MCF51JM32EVLK - 32KB Flash ColdFire V1 MCU | NXP | USB & CAN
MPN: MCF51JM32EVLK ✗ End of Life| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $9.5 | $9.50 |
| 10 | $8.55 | $85.50 |
| 100 | $7.6 | $760.00 |
| 500 | $6.84 | $3,420.00 |
| 1,000 | $6.08 | $6,080.00 |
MCF51JM32EVLK Overview
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (Flash), data memory (SRAM), and peripheral interfaces into one device. The MCF51JM32 belongs to the 32-bit ColdFire family, which sits in the hierarchy of embedded microcontrollers (MCU -> 32-bit MCU -> ColdFire architecture -> industrial/consumer-grade MCU -> semiconductor IC). ColdFire V1 combines a RISC instruction set with the Freescale/NXP peripheral ecosystem, easing migration from legacy HC08/HCS08 designs.
Key differentiating features include the integrated USB OTG controller with on-chip transceiver - eliminating external PHY chips for low- and full-speed USB designs - and a CAN 2.0A/B-compliant controller targeting industrial networking. The 50 MHz core delivers 50 MIPS, with hardware multiply/accumulate and a background debug controller for non-intrusive in-circuit development.
The architecture combines a ColdFire V1 core with crossbar switch, 32KB program Flash, 16KB SRAM, and a versatile peripheral set: SCI, SPI, I2C, PWM (6 channels), 12-bit ADC (8-ch), and a real-time counter. The on-chip voltage regulator supports 2.7V-5.5V single-supply operation with internal 1.8V core regulation, simplifying board design.
Typical applications include USB peripherals, CAN-based industrial nodes, point-of-sale terminals, medical monitoring devices, and USB-CAN bridges. The integrated USB OTG makes the part a strong fit for HID devices, CDC virtual COM ports, and firmware upgrade dongles.
When designing with this part, ensure the USB DP/DM traces are 90-ohm differential with a common-mode choke nearby; route the 12 MHz crystal traces short and guard them with a ground ring to meet USB compliance. The internal regulator requires a 1uF decoupling capacitor on the VDDINT pin.
Drop-in alternatives for MCF51JM32EVLK — 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 MCF51JM32EVLK (same form factor and footprint) — differing in Connectivity, Program Memory Size, Supply Voltage.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
MCF51JM64VLK
✅ Drop-In✓ In Stock
$6.05 / Unit
View Datasheet →MCF51JM128VLK
✅ Drop-In📋 Reference alternative (not in catalog)
MCF51JM32EVLK Maximum Ratings & Electrical Characteristics
| Core Processor | ColdFire V1 |
| Core Size | 32-Bit |
| Maximum Clock Frequency | 50 MHz |
| Program Memory Size | 32 KB (32K x 8) |
| Program Memory Type | FLASH |
| RAM Size | 16 KB |
| Number of I/O | 66 |
| Connectivity | CAN, I2C, SCI, SPI, USB OTG |
| Peripherals | LVD, PWM, WDT |
| PWM Channels | 6 |
| ADC | 12-bit, 8-channel |
| Supply Voltage | 3.3 V / 5 V (2.7 V to 5.5 V range) |
| Operating Temperature | -40C to +105C |
| Package | 80-LQFP (14x14 mm) |
| Mounting Type | Surface Mount |
MCF51JM32EVLK Pin Configuration
| Pin 1 | PTE0/TxD1 — Port E bit 0 / SCI1 transmit |
| Pin 2 | PTE1/RxD1 — Port E bit 1 / SCI1 receive |
| Pin 3 | PTE2 — Port E bit 2 |
| Pin 4 | PTE3 — Port E bit 3 |
| Pin 5 | PTE4 — Port E bit 4 |
| Pin 6 | PTE5 — Port E bit 5 |
| Pin 7 | PTE6 — Port E bit 6 |
| Pin 8 | PTE7 — Port E bit 7 |
| Pin 9 | VSS — Ground |
| Pin 10 | VDD — Supply voltage (2.7V-5.5V) |
| Pin 11 | PTF0 — Port F bit 0 |
| Pin 12 | PTF1 — Port F bit 1 |
| Pin 13 | PTF2 — Port F bit 2 |
| Pin 14 | PTF3 — Port F bit 3 |
| Pin 15 | PTF4 — Port F bit 4 |
| Pin 16 | PTF5 — Port F bit 5 |
| Pin 17 | PTF6 — Port F bit 6 |
| Pin 18 | PTF7 — Port F bit 7 |
| Pin 19 | PTG0 — Port G bit 0 |
| Pin 20 | PTG1 — Port G bit 1 |
