NXP Semiconductors MCF51JM64VLD

Overview

MCF51JM64VLD from NXP Semiconductors (formerly Freescale) is a 32-bit ColdFire V1 microcontroller designed for embedded control in space-constrained industrial and automotive applications. It integrates 64 KB flash, 16 KB SRAM, USB OTG, CAN 2.0B, 12-bit ADC (8 channels), cryptographic acceleration (CAU), and operates at up to 50.33 MHz across –40°C to +105°C. It serves as a drop-in upgrade path from MC9S08JM60 8-bit MCUs.

For engineers reviewing the MCF51JM64VLD datasheet, MCF51JM64VLD pinout, MCF51JM64VLD application, or MCF51JM64VLD equivalent, key selection criteria include its 44-pin LQFP package, integrated USB OTG dual-role controller with on-chip 3.3 V regulator, MSCAN interface with five receive buffers and programmable wakeup, CAU support for AES/SHA-1, and operation in Stop3 low-power mode with RTC and ADC active.

Technical Context

The MCF51JM64VLD 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 and PLL for frequency synthesis from crystal (1–16 MHz) or internal reference sources.

System-level integration includes dual I²C modules (100 kbps), two SCIs with LIN support, two SPIs with double-buffered TX/RX, TPM1/TPM2 timers (6+2 channels), and rapid GPIO (16-bit) connected directly to the local 32-bit bus for CPU-clock-speed toggling and atomic set/clear operations.

Key Specifications

Pinout & Package

44-pin LQFP (10 mm × 10 mm), RoHS-compliant, thermally enhanced with exposed pad (per Freescale MCF51JM128 Rev. 4 mechanical drawings).

Key Features

Applications

Equivalent & Alternatives

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

Compared with Kinetis K22FN512VLH12 and MCF52259CAG80, the MCF51JM64VLD provides unique value in compact 44-pin form factor, integrated USB OTG with regulator, and hardware CAU/RNGA-making it optimal for cost-sensitive, security-aware, space-constrained industrial nodes where ColdFire toolchain continuity matters.

Availability

MCF51JM64VLD is available at Aetrix Electronics and suitable for industrial motor control, automotive body electronics, medical infusion systems, and smart energy metering requiring stable component supply across extended temperature ranges and long product lifecycles.

Supply support for MCF51JM64VLD 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 applications.

The MCF51JM64VLD belongs to NXP's ColdFire microcontroller family, designed specifically to bridge 8-bit MCU limitations with 32-bit performance, integrated analog peripherals, and robust communication interfaces for cost-sensitive embedded control.

FAQ

What is the maximum operating frequency of the MCF51JM64VLD?

The MCF51JM64VLD operates at a maximum core frequency of 50.33 MHz across its full –40°C to +105°C temperature range and 2.7 V to 5.5 V supply voltage. This speed is achievable using the MCG's PLL mode with an external 8 MHz crystal, delivering consistent Dhrystone performance of 0.76 MIPS per MHz when executing from flash memory.

Does the MCF51JM64VLD support USB device and host functionality simultaneously?

Yes, the MCF51JM64VLD integrates a full-speed USB On-The-Go (OTG) dual-role controller that supports both device and host modes. It includes on-chip transceiver, 3.3 V regulator, and pull-up resistors, enabling seamless role switching under software control without external components. The MCF51JM64VLD implements OTG protocol logic and supports control, bulk, interrupt, and isochronous transfers in either mode.

How many analog input channels does the MCF51JM64VLD ADC support?

The MCF51JM64VLD features a 12-bit successive-approximation ADC with 8 dedicated analog input channels (ADP0–ADP7). These channels support single-shot or continuous conversion, asynchronous hardware triggering, and automatic compare functions. The ADC remains operational in Stop3 low-power mode, enabling periodic sensor sampling without waking the CPU.

What security features are implemented in hardware on the MCF51JM64VLD?

The MCF51JM64VLD includes two dedicated hardware security blocks: the Cryptographic Acceleration Unit (CAU) supporting DES, 3DES, AES, MD5, and SHA-1; and the Random Number Generator Accelerator (RNGA), a FIPS-140-compliant 32-bit true random number generator. These units operate independently of the CPU, offloading cryptographic operations and ensuring entropy quality for secure boot and firmware updates.

Is the MCF51JM64VLD pin-compatible with other members of the MCF51JM family?

No, the MCF51JM64VLD is not pin-compatible with other MCF51JM variants. It uses a 44-pin LQFP package, whereas MCF51JM64VLK and MCF51JM64VQH use 80-pin LQFP and 64-pin QFP packages respectively. Pin assignments differ significantly across packages-even shared pin numbers map to different peripheral functions (e.g., PTC2 is IRO in 44-pin but reserved in 64-pin). Migration requires PCB redesign.