NXP Semiconductors MCF51JM64EVLH

Overview

MCF51JM64EVLH from NXP Semiconductors (formerly Freescale) is a 32-bit ColdFire V1 microcontroller with 64 KB flash, 16 KB SRAM, USB OTG dual-role controller, MSCAN interface, cryptographic acceleration unit (CAU), and random number generator accelerator (RNGA), operating up to 50.33 MHz at 2.7–5.5 V. It targets automotive body control modules, industrial HMI panels, and secure embedded gateways requiring CAN, USB, and hardware crypto.

For engineers reviewing the MCF51JM64EVLH datasheet, MCF51JM64EVLH pinout, MCF51JM64EVLH application, or MCF51JM64EVLH equivalent, key selection criteria include its 64-pin LQFP package, CAU/RNGA enablement, -40°C to +105°C temperature grade, integrated USB transceiver with on-chip 3.3 V regulator, and MSCAN compliance with ISO 11898-1.

Technical Context

The MCF51JM64EVLH 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) integrates FLL/PLL for frequency multiplication from crystal (1–16 MHz) or internal reference sources.

It embeds dual SPI, dual SCI, dual I²C, eight-channel TPM, RTC with 1 kHz low-power oscillator, CMT for infrared carrier generation, and 12-bit ADC with 12 input channels - all operational in Stop3 low-power mode. The background debug module (BDM) provides single-wire debugging.

Key Specifications

Pinout & Package

64-pin LQFP (10 mm × 10 mm), RoHS-compliant, with exposed thermal pad (not electrically connected). Pinout validated per Freescale Document MCF51JM128 Rev. 4, Figures 3 and Table 4.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MCF51JM64VLH, the MCF51JM64EVLH adds production-ready CAU/RNGA for secure boot and TLS offload; versus S9KEAZ128AMLH, it retains ColdFire ISA and BDM debug compatibility but lacks ARM ecosystem scalability.

Availability

MCF51JM64EVLH is available at Aetrix Electronics and suitable for automotive body control units, industrial HMI panels, and secure embedded gateways requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for MCF51JM64EVLH 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, formed from the spin-off of Philips' semiconductor division and later acquisition of Freescale.

The MCF51JM64EVLH belongs to the ColdFire V1 microcontroller product line, designed specifically for cost-sensitive, high-integration automotive and industrial applications requiring CAN, USB, hardware security, and extended temperature operation.

FAQ

What is the maximum operating frequency of the MCF51JM64EVLH?

The MCF51JM64EVLH operates at a maximum processor core speed of 50.33 MHz across its full 2.7 V to 5.5 V supply voltage range and –40°C to +105°C ambient temperature. This frequency is achievable using the multipurpose clock generator's PLL mode with an external crystal reference, and is validated for Dhrystone 2.1 performance at 0.76 MIPS per MHz when executing from flash memory.

Does the MCF51JM64EVLH include hardware cryptographic acceleration?

Yes, the MCF51JM64EVLH includes a Cryptographic Acceleration Unit (CAU) and Random Number Generator Accelerator (RNGA) enabled by default. The CAU supports DES, 3DES, AES, MD5, and SHA-1 algorithms in hardware, while the RNGA delivers FIPS-140-compliant 32-bit random numbers - both features confirmed in the Freescale orderable part number summary for MCF51JM64EVLH.

What USB functionality does the MCF51JM64EVLH support?

The MCF51JM64EVLH integrates a full-speed USB On-The-Go (OTG) dual-role controller with on-chip transceiver and 3.3 V regulator. It supports device mode (16 bidirectional endpoints, control/bulk/interrupt/isochronous transfers), host mode (control/bulk/interrupt transfers), and OTG protocol logic - enabling direct connection to PCs, peripherals, or other USB hosts without external PHY components.

Is the MCF51JM64EVLH pin-compatible with other members of the MCF51JM family?

Within the 64-pin LQFP variant group, the MCF51JM64EVLH shares identical pinout and footprint with MCF51JM64VLH, MCF51JM64EVQH, and MCF51JM64VQH. However, it is not pin-compatible with 80-pin or 44-pin variants due to differing pin counts and signal allocations - verified via Freescale's Pin Assignments Table 4 and mechanical drawings in Rev. 4 documentation.

What low-power modes are supported by the MCF51JM64EVLH?

The MCF51JM64EVLH supports two low-power stop modes plus wait mode, with Stop3 enabling selective peripheral retention: RTC, ADC, ACMP, CMT, and certain TPM channels remain active while CPU and most clocks halt. Peripheral clock gating via the SCGC register further reduces current draw, making it suitable for battery-backed or energy-harvested applications requiring periodic wake-up and sensing.