MKM14Z128ACHH5R

MKM14Z128ACHH5R is a KM1x mainstream precision metrology microcontroller based on Arm® Cortex®-M0+. It enables single-chip one-, two-, and three-phase electricity meters, as well as flow meter and other precision measurement applications. It includes a powerful analogue front end. It provides security, including memory protection, tamper detection, and protection of supplier/user data. It supports high-precision internal voltage reference with low temperature drift. It features a comprehensive enablement suite including reference designs.

• 24bit sigma delta ADC with 94dB SNR
• Programmable gain amplifier with gains from 1 to 32 with low temperature drift
• High precision internal voltage reference with low temperature drift
• Tamper detection with time stamping, random number generator, memory protection unit
• High accuracy RTC +5ppm over temperature range, 4x UART, 2x SPI, 2x IIC
• 128KB program memory
• 16KB RAM memory
• 50MHz maximum operating frequency
• 44-pin LGA package
• Operating temperature range from -40 to +85°C