STMicroelectronics Reveals Class-Leading High-Stability Real-Time Clock for Smart Utility Meters and Precision Applications
(Thomson Reuters ONE) -
Temperature-compensated timing IC with lowest power consumption and superior
corrosion resistance delivers best performance in all environments
Geneva, November 13, 2012 - STMicroelectronics (NYSE: STM), a global
semiconductor leader serving customers across the spectrum of electronics
applications, has achieved record low power consumption in a highly accurate
temperature-compensated real-time clock chip for utility meters and other
equipment including medical devices and industrial systems that require stable,
precision timing.
Typically drawing only 0.8 uA with temperature compensation fully operational,
the M41TC8025 single-chip real-time clock has lower power consumption than any
alternative device. This helps reduce operating costs for electronic utility
meters and can extend the lifetime of battery-powered equipment. Temperature
compensation guarantees accuracy to within 2.5 minutes per year (±5 ppm) over
the entire specified temperature range from -40 to +85 °C. In metering
applications, this allows precise time stamping and tariff switching across
seasons and in various climates.
Tests with a lead customer have revealed another advantage of the M41TC8025;
superior corrosion resistance. The customer, a producer of electronic utility
meters for use outdoors in harsh environments such as coastal regions, performed
corrosion testing and found that ST's new single-chip real-time clock
outperforms functionally equivalent devices, owing to its high-quality package
design and materials.
The M41TC8025 generates accurate date and time information in seconds, minutes,
hours, day-of-week, date (day of month), month and year, and helps simplify
system design by providing extra integrated functions including an alarm, fixed-
cycle timer, time-update interrupt, and programmable frequency outputs. The
device integrates a temperature-compensated 32768 Hz crystal oscillator as
precision timing reference, which helps minimize component count and simplify
system hardware design.
Major features of M41TC8025:
* 0.8 uA typical current at 3.0V supply voltage
* Guaranteed accuracy over temperature:
* ±5.0 ppm max from -40 to 85 °C (c. 2.5 minutes per year)
* ±3.8 ppm max from 0 to 50 °C (better than 2 minutes per year)
* Embedded high-stability 32 KHz temperature-compensated crystal oscillator
* Time-of-day alarm (with interrupt)
* Fixed-cycle timer-interrupt function
* Time-update interrupt function
* Programmable frequency output (1 Hz, 1024 Hz and 32768 Hz)
* 400kHz I(2)C interface
The M41TC8025 is sampling now to lead customers, in the SO-14 surface-mount
package, priced from $2.80 in quantities over 1,000 pieces. Alternative pricing
options for higher quantities are available on request. Mass production begins
in November 2012.
About STMicroelectronics
ST is a global leader in the semiconductor market serving customers across the
spectrum of sense and power technologies and multimedia convergence
applications. From energy management and savings to trust and data security,
from healthcare and wellness to smart consumer devices, in the home, car and
office, at work and at play, ST is found everywhere microelectronics make a
positive and innovative contribution to people's life. By getting more from
technology to get more from life, ST stands for life.augmented.
In 2011, the Company's net revenues were $9.73 billion. Further information on
ST can be found at www.st.com.
For Press Information Contact:
STMicroelectronics
Michael Markowitz
Director Technical Media Relations
+1 781 591 0354
michael.markowitz(at)st.com
ST Real-Time Clock PR:
http://hugin.info/152740/R/1657223/535963.pdf
ST Real-TIme Clock PR_IMAGE:
http://hugin.info/152740/R/1657223/535964.jpg
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Source: STMicroelectronics via Thomson Reuters ONE
[HUG#1657223]
Unternehmensinformation / Kurzprofil:
Datum: 13.11.2012 - 14:30 Uhr
Sprache: Deutsch
News-ID 202828
Anzahl Zeichen: 4846
contact information:
Town:
Geneva
Kategorie:
Business News
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