The NXP Semiconductors SE98A measures temperature from -40 ºC and +125 ºC with JEDEC Grade B ±1 ºC accuracy between +75 ºC and +95 ºC communicating via the I2C-bus/SMBus. It is typically mounted on a Dual In-Line Memory Module (DIMM) measuring the DRAM temperature in accordance with the new JEDEC (JC-42.4) Mobile Platform Memory Module Thermal Sensor Componentspecification.

The SE98A thermal sensor operates over the VDD range of 1.7 V to 3.6 V. The SE98A does not include the 2 k SPD and is designed for custom DIMM where larger SPD is required.

The Temp Sensor (TS) consists of an Analog-to-Digital Converter (ADC) that monitors and updates its own temperature readings 8 times per second, converts the reading to a digital data, and latches them into the data temperature registers. User-programmable registers, such as Shutdown or Low-power modes and the specification of temperature event and critical output boundaries, provide flexibility for DIMM temperature-sensing applications.

When the temperature changes beyond the specified boundary limits, the SE98A 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 even be configured as a critical temperature output.

The SE98A 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 identify of the device. Three address pins allow up to eight devices to be controlled on a single bus.

The SE98A is an improved SE98 and is comparable to the thermal sensor in the SE97 but with voltage range of 1.7 V to 3.6 V.

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Standby current [typ] (µA)

Operating Temperature (°C)

