NXP Semiconductors MCF51JM128VQH

Overview

MCF51JM128VQH from NXP Semiconductors (formerly Freescale) is a 32-bit ColdFire V1 microcontroller designed for industrial control and embedded connectivity applications. It integrates 128 KB flash, 16 KB SRAM, USB OTG dual-role controller, CAN 2.0B interface, cryptographic acceleration unit (CAU), and 12-bit ADC with 12 channels - enabling secure, real-time communication in automotive body electronics and smart sensor nodes.

For engineers reviewing the MCF51JM128VQH datasheet, MCF51JM128VQH pinout, MCF51JM128VQH application, or MCF51JM128VQH equivalent, key selection criteria include its 64-pin QFP package, –40°C to +105°C operating range, CAU-enabled security features, USB OTG host/device capability, and CAN bus integration for deterministic networked control.

Technical Context

The MCF51JM128VQH implements the ColdFire V1 core with ISA_C instruction set, delivering 0.76 Dhrystone MIPS/MHz from flash at up to 50.33 MHz. Its system architecture includes a multipurpose clock generator (MCG) with FLL/PLL, background debug module (BDM) on BKGD/MS pin, and integrated voltage regulator (VREG) supporting 2.7–5.5 V operation.

Peripheral integration centers on dual-role USB OTG with on-chip transceiver and 3.3 V regulator, MSCAN controller with five receive buffers and programmable wakeup, and two independent SPI modules with double-buffered TX/RX and configurable polarity/phase - all accessible via shared pin assignments validated for the 64-pin QFP footprint.

Key Specifications

Pinout & Package

Package: 64-pin QFP, 14 mm × 14 mm, 0.8 mm pitch, RoHS-compliant. Thermal pad optional per mechanical drawings.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MCF51JM128VLH, the MCF51JM128VQH provides identical functionality in a QFP package suited for prototyping and manual soldering, while the K22FN512VLH12 offers modern ARM architecture with larger memory and enhanced DSP capabilities - making it suitable for next-generation applications demanding scalability beyond ColdFire's 50 MHz ceiling.

Availability

MCF51JM128VQH is available at Aetrix Electronics and suitable for industrial motor control, automotive body electronics, secure IoT edge nodes, and medical sensor hubs requiring stable component supply across extended temperature ranges and long product lifecycles.

Supply support for MCF51JM128VQH 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 MCF51JM128VQH belongs to NXP's ColdFire microcontroller family, engineered for seamless migration from 8-bit MC9S08JM60 designs and optimized for deterministic real-time control with integrated security and mixed-signal peripherals.

FAQ

What is the maximum operating frequency of the MCF51JM128VQH?

The MCF51JM128VQH operates at a maximum core frequency of 50.33 MHz across its full industrial temperature range (–40°C to +105°C) and supply voltage range (2.7 V to 5.5 V). This frequency is achieved using the on-chip multipurpose clock generator (MCG) with PLL enabled, and performance is validated per Dhrystone 2.1 benchmarks at 0.76 MIPS/MHz when executing from flash memory. The MCF51JM128VQH maintains timing compliance under worst-case voltage and temperature conditions specified in Table 16 of the datasheet.

Does the MCF51JM128VQH include hardware cryptographic acceleration?

Yes, the MCF51JM128VQH includes a dedicated Cryptographic Acceleration Unit (CAU) that offloads DES, 3DES, AES, MD5, and SHA-1 operations from the ColdFire V1 core. It also integrates a FIPS-140-compliant Random Number Generator Accelerator (RNGA) providing true 32-bit random values. These units are enabled in the MCF51JM128VQH variant per Table 3 of the datasheet, distinguishing it from non-CAU versions like MCF51JM128VLH - though both share identical pinout and package.

What USB modes does the MCF51JM128VQH support?

The MCF51JM128VQH supports full-speed USB On-The-Go (OTG) dual-role operation, functioning as either a USB device (compliant with USB 2.0/1.1) or a USB host. As a device, it provides 16 bidirectional endpoints with double buffering; as a host, it supports control, bulk, interrupt, and isochronous transfers. The MCF51JM128VQH integrates an on-chip USB transceiver, 3.3 V regulator (VUSB33), and pull-up resistors - eliminating need for external USB PHY components.

Which package type is used by the MCF51JM128VQH?

The MCF51JM128VQH uses a 64-pin Quad Flat Package (QFP) with 14 mm × 14 mm body size and 0.8 mm lead pitch. This package is mechanically distinct from the 64-pin LQFP variant (MCF51JM128VLH) and shares pin assignments per Figure 3 and Table 4 of the datasheet. The QFP's gull-wing leads support both automated placement and hand-soldering, making it suitable for evaluation and low-volume production where thermal pad attachment is not required.

How many analog input channels does the MCF51JM128VQH ADC support?

The MCF51JM128VQH integrates a 12-bit successive approximation register (SAR) analog-to-digital converter with up to 12 input channels (ADP0–ADP11), as confirmed in Table 1 and Section 2.8 of the datasheet. Channel mapping is distributed across Ports B, D, and J, and the ADC supports right-justified 12-/10-/8-bit output formats, asynchronous hardware triggering, and operation in Stop3 low-power mode - enabling continuous sensor monitoring without CPU intervention.