NXP Semiconductors MCF51JM64VQH

Overview

MCF51JM64VQH from NXP Semiconductors (formerly Freescale) is a 32-bit ColdFire V1 microcontroller designed for embedded control applications requiring integrated USB OTG, CAN, cryptographic acceleration, and low-power operation. It features 64 KB flash, 16 KB SRAM, a 50.33 MHz core, 64-pin QFP package, and operates across –40°C to +105°C.

For engineers reviewing the MCF51JM64VQH datasheet, MCF51JM64VQH pinout, MCF51JM64VQH application, or MCF51JM64VQH equivalent, key selection criteria include USB On-The-Go dual-role support, MSCAN compliance with CAN 2.0A/B, CAU/RNGA security acceleration, 12-bit ADC with 8 channels, and rapid GPIO capability at CPU clock speed.

Technical Context

The MCF51JM64VQH 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 with internal reference trimming (0.2% resolution) and supports crystal oscillators from 31.25 kHz to 16 MHz.

System-level integration includes dual-role USB OTG with on-chip transceiver and 3.3 V regulator, MSCAN with five receive buffers and programmable wakeup filtering, and a cryptographic acceleration unit (CAU) supporting DES, 3DES, AES, MD5, and SHA-1 - all accessible via co-processor interface.

Key Specifications

Pinout & Package

Package: 64-pin QFP, 14 mm × 14 mm, 0.8 mm pitch, RoHS-compliant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with K22FN512VLH12 and MCF52259CAG80, the MCF51JM64VQH delivers verified FIPS-140 RNGA and CAU acceleration in a compact 64-pin QFP - making it optimal for cost-sensitive, security-aware industrial controls where pin count and crypto offload are critical.

Availability

MCF51JM64VQH is available at Aetrix Electronics and suitable for industrial motor control, automotive body electronics, secure IoT gateways, and medical infusion pumps requiring stable component supply and long-term lifecycle support.

Supply support for MCF51JM64VQH 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.

The MCF51JM64VQH belongs to NXP's ColdFire microcontroller family, designed specifically for cost-effective, secure, and low-power embedded control in harsh environments - bridging the gap between 8-bit MCUs and high-end application processors.

FAQ

What is the maximum operating frequency of the MCF51JM64VQH?

The MCF51JM64VQH 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, and is validated for Dhrystone 2.1 performance at 0.76 MIPS/MHz when executing from flash memory.

Does the MCF51JM64VQH include hardware cryptographic acceleration?

Yes, the MCF51JM64VQH includes a Cryptographic Acceleration Unit (CAU) supporting DES, 3DES, AES, MD5, and SHA-1 algorithms, plus a FIPS-140 compliant Random Number Generator Accelerator (RNGA). These units operate as co-processors, offloading compute-intensive operations from the ColdFire V1 core and enabling secure boot, encrypted communication, and key generation without software-only latency penalties.

What USB capabilities does the MCF51JM64VQH support?

The MCF51JM64VQH integrates a full-speed USB On-The-Go (OTG) dual-role controller compliant with USB 2.0 and 1.1 specifications. It supports device, host, and OTG roles with 16 bidirectional endpoints, double-buffered transfers, and an on-chip 3.3 V regulator (VUSB33) - eliminating the need for external USB PHY or voltage regulation components in MCF51JM64VQH-based designs.

How many analog-to-digital converter (ADC) channels does the MCF51JM64VQH have?

The MCF51JM64VQH features an integrated 12-bit ADC with 8 input channels. It supports single or continuous conversion modes, asynchronous hardware triggering, automatic compare functions, and operation in Stop3 low-power mode. The ADC includes an internal temperature sensor and accepts input ranges referenced to VREFH/VREFL, enabling direct sensor interfacing without external signal conditioning in MCF51JM64VQH applications.

Is the MCF51JM64VQH pin-compatible with other members of the MCF51JM family?

No, the MCF51JM64VQH is not pin-compatible with MCF51JM128 or MCF51JM32 variants in the same 64-pin QFP package - although they share identical pinouts, differences in flash size and feature enablement (e.g., CAU/RNGA presence) require firmware validation. Pin compatibility holds only within the same part number suffix group (e.g., MCF51JM64VQH ↔ MCF51JM64EVQH), not across memory variants.