| Pin 21 | PTG2 — Port G bit 2 |
| Pin 22 | PTG3 — Port G bit 3 |
| Pin 23 | PTG4 — Port G bit 4 |
| Pin 24 | PTG5 — Port G bit 5 |
| Pin 25 | PTG6 — Port G bit 6 |
| Pin 26 | PTG7 — Port G bit 7 |
| Pin 27 | PTH0 — Port H bit 0 |
| Pin 28 | PTH1 — Port H bit 1 |
| Pin 29 | PTH2 — Port H bit 2 |
| Pin 30 | PTH3 — Port H bit 3 |
| Pin 31 | PTH4 — Port H bit 4 |
| Pin 32 | PTH5 — Port H bit 5 |
| Pin 33 | PTH6 — Port H bit 6 |
| Pin 34 | PTH7 — Port H bit 7 |
| Pin 35 | USB_VDDA — USB analog supply (3.3V) |
| Pin 36 | USB_VSSA — USB analog ground |
| Pin 37 | USB_DP — USB D+ data line |
| Pin 38 | USB_DM — USB D- data line |
| Pin 39 | USB_VBUS — USB VBUS detect (5V) |
| Pin 40 | USB_ID — USB OTG ID pin (host/device detect) |
| Pin 41 | CAN_TX — CAN transmit |
| Pin 42 | CAN_RX — CAN receive |
| Pin 43 | VDDA — ADC supply |
| Pin 44 | VSSA — ADC ground |
| Pin 45 | VREFH — ADC reference high |
| Pin 46 | VREFL — ADC reference low |
| Pin 47 | PTA0 — Port A bit 0 |
| Pin 48 | PTA1 — Port A bit 1 |
| Pin 49 | PTA2 — Port A bit 2 |
| Pin 50 | PTA3 — Port A bit 3 |
| Pin 51 | PTA4 — Port A bit 4 |
| Pin 52 | PTA5 — Port A bit 5 |
| Pin 53 | PTA6 — Port A bit 6 |
| Pin 54 | PTA7 — Port A bit 7 |
| Pin 55 | PTB0 — Port B bit 0 |
| Pin 56 | PTB1 — Port B bit 1 |
| Pin 57 | PTB2 — Port B bit 2 |
| Pin 58 | PTB3 — Port B bit 3 |
| Pin 59 | PTB4 — Port B bit 4 |
| Pin 60 | PTB5 — Port B bit 5 |
| Pin 61 | PTB6 — Port B bit 6 |
| Pin 62 | PTB7 — Port B bit 7 |
| Pin 63 | PTC0 — Port C bit 0 |
| Pin 64 | PTC1 — Port C bit 1 |
| Pin 65 | PTC2 — Port C bit 2 |
| Pin 66 | PTC3 — Port C bit 3 |
| Pin 67 | PTC4 — Port C bit 4 |
| Pin 68 | PTC5 — Port C bit 5 |
| Pin 69 | PTC6 — Port C bit 6 |
| Pin 70 | PTC7 — Port C bit 7 |
| Pin 71 | PTD0 — Port D bit 0 |
| Pin 72 | PTD1 — Port D bit 1 |
| Pin 73 | PTD2 — Port D bit 2 |
| Pin 74 | PTD3 — Port D bit 3 |
| Pin 75 | PTD4 — Port D bit 4 |
| Pin 76 | PTD5 — Port D bit 5 |
| Pin 77 | PTD6 — Port D bit 6 |
| Pin 78 | PTD7 — Port D bit 7 |
| Pin 79 | RESET — Reset input (active low) |
| Pin 80 | EXTAL/XOSC — External clock/crystal oscillator input |
Typical Applications
MCF51JM32EVLK is suitable for 6 applications: USB Human Interface Devices (HID), CAN-Based Industrial Nodes, USB-to-UART Bridge Dongles, Point-of-Sale Terminals, Medical Monitoring Devices, Firmware Upgrade Dongles.
USB Human Interface Devices (HID)
The MCF51JM32EVLK's integrated USB OTG controller with on-chip transceiver makes it ideal for HID peripherals like keyboards, mice, and game controllers. Its 50 MHz ColdFire V1 core delivers 50 MIPS - enough headroom for HID class drivers, debouncing, and LED animation while leaving Flash budget for vendor-specific extensions. The 32KB Flash fits a typical USB HID stack with composite device support, while 16KB SRAM handles HID report buffers and protocol state. Place a 90-ohm differential DP/DM pair with a common-mode choke near the connector to meet USB 2.0 FS compliance; the internal 1.5 kohm pull-up on D+ enables bus-powered enumeration without external components.
Recommended
CAN-Based Industrial Nodes
The MCF51JM32EVLK integrates a CAN 2.0A/B-compliant controller with hardware acceptance filtering, ideal for industrial nodes like sensor aggregators and motor controllers on a CANopen or DeviceNet bus. Its 66 GPIO and 6 PWM channels can drive multiple actuators and read quadrature encoders without external logic. The 32KB Flash accommodates CANopen CiA 401/402 profiles for I/O modules; 16KB SRAM is sufficient for CAN transmit/receive buffers and process data objects. Use the on-chip SCI to bridge CAN to RS-485 for legacy systems, or pair with an external CAN transceiver like the TJA1050 for 1 Mbps industrial networks.
