Overall Features
The ICAP systems are complete circuit design and analysis packages
featuring Schematic Entry, Interactive Circuit Simulation, Extensive
Device Libraries, and Powerful Data Processing, all integrated in one
easy to use environment.

IsSpice4 Simulator Features
Interactive Simulation Control - The user is free to start, pause,
step, resume, or abort the simulation on demand.  Changes in the
circuit values and measurements can all be made interactively without
leaving the program.  

Parameter Stimulus - All component values, sources, device
temperatures, and model parameters can be hand tweaked and the
circuit instantly resimulated.  This provides immediate feedback of
the resulting performance changes.  As the values are changed,
waveforms are automatically gathered into a family.

Expression Stimulus - Several parameters may be swept in tandem. 
This is similar to the Parameter Stimulus feature except any number
of parameters can be sweep together.  Each parameter may be defined
by an equation.

Interactive Measurements - Monitor voltages, currents, and computed
device parameters such as power dissipation, BJT Vbe, and FET gm
during the simulation.  Over 150 different measurements are
available.

Real Time Waveform Display - IsSpice4 provides the user with more
simulation information than any other SPICE program.  Voltages,
currents, device power dissipations and computed device parameters,
from anywhere in the circuit, can all be displayed while the
simulation is running.  Additional circuit waveforms or measurements
can be added to the real time display during the analysis.  Data from
past simulations can be recalled instantly and compared.

ICL, Interactive Command Language - A wide variety of commands are
available to control the simulation flow: Simulation Breakpoints - A
unique feature that allows IsSpice4 to stop the simulation when
voltages, currents, or computed device parameters, meet a user
defined condition.  Control Loops - A set of commands that will check
for simulation breakpoints, alter various parameter values, and print
out results, while a series of analyses are run.

Hot Links To Schematic Entry and Post Processor - Using a simple
interprocess command language, simulation data can be made available
to other circuit design tools.  In the Intusoft system, this allows
all the simulation data produced by IsSpice4 to seamlessly appear on
the schematic or be sent to IntuScope for further detailed analysis.

Third Party Support - An interface specification is available that
will allow IsSpice4 to be interfaced to third party schematic entry
systems and post processors using the same interactive hot links
contained in ICAP systems.

Schematic Entry Features
Integration - The entire design process, including graphical circuit
editing, SPICE netlist generation, simulation control, and
measurement and waveform display, can be driven from the schematic. 
Real Time Cross Probing - New Cross Probing tool allows circuit
waveforms to pop-up directly on the schematic.  Operating Point -
Operating point voltages can be displayed on the schematic as circuit
parameters are varied.  Hot links to Post Processor - SpiceNet can
display post processed simulation data, as well as choose which
circuit waveforms are sent to IntuScope.

Model Libraries
Unique Models - Over 8000 analog and digital models are included. 
Many of the models are unique and are only available from Intusoft,
such as those for: IGBTs, Fuses, Vacuum Tubes, switched capacitor
filters, laser diodes, dual-gate Mosfets, thermistors, and varistors.

Data Processing
Waveform Access - IntuScope has access to all simulation data
including voltage, current and device power dissipation waveforms. 
Math Functions - Waveforms can be viewed and post processed using a
comprehensive set of mathematical functions in a graphical
oscilloscope type environment.

Other Products
Modeling - SpiceMod, The SPICE Modeling Spreadsheet makes SPICE
models from data sheet parameters.

RF Library - A specialized RF Device Model Library containing over
300 parts (PIN Diodes, Mesfets, BJTs, Beads).

Vendor Supplied Models - Over 1400 IC models supplied by various
hardware manufacturer's are available (These models are not included
in the ICAP/4Windows system).

SPICE Reference Books - Spice Applications Handbook, and A Spice Cookbook

Other Services
FREE Models - The Intusoft technical support staff makes SPICE models
FREE of charge to registered customers.

BBS - Intusoft maintains a Compuserve Bulletin Board with FREE
models, applications notes, and software updates.  Intusoft
Newsletter - FREE bimonthly publication with SPICE application notes
and models.

Operating System/Requirements
PC running Windows, PC, MIPS, or Digital Alphas running WindowsNT,
Power Macintosh, or Macintosh running System 7.x, 4 Megabytes of RAM
8-16 megs recommended.  