/> Markus Winkler, Langer EMV’s IC test engineer, commented: “According to our own assessment of immunity levels, the port pins of the RX62T are insensitive. The MCU reached the test limits without being disturbed.” The RX62T microcontroller has pushed the testing threshold limit. The outstanding EMC performance of Renesas Electronics’ MCUs helps reduce development costs, as the microcontroller no longer needs to be protected by a specific transient voltage surge suppressor or an expensive multilayer ceramic capacitor.

One of the most common sources of electrical noise in domestic white goods is inductive components, such as motors, induction rings or relays, through which a current is interrupted. The measurement system devised by Langer EMV enables comprehensive testing of the microcontroller’s response to Electric Fast Transient (burst) tests on each pin. The injected noise and voltage spikes / pulses reach 500V on the signal pins. Langer EMV has tested Renesas Electronics’ RX62T MCU, a member of the RX600 family, and the test results show the highest level of robustness for a microcontroller against spikes and fast transient.

Renesas Electronics Europe focuses on supplying microcontroller-based solutions for a wide range of applications within the digital home such as white goods, small appliances, utility, metering, in home displays, HVAC, security, healthcare and audio visual. Vincent Mignard, Renesas’ Marketing Engineer for White Goods and Motor Control, comments: “The electronic content of home appliances is continuing to grow and the environment in which they operate can be subject to a lot of electrical noise. Accordingly, white goods manufacturers are looking increasingly for MCUs that have robust protection against electro-magnetic interference (EMI). The Langer EMV burst tests confirm that the new Renesas RX600 microcontrollers are perfectly suited to such applications and are insensitive to external noise.”

Full details of the Langer test reports are available on request from Renesas.