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SE98APW
Data Sheet

Replacement part(s): SE98ATP

5

-20~125

2@-75~95?3@40~125

3.0~3.6

8

400

N true 0 PSPSE98APWen 4 Application Note Application Note t789 1 Data Sheet Data Sheet t520 1 Package Information Package Information t790 1 User Guide User Guide t792 1 en_US en_US en Data Sheet Data Sheet 1 1 4.0 English 1442060920804709667984 PSP 849.0 KB None None documents None 1442060920804709667984 /docs/en/data-sheet/SE98A.pdf 849000 /docs/en/data-sheet/SE98A.pdf SE98A documents N 2015-09-12 DDR memory module temp sensor, 1.7 V to 3.6 V /docs/en/data-sheet/SE98A.pdf /docs/en/data-sheet/SE98A.pdf Data Sheet N 980000996212993340 2022-12-07 pdf en Nov 25, 2009 980000996212993340 Data Sheet Y N DDR memory module temp sensor, 1.7 V to 3.6 V Application Note Application Note 1 2 1.0 English 1442087689485731980491 PSP 4.3 MB None None documents None 1442087689485731980491 /docs/en/application-note/AN10216.pdf 4320295 /docs/en/application-note/AN10216.pdf AN10216 documents N N 2016-07-05 AN10216 /docs/en/application-note/AN10216.pdf /docs/en/application-note/AN10216.pdf Application Note N 645036621402383989 2024-10-21 pdf N en Mar 27, 2003 645036621402383989 Application Note Y N AN10216 User Guide User Guide 1 3 6.0 Japanese 1442125286808710770774ja PSP 751.0 KB None None documents None 1442125286808710770774 /docs/ja/user-guide/UM10204.pdf 750958 /docs/ja/user-guide/UM10204.pdf UM10204 documents N N 2016-07-12 I2C-bus specification and user manual /docs/ja/user-guide/UM10204.pdf /docs/ja/user-guide/UM10204.pdf User Guide N 132339537837198660 2024-10-24 ja Apr 28, 2014 132339537837198660 User Guide Y N I2C-bus specification and user manual 7.0 English NXP Semiconductors developed a simple bidirectional 2-wire bus for efficient inter-IC control. This bus is called the Inter-IC or I2C-bus. Only two bus lines are required: a serial data line (SDA) and a serial clock line (SCL). Serial, 8-bit oriented, bidirectional data transfers can be made at up to 100 kbit/s in the Standard-mode, up to 400 kbit/s in the Fast-mode, up to 1 Mbit/s in the Fast-mode Plus (Fm+), or up to 3.4 Mbit/s in the High-speed mode. 1442125286808710770774 PSP 751.0 KB None None documents None 1442125286808710770774 /docs/en/user-guide/UM10204.pdf 750958 /docs/en/user-guide/UM10204.pdf UM10204 documents N N 2016-07-12 I2C-bus specification and user manual /docs/en/user-guide/UM10204.pdf /docs/en/user-guide/UM10204.pdf User Guide N 132339537837198660 2024-10-24 pdf N en Oct 1, 2021 132339537837198660 User Guide Y N I2C-bus specification and user manual Package Information Package Information 1 4 1.0 English 1455078775313713382708 PSP 182.0 KB None None documents None 1455078775313713382708 /docs/en/package-information/SOT530-1.pdf 182000 /docs/en/package-information/SOT530-1.pdf SOT530-1 documents N 2016-02-09 plastic thin shrink small outline package; 8 leads; body width 4.4 mm /docs/en/package-information/SOT530-1.pdf /docs/en/package-information/SOT530-1.pdf Package Information N 302435339416912908 2022-12-07 pdf en Feb 8, 2016 302435339416912908 Package Information Y N plastic thin shrink small outline package; 8 leads; body width 4.4 mm false 0 SE98APW downloads en true 1 Y PSP Application Note 1 /docs/en/application-note/AN10216.pdf 2016-07-05 1442087689485731980491 PSP 2 Mar 27, 2003 Application Note None /docs/en/application-note/AN10216.pdf English documents 4320295 None 645036621402383989 2024-10-21 N /docs/en/application-note/AN10216.pdf AN10216 /docs/en/application-note/AN10216.pdf documents 645036621402383989 Application Note N en None Y pdf 1.0 N N AN10216 4.3 MB AN10216 N 1442087689485731980491 Data Sheet 1 /docs/en/data-sheet/SE98A.pdf 2015-09-12 1442060920804709667984 PSP 1 Nov 25, 2009 Data Sheet None /docs/en/data-sheet/SE98A.pdf English documents 849000 None 980000996212993340 2022-12-07 /docs/en/data-sheet/SE98A.pdf DDR memory module temp sensor, 1.7 V to 3.6 V /docs/en/data-sheet/SE98A.pdf documents 980000996212993340 Data Sheet N en None Y pdf 4.0 N DDR memory module temp sensor, 1.7 V to 3.6 V 849.0 KB SE98A N 1442060920804709667984 Package Information 1 /docs/en/package-information/SOT530-1.pdf 2016-02-09 1455078775313713382708 PSP 4 Feb 8, 2016 Package Information None /docs/en/package-information/SOT530-1.pdf English documents 182000 None 302435339416912908 2022-12-07 /docs/en/package-information/SOT530-1.pdf plastic thin shrink small outline package; 8 leads; body width 4.4 mm /docs/en/package-information/SOT530-1.pdf documents 302435339416912908 Package Information N en None Y pdf 1.0 N plastic thin shrink small outline package; 8 leads; body width 4.4 mm 182.0 KB SOT530-1 N 1455078775313713382708 User Guide 1 /docs/en/user-guide/UM10204.pdf 2016-07-12 1442125286808710770774 PSP 3 Oct 1, 2021 User Guide NXP Semiconductors developed a simple bidirectional 2-wire bus for efficient inter-IC control. This bus is called the Inter-IC or I2C-bus. Only two bus lines are required: a serial data line (SDA) and a serial clock line (SCL). Serial, 8-bit oriented, bidirectional data transfers can be made at up to 100 kbit/s in the Standard-mode, up to 400 kbit/s in the Fast-mode, up to 1 Mbit/s in the Fast-mode Plus (Fm+), or up to 3.4 Mbit/s in the High-speed mode. None /docs/en/user-guide/UM10204.pdf English documents 750958 None 132339537837198660 2024-10-24 N /docs/en/user-guide/UM10204.pdf I2C-bus specification and user manual /docs/en/user-guide/UM10204.pdf documents 132339537837198660 User Guide N en None Y pdf 7.0 N N I2C-bus specification and user manual 751.0 KB UM10204 N 1442125286808710770774 true Y Products

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