CPU
Other
PHY
 
HOME > Product > Other > other > SE98PW,118
 
 

SE98PW,118

Product Code : -
( Unit : U.S dollar )
1~99
100~499
500~999
1000~
price per box
quantity per box
RoHS : -
Stock : 2,500
Application : COMMON
Call TEL. +82-2-3397-3613
 
 
 
*General description

The NXP Semiconductors SE98 measures temperature from -40 Cel to +125 Cel 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 Component specification.

Placing the Temp Sensor (TS) on DIMM allows accurate monitoring of the DIMM module temperature to better estimate the DRAM case temperature (Tcase) to prevent it from exceeding the maximum operating temperature of 85 Cel. The chip set throttles the memory traffic based on the actual temperatures instead of the calculated worst-case temperature or the ambient temperature using a temp sensor mounted on the motherboard. There is up to a 30 pct improvement in thin and light notebooks that are using one or two 1G SO-DIMM modules, although other memory modules such as in server applications will also see an increase in system performance. Future uses of the TS will include more dynamic control over thermal throttling, the ability to use the Alarm Window to create multiple temperature zones for dynamic throttling and to save processor time by scaling the memory refresh rate.

The 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 SE98 outputs an EVENT signal. 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 SE98 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. To maintain interchangeability with the I2C-bus/SMBus interface the electrical specifications are specified with the operating voltage of 3.0 V to 3.6 V.

 
**Features

*General features
  • JEDEC (JC-42.4) SO-DIMM temperature sensor
  • Optimized for voltage range: 3.0 V to 3.6 V
  • Shutdown/Standby current: 8 uA (typ.) and 15 uA (max.)
  • 2-wire interface: I2C-bus/SMBus compatible, 0 Hz to 400 kHz
  • SMBus ALERT and TIMEOUT (programmable)
  • Available packages: TSSOP8 and HVSON8

*Temperature sensor features

  • Temperature-to-Digital converter
  • Operating current: 200 uA (typ.) and 250 uA (max.)
  • Programmable hysteresis threshold: 0 Cel, 1.5 Cel, 3 Cel, 6 Cel
  • Over/under/critical temperature EVENT output
  • C grade accuracy:
    • +-1 Cel/+-2 Cel (typ./max.) → +75 Cel to +95 Cel
    • +-2 Cel/+-3 Cel (typ./max.) → +40 Cel to +125 Cel
    • +-3 Cel/+-4 Cel (typ./max.) → -40 Cel to +125 Cel
 

Datasheet : datasheet

 
 
Delivery

1. The initial delivery day shall be the day following the day on which the product is forwarded to the delivery service.
1) Regular home-delivery (excluding order date and holidays): Seoul/Gyeonggi 3~5days, other regions 3~8days
2) Postal service: Seoul/Gyeonggi 3~5days
2. During public holidays and weekends, there will be no delivery, and any other days during which delivery is impracticable due to a force majeure event may cause delay in the delivery.
3. The buyers both within and outside of Korea shall be responsible for any delivery fee that may arise. But the products bought over 300,000 won will be delivered free of charge.

Cancellation and Refund

1. The buyer may cancel the purchase order before the product is shipped, and if the product is in the process of being delivered, transaction shall be handled pursuant to the Article 15 of products return.
2. If the product is on standby for delivery after the payment, the buyer may cancel the order at any time except for the particular circumstances.
3. If credit card has been used for the payment, the payment shall immediately be refunded as soon as the cancellation process is completed. If cash has been used for the payment, the payment shall be refunded in 5 business days via direct account transfer or others.

Return and Exchange

1. The buyer may demand a return of the product within three days after the receipt of the delivery.
2. The cost for the return delivery shall be borne by the liable party.
3. The payment of refund upon return of the product shall be completed within 5 days after the Company has received the product from the buyer.
4. The Company shall refund, return and exchange in accordance with the buyer’s demand in the following cases. Such transaction shall be processed within 10 days after the delivery.
1) Delivered product does not match with the purchase order.
2) Delivered product is lost or damaged due to the Company’s error.
3) Delivery is considerably delayed than what has been scheduled.
4) Otherwise, legitimate reasons are submitted to the Company for the demand by the buyer.

Delivery/Returned goods/Exchange Address

Guro branch : 3127, Ma-Dong, Central Distribution Complex, 1258, Guro-Dong, Guro-Gu, Seoul, Korea, 152-721
TEL : +82-2-2681-5517(REP)
FAX : +82-2-2681-5518
Support: +82-2-3397-3613
E-mail : shop@semidj.com

Overseas Delivery Service

1. The Company provides the service in accordance with the overseas delivery procedure of the products whose trade contract is already signed through the overseas delivery network that has business connection with the Company. Overseas delivery is divided into as follows:
1) A domestic delivery phase: until the buyer’s product is delivered to a logistics center of a third party in business cooperation with the Company
2) An overseas delivery phase: until the product is delivered to the recipient through the overseas delivery network
2. For overseas delivery, the buyer’s order may be cancelled depending on the status of the delivery request. Return requested due to change of mind during delivery is limited to the phase of domestic delivery. Once the product has completed the domestic delivery phase and entered the overseas delivery phase, a return is not permitted unless the Company approves return or exchange due to an original defect in the delivered product.
3. A buyer requesting the Company’s approval on return or exchange must approve the original product defect or other grounds for return or exchange by submitting to the Company objective evidence. The costs and expenses for the delivery in connection with the return or exchange shall be paid by the Company once objective evidence has been approved.
4. The buyer who has received an approval to return or exchange of the product from the Company shall contact the DJmall customer center before the return of the product, including documents to verify costs and expenses for the delivery.
5. If the estimated cost of the delivery paid at purchase is greater than the actual delivery cost, the difference will be refunded to the buyer.
6. If the estimated cost of the delivery paid at purchase is less than the actual delivery cost, the buyer must make an additional payment to complete the delivery. If the difference is not paid within 3 months despite of continuous notice, the product may become the Company’s own property.
7. In the event of using overseas delivery service, the recipient is liable for all customs, taxes, duties and other cost imposes by the country to which the delivery is made.
'BUYER IS RESPONSIBLE FOR THE DELIVERY FEE'