Custom Silicon Solutions, Inc. Newsletter
CSS Logo
January/February 2010
In This Issue
Typical CSS555 Applications - The Need for Low Power and Programmability
Golden Mousetrap Design Awards 

CSS555C Timer Chip - 2009 Best Product Finalist! 

Customers for our CSS555 family of IC Timers have provided feedback to how they are using this product.  Not too surprising is that most of the users have a need for the low power capability of the device. 
The CSS555 operates at a current of less the 5 micro-amps, making it an excellent Timer in battery powered products.  For example, the CSS555 would operate for over 5 years in a battery powered product (2 AAA batteries, 100K-ohm load, 50% duty cycle). 
In addition to low power, the CSS555 has programmable delay times.  This is a very important feature for many customers.   The CSS555 contains a 6 decade counter, which can be programmed to provide very long delay times without the need for a large timing capacitor.  The CSS555C even contains an internal capacitor, eliminating the need for an external capacitor entirely.  For example, the CSS55C can be programmed for a delay time of one hour without an external timing capacitor.  Much longer delays can be achieved with a reasonably sized external capacitor - a month of delay is possible by adding a 0.1 micro-farad capacitor!
With all these advanced features, a complete 30 minute timer requires only two external resistors and the entire circuit requires less than 40 square millimeters of space on a PC card.
To best appreciate and experiment with the capabilities of the CSS555, we have found it best that customers use our CSS555 Demo Kit.  This kit allows for very easy programming and operation of the CSS555.  The kit comes with an easy interface to your PC and complete instructions.  For a short time, CSS is offering this kit free to qualified applicants.  Please refer to the promotion at the bottom of this page.
For more information, contact Pat Fitzpatrick: Phone (949) 743-0062 or Email:
Pat Fitzpatrick or visit Custom Silicon Solutions.
Custom Silicon Solutions Memberships & Certifications:

CSS Memberships:

  • Global Semiconductor Alliance (GSA)
  • IEEE
  • Bruin Professionals   

CSS Certifications:

  • ISO 9001:2008 Certified
  • ITAR Compliant: Registration Code M24941
  • Central Contractor Registered (CCR): CAGE Code 5F3G6

Welcome to the January/February edition of the CSS Newsletter.  We hope you find these articles informative and helpful in your work.

Custom Silicon Solutions (CSS) provides a true Turn-Key Solution to meet your Mixed Signal ASIC needs - from Development through Production.  Our mission is to develop an ASIC that meets your requirement at the lowest possible price and with a minimum of assistance from your technical staff.  Please visit us at for more information or send an inquiry to
Keith Shelton
 "Continued Customer Support"
A Fundamental Requirement for ASIC Vendors

CSS - A Top Rated ASIC Vendor

Many of our customers have very long-term program lifetimes.  We have experienced program lifetimes over 20 years - from initial design of the ASIC through high volume production to the decline of sales prior to development of a replacement product.  ASIC development requires our commitment to provide the product to the customer from beginning to end.  This may require changes in the silicon fabrication process as technology evolves, changes in the package (such "green" packages), and it certainly involves our product engineers continuously monitoring the entire production process to assure that yield and quality is maintained.
We just renewed an annual agreement for continued production of an ASIC with a customer we have worked with for many years.  We have been producing this ASIC in millions annually for over three years and plan to continue production for the lifetime of our customer's product.  We have experience with other long term customers, where the annual volumes are volatile and change with market conditions. We fully supported these changing requirements.  Long-term commitment to customer support is essential for a successful ASIC company and CSS is in business to provide that kind of service.   
CSS would be pleased to quote an ASIC to meet your needs.  We specialize in Mixed-Signal ASICs for Instrumentation and Control electronics in the Military, Industrial and Medical markets.  We develop ASICs in both CMOS and BiCMOS processes.  We also have many years of experience in the development and application of non-volatile memory (EEPROM), which can be used to optimize the performance of your mixed-signal ASIC.  Please give us a call at 949-289-9056 or email us at for more information.

"Itron has been very pleased with the design, project management, and implementation of the custom ASICs that CSS has developed for us. CSS is a preferred supplier and a source we look to on new designs. Further, they have done an excellent job of supporting ongoing production."
Kent DeLong
Strategic Purchasing Manager

 CSS Logo 

Visit us at  

or call us at
(949) 289-9056 

Quick Links
FREE CSS555 Demo Kit Offer
Tell us about your application for the CSS555 Timer and we will send you a free CSS555 Demo Kit, including CSS555 & CSS555C samples to the first 100 qualified applicants.  Just request our "Free Demo Kit Application Form" in an email to: or Call (949)797-9220 and ask for Pat.
CSS555C Demo Kit PC Card from Custom Silicon Solutions
The Demo Kit is all you need to operate the CSS555 IC - a micro-power, programmable version of the popular 555 Timer IC.
Mention Promotion Code:  FJB03
This offer will expire February 28, 2010