NXP Semiconductors MCF51JM128EVLH

Overview

MCF51JM128EVLH from NXP Semiconductors (formerly Freescale) is a 32-bit ColdFire V1 microcontroller designed for embedded control applications requiring cryptographic acceleration, CAN bus connectivity, and USB On-The-Go functionality. It operates at up to 50.33 MHz, integrates 128 KB flash and 16 KB SRAM, features a hardware CAU/RNGA engine, and supports dual-role USB 2.0 full-speed operation in industrial temperature range (–40°C to +105°C) within a 64-pin LQFP package.

For engineers reviewing the MCF51JM128EVLH datasheet, MCF51JM128EVLH pinout, MCF51JM128EVLH application, or MCF51JM128EVLH equivalent, key selection criteria include its 64-pin LQFP footprint with 51 GPIOs, integrated MSCAN controller compliant with CAN 2.0A/B, 12-bit ADC with 12 channels, cryptographic acceleration for AES/SHA-1/DES, and USBOTG dual-role support with on-chip 3.3 V regulator and transceiver.

Technical Context

The MCF51JM128EVLH implements the ColdFire V1 core (ISA_C), delivering 0.76 Dhrystone MIPS/MHz from flash and supporting up to 30 peripheral interrupts. Its multipurpose clock generator (MCG) includes FLL/PLL circuitry for flexible clock synthesis from crystal or internal reference sources, enabling precise timing across run, wait, and stop3 power modes.

System-level integration includes two I²C modules (up to 100 kbps), dual SPI interfaces with double-buffered TX/RX, two SCIs with LIN support, eight-channel TPM with PWM/capture capability, RTC with external clock input, and carrier modulator timer (CMT) for infrared remote control output - all accessible via shared pin assignments validated for the 64-pin LQFP package.

Key Specifications

Pinout & Package

The MCF51JM128EVLH is housed in a 64-pin LQFP (10 mm × 10 mm) package with exposed pad thermal design. Pin assignments follow Table 4 of the Rev. 4 datasheet, where pins are shared across primary port functions (e.g., PTE0/TXD1), secondary peripherals (e.g., PTF0/TPM1CH2), and system signals (e.g., RESET, BKGD/MS). All 51 GPIOs are configurable with hysteresis, pull-up, slew rate, and drive strength control.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MCF51JM128VLH, the MCF51JM128EVLH adds hardware security acceleration without increasing pin count or power consumption; compared with K22FN512VLH12, it offers native CAN 2.0B support and lower gate count for legacy ColdFire codebases, but lacks ARM toolchain maturity and higher clock scalability.

Availability

MCF51JM128EVLH is available at Aetrix Electronics and suitable for industrial motor control, automotive body electronics, medical infusion pumps, and smart energy metering requiring stable component supply across extended temperature ranges and long product lifecycles.

Supply support for MCF51JM128EVLH 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 specializing in secure connectivity solutions for automotive, industrial, and IoT applications.

The MCF51JM128EVLH belongs to NXP's ColdFire microcontroller family, engineered for seamless migration from 8-bit MCUs (e.g., MC9S08JM60) to 32-bit architectures while delivering integrated security, mixed-signal peripherals, and robust real-time control in compact packages.

FAQ

What is the maximum operating frequency of the MCF51JM128EVLH?

The MCF51JM128EVLH operates at a maximum core frequency of 50.33 MHz across its full industrial temperature range (–40°C to +105°C) and supply voltage (2.7 V to 5.5 V). This frequency is achieved using the on-chip multipurpose clock generator (MCG) with PLL/FLL enabled, and performance is verified per Dhrystone 2.1 benchmark at 0.76 MIPS/MHz when executing from flash memory. The MCF51JM128EVLH maintains timing compliance under worst-case voltage and temperature conditions specified in Table 16 of the Rev. 4 datasheet.

Does the MCF51JM128EVLH support CAN 2.0B protocol?

Yes, the MCF51JM128EVLH integrates the MSCAN module, which fully supports Controller Area Network protocol versions 2.0A and 2.0B, including standard and extended frame formats. It provides five receive buffers with FIFO storage, three prioritized transmit buffers, programmable identifier filtering (2×32-bit, 4×16-bit, or 8×8-bit masks), and bus-off recovery. The MCF51JM128EVLH implements CAN physical layer signaling through dedicated RXCAN (PTC6) and TXCAN (PTF7) pins, requiring connection to an external CAN transceiver for bus interface.

How many ADC channels does the MCF51JM128EVLH have, and what is their resolution?

The MCF51JM128EVLH features a 12-bit successive approximation ADC with up to 12 input channels (ADP0–ADP11), as confirmed in Table 1 of the Rev. 4 datasheet and functional unit listing. Conversion results are right-justified and可 formatted in 12-, 10-, or 8-bit modes. The ADC supports single/conversion modes, asynchronous hardware triggers, automatic compare, and operation in Stop3 low-power mode. Input voltage range is referenced to VREFH/VREFL (typically VDDA/VSSA), and the module includes an internal temperature sensor for system monitoring.

What cryptographic algorithms are accelerated by the CAU in the MCF51JM128EVLH?

The Cryptographic Acceleration Unit (CAU) in the MCF51JM128EVLH provides hardware co-processing for DES, 3DES, AES (128/192/256-bit keys), MD5, and SHA-1 algorithms, as explicitly stated in Section 1.3.1 of the Rev. 4 datasheet. These accelerations reduce CPU overhead during secure boot, firmware authentication, and encrypted communication. The CAU operates independently of the ColdFire core and interfaces via memory-mapped registers, enabling deterministic execution times critical for real-time security operations in the MCF51JM128EVLH.

Is the MCF51JM128EVLH pin-compatible with other members of the MCF51JM family?

No, the MCF51JM128EVLH is not pin-compatible with other MCF51JM family variants across different packages. While the 64-pin LQFP variants (e.g., MCF51JM128VLH, MCF51JM64EVLH) share identical pinouts per Figure 3 and Table 4 of the Rev. 4 datasheet, the MCF51JM128EVLH differs from 80-pin LQFP and 44-pin LQFP versions in both pin count and signal mapping. For example, the 80-pin version exposes additional GPIOs (66 total), RGPIO lines (16), and peripheral signals (e.g., PTC7, PTH0–PTH4) absent in the 64-pin MCF51JM128EVLH. Migration requires PCB redesign.