MCF51JM128VLD - 32-bit ColdFire V1 MCU 128KB Flash | NXP
Référence : MCF51JM128VLD ✗ Fin de vie| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $7.85 | $7,85 |
| 10 | $7.05 | $70,50 |
| 100 | $6.25 | $625,00 |
| 500 | $5.6 | $2 800,00 |
| 1 000 | $4.95 | $4 950,00 |
MCF51JM128VLD Présentation
A microcontroller unit (MCU) is a single integrated circuit that combines a processor core, memory, and peripherals into one chip, forming the lowest tier of the embedded processing hierarchy: MCU -> embedded processor -> microprocessor -> system-on-chip. The ColdFire V1 core used here is a 32-bit reduced instruction set computing (RISC) architecture derived from the Motorola 68000 lineage, and the MCF51JM family is part of NXP's Flexis series, where 8-bit S08 and 32-bit ColdFire V1 devices share common peripherals and development tools for seamless migration.
Key features include flash read/program/erase across the full operating voltage and temperature range, a memory security circuit protecting the 16 KB RAM, four serial communication interfaces, and operation from -40C to +105C. The wide 2.7 V to 5.5 V supply range allows direct connection to 3.3 V or 5 V systems without level shifting, a significant advantage over 1.8 V to 3.6 V-only modern MCUs.
Architecturally, the V1 core executes ColdFire instructions at up to 50.33 MHz and is supported by the Flexis Controller Continuum, meaning code and peripheral configurations port easily between MCF51 and MC9S08 family members. Integrated peripherals reduce external component count in cost-sensitive designs.
Typical applications include industrial control panels, USB-enabled consumer devices, building automation nodes, and motor control front ends, where a 5 V-tolerant 32-bit MCU with ample flash simplifies the bill of materials.
When designing in, note the part's End of Life status: new designs should evaluate Flexis-compatible migration paths, while existing designs should secure last-time-buy inventory.
This page synthesizes distributor pricing data, drop-in same-family alternatives, and EOL replacement guidance not found in a single manufacturer document.
Alternatives de remplacement direct pour MCF51JM128VLD — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Variantes de cette série
Modèles de la même série directement compatibles avec MCF51JM128VLD (même facteur de forme et même empreinte) — différant par Package, Connectivity, Maximum Clock Frequency, Series, Core Processor.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
MCF51JM64VLD
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
MCF51JM32VLD
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
MCF51JE128VLK
✅ Remplacement direct ⚠️ Spécifications non vérifiées✓ En stock
$6.95 / unité
Voir la fiche technique →MCF51JM128VLD Valeurs maximales et caractéristiques électriques
| Core Processor | ColdFire V1 (32-bit RISC) |
| Core Size | 32-bit |
| Fréquence d'horloge maximale | 50 MHz (50.33 MHz) |
| Flash Memory | 128 KB (128K x 8) |
| RAM Size | 16 KB |
| Supply Voltage Range | 2.7 V to 5.5 V |
| Température de fonctionnement | -40C to +105C |
| Boîtier | 44-LQFP (10x10 mm) |
| Type de montage | Surface Mount |
| Series | MCF51JM (Flexis) |
| Flash Programming | Read/program/erase over full operating voltage and temperature |
| RAM Security | Security circuit included |
| Program Memory Type | FLASH |
Guide de configuration des broches du MCF51JM128VLD 44-lqfp (10x10 mm)
Configuration des broches du MCF51JM128VLD (boîtier 44-lqfp (10x10 mm)). Ce circuit intégré numérique comprend des GPIO, des interfaces de communication (UART, SPI, I2C) et des broches d'alimentation. Consultez la fiche technique du fabricant pour les fonctions alternatives des broches et les options de configuration. Indispensable pour la conception de systèmes embarqués et la conception de circuits imprimés.
Aucune donnée de brochage détaillée disponible pour MCF51JM128VLD.
Consultez la fiche technique pour la configuration complète des broches.
Applications typiques
MCF51JM128VLD convient pour 6 applications: Industrial Control Panels, USB Consumer Devices, Building Automation Nodes, Motor Control Front Ends, Test and Measurement Instrumentation, Legacy Embedded System Sustainment.
Industrial Control Panels
The MCF51JM128VLD fits industrial panel controllers because its 2.7 V to 5.5 V supply range connects directly to legacy 5 V PLC rails without regulators or level shifters, and the -40C to +105C rating survives enclosure-mounted thermal extremes. The 50 MHz ColdFire V1 core provides headroom for state-machine logic, HMI scanning, and communication stacks, while 128 KB flash stores field-updatable firmware over the full voltage and temperature range per the NXP datasheet. Peripherals integrate UART, SPI, and I2C functions that link the MCU to operator interfaces and I/O expanders. Since the part is EOL, use it in sustaining designs and secure last-time-buy stock for future production continuity.
Recommandé
USB Consumer Devices
The MCF51JM family targets USB-connected consumer products, and the 128 KB flash of the VLD variant accommodates USB enumeration tables, HID or CDC class firmware, and application logic with room to spare. The wide 2.7 V to 5.5 V input tolerance lets the MCU run from USB VBUS directly, and the 44-LQFP 10x10 mm footprint suits compact two-layer consumer boards. The 16 KB RAM with security circuit protects stored data in retail devices. Designers should confirm the specific USB peripheral configuration of the VLD speed/temperature grade in the MCF51JM128 datasheet, as USB capability varies across the JM family variants.
