MCF51JM64VLK - ColdFire V1 50MHz MCU, 64KB Flash, USB | NXP
MPN: MCF51JM64VLK ⚠ Last Time Buy| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $9.85 | $9.85 |
| 10 | $8.95 | $89.50 |
| 100 | $7.92 | $792.00 |
| 500 | $6.88 | $3,440.00 |
| 1,000 | $6.05 | $6,050.00 |
MCF51JM64VLK Overview
A microcontroller (MCU) is an integrated circuit containing a processor core, program memory, RAM, and a set of on-chip peripherals. Within the broader semiconductor taxonomy, an MCU belongs to the category of microcontrollers and digital signal controllers, sitting under the larger hierarchy of embedded computing devices. ColdFire V1 represents a streamlined 32-bit architecture that retains the software model and instruction-set style of legacy ColdFire cores while targeting cost-sensitive applications traditionally served by 8-bit parts.
Key features of the MCF51JM64VLK include its integrated full-speed USB OTG controller with on-chip transceiver, a multi-channel timer/PWM module, up to 66 general-purpose I/O, CAN, I2C, SCI, and SPI connectivity, and a flexible low-voltage detect (LVD) and watchdog timer. The 64KB Flash program memory supports in-application reprogramming, making field firmware updates straightforward. The 80-pin LQFP package offers ample I/O for human-machine interface, motor control, and USB-connected peripheral designs.
The MCF51JM64VLK is built on a 3.3V/5V tolerant process with an on-chip voltage regulator, simplifying system power design. The ColdFire V1 core delivers efficient deterministic interrupt handling and a rich peripheral set in a small code footprint, allowing developers to deploy feature-rich firmware within the 64KB Flash budget.
Typical applications include USB human-interface devices such as keyboards, mice, and HID-class peripherals; industrial control nodes requiring CAN connectivity; low-cost home appliances with USB diagnostic ports; and consumer electronics leveraging USB OTG for device/host roles. The 50MHz speed and on-chip USB make it especially attractive for connected embedded nodes.
When designing with this device, ensure that the USB D+/D- lines are routed as a 90-ohm differential pair with proper length matching. Place the 12MHz crystal or external clock source within 1cm of the XTAL pins to minimize EMI and jitter, and provide adequate bulk decoupling near each power pin pair.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone, helping engineers select, source, and integrate the MCF51JM64VLK into USB-enabled embedded designs.
Drop-in alternatives for MCF51JM64VLK — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with MCF51JM64VLK (same form factor and footprint) — differing in Package, Connectivity, Program Memory Size, Series, Number of I/O.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
MCF51JM128VLK
✅ Drop-In📋 Reference alternative (not in catalog)
MCF51JM32VLK
✅ Drop-In✓ In Stock
$7.4167 / Unit
View Datasheet →MCF51JM32EVLK
✅ Drop-In✓ In Stock
$6.08 / Unit
View Datasheet →MCF51JM64EVQH
✅ Drop-In✓ In Stock
$4.42 / Unit
View Datasheet →MCF51JE128VLK
✅ Drop-In✓ In Stock
$6.95 / Unit
View Datasheet →MCF51JM64VLK Maximum Ratings & Electrical Characteristics
| Core Processor | ColdFire V1 |
| Core Size | 32-Bit |
| Speed | 50 MHz |
| Program Memory Size | 64 KB (64K x 8) |
| Program Memory Type | FLASH |
| Number of I/O | 66 |
| Connectivity | CANbus, I2C, SCI, SPI, USB OTG |
| Peripherals | LVD, PWM, WDT |
| Supply Voltage | 3.3 V / 5 V |
| Package | 80-LQFP (14x14 mm) |
| Mounting Type | Surface Mount |
| Series | Flexis MCF51JM |
| RoHS Status | Compliant (per NXP product page) |
MCF51JM64VLK Pin Configuration
| Pin 1 | PTE0/TxD1 — Port E GPIO / SCI1 transmit |
| Pin 2 | PTE1/RxD1 — Port E GPIO / SCI1 receive |
| Pin 3 | PTE2 — Port E GPIO |
| Pin 4 | PTE3 — Port E GPIO |
| Pin 5 | VSS — Ground |
| Pin 6 | VDD — Digital supply (3.3V regulated) |
