New with Version 5.4 of MicroSim Corporation's Design Center

Signal Integrity Analysis, Marching Waveforms, Networked PC Support,
Integration into Mentor Graphics' Falcon Framework, and More!!!

June 1, 1993 -- (Irvine, CA) MicroSim Corporation has further enhanced the
Design Center for design and verification of board layouts by introducing
Signal Integrity Analysis, as well as interfaces to the P-CAD, Tango, and
CADStar board layout packages (adding to the existing PADS and Protel
interfaces). The Signal Integrity program, Polaris, is an analysis tool
for extracting transmission line, parasitic capacitance, and coupling
values from printed circuit board (PCB) layouts. Extracted values are then
applied to circuit simulations in PSpice, providing for analysis of
crosstalk, reflection, and delay effects in the circuit design. Thus, the
Design Center offers a streamlined and cost-effective approach to the
circuit design process, providing the functions necessary to verify that
the circuit will perform to specification after the layout is created and
before boards are manufactured.

The Design Center with schematic capture now provides the Marching Waveform
feature allowing for concurrent viewing of simulation results in Probe
while the PSpice simulation proceeds. Thus, simulation progress can be
actively monitored, allowing for early detection of anomalous behavior in
the circuit. If necessary, the simulation can be aborted, corrections made
to the design, and a new simulation started without delay.

Network licensing is now available for the Design Center under either
Microsoft Windows or DOS/16M operating environments. Thus, one or more
copies of the Design Center can be run on any node in the network without
being locked to a specific node.

PSpice and Probe are now available as integrated members of Mentor
Graphics' Falcon Framework on the Sun and HP9000/700. Analog, digital, and
mixed analog/digital circuits captured using Mentor Graphics' Design
Architect schematic editor, can be simulated using PSpice with results
graphically analyzed using Probe, all from within the Design Architect
environment. Since PSpice and Probe are encapsulated under Mentor
Graphics' Design Manager, they can also be invoked directly. Using this
method, PSpice can be run with either schematic or circuit file input.
Either way, Falcon Framework users now have access to all of the PSpice
and Probe features which include Monte Carlo analysis with histogram
display of results, Analog Behavioral Modeling, lossy transmission lines,
event-driven digital simulation including worst-case timing, and analog
and digital model libraries with over 7,000 devices.

The Design Center continues to be unique in the EDA industry for its
"native" support of both analog and digital circuits at all levels of the
design process, including simulation with PSpice. The analog and digital
algorithms are tightly coupled within the same program. Hence, only one
circuit need be defined, only one simulation need be run, and only one
graphical interface is needed to analyze the results of a mixed analog and
digital circuit.

There are three Design Center configurations from which to choose. Our
full-featured configuration with schematic capture is available under
Microsoft Windows and Sun OpenWindows ranging from $8,200 to $15,900
($10,700 to $20,700 for international sales) depending upon platform and
network configuration. Two reduced configurations are available without
schematic capture. Under DOS/16M, the Design Center is available with a
shell manager that coordinates circuit file editing, PSpice simulations,
graphical waveform analysis, and stimulus generation. Prices range from
$1,495 to $5,450 ($1,950 to $7,100 for international sales) depending upon
network configuration. Our final configuration allows for direct
management of the Design Center programs on the Macintosh, HP9000/700, or
Sun/OpenWindows, with prices ranging from $1,495 to $11,900 ($1,950 to
$15,500 for international sales) depending upon platform.

Signal Integrity Analysis is sold as an addition to the Design Center with
schematic capture under Microsoft Windows. It can be purchased at our
introductory Price of $4,875.00 ($6,337.50 for international sales)
through August 31, 1993. Beginning September 1, 1993, the price will be
$7,500 ($9,750 for international sales).

Any Design Center configuration can be purchased with these additional
Programs:

* Device Equations, which supplies partial source code that can be modified
to tailor a device's behavior to your application. Prices range from $350
to $2,600 ($450 to $3,400 for international sales) depending upon
platform.

* Filter Synthesis, for realizing active and passive filters supporting RC
active, switched-capacitor, and LC ladder architectures. The price is $900
($1,200 for international sales) on the IBM-PC or Macintosh.

PSpice and Probe integrated into Mentor Graphics' Falcon Framework for the
Sun and HP9000/700 is sold separately at $4,950 ($6,450 for international
sales).

For more information about MicroSim Corporation's Design Center, please
call us at (714) 770-3022, or toll free at (800) 245-3022.

MicroSim Corp, 20 Fairbanks, Irvine, CA 92718
714-770-3022;  800-245-3022;  fax: 714-455-0554

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