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SMSC Introduces High-Speed, Single-Wire SST Sensors

June 20, 2006

Devices use beta compensation, which adjusts for inconsistent behavior typically seen in substrate diodes at 65 nm and in advanced-processor geometries.


HAUPPAUGE, N.Y. /BUSINESS WIRE/ -- SMSC introduced a set of temperature-sensing devices, the EMC1102 and EMC1152, that are compliant with Intel's new high-speed, single-wire simple serial transport (SST) bus.

Both devices employ beta compensation, which is a new technology used to accurately measure temperature from a 65 nm processor. Beta compensation technology adjusts for inconsistent behavior typically seen in substrate diodes at 65 nm and in advanced processor geometries. In addition, the EMC1102 and EMC1152 are extremely accurate, with both ambient and external temperature accuracy rates of ±1°C. Each device is a dual-temperature sensor, but the EMC1152 also measures five supply voltages in desktop PCs, allowing it to monitor supply voltage rails on the motherboard.

"We are pleased that, in alignment with the introduction of our Intel 965 Express Chipset Family, SMSC has engineered and delivered a series of new SST-compatible sensors to meet the needs of innovative platforms throughout the PC industry," said Steve R. Peterson, director of chipset and software marketing at Intel.

"At SMSC, our goal is to understand the needs of our customers and to rapidly develop solutions that not only meet those needs but offer a competitive advantage," said Mark Beadle, director of marketing—environmental monitoring and control products at SMSC. "In this case, helping our customers quickly implement the Intel 2006 desktop architecture by providing SST-compliant devices was bolstered by our use of proprietary technology that boosts temperature sensing accuracy at advanced processor nodes."

Key Features

EMC1102 Features

  • Single-wire interface (SST-based)
    • SST 1.0–compliant
    • Fixed address, discoverable device
    • Nine programmable addresses
  • Resistance error correction
  • Ideality configuration
  • Beta compensation
  • External temperature monitor
    • 0.125°C resolution
    • ±1°C accuracy 50°C to 70°C
    • Diode fault reporting
  • Internal temperature monitor
  • Range -40°C to 125°C
  • 0.125°C resolution
  • ±1°C accuracy 40°C to 125°C 3.0 V to 3.6V

EMC1152 Features

  • Single-wire interface (SST-based)
    • SST 1.0 compliant
    • Fixed address, discoverable device
    • Three programmable addresses
  • Resistance error correction
  • Ideality configuration
  • Beta compensation
  • External temperature monitor
    • 0.125°C resolution
    • ±1°C accuracy 50°C to 70°C
    • Diode fault reporting
  • Internal temperature monitor
    • Range -40°C to 125°C
    • 0.125 degree C resolution
    • ±1°C accuracy 40°C to 70°C
  • Voltage monitor
    • 12 V, 5 V, 3.3 V, 2.5 V, VCCP inputs
    • 2% accuracy
    • 11-bit resolution
  • Supply:
    • 3.0 V to 3.6 V

Availability & Pricing
Production samples of both the EMC1102 and EMC1152 are available now. Pricing for each part is $0.90 and $1.20, respectively, in 10K quantities. The EMC1102 is available in an 8-pin MSOP, green, lead-free package, and the EMC1102 is available in a 10-pin MSOP, green, lead-free package.

About SMSC
Many of the world's most successful global technology companies rely on SMSC as a go-to resource for semiconductor system solutions that span analog, digital, and mixed-signal technologies. Leveraging substantial intellectual property, integration expertise, and a comprehensive global infrastructure, SMSC solves design challenges and delivers performance, space, cost, and time-to-market advantages to its customers. SMSC's application focus targets key vertical markets, including mobile and desktop PCs, servers, consumer electronics, automotive, infotainment, and industrial applications. The company has developed leadership positions in its select markets by providing application-specific solutions, such as mixed-signal PC system controllers, non-PCI Ethernet, ARCNET, MOST, and Hi-Speed USB.

SMSC is headquartered in Hauppauge, N.Y., with operations in North America, Asia, and Europe. Engineering design centers are located in Arizona, New York, Texas, and Karlsruhe, Germany. Additional information is available at the company's Web site.

SMSC is a registered trademark of Standard Microsystems Corporation. Product names and company names are trademarks of their respective holders.


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