Recommandé
Building Automation Nodes
Building automation sensor and actuator nodes benefit from the MCF51JM128VLD's combination of 128 KB flash for protocol stacks (BACnet-lite, DALI gateways, Modbus RTU), 50 MHz processing for multi-channel polling, and full-temperature-range flash programming that allows remote firmware updates in rooftop or mechanical-room environments rated to +105C. The 5.5 V maximum supply permits direct operation from 24 V-derived 5 V auxiliary rails common in HVAC controllers. Its EOL status means new node designs should prefer active Kinetis parts, but existing installed-base node refresh can reuse this part while inventory lasts, minimizing requalification effort.
Recommandé
Motor Control Front Ends
For small motor control front ends - fan, pump, and actuator drivers - the MCF51JM128VLD provides deterministic 50 MHz ColdFire V1 execution for PWM generation, commutation sequencing, and current-loop supervisory logic, while on-chip ADC channels sample bus voltage and phase currents (verify channel count in the datasheet). The wide 5.5 V supply tolerance matches 5 V gate-driver logic domains, and the 44-LQFP thermal performance suits compact driver boards. The -40C floor supports outdoor pump and garage-door applications. For closed FOC control, NXP's 56F8xxx digital signal controllers offer higher computation throughput with comparable supply ranges.
Recommandé
Test and Measurement Instrumentation
Bench and portable instrumentation uses the MCF51JM128VLD as a front-panel controller: the 50 MHz core scans keys and updates displays while the main measurement ASIC handles acquisition, and 128 KB flash stores calibration constants with in-system reprogramming over the entire -40C to +105C range. The 5.5 V supply maximum simplifies integration with legacy 5 V analog front-end supplies common in laboratory instruments. The 16 KB RAM buffers measurement sequences and display frame data. Because the part is End of Life, instrument makers should hold last-time-buy inventory sized to service commitments before migrating panel-controller designs to active ARM-based MCUs.
Recommandé
Legacy Embedded System Sustainment
A primary practical use of MCF51JM128VLD today is sustaining shipping products whose firmware and PCB were qualified against the ColdFire V1 Flexis platform. Because MCF51JM64VLD and MCF51JM32VLD share the same 44-LQFP footprint and pinout, a design can be re-sourced within the family if firmware shrinks, and Rochester Electronics continues authorized manufacture of EOL Freescale/NXP parts. Procurement teams should combine authorized-channel last-time buys with a validated migration plan to NXP's active Kinetis portfolio, which preserves NXP toolchain investment while restoring lifecycle security and supply-chain longevity.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour MCF51JM128VLD — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | MCF51JM64VLD | MCF51JM32VLD | MCF51JE128VLK |
|---|---|---|---|---|
| Package | 44-LQFP (10x10 mm) | 44-LQFP (10x10 mm) - same | 44-LQFP (10x10 mm) - same | LQFP (verify exact variant) |
| Brand | NXP Semiconductors (Freescale legacy) | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Core | ColdFire V1, 32-bit | ColdFire V1, 32-bit | ColdFire V1, 32-bit | ColdFire V1, 32-bit |
| Max Clock | 50 MHz | 50 MHz | 50 MHz | 50 MHz |
| Flash Memory | 128 KB | 64 KB | 32 KB | 128 KB |
| Supply Voltage | 2.7 V to 5.5 V | 2.7 V to 5.5 V | 2.7 V to 5.5 V | 2.7 V to 5.5 V |
| Operating Temperature | -40C to +105C | -40C to +105C | -40C to +105C | -40C to +105C |
| Lifecycle Status | End of Life | EOL family | EOL family | EOL family |
Principaux différenciateurs
- Largest flash in the 44-LQFP JM family (vs MCF51JM64VLD)
- Memory headroom over the entry variant (vs MCF51JM32VLD)
- Full-feature set within the same footprint (vs MCF51JE128VLK)
Notes de conception
The MCF51JM128VLD is officially End of Life per the NXP product page. Before committing it to any build of material, confirm date codes and authorized-channel sourcing (DigiKey Rochester Electronics listing, Mouser) to avoid counterfeit EOL stock from open-market brokers. Request NXP's discontinuance Product Change Notice to document the official last-order and last-ship dates in your component obsolescence management records.
Leverage the 2.7 V to 5.5 V supply range: the MCU can run directly from 5 V USB VBUS or 3.3 V rails without a regulator, and flash read/program/erase is specified across the full voltage and temperature range per the MCF51JM128 datasheet. Decouple VDD with 0.1 uF ceramic capacitors at each supply pin pair plus bulk capacitance per NXP reference designs; verify exact pin-count decoupling requirements in the datasheet pin connections table.
The 44-LQFP 10x10 mm footprint on a two-layer board is workable at 50 MHz, but route the crystal/oscillator traces short and guard them from switching I/O. If flash reprogramming occurs in the field across the full 5.5 V supply span, ensure the programming voltage tolerance is respected at the rail under worst-case load transients - brownouts during erase can corrupt flash. Keep 128 KB image builds under budget to allow later migration to the 64 KB MCF51JM64VLD if supply forces a substitution.
Informations de conformité
NXP product page includes an Environmental Quality section, but specific RoHS/REACH/halogen values were not present in the retrieved data. Verify on nxp.com/part/MCF51JM128VLD before compliance sign-off.
