SE98PW,118 datasheet, PDF - EEWORLD Datasheet

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SE98PW,118: DescriptionIC TEMP SENSOR I2C 8TSSOP; CategoryThe sensor; File Size184KB，39 Pages; ManufacturerNXP; Websitehttps://www.nxp.com; Environmental Compliance

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SE98PW,118 Overview

IC TEMP SENSOR I2C 8TSSOP

SE98PW,118 Parametric

Parameter Name	Attribute value
Brand Name	NXP Semiconductor
Is it Rohs certified?	conform to
Maker	NXP
package instruction	TSSOP8,.25
Reach Compliance Code	unknown
Maximum accuracy (Celsius)	4 Cel
body width	3 mm
body height	1.1 mm
Body length or diameter	4.4 mm
shell	PLASTIC
JESD-609 code	e4
Installation features	SURFACE MOUNT
Number of digits	16
Number of terminals	8
Maximum working current	0.25 mA
Maximum operating temperature	125 °C
Minimum operating temperature	-20 °C
Output interface type	2-WIRE INTERFACE
Package body material	PLASTIC/EPOXY
Encapsulate equivalent code	TSSOP8,.25
Package Shape/Form	RECTANGULAR
power supply	3.3 V
Sensor/temperature sensor type	TEMPERATURE SENSOR,SWITCH/DIGITAL OUTPUT,SERIAL
Maximum supply voltage	3.6 V
Minimum supply voltage	3 V
surface mount	YES
Terminal surface	Nickel/Palladium/Gold (Ni/Pd/Au)
Termination type	SOLDER

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SE98

DDR memory module temp sensor, 3.3 V

Rev. 04 — 2 February 2009

Product data sheet

1. General description

The NXP Semiconductors SE98 measures temperature from

−40 °C

to +125

°C

communicating via the I

C-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 (T

case

) to prevent it from

exceeding the maximum operating temperature of 85

°C.

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 % 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 I

C-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 I

C-bus/SMBus interface the electrical speciﬁcations are

speciﬁed with the operating voltage of 3.0 V to 3.6 V.

SE98PW,118 Related Products

	SE98PW,118	SE98TK,118
Description	IC TEMP SENSOR I2C 8TSSOP	IC TEMP SENSOR I2C 8HVSON
Brand Name	NXP Semiconductor	NXP Semiconductor
Is it Rohs certified?	conform to	conform to
Maker	NXP	NXP
package instruction	TSSOP8,.25	SOLCC8,.11,20
Reach Compliance Code	unknown	unknown
Maximum accuracy (Celsius)	4 Cel	4 Cel
body width	3 mm	3 mm
body height	1.1 mm	1 mm
Body length or diameter	4.4 mm	3 mm
shell	PLASTIC	PLASTIC
JESD-609 code	e4	e4
Installation features	SURFACE MOUNT	SURFACE MOUNT
Number of digits	16	16
Number of terminals	8	8
Maximum working current	0.25 mA	0.25 mA
Maximum operating temperature	125 °C	125 °C
Minimum operating temperature	-20 °C	-20 °C
Output interface type	2-WIRE INTERFACE	2-WIRE INTERFACE
Package body material	PLASTIC/EPOXY	PLASTIC/EPOXY
Encapsulate equivalent code	TSSOP8,.25	SOLCC8,.11,20
Package Shape/Form	RECTANGULAR	SQUARE
power supply	3.3 V	3.3 V
Maximum supply voltage	3.6 V	3.6 V
Minimum supply voltage	3 V	3 V
surface mount	YES	YES
Terminal surface	Nickel/Palladium/Gold (Ni/Pd/Au)	Nickel/Palladium/Gold (Ni/Pd/Au)
Termination type	SOLDER	SOLDER

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