| Pin 7 | PTE4 — Port E GPIO |
| Pin 8 | PTE5 — Port E GPIO |
| Pin 9 | PTE6 — Port E GPIO |
| Pin 10 | PTE7 — Port E GPIO |
| Pin 11 | VSS — Ground |
| Pin 12 | VDD — Digital supply |
| Pin 13 | PTF0 — Port F GPIO |
| Pin 14 | PTF1 — Port F GPIO |
| Pin 15 | PTF2 — Port F GPIO |
| Pin 16 | PTF3 — Port F GPIO |
| Pin 17 | PTF4 — Port F GPIO |
| Pin 18 | PTF5 — Port F GPIO |
| Pin 19 | PTF6 — Port F GPIO |
| Pin 20 | PTF7 — Port F GPIO |
| Pin 21 | PTG0 — Port G GPIO |
| Pin 22 | PTG1 — Port G GPIO |
| Pin 23 | PTG2 — Port G GPIO |
| Pin 24 | PTG3 — Port G GPIO |
| Pin 25 | VSS — Ground |
| Pin 26 | VDD — Digital supply |
| Pin 27 | PTH0 — Port H GPIO |
| Pin 28 | PTH1 — Port H GPIO |
| Pin 29 | PTH2 — Port H GPIO |
| Pin 30 | PTH3 — Port H GPIO |
| Pin 31 | PTH4 — Port H GPIO |
| Pin 32 | PTH5 — Port H GPIO |
| Pin 33 | PTH6 — Port H GPIO |
| Pin 34 | PTH7 — Port H GPIO |
| Pin 35 | USB_DP — USB D+ data line |
| Pin 36 | USB_DM — USB D- data line |
| Pin 37 | VUSB33 — USB 3.3V regulator output |
| Pin 38 | VSS — Ground |
| Pin 39 | PTJ0 — Port J GPIO |
| Pin 40 | PTJ1 — Port J GPIO |
| Pin 41 | PTJ2 — Port J GPIO |
| Pin 42 | PTJ3 — Port J GPIO |
| Pin 43 | PTJ4 — Port J GPIO |
| Pin 44 | PTJ5 — Port J GPIO |
| Pin 45 | PTJ6 — Port J GPIO |
| Pin 46 | PTJ7 — Port J GPIO |
| Pin 47 | PTB0 — Port B GPIO |
| Pin 48 | PTB1 — Port B GPIO |
| Pin 49 | PTB2 — Port B GPIO |
| Pin 50 | PTB3 — Port B GPIO |
| Pin 51 | PTB4 — Port B GPIO |
| Pin 52 | PTB5 — Port B GPIO |
| Pin 53 | PTB6 — Port B GPIO |
| Pin 54 | PTB7 — Port B GPIO |
| Pin 55 | PTC0 — Port C GPIO |
| Pin 56 | PTC1 — Port C GPIO |
| Pin 57 | PTC2 — Port C GPIO |
| Pin 58 | PTC3 — Port C GPIO |
| Pin 59 | PTC4 — Port C GPIO |
| Pin 60 | PTC5 — Port C GPIO |
| Pin 61 | PTC6 — Port C GPIO |
| Pin 62 | PTC7 — Port C GPIO |
| Pin 63 | PTD0 — Port D GPIO |
| Pin 64 | PTD1 — Port D GPIO |
| Pin 65 | PTD2 — Port D GPIO |
| Pin 66 | PTD3 — Port D GPIO |
| Pin 67 | PTD4 — Port D GPIO |
| Pin 68 | PTD5 — Port D GPIO |
| Pin 69 | PTD6 — Port D GPIO |
| Pin 70 | PTD7 — Port D GPIO |
| Pin 71 | PTA0 — Port A GPIO |
| Pin 72 | PTA1 — Port A GPIO |
| Pin 73 | PTA2 — Port A GPIO |
| Pin 74 | PTA3 — Port A GPIO |
| Pin 75 | PTA4 — Port A GPIO |
| Pin 76 | PTA5 — Port A GPIO |
| Pin 77 | PTA6 — Port A GPIO |
| Pin 78 | PTA7 — Port A GPIO |
| Pin 79 | RESET_b — Active-low reset input |
| Pin 80 | EXTAL/XOSC — External oscillator / crystal input |
Typical Applications
MCF51JM64VLK is suitable for 6 applications: USB HID Devices (Keyboard, Mouse, Gamepad), Industrial CAN Nodes and Fieldbus Bridges, USB Diagnostic Ports on Home Appliances, Low-Cost USB Barcode Scanners and POS Terminals, USB-Connected Sensor Hubs, USB-to-UART / SPI / I2C Bridge Dongles.
USB HID Devices (Keyboard, Mouse, Gamepad)
The MCF51JM64VLK's integrated USB OTG controller with on-chip transceiver eliminates the need for an external USB PHY, making it ideal for USB HID-class peripherals such as keyboards, mice, and gamepads. With 64KB Flash and 50MHz ColdFire V1 core, it can comfortably run HID report handlers plus capacitive touch or matrix-scanning firmware. The exposed USB D+/D- pins allow direct 90-ohm differential routing to a USB-B or USB-C connector. Compared to a discrete MCU plus external PHY, the JM64 reduces BOM cost by 0.80-1.50 USD per unit.
Recommended
Industrial CAN Nodes and Fieldbus Bridges
The MCF51JM64VLK integrates a CAN 2.0B controller alongside I2C, SCI, and SPI, supporting compact industrial nodes that bridge field sensors to CANbus backbones. The 50MHz ColdFire V1 core handles CAN message arbitration, periodic transmit scheduling, and protocol conversion with deterministic interrupt latency. With 66 GPIO, designers can directly drive opto-isolated outputs and read digital inputs without external I/O expanders. The -40C to +105C operating range supports cabinet-mounted industrial installations.
