NXP Semiconductors MCF51JM64EVLHR

Overview

MCF51JM64EVLHR from NXP Semiconductors (formerly Freescale) is a 32-bit ColdFire V1 microcontroller designed for industrial control and automotive body electronics. It integrates 64 KB flash, 16 KB SRAM, USB OTG, CAN 2.0B, cryptographic acceleration (CAU), RNGA, 12-bit ADC (8 channels), and dual SPI/SCI/I²C interfaces. Operates at up to 50.33 MHz across –40°C to +105°C in 64-pin LQFP.

For engineers reviewing the MCF51JM64EVLHR datasheet, MCF51JM64EVLHR pinout, MCF51JM64EVLHR application, or MCF51JM64EVLHR equivalent, key selection criteria include USB OTG dual-role support with integrated 3.3 V regulator, CAN bus timing compliance, CAU-accelerated AES/SHA-1 execution, and low-power Stop3 mode operation with RTC and ACMP active.

Technical Context

The MCF51JM64EVLHR implements the ColdFire V1 core (ISA_C), delivering 0.76 Dhrystone MIPS/MHz from flash and supporting 30 peripheral interrupts. Its multipurpose clock generator (MCG) includes FLL and PLL modes with internal reference trimming (0.2% resolution), enabling flexible clock sourcing from crystal (1–16 MHz), external oscillator, or internal RC.

System-level integration includes MSCAN with five receive buffers and programmable wakeup filtering, TPM modules offering eight PWM/capture channels, and rapid GPIO (16-bit) connected directly to the local 32-bit platform bus for sub-cycle I/O toggle. The device supports LIN via SCI break generation/detection and operates in Stop3 mode with ADC, ACMP, and RTC functional.

Key Specifications

Pinout & Package

64-pin LQFP (10 mm × 10 mm, 0.5 mm pitch), RoHS-compliant, thermally enhanced for industrial ambient operation.

Key Features

Applications

Equivalent & Alternatives

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

Compared with K22FN512VLH12 and MPC5604BVLQ6, the MCF51JM64EVLHR provides unique integration of USB OTG with regulator, CAN wakeup filtering, and FIPS-140-compliant CAU/RNGA - making it optimal for cost-sensitive, security-aware embedded nodes requiring dual-protocol connectivity without external components.

Availability

MCF51JM64EVLHR is available at Aetrix Electronics and suitable for automotive body electronics, industrial CAN gateways, secure IoT edge nodes, and medical sensor hubs requiring stable component supply across extended temperature ranges.

Supply support for MCF51JM64EVLHR 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.

The MCF51JM64EVLHR belongs to the ColdFire V1 microcontroller family, designed specifically for cost-optimized, mixed-signal control applications requiring integrated USB, CAN, crypto, and low-power operation in harsh environments.

FAQ

What is the maximum operating frequency of the MCF51JM64EVLHR?

The MCF51JM64EVLHR operates at a maximum core frequency of 50.33 MHz across its full voltage (2.7–5.5 V) and temperature (–40°C to +105°C) range. This frequency is achieved using the MCG's PLL mode with an external 8 MHz crystal, delivering deterministic real-time performance for motor control and protocol handling without overclocking.

Does the MCF51JM64EVLHR support USB device and host modes simultaneously?

Yes, the MCF51JM64EVLHR integrates a full-speed USB On-The-Go (OTG) controller that supports concurrent device and host functionality. It includes dedicated endpoint buffers, OTG protocol logic, and an on-chip 3.3 V regulator - enabling seamless role switching (e.g., acting as USB device when connected to PC, then as host when attaching flash drive) without external components.

What cryptographic algorithms are accelerated by the CAU in the MCF51JM64EVLHR?

The Cryptographic Acceleration Unit (CAU) in the MCF51JM64EVLHR accelerates DES, 3DES, AES (all key lengths), MD5, and SHA-1. These are implemented as co-processor instructions accessible via standard ColdFire assembly, reducing AES-128 encryption latency to under 1000 cycles - critical for secure boot validation and encrypted firmware updates in the MCF51JM64EVLHR.

How many CAN message buffers does the MCF51JM64EVLHR provide, and what is their configuration?

The MCF51JM64EVLHR features the MSCAN module with five receive buffers organized as a FIFO and three transmit buffers with internal priority arbitration. Each RX buffer supports programmable acceptance filtering (2×32-bit, 4×16-bit, or 8×8-bit masks), and TX buffers implement "local priority" scheduling - ensuring time-critical messages (e.g., brake commands) preempt lower-priority ones in the MCF51JM64EVLHR.

Can the MCF51JM64EVLHR operate in low-power modes while maintaining CAN bus wakeup capability?

Yes, the MCF51JM64EVLHR supports Stop3 mode with MSCAN enabled for wakeup. Its programmable low-pass filter on the CAN bus detects valid dominant pulses, and the five RX buffers retain messages during sleep. Upon wakeup, the MCF51JM64EVLHR resumes execution with received frames intact - enabling sub-10 µA standby current with responsive bus event handling.