MKM33Z128CLH5

Kinetis M series MCUs are based on the 32-bit ARM Cortex -M0+ core and provide a low-cost, highly integrated solution for one-, two- and three-phase electricity meters that require powerful 32-bit processing capability, precision analog, security, and HMI functionality. Each MCU includes a powerful analog front end that is configurable for different regions, enabling power calculations with 0.1 percent accuracy. A high-accuracy, real-time clock delivers less than 5 PPM drift over temperature. Metrology firmware for calculating active, reactive and apparent power using a variety of algorithms is provided free of charge by Freescale. Pre-certified reference designs for Europe, China, India, the U.S. and Japan are available for customer evaluation.

• High-performance ultra-low-power ARM Cortex-M0+ core
• 24-bit sigma-delta ADC and PGA achieving 94 dB SNR
• High accuracy RTC with +5 PPM over temperature
• Rich set of security: MPU, active tamper, RNG for Welmec compliant meters
• Pre-certified metrology software