Overview
●Kinetis® KM3x MCUs enable single-chip one-, two-, and three-phase electricity meters, as well as flow meters and other precision measurement applications.
● Provides security with active and passive tamper detection with time stamping
● Supports high-precision internal voltage reference with low temperature drift
● Features a comprehensive enablement suite including reference designs
●MoreLess
●## Features
●### MCU
● High-performance Arm® Cortex®-M0 core, up to 75 MHz of core clock frequency
● 256 KB/128 KB/64 KB single array flash
● Supports v6-M Instruction Set Architecture (ISA) including all 16-bit v7-M instructions plus a number of 32-bit thumb-2 instructions
● PLL to generate clocks for AFE
● Input range: 31.25 kHz to 39.0625 kHz
● Output range: 11.72 MHz to 14.65 MHz
● FLL to generate core, system and flash clocks
● Input range: 31.25 kHz to 39.0625 kHz
● Output Range: 20 MHz to 50 MHz
● Flexible modes of operation
● Two internal trim-able clock references
● 32 kHz
● 4 MHz
●### Analog Front End
● 24-bit sigma delta ADC with 94 dB SNR
● Programmable gain amplifier with gains from 1 to 32 with low temperature drift
● High precision internal voltage reference with low temperature drift
●### Security
● Tamper detection with time stamping
● Random number generator, memory protection unit
● Memory Mapped Cryptographic Acceleration Unit (MMCAU) for AES Encryption
● Cyclic Redundancy Check (CRC)
●### Interfaces
● Voltage range 1.71 volts - 3.6 volts (without AFE)
● Voltage range 2.7 volts - 3.6 volts (with AFE)
● Temperature range -40°C to 105°C
