NXP Semiconductors MKM33Z64CLL5R

Overview

MKM33Z64CLL5R from NXP Semiconductors (formerly Freescale) is a 50 MHz ARM Cortex-M0+ microcontroller optimized for smart metering and LCD-based industrial instrumentation. It integrates 64 KB flash, 16 KB RAM, dual 24-bit Sigma-Delta AFEs with PGA (up to 32× gain), 16-bit SAR ADC, segment LCD controller (36×8 or 40×4), and dual UARTs with ISO7816 support - enabling single-chip implementation of utility-grade energy meters with tamper detection and real-time clock calendaring.

For engineers reviewing the MKM33Z64CLL5R datasheet, MKM33Z64CLL5R pinout, MKM33Z64CLL5R application, or MKM33Z64CLL5R equivalent, key selection considerations include its 100-pin LQFP package, -40°C to +85°C industrial temperature range, dual AFE channel architecture, low-leakage VLLS0 stop mode (0.35 μA typical), and integrated hardware CRC and RNG for secure firmware updates and metrology data integrity.

Technical Context

The MKM33Z64CLL5R implements a dual-domain power architecture with independent digital (VDD) and analog (VDDA) supplies, supporting both high-precision metrology (2.7–3.6 V AFE operation) and ultra-low-power monitoring (1.71–3.6 V core-only operation). Its clock system combines a 1–32 MHz main crystal oscillator, 32 kHz RTC crystal input, and multi-purpose clock generator with MCG modes including FBE (full-bus enable) and BLPE (bypass low-power external).

System-level integration includes a 4-channel DMA controller servicing up to 64 request sources, Peripheral Crossbar for flexible signal routing, Memory Protection Unit (MPU) with multi-master protection, and robust watchdog with asynchronous wakeup unit - all coordinated through a unified low-power state machine supporting seven distinct power modes (RUN, WAIT, VLPR, VLPS, STOP, VLLS0–VLLS3) with sub-microsecond wake-up latency from VLPS.

Key Specifications

Pinout & Package

Package: 100-pin LQFP (14 mm × 14 mm, PP = LL per part number decoding), RoHS-compliant, moisture sensitivity level 3.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar metrology microcontroller applications.

Compared with MKM33Z64CLL5R, MKM33Z128CLL5 offers double flash capacity for complex firmware while maintaining identical metrology performance and packaging; MKE15Z64VLH5 reduces BOM cost by removing LCD and second AFE but sacrifices local display capability and dual-channel precision measurement.

Availability

MKM33Z64CLL5R is available at Aetrix Electronics and suitable for smart metering, industrial panel instrumentation, and battery-powered utility infrastructure requiring stable component supply across long product lifecycles.

Supply support for MKM33Z64CLL5R includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

NXP Semiconductors is a global semiconductor leader focused on secure connectivity solutions for automotive, industrial, and IoT markets, with deep expertise in metrology and embedded security.

The MKM33Z64CLL5R belongs to NXP's Kinetis KM series - a family specifically architected for utility metering applications, integrating high-precision analog front ends, LCD controllers, and low-power real-time processing in a single chip.

FAQ

What is the maximum operating frequency of the MKM33Z64CLL5R core?

The MKM33Z64CLL5R features an ARM Cortex-M0+ core rated for up to 50 MHz operation. This frequency is supported across the full industrial temperature range (-40°C to +85°C) and supply voltage range (2.7–3.6 V when AFE is active; 1.71–3.6 V otherwise), delivering 0.95 Dhrystone MIPS per MHz for deterministic metrology calculations.

Does the MKM33Z64CLL5R support hardware encryption or secure boot?

The MKM33Z64CLL5R does not include dedicated AES or SHA hardware accelerators. However, it provides a hardware random-number generator (RNG) and CRC-32 module - both essential for implementing secure boot verification, firmware signature checking, and key derivation in software. Its 128-bit unique chip ID further enables device-specific key binding.

What LCD configurations does the MKM33Z64CLL5R support?

The MKM33Z64CLL5R's integrated segment LCD controller supports two configurations: 36 frontplane lines × 8 backplane lines (288 segments) or 40 frontplane lines × 4 backplane lines (320 segments). It includes internal charge pump, contrast control, blinking logic, and software-configurable duty/clock division - eliminating need for external LCD driver ICs in utility meter designs.

How many analog measurement channels does the MKM33Z64CLL5R provide?

The MKM33Z64CLL5R integrates two independent 24-bit Sigma-Delta AFE modules (AFE0 and AFE1), each with two differential input channels and programmable gain amplifier (PGA) up to 32×. Additionally, it includes a separate 16-bit SAR ADC with 16 single-ended inputs - providing three distinct analog acquisition paths for simultaneous voltage, current, and auxiliary sensor measurements.

What is the lowest power consumption mode of the MKM33Z64CLL5R?

The MKM33Z64CLL5R achieves its lowest active power state in Very Low-Leakage Stop Mode 0 (VLLS0), drawing just 0.35 μA typical (at 25°C, 3.0 V, POR disabled) while retaining RTC operation, tamper flags, and 128 bytes of RAM. This mode enables decade-long battery backup for calendar-critical metering functions without external supervision.