NXP Semiconductors MCF51JM32VLH

Overview

MCF51JM32VLH from NXP Semiconductors (formerly Freescale) is a 32-bit ColdFire V1 microcontroller designed for embedded control in automotive and industrial applications. It integrates 32 KB flash, 16 KB SRAM, a 50.33 MHz CPU core, USB OTG, CAN 2.0B, and cryptographic acceleration (CAU/RNGA). It operates across –40°C to +105°C in a 64-pin LQFP package.

For engineers reviewing the MCF51JM32VLH datasheet, MCF51JM32VLH pinout, MCF51JM32VLH application, or MCF51JM32VLH equivalent, key selection criteria include its dual-role USB OTG interface, MSCAN controller with FIFO buffers, 12-bit ADC with 12 channels, rapid GPIO capability, and support for low-power Stop3 mode with RTC wake-up.

Technical Context

The MCF51JM32VLH implements the ColdFire V1 ISA_C instruction set, delivering 0.76 Dhrystone MIPS/MHz when executing 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.

It embeds a full-speed USB OTG controller with 16 bidirectional endpoints, on-chip 3.3 V regulator, and pull-up resistors - eliminating external USB power components. The MSCAN module supports CAN 2.0A/B with five receive buffers, three prioritized transmit buffers, and programmable bus-off recovery.

Key Specifications

Pinout & Package

64-pin LQFP package (10 mm × 10 mm), RoHS-compliant, with 0.5 mm pitch. Pinout conforms to Figure 3 in MCF51JM128 Rev. 4 datasheet and Table 4 (Pin Assignments by Package).

Key Features

Applications

Equivalent & Alternatives

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

Compared with K22FN512VLH12, MCF51JM32VLH offers deterministic real-time behavior and integrated crypto acceleration at lower clock frequency; compared with MCF51JM64VLH, it provides identical functionality in a cost-optimized 32 KB flash variant for space-constrained firmware deployments.

Availability

MCF51JM32VLH is available at Aetrix Electronics and suitable for automotive body electronics, industrial PLC terminals, medical infusion pump controllers, and smart energy meter interfaces requiring stable component supply across extended temperature ranges.

Supply support for MCF51JM32VLH 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 company formed from the spin-off of Philips' semiconductor division, now specializing in secure connectivity solutions for automotive, industrial, and IoT markets.

The MCF51JM32VLH belongs to NXP's ColdFire microcontroller family, engineered for deterministic real-time control in harsh environments - emphasizing CAN/USB dual-interface flexibility, low-power operation, and hardware-accelerated security functions.

FAQ

What is the maximum operating frequency of the MCF51JM32VLH?

The MCF51JM32VLH 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 achievable using the MCG's PLL mode with an external crystal or internal reference source, and is validated per the electrical characteristics in Section 2 of the MCF51JM128 datasheet Rev. 4.

Does the MCF51JM32VLH include hardware cryptographic acceleration?

Yes, the MCF51JM32VLH includes a Cryptographic Acceleration Unit (CAU) and Random Number Generator Accelerator (RNGA). 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 are enabled in the VLH suffix variant per Table 3 of the MCF51JM128 datasheet.

Is the MCF51JM32VLH pin-compatible with other members of the MCF51JM family?

Yes, the MCF51JM32VLH shares identical pinout and package (64-pin LQFP) with MCF51JM64VLH and MCF51JM128VLH. All three variants maintain full signal, power, and debug pin compatibility - enabling scalable design reuse where flash size is the only differing parameter.

What USB capabilities does the MCF51JM32VLH support?

The MCF51JM32VLH integrates a full-speed USB On-The-Go (OTG) controller compliant with USB 1.1 and 2.0 specifications. It supports device, host, and OTG roles with 16 bidirectional endpoints, double buffering, and an on-chip 3.3 V regulator - eliminating need for external USB PHY or voltage regulation components.

How many analog-to-digital converter (ADC) channels does the MCF51JM32VLH have?

The MCF51JM32VLH features a 12-bit successive approximation register (SAR) ADC with up to 12 input channels. It supports single or continuous conversion modes, asynchronous hardware triggering, automatic compare function, and operation in Stop3 low-power mode - as confirmed in Table 1 (Device Comparison) and Section 1.3.1 of the MCF51JM128 datasheet Rev. 4.