NXP MKM33Z64ACLH5

Enabling high accuracy, secure 1-, 2- and 3-phase electricity metering solutions through a powerful analog front end (AFE), auto-compensated iRTC with hardware tamper detection, segment LCD controller, rich security protection and multiple low power features in a 32-bit Arm Cortex-M0+ MCU.

• Enabling single-chip 1-, 2- and 3-phase metering designs
• AFE, Security and HMI. Single crystal implementation
• Single point of calibration during manufacture
• Highest accuracy metrology with regional feature support
• Multiple ΣΔ ADCs with PGA
• Supports neutral disconnect use case
• Compliance with WELMEC/OIML recommendations
• Memory and peripheral protection
• Hardware tamper detect with time stamping
• Low-power RTC, battery backup with tamper memory
• Arm Cortex M0+ core up to 75 MHz
• Metering specific Memory Mapped Arithmetic Unit (MMAU)
• 75 MHz high-accuracy internal reference clock
• 32 kHz, and 4 MHz internal reference clock
• 1 kHz LPO clock
• 32.768 kHz crystal oscillator in iRTC power domain
• 1 MHz to 32 MHz crystal oscillator
• FLL and PLL
• Memory Protection Unit (MPU)
• 4-channel DMA controller
• Watchdog and EWM
• Low-leakage Wakeup Unit (LLWU)
• SWD debug interface and Micro Trace Buffer (MTB)
• Bit Manipulation Engine (BME)
• Inter-peripheral Crossbar Switch (XBAR)
• 4 AFE channels (4×24-bit ΣΔ ADCs with PGA)
• 16-channel 16-bit SAR ADC with 4 result registers
• High-speed analog comparator containing a 6-bit DAC and programmable reference input
• Internal 1.2 V reference voltage 10 - 15 ppm/℃
• Up to 512 KB program flash memory
• Up to 64 KB SRAM
• Voltage range: 1.71 to 3.6 V (without AFE)
• Voltage range: 2.7 to 3.6 V (with AFE)
• Temperature range (ambient): -40 to 105 ℃
• 13 power modes to provide power optimization based on application requirements
• 8.82 mA @ 75 MHz run current
• Less than 220 μA very low power run current
• 6.05 μA very low power stop current
• Down to 261 nA deep sleep current
• VBAT domain current <1 μA with iRTC operational
• Low-power boot with less than 2.33 mA peak current
• 16-bit SPI modules
• Low-power UART module
• UART module complying with ISO7816-3
• Basic UART module
• I²C with SMBus
• Quad Timer (QTMR)
• Periodic Interrupt Timer (PIT)
• Low Power Timer (LPTMR)
• Programmable Delay Block (PDB)
• Independent Real Time Clock (iRTC)
• Up to 4×60 (8×56, 6×58) segment LCD controller operating in all low-power modes
• General purpose input/output (GPIO)
• Memory Mapped Cryptographic Acceleration Unit (MMCAU) for AES encryption
• Random Number Generator (RNGA), complying with NIST: SP800-90
• Programmable Cyclic Redundancy Check (PCRC)
• 80-bit unique identification number per chip

• Single-phase, 2-phase, and 3-phase energy metering product development and design