NXP Semiconductors MCF51JM64EVLK

Overview

MCF51JM64EVLK from NXP Semiconductors (formerly Freescale) is a 32-bit ColdFire V1 microcontroller designed for embedded control in automotive and industrial applications. It integrates 64 KB flash, 16 KB SRAM, USB OTG, CAN 2.0B, cryptographic acceleration (CAU), and RNGA, operating up to 50.33 MHz at 2.7–5.5 V. It serves as a high-performance upgrade path from MC9S08JM60 8-bit MCUs in body control modules and motor control systems.

For engineers reviewing the MCF51JM64EVLK datasheet, MCF51JM64EVLK pinout, MCF51JM64EVLK application, or MCF51JM64EVLK equivalent, key selection criteria include its 80-pin LQFP package, –40°C to +105°C temperature grade, CAU/RNGA enablement, USB OTG dual-role capability, and CAN interface timing compliance with ISO 11898-1.

Technical Context

The MCF51JM64EVLK implements the ColdFire V1 core (ISA_C), supporting up to 30 peripheral interrupts and delivering 0.76 Dhrystone MIPS/MHz from flash. Its multipurpose clock generator (MCG) includes FLL/PLL modes with internal reference trimming (0.2% resolution), enabling flexible clock synthesis from crystal (1–16 MHz) or low-frequency (31.25 kHz–38.4 kHz) sources.

System-level integration includes dual SCI interfaces supporting LIN master/slave break generation, two SPI modules with double-buffered TX/RX, and a 12-bit ADC with 12-channel input multiplexing, automatic compare, and Stop3-mode operation. The MSCAN module provides five receive buffers, three prioritized transmit buffers, and programmable wakeup with integrated low-pass filtering.

Key Specifications

Pinout & Package

Package: 80-pin LQFP, 14 mm × 14 mm, 0.5 mm pitch, RoHS-compliant, rated for –40°C to +105°C ambient operation.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MCF51JM64VLK, the MCF51JM64EVLK adds production-ready CAU/RNGA for secure firmware signing and key generation; compared with S9KEAZ128AMLH, it delivers integrated CAN 2.0B and USB OTG - eliminating external interface ICs and reducing PCB layer count.

Availability

MCF51JM64EVLK is available at Aetrix Electronics and suitable for automotive body electronics, industrial motor drives, and medical infusion pumps requiring stable component supply across extended temperature ranges and long product lifecycles.

Supply support for MCF51JM64EVLK 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 acquired Freescale in 2015 and continues development of the ColdFire portfolio for legacy-secure, high-integration embedded control applications.

The MCF51JM64EVLK belongs to the ColdFire JM series - engineered for automotive-grade reliability, cryptographic readiness, and seamless migration from 8-bit S08 platforms in body control and powertrain subsystems.

FAQ

What is the maximum operating frequency of the MCF51JM64EVLK?

The MCF51JM64EVLK operates at a maximum core frequency of 50.33 MHz across its full voltage range (2.7 V to 5.5 V) and temperature range (–40°C to +105°C). This frequency is achievable using the MCG's PLL mode with an external 8 MHz crystal, and is validated for Dhrystone 2.1 benchmark performance at 0.76 MIPS/MHz when executing from flash memory. The MCF51JM64EVLK maintains timing compliance under worst-case process/voltage/temperature corners.

Does the MCF51JM64EVLK support CAN FD or only classical CAN?

The MCF51JM64EVLK implements the MSCAN module compliant exclusively with CAN 2.0A/B (classical CAN) at up to 1 Mbps. It does not support CAN FD features such as variable bit rate, extended data length (up to 64 bytes), or CRC enhancements. Its MSCAN peripheral includes five receive buffers with FIFO, three prioritized transmit buffers, and programmable wakeup filtering - all aligned with ISO 11898-1 for classical CAN networks.

How is cryptographic functionality implemented in the MCF51JM64EVLK?

The MCF51JM64EVLK integrates a dedicated Cryptographic Acceleration Unit (CAU) that offloads DES, 3DES, AES, MD5, and SHA-1 operations from the ColdFire CPU. It also includes a FIPS-140-compliant Random Number Generator Accelerator (RNGA) producing true 32-bit random values. Both CAU and RNGA are enabled in the MCF51JM64EVLK variant - confirmed by Freescale's orderable part number suffix "E" - and accessible via memory-mapped registers without requiring external security ICs.

What USB roles does the MCF51JM64EVLK support, and what external components are required?

The MCF51JM64EVLK supports full-speed USB On-The-Go (OTG) dual-role operation - functioning as either a USB device or host. It includes an on-chip USB transceiver, 3.3 V regulator, and pull-up resistors, eliminating the need for external PHY, LDO, or discrete pull-ups. Only a standard USB Type-A or Mini-B connector, ESD protection diodes, and proper 90 Ω differential impedance routing are required for compliance with USB 2.0 specifications.

Is the MCF51JM64EVLK pin-compatible with other members of the MCF51JM family?

The MCF51JM64EVLK is pin-compatible with the MCF51JM128EVLK and MCF51JM32EVLK within the 80-pin LQFP package variant, sharing identical pin assignments, electrical characteristics, and thermal profiles. However, flash size differences (64 KB vs. 128 KB vs. 32 KB) do not affect pinout or signal behavior - allowing drop-in replacement in designs where code footprint permits. Pin compatibility does not extend to 64-pin or 44-pin variants due to differing pin counts and I/O allocations.