Recommended
USB Diagnostic Ports on Home Appliances
Consumer appliances such as washing machines, dishwashers, and HVAC controllers increasingly use USB diagnostic ports for service technician access. The MCF51JM64VLK's USB OTG capability allows the appliance to enumerate as a USB device when the service cable is connected, streaming diagnostic logs to a laptop. The integrated ColdFire V1 core runs both the main control loop and the USB stack within 64KB Flash. Its 80-LQFP package exposes enough I/O for HMI keypads, LED indicators, and sensor inputs.
Recommended
Low-Cost USB Barcode Scanners and POS Terminals
Point-of-sale terminals and barcode scanners benefit from the MCF51JM64VLK's USB device capability, which simplifies the USB HID or CDC connection to a host PC. The ColdFire V1 core decodes 1D/2D barcode symbologies within its 50MHz budget, while the integrated peripherals drive buzzers, LEDs, and trigger inputs. With 64KB Flash, firmware can include both the scanner engine and the USB stack. The 80-LQFP package exposes pins for an external imager sensor interface.
Recommended
USB-Connected Sensor Hubs
Multi-sensor hubs that aggregate temperature, humidity, pressure, and motion data over USB benefit from the MCF51JM64VLK's combination of I2C/SPI connectivity and USB device interface. The 50MHz ColdFire V1 core performs sensor fusion and presents a USB composite device to the host. With 66 GPIO, designers can wire up to 8-12 I2C/SPI sensors plus discrete analog inputs. The compact 80-LQFP package is well-suited to compact hub enclosures.
Recommended
USB-to-UART / SPI / I2C Bridge Dongles
The MCF51JM64VLK is well-suited to USB-to-serial bridge dongles used in development, factory programming, and field service tools. Its integrated USB OTG controller enumerates as a CDC class device, while the SCI, SPI, and I2C peripherals provide the target-side bridge channels. With 64KB Flash, firmware can include multiple protocol stacks plus bootloader logic. The 3.3V/5V tolerant I/O simplifies connection to legacy UART/SPI peripherals without level shifters.
Recommended
Recommended Products Summary
Engineering reference data for MCF51JM64VLK — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | MCF51JM128VLK | MCF51JM32VLK | MCF51JM32EVLK | MCF51JM64EVQH | MCF51JE128VLK |
|---|---|---|---|---|---|---|
| Package | 80-LQFP (14x14) | 80-LQFP (14x14) - same | 80-LQFP (14x14) - same | 80-LQFP (14x14) - same | 80-LQFP (14x14) - same | 80-LQFP (14x14) - same |
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Flash Memory | 64 KB | 128 KB (+100%) | 32 KB (-50%) | 32 KB (-50%) | 64 KB (same) | 128 KB (+100%) |
| Core | ColdFire V1 50 MHz | ColdFire V1 50 MHz | ColdFire V1 50 MHz | ColdFire V1 50 MHz | ColdFire V1 50 MHz | ColdFire V1 50 MHz |
| USB OTG | Yes (integrated) | Yes (integrated) | Yes (integrated) | Yes (integrated) | Yes (integrated) | Yes (integrated) |
| CANbus | Yes | Yes | Yes | Yes | Yes | Yes |
Key Differentiators
- Integrated USB OTG with on-chip transceiver (vs MCF51JM32VLK)
- Flexis series 8-bit/32-bit pin compatibility (vs MC9S08AW60CPUE)
- ColdFire V1 core with USB and CAN in one device (vs MCF51JE128VLK)
Design Notes
Route the USB_DP and USB_DM pins (pins 35-36) as a 90-ohm differential pair with matched length (delta less than 150 mil). Keep the pair away from switching signals and place a common-mode choke near the connector for EMI compliance. The VUSB33 pin requires a 0.1uF decoupling capacitor placed within 2mm of the pin to stabilize the internal USB regulator.
Do not assume the JM64 is drop-in to Kinetis KE series without peripheral driver rewrites. The ColdFire V1 interrupt model and register layout differ from ARM Cortex-M0/M4. For new designs, evaluate the pin-compatible MCF51JM128VLK or migrate to MKL02Z/MKL26Z ARM parts only after revalidating firmware. Verify last-time-buy date before committing to long-lead designs.
The MCF51JM64VLK integrates a 3.3V LDO from the external 5V supply; place 4.7uF bulk + 0.1uF ceramic decoupling on each VDD/VSS pair (typically 6 pairs in the 80-LQFP). The USB VUSB33 rail requires 1uF minimum. Brown-out reset is supported via the LVD peripheral; configure LVD threshold in initialization code for predictable reset behavior.
Place the external crystal or oscillator within 1cm of the EXTAL/XTAL pins (pin 80 and adjacent) to minimize parasitic capacitance and EMI. Use a guard ring tied to ground around the crystal area, and keep high-frequency traces away from this zone. For USB designs, dedicate a continuous ground plane beneath the USB differential pair to maintain 90-ohm impedance.
Compliance Information
RoHS and REACH compliance per NXP product page. Industrial temperature grade only (no AEC-Q100 automotive qualification). Not recommended for new automotive designs.
