Equipment manufacturers and designers are facing many new design challenges due to the continuing need for increased data security in many of today’s electronic systems. At the heart of the problem is the need to either implement security and antitamper countermeasures into a new application that never before required such mechanisms, or to avoid the introduction of new design variables into proven existing security circuitry. The challenges of maintaining size and cost competitiveness further complicate this critical design requirement. In order to meet these challenges, Maxim/Dallas Semiconductor has introduced a family of innovative devices designed to specifically address new and emerging security standards in a controlled and layered approach. The following describes how these new devices allow legacy designs to be enhanced with additional security, while minimizing the costs and risks of designing entirely new embedded security platforms.