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Switching power supplies are now even more popular than traditional linear power supplies, generally because they can offer higher efficiency than traditional linear power supplies. They can step-up, stepdown, and invert. Some designs can isolate output voltage from the input. The AN2031 application note from Maxim/Dallas outlines the different types of switching regulators used in [...]

Renesas Technology informed about plans to develop a next-generation CPU architecture for 16- and 32-bit microcontrollers. The new architecture will offer revolutionary enhancements over existing 16- and 32-bit CISC CPUs and is expected to achieve the best overall performance: the best code efficiency, processing performance, power consumption, and cost competitiveness. Products based on the new [...]

Maxim published new application note “Using the MAX7359 for Multifunctional and Gaming Keys on PDAs/Smartphones: A Programming Guide.” The MAX7359 is a special-purpose key-switch controller suitable for cell phones, printers, and other portable applications. It implements up to 64 keys and separate keypress and release codes are assigned for every key. Multiple keys can be [...]

The i.MX27 processor is newest Freescale product. Based on ARM® core technology and designed for use in smartphones, wireless PDAs, mobile entertainment and many other mobile wireless applications, Freescale’s i.MX family is engineered to offer smart speed—low power consumption with MHz performance to spare, and a high degree of integration to reduce a design time [...]

Maxim released new application note “SPI/I²C Bus Lines Control Multiple Peripherals”. This application note compares two common serial, digital interfaces: SPI™, and I²C and shows advantages or disadvantages for many designs, depending on criteria such like needed data rate, space availability, and noise considerations. This application note discusses the differences between these two serial interfaces [...]