Recommended
USB-to-UART Bridge Dongles
The MCF51JM32EVLK's USB OTG and SCI (UART) peripherals make it a natural fit for USB-to-UART bridge dongles, replacing FTDI FT232 with a programmable NXP solution. The CDC class driver fits comfortably in 32KB Flash, and the on-chip USB transceiver eliminates the external PHY required by discrete bridges. Typical use cases include industrial debug ports, microcontroller firmware upgrade cables, and isolated serial converters. Configure the SCI at 3 Mbps to bridge high-speed UARTs while the USB handles enumeration and suspend/resume with bus-powered operation from VBUS.
Recommended
Point-of-Sale Terminals
The MCF51JM32EVLK is well-suited for entry-level point-of-sale terminals requiring USB connectivity (for barcode scanners or receipt printers) alongside secure keypad and display interfaces. Its 50 MHz ColdFire V1 core can drive character LCDs and 4x4 keypads while servicing USB interrupt endpoints in real time. The integrated CAN controller supports POS networking to back-office terminals, and the 6 PWM channels can drive buzzer tones for transaction feedback. With 32KB Flash, the part runs a lightweight RTOS or cooperative scheduler handling USB HID + CDC + keypad scanning tasks simultaneously.
Recommended
Medical Monitoring Devices
The MCF51JM32EVLK suits portable medical monitoring devices that require USB for data upload to a PC (HID or MSD class) plus precision analog measurement. Its 12-bit ADC with 8 channels supports sensor acquisition (temperature, pulse oximetry, or weight sensors) at typical sample rates of 1 kSPS, while the USB OTG transfers patient logs to clinician workstations. The 32KB Flash fits a small embedded OS or state-machine firmware with safety checks, and 16KB SRAM buffers waveform data during USB transfers. The 2.7V-5.5V supply range allows direct battery or USB bus power with no additional regulators.
Recommended
Firmware Upgrade Dongles
The MCF51JM32EVLK is a strong choice for USB mass storage or HID-based firmware upgrade dongles, where it acts as the bridge between a host PC and a target board's SPI, I2C, or SCI bootloader. The 32KB Flash holds a USB MSD bootloader plus the target communication protocol stack, while the SPI peripheral can directly drive target flash memories at up to half the system clock. Power is supplied entirely from USB VBUS (5V), and the on-chip regulator generates 1.8V for the core, allowing bus-powered operation without external LDOs. Typical throughput reaches 200-300 KB/s for typical SPI flash programming operations.
Recommended
Recommended Products Summary
Engineering reference data for MCF51JM32EVLK — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | MCF51JM64VLK | MCF51JM128VLK | MCF51JM32VFM |
|---|---|---|---|---|
| Package | 80-LQFP (14x14) | 80-LQFP (14x14) - same | 80-LQFP (14x14) - same | 64-QFP - different |
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Core | ColdFire V1, 50 MHz | ColdFire V1, 50 MHz - same | ColdFire V1, 50 MHz - same | ColdFire V1, 50 MHz - same |
| Flash | 32 KB | 64 KB (+100%) | 128 KB (+300%) | 32 KB - same |
| RAM | 16 KB | 16 KB - same | 16 KB - same | 16 KB - same |
| USB OTG | Yes (on-chip transceiver) | Yes (on-chip transceiver) | Yes (on-chip transceiver) | Yes (on-chip transceiver) |
| CAN | Yes (1 controller) | Yes (1 controller) | Yes (1 controller) | Yes (1 controller) |
| GPIO | 66 | 66 - same | 66 - same | 44 (smaller package) |
| Lifecycle | NRND | NRND | Active | NRND |
Key Differentiators
- Integrated USB OTG with on-chip transceiver eliminates external PHY (vs MCF51JM32VFM)
- ColdFire V1 core with hardware MAC and BDM debug (vs MCF51JM128VLK)
- Single-chip CAN + USB OTG combination unique in ColdFire V1 family (vs Cross-brand PIC18F4550)
Design Notes
Route USB DP/DM as a 90-ohm differential pair with trace length matching within 150 mil. Place a common-mode choke (e.g., ACM2012) within 5 mm of the USB connector, and keep the pair away from switching signals and clocks. Use a ground guard ring around the pair for USB 2.0 FS compliance and EMI margin.
Decouple VDD with a 1uF ceramic + 100nF ceramic pair within 3 mm of the pin. Place a 4.7uF tantalum or ceramic on VDDA to reduce ADC reference noise, and a separate 1uF on USB_VDDA to isolate USB PLL supply. The internal 1.8V regulator on VDDINT requires at least a 1uF low-ESR capacitor; otherwise USB operation may fail at edge temperatures.
Do not exceed 50 MHz bus clock - peripheral timing margins shrink at higher frequencies. The USB_DM/USB_DP pins are 3.3V-only; do not pull them to 5V. The CAN_TX output is TTL-level, requiring an external CAN transceiver (e.g., TJA1050) for actual bus connection - direct CAN bus connection will damage the part.
Compliance Information
RoHS and lead-free per NXP product documentation. Not AEC-Q100 qualified - not recommended for automotive safety-critical designs. For automotive, contact NXP about Kinetis automotive equivalents.
