PayPal Acceptance Mark
Upgrades    Order terms    Contact   

Your payment will be processed by PayPal checkout services. You can pay using a PayPal account or credit card. A PayPal account is not required to checkout. Most major credit and bank cards accepted. The transaction will be listed as "PayPal - Penzar Devl" on your credit card statement.

If applicable, please enter your company name and your PO/ref. number in the checkout message box.


Products for Windows XP/Vista/7/8/10

TopSpice 8 ESD
Analog/digital mixed-mode circuit simulator electronic software distribution (ESD) download product.

This is a complete system with integrated schematic capture, mixed-mode SPICE simulator, graphical post-processor, and library of over 30,000 analog and digital parts. Single-user single-computer license. See full product description for system requirements. Download file size 170MB.
ESD product sale terms and conditions

Part no. TW686ES
Shipping weight: 0 (download instructions will be emailed)




US$595.00

TopSpice 8
Analog/digital mixed-mode circuit simulator CD packaged product.

This is a complete system with integrated schematic capture, mixed-mode SPICE simulator, graphical post-processor, library of over 30,000 analog and digital parts. Software is on CD-ROM. Single-user license. PC with built-in CD-ROM drive required. See full product description for all system requirements.
Product activation terms and conditions

Part no. TW686CD
Shipping weight: 0.5 lb. (0.25 Kg)




US$695.00

TopSpice 8 ESD 2 User
Analog/digital mixed-mode circuit simulator electronic software distribution (ESD) download product. 2 user/2 computer license. See full product description for system requirements. Download file size 170MB.
ESD product sale terms and conditions

Part no. TW686E2
Shipping weight: 0 (download instructions will be emailed)




US$995.00

TopSpice 8 ESD 3 User
Analog/digital mixed-mode circuit simulator electronic software distribution (ESD) download product. 3 user/3 computer license. See full product description for system requirements. Download file size 170MB.
ESD product sale terms and conditions

Part no. TW686E3
Shipping weight: 0 (download instructions will be emailed)




US$1,395.00


We ship the latest versions only. Part number on invoice may differ. Prices do not include delivery charges, taxes or customs duties. For packaged products, California customers must add 8.75% Sales Tax. Most online orders are processed within one business day (Monday thru Friday 8AM to 5PM Pacific time, excludes weekends and US holidays).


Update/Upgrade Products

Ordering Information and Terms


For questions regarding your order, please email us at:

Penzar Development Home



Penzar Development, PO Box 900847, Palmdale, CA 93590, USA