Cadence® system design and verification solutions, integrated under our System Development Suite, provide the simulation, acceleration, emulation, and management capabilities.
Verification Suite Related Products A-Z
Cadence® digital design and signoff solutions provide a fast path to design closure and better predictability, helping you meet your power, performance, and area (PPA) targets.
Full-Flow Digital Solution Related Products A-Z
Cadence® custom, analog, and RF design solutions can help you save time by automating many routine tasks, from block-level and mixed-signal simulation to routing and library characterization.
Overview Related Products A-Z
Driving efficiency and accuracy in advanced packaging, system planning, and multi-fabric interoperability, Cadence® package implementation products deliver the automation and accuracy.
Cadence® PCB design solutions enable shorter, more predictable design cycles with greater integration of component design and system-level simulation for a constraint-driven flow.
An open IP platform for you to customize your app-driven SoC design.
Comprehensive solutions and methodologies.
Helping you meet your broader business goals.
A global customer support infrastructure with around-the-clock help.
24/7 Support - Cadence Online Support
Locate the latest software updates, service request, technical documentation, solutions and more in your personalized environment.
Cadence offers various software services for download. This page describes our offerings, including the Allegro FREE Physical Viewer.
The Cadence Academic Network helps build strong relationships between academia and industry, and promotes the proliferation of leading-edge technologies and methodologies at universities renowned for their engineering and design excellence.
Participate in CDNLive
A huge knowledge exchange platform for academia to network with industry. We are looking for academic speakers to talk about their research to the industry attendees at the Academic Track at CDNLive EMEA and Silicon Valley.
Come & Meet Us @ Events
A huge knowledge exchange platform for academia. We are looking for academic speakers to talk about their research to industry attendees.
Americas University Software Program
Join the 250+ qualified Americas member universities who have already incorporated Cadence EDA software into their classrooms and academic research projects.
EMEA University Software Program
In EMEA, Cadence works with EUROPRACTICE to ensure cost-effective availability of our extensive electronic design automation (EDA) tools for non-commercial activities.
Apply Now For Jobs
If you are a recent college graduate or a student looking for internship. Visit our exclusive job search page for interns and recent college graduate jobs.
Cadence is a Great Place to do great work
Learn more about our internship program and visit our careers page to do meaningful work and make a great impact.
Get the most out of your investment in Cadence technologies through a wide range of training offerings.
Overview All Courses Asia Pacific EMEANorth America
Instructor-led training [ILT] are live classes that are offered in our state-of-the-art classrooms at our worldwide training centers, at your site, or as a Virtual classroom.
Online Training is delivered over the web to let you proceed at your own pace, anytime and anywhere.
Exchange ideas, news, technical information, and best practices.
The community is open to everyone, and to provide the most value, we require participants to follow our Community Guidelines that facilitate a quality exchange of ideas and information.
It's not all about the technlogy. Here we exchange ideas on the Cadence Academic Network and other subjects of general interest.
Cadence is a leading provider of system design tools, software, IP, and services.
How We can simulate our circuit descibed in old spice format as shown below?Can we simulate them in Spectre? We are using ICFB 5.141 USR3.Attached a complete workable spice file for XOR gate. Can Spectre run this file ? Kind RegardsMayankm1000 Vdd A a_n20_44# Vdd pfet w=12u l=3u+ ad=320p pd=160u as=76p ps=40u V1 B 0 PULSE (0 5v 0 0 0 70ns 100ns)V2 A 0 PULSE (0 5v 0 0 0 25ns 60ns)Vdd Vdd 0 DC=5.0.TRAN 5ns 100ns.MODEL nfet NMOS (level=2 LD=0.15U TOX=200.0E-10 NSUB=5.37E+15+ VTO=0.74 KP=8.0E-05 GAMMA=0.54 PHI=0.6 U0=656 UEXP=0.157 UCRIT=31444+ DELTA=2.34 VMAX=55261 Xj=0.2U LAMBDA=0.037 NFS=1E+12 NEFF=1.001 NSS=1E+11+ TPG=1.0 RSH=70.00+ CGDO=4.3E-10 CGSO=4.3E-10 Cj=0.0003 Mj=0.66+ CJSW=8.0E-10 MJSW=0.24 PB=0.58.MODEL pfet PMOS (level=2 LD=0.15U TOX=200.0E-10 NSUB=4.33E+15+ VTO=-0.74 KP=2.70E-05 GAMMA=0.58 PHI=0.6 U0=262 UEXP=0.324 UCRIT=65720+ DELTA=1.79 VMAX=25694 Xj=0.25U LAMBDA=0.061 NFS=1E+12 NEFF=1.001 NSS=1E+11+ TPG=1.0 RSH=121.00+ CGDO=4.3E-10 CGSO=4.3E-10 Cj=0.0005 Mj=0.51+ CJSW=1.35E-10 MJSW=0.24 PB=0.64.END
With 5.1.41 you can turn on the +csfe option to spectre to read spice netlists.
unix> spectre +csfe test.ckt
Your netlist above will still fail since the rise
and fall times of V1 and V2 are 0.
Also, you need to change 5v to just 5.
The 5v will only give a warning, but zero rise/fall will give an error (it's meaningless anyway).If using MMSIM60, the new front end is on by default, so you can just run spectre on it directly (assuming you've fixed the rise/fall times to something meaningful).Regards,Andrew.