SMSC EMC1002 DATA SHEET

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EMC1002

1°C Dual SMBus
Sensor with Resistance
Error Correction

PRODUCT FEATURES

General Description

The EMC1002 is an SMBus temperature sensor that
monitors up to two temperature zones and can generate
two system interrupts. With ±1°C measurement
accuracy, the EMC1002 provides a low-cost solution for
critical temperature monitoring applications. Extended
features include automatic resistance error correction
and programmable ideality factor configuration
eliminating both major sources of temperature
measurement error.
temperature-to-digital converter provides superb
linearity, excellent noise immunity and repeatable
temperature readings.

The EMC1002 generates two separate interrupts with
programmable thermal trip points. The THERM
operates as a thermostat with programmable threshold
and hysteresis. The ALERT output can be configured
as a maskable SMBus alert with programmable
window comparator limits, or a second THERM

The EMC1002 is pin compatible with the ADT7461,
ADM1032, LM99, and the MAX6649.

1.Patents pending.

1

The 11-bit sigma delta

output

output.

Data Brief

Features

■ Resistance Error Correction

■ Ideality Factor Configuration

■ Select 1 of 4 SMBus addresses with external resistor

■ Remote Thermal Zones

— ±1°C Accuracy (40°C to 80°C)
— 0.125°C resolution

■ Internal Thermal Zone

— ±3°C Accuracy (0°C to 85°C)

■ Maskable Interrupt using ALERT

■ One-shot Command during standby

■ Programmable temperature conversion rate

■ Extended temperature (-64°C to 191°C) available

■ Over-limit filtering with consecutive counter

■ Small 8-lead SOIC or MSOP package; lead-free also

available

Applications

■ Desktop and Notebook Computers

■ Smart batteries

■ Industrial/Automotive

■ Other Electronic Systems

Simplified Block Diagram

EMC1002

Switching

Current

DP

Analog Mux

11-bit

delta-sigma

ADC

Remote Temp

Register

Internal Te mp

Register

Digital Mux

Limit Comparator

DN

Internal

Temp Diode

SMSC EMC1002 PRODUCT PREVIEW Revision 1.2 (04-15-05)

Address Pointer Register

Conversion Rate Register

High Limit Registers

Low Limit Registers

THERM Limit Register

Digital Mux

THERM Hysteresis Register

Configuration Register

SMBus Interface

SMCLK

SMDATA

Interrupt M askingStatus Register

ALERT

THERM

1°C Dual SMBus Sensor with Resistance Error Correction

r

A

ORDER NUMBER(S):

EMC1002-1-ACM-TR FOR 8 PIN, SOIC PACKAGE (Fixed Address, Tape and Reel)

EMC1002-2-ACM-TR FOR 8 PIN, SOIC PACKAGE (Variable Address, Tape and Reel)

EMC1002-1-ACZT-TR FOR 8 PIN, SOIC GREEN, LEAD-FREE PACKAGE (Fixed Address, Tape and Reel)

EMC1002-2-ACZT-TR FOR 8 PIN, SOIC GREEN, LEAD-FREE PACKAGE (Variable Address, Tape and Reel)

EMC1002-1-ACZB-TR FOR 8 PIN, MSOP PACKAGE (Fixed Address, Tape and Reel)

EMC1002-2-ACZB-TR FOR 8 PIN, MSOP PACKAGE (Variable Address, Tape and Reel)

EMC1002-1-ACZL-TR FOR 8 PIN, MSOP GREEN, LEAD-FREE PACKAGE (Fixed Address, Tape and Reel)

EMC1002-2-ACZL-TR FOR 8 PIN, MSOP GREEN, LEAD-FREE PACKAGE (Variable Address, Tape and Reel)

Reel size is 4,000 pieces.

Evaluation Board available upon request. (EVB-EMC1002)

Hauppauge, NY 11788

[phone]

FAX [phone]

80 Arkay Drive

Copyright © SMSC 2005. All rights reserved.

Circuit diagrams and other information relating to SMSC products are included as a means of illustrating typical applications. Consequently, complete
information sufficient for construction purposes is not necessarily given. Although the information has been checked and is believed to be accurate, no
responsibility is assumed for inaccuracies. SMSC reserves the right to make changes to specifications and product descriptions at any time without
notice. Contact your local SMSC sales office to obtain the latest specifications before placing your product order. The provision of this information does
not convey to the purchaser of the described semiconductor devices any licenses under any patent rights or other intellectual property rights of SMSC
or others. All sales are expressly conditional on your agreement to the terms and conditions of the most recently dated version of SMSC's standard
Terms of Sale Agreement dated before the date of your order (the "Terms of Sale Agreement"). The product may contain design defects or errors
known as anomalies which may cause the product's functions to deviate from published specifications. Anomaly sheets are available upon request.
SMSC products are not designed, intended, authorized or warranted for use in any life support or other application where product failure could cause
or contribute to personal injury or severe property damage. Any and all such uses without prior written approval of an Officer of SMSC and furthe
testing and/or modification will be fully at the risk of the customer. Copies of this document or other SMSC literature, as well as the Terms of Sale

greement, may be obtained by visiting SMSC’s website at http://www.smsc.com. SMSC is a registered trademark of Standard Microsystems

Corporation (“SMSC”). Product names and company names are the trademarks of their respective holders.

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Revision 1.2 (04-15-05) 2 SMSC EMC1002

PRODUCT PREVIEW