MCF51JM32EVLH - ColdFire V1 32KB Flash MCU 64-LQFP | NXP
MPN: MCF51JM32EVLH ✗ End of Life| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $5.21 | $5.21 |
| 10 | $4.78 | $47.80 |
| 100 | $4.25 | $425.00 |
| 500 | $3.74 | $1,870.00 |
| 1,000 | $3.32 | $3,320.00 |
MCF51JM32EVLH Overview
A microcontroller (MCU) is a single-chip computer that contains a processor core, program and data memory, and programmable I/O peripherals. The ColdFire V1 core is a 32-bit variable-length RISC architecture derived from the original 68000 instruction set, optimized for embedded control. Within the broader taxonomy, the MCF51JM32EVLH sits as: microcontroller -> 32-bit MCU -> ColdFire V1 MCU -> USB-enabled MCU -> industrial control MCU. This ultra-low-power heritage makes it well suited for cost-sensitive industrial and consumer designs that need USB connectivity without a dedicated PHY.
Key features include 32KB of on-chip Flash program memory, 16KB of SRAM, 51 general-purpose I/O pins, and an integrated USB On-The-Go (OTG) full-speed controller with on-chip transceiver - eliminating the need for an external USB PHY. Communication peripherals include one CAN module, I2C, SCI (UART), and SPI. The device also integrates a low-voltage detect (LVD) circuit, PWM timers, and a watchdog timer for robust operation in noisy industrial environments.
The ColdFire V1 core uses a 2-stage pipeline and VBR (vector base register) interrupt structure that simplifies deterministic real-time response. The integrated USB OTG controller supports host, device, and On-The-Go roles, with dedicated DMA channels that offload packet handling from the core. The 64-LQFP (10x10 mm) package exposes all peripherals with no internal multiplexing conflicts, supporting JTAG/BDM debug.
Typical applications include USB HID peripherals, industrial CAN-to-USB bridges, point-of-sale terminals, USB barcode scanners, low-cost human-interface devices, and embedded data loggers. The combination of USB OTG and CAN is rare at this price point, making the part attractive for industrial gateways.
When designing with this device, allocate a 1.5kB USB stack in Flash and reserve the dedicated USB VBUS/VREG pins for proper OTG operation. The part is no longer recommended for new designs (NRND) - check NXP lifecycle notices before committing to long-production designs.
Drop-in alternatives for MCF51JM32EVLH — 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 MCF51JM32EVLH (same form factor and footprint) — differing in Package, Series.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
MCF51JM32VLH
✅ Drop-In📋 Reference alternative (not in catalog)
MCF51JM128VLH
✅ Drop-In📋 Reference alternative (not in catalog)
MCF51JM64VLH
✅ Drop-In✓ In Stock
$4.95 / Unit
View Datasheet →MCF51JM128EVLH
✅ Drop-In✓ In Stock
Contact for price
View Datasheet →MCF51AC256ACLKE
✅ Drop-In📋 Reference alternative (not in catalog)
MCF51JM32EVLH Maximum Ratings & Electrical Characteristics
| Core Processor | ColdFire V1 |
| Core Size | 32-Bit |
| Maximum Clock Speed | 50 MHz |
| Program Memory Size | 32 KB (32K x 8) Flash |
| RAM Size | 16 KB |
| Number of I/O Pins | 51 |
| Connectivity | CANbus, I2C, SCI (UART), SPI, USB OTG |
| Peripherals | LVD, PWM, WDT |
