NXP Semiconductors MCF51JF128VLH

Overview

MCF51JF128VLH from NXP Semiconductors (formerly Freescale) is a ColdFire V1-based 32-bit microcontroller with 128 KB on-chip flash, integrated USB OTG controller, 12-bit ADC/DAC, and hardware cryptographic acceleration. It operates from 1.71 V to 3.6 V across –40°C to 105°C and delivers 0.99 DMIPS/MHz from flash at up to 50 MHz core frequency - used in industrial control nodes requiring secure, low-power edge processing.

For engineers reviewing the MCF51JF128VLH datasheet, MCF51JF128VLH pinout, MCF51JF128VLH application, or MCF51JF128VLH equivalent, key selection criteria include its 64-pin LQFP package, 10 low-power modes including VLLS3 (1.8 μA @ –40°C), integrated CAU for AES/SHA acceleration, and dual crystal oscillator support (1 kHz–32 MHz) enabling robust timing in harsh environments.

Technical Context

The MCF51JF128VLH implements the ColdFire V1 CPU core with Harvard architecture, supporting FEI/FBE/BLPE clock modes via its Multipurpose Clock Generator (MCG). Its memory subsystem includes FlexNVM (for EEPROM emulation), FlexRAM, and 32 KB SRAM - all accessible without external bus logic.

Peripherals are tightly coupled: the PDB synchronizes FTM timers for motor control; the LLWU enables wake-from-VLLS3 on analog comparator or TSI events; and the USB OTG controller integrates transceiver, PHY, and VREG - eliminating external components for battery-powered host/peripheral operation.

Key Specifications

Pinout & Package

Package: 64-pin LQFP (10 mm × 10 mm, 0.5 mm pitch), RoHS-compliant, moisture sensitivity level 3.

Key Features

Applications

Equivalent & Alternatives

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

Compared with K22FN512VLH12 and RA4M1AFB20, the MCF51JF128VLH uniquely combines ColdFire deterministic timing, on-die USB transceiver, and hardware CAU in a 64-pin LQFP - making it optimal for cost-sensitive, security-critical, battery-operated edge controllers where minimal BOM count and fast secure boot are mandatory.

Availability

MCF51JF128VLH is available at Aetrix Electronics and suitable for industrial sensor nodes, medical wearables, automotive body control modules, and smart home thermostats requiring stable component supply across extended temperature ranges and long product lifecycles.

Supply support for MCF51JF128VLH 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, with roots in Freescale's embedded MCU heritage.

The MCF51JF128VLH belongs to the ColdFire V1 microcontroller family, designed specifically for cost-optimized, low-power industrial control and secure edge-node applications where deterministic real-time performance and integrated analog/USB functionality reduce system complexity.

FAQ

What is the maximum operating frequency of the MCF51JF128VLH core?

The MCF51JF128VLH features a ColdFire V1 CPU core rated for up to 50 MHz operation. This frequency is achievable across the full –40°C to 105°C ambient temperature range when supplied with 1.71 V to 3.6 V. At 50 MHz, the MCF51JF128VLH delivers 0.99 DMIPS per MHz when executing from flash memory, confirmed in the official Freescale datasheet Rev. 7 (03/2015). The MCG clock generator supports multiple modes (FEI, FBE, BLPE) to optimize performance versus power consumption.

Does the MCF51JF128VLH include an integrated USB transceiver?

Yes, the MCF51JF128VLH integrates a full-speed/low-speed USB On-The-Go controller with an on-chip transceiver and dedicated USB voltage regulator (VREG). This eliminates the need for external PHY components, reducing BOM count and PCB area. The USB_DP and USB_DM pins are directly routed to the internal transceiver, supporting plug-and-play connectivity in medical wearables and industrial configuration tools without additional level-shifting or termination circuitry - a verified feature documented in Section 6.8 of the MCF51JF128 datasheet.

What low-power modes does the MCF51JF128VLH support, and what is the lowest current draw?

The MCF51JF128VLH supports 10 distinct low-power modes, including VLLS1, VLLS2, VLLS3, LLS, VLPS, and STOP. The deepest mode is VLLS3, which draws just 1.8 μA at –40°C and 3.3 μA at 105°C (at 3.0 V supply), as measured in Table 5 of the datasheet. VLLS3 retains RAM and selected registers while disabling all clocks except the LLWU, enabling wake-up via analog comparator, TSI, or GPIO - ideal for multi-year battery operation in remote sensors using the MCF51JF128VLH.

Is there hardware cryptographic acceleration in the MCF51JF128VLH?

Yes, the MCF51JF128VLH includes a dedicated Cryptographic Acceleration Unit (CAU) that offloads AES-128/256 encryption/decryption, SHA-1/256 hashing, and CRC-32 calculations from the CPU. This hardware block reduces cryptographic operation latency by over 90% compared to software-only implementations and is explicitly listed in the "Security and integrity" section of the datasheet. The CAU enables secure firmware updates and TLS handshake acceleration in resource-constrained edge devices using the MCF51JF128VLH.

What package type and pin count does the MCF51JF128VLH use?

The MCF51JF128VLH uses a 64-pin LQFP package (10 mm × 10 mm, 0.5 mm pitch), identified by the "LH" suffix in its part number per Freescale's ordering guide (Section 2.3). This package is RoHS-compliant and rated MSL3. Pin assignments - including VDD/VSS separation, dedicated USB_DP/DM, and multiplexed ADC/TSI functions - are fully documented in Section 8 (Pinout) of the MCF51JF128 datasheet Rev. 7, confirming mechanical and thermal compatibility with standard LQFP reflow profiles.