STMicroelectronics Reveals Class-Leading High-Stability

STMicroelectronics Reveals Class-Leading High-Stability Real-Time
Clock for Smart Utility Meters and Precision Applications 
Temperature-Compensated Timing IC With Lowest Power Consumption and
Superior Corrosion Resistance Delivers Best Performance in All
Environments 
GENEVA -- (Marketwire) -- 11/13/12 --  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 degrees 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 degrees C (c. 2.5 minutes per year)
    --  +/-3.8 ppm max from 0 to 50 degrees 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. 
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  
For Press Information Contact:
STMicroelectronics
Michael Markowitz
Director Technical Media Relations
+1 781 591 0354
michael.markowitz@st.com