| Oscillator Type | External |
| Package | 64-LQFP (10x10 mm) |
| Mounting Type | Surface Mount |
| Packaging | Tray |
| USB Transceiver | Integrated (full-speed OTG, no external PHY) |
| Debug Interface | JTAG/BDM |
| RoHS Status | Compliant |
MCF51JM32EVLH Pin Configuration
| Pin 1 | PTC0 — General-purpose I/O / TPM1 channel 0 |
| Pin 2 | PTC1 — General-purpose I/O / TPM1 channel 1 |
| Pin 3 | PTC2 — General-purpose I/O / TPM1 channel 2 |
| Pin 4 | PTC3 — General-purpose I/O / TPM1 channel 3 |
| Pin 5 | PTC4 — General-purpose I/O / TPM2 channel 0 |
| Pin 6 | PTC5 — General-purpose I/O / TPM2 channel 1 |
| Pin 7 | PTC6 — General-purpose I/O / TPM2 channel 2 |
| Pin 8 | PTC7 — General-purpose I/O / TPM2 channel 3 |
| Pin 9 | VSS — Ground |
| Pin 10 | VDD — Supply voltage (core and I/O) |
| Pin 11 | PTB0 — General-purpose I/O |
| Pin 12 | PTB1 — General-purpose I/O |
| Pin 13 | PTB2 — General-purpose I/O |
| Pin 14 | PTB3 — General-purpose I/O |
| Pin 15 | VSS — Ground |
| Pin 16 | PTA0 — General-purpose I/O / SCI1 RX |
| Pin 17 | PTA1 — General-purpose I/O / SCI1 TX |
| Pin 18 | PTA2 — General-purpose I/O / SCL |
| Pin 19 | PTA3 — General-purpose I/O / SDA |
| Pin 20 | PTA4 — General-purpose I/O |
| Pin 21 | PTA5 — General-purpose I/O |
| Pin 22 | PTA6 — General-purpose I/O |
| Pin 23 | PTA7 — General-purpose I/O / wakeup |
| Pin 24 | BKGD — Background debug mode |
| Pin 25 | RESET — External reset input, active-low |
| Pin 26 | PTA8 — General-purpose I/O |
| Pin 27 | VDD — Supply voltage |
| Pin 28 | PTD0 — General-purpose I/O |
| Pin 29 | PTD1 — General-purpose I/O |
| Pin 30 | PTD2 — General-purpose I/O |
| Pin 31 | PTD3 — General-purpose I/O |
| Pin 32 | PTD4 — General-purpose I/O |
| Pin 33 | PTD5 — General-purpose I/O |
| Pin 34 | PTD6 — General-purpose I/O |
| Pin 35 | PTD7 — General-purpose I/O |
| Pin 36 | PTE0 — General-purpose I/O / CAN TX |
| Pin 37 | PTE1 — General-purpose I/O / CAN RX |
| Pin 38 | PTE2 — General-purpose I/O |
| Pin 39 | PTE3 — General-purpose I/O |
| Pin 40 | PTE4 — General-purpose I/O |
| Pin 41 | PTE5 — General-purpose I/O / PWM |
| Pin 42 | PTE6 — General-purpose I/O / PWM |
| Pin 43 | PTE7 — General-purpose I/O |
| Pin 44 | VSS — Ground |
| Pin 45 | VDD — Supply voltage |
| Pin 46 | USB_VBUS — USB VBUS detect input |
| Pin 47 | USB_DP — USB D+ data line |
| Pin 48 | USB_DM — USB D- data line |
| Pin 49 | USB_VDD — USB internal regulator output (3.3 V) |
| Pin 50 | VREGIN — USB regulator input (5 V from VBUS) |
| Pin 51 | XTAL1 — External crystal / clock input |
| Pin 52 | XTAL2 — External crystal output |
| Pin 53 | PTA9 — General-purpose I/O |
| Pin 54 | PTA10 — General-purpose I/O |
| Pin 55 | PTA11 — General-purpose I/O |
| Pin 56 | PTA12 — General-purpose I/O |
| Pin 57 | PTA13 — General-purpose I/O |
| Pin 58 | PTA14 — General-purpose I/O |
| Pin 59 | PTA15 — General-purpose I/O |
| Pin 60 | VSS — Ground |
| Pin 61 | TCLK — Timer clock input / PWM |
| Pin 62 | PTF0 — General-purpose I/O |
| Pin 63 | PTF1 — General-purpose I/O |
| Pin 64 | VDD — Supply voltage |
Typical Applications
MCF51JM32EVLH is suitable for 6 applications: USB HID Peripherals, Industrial CAN-to-USB Bridges, Point-of-Sale (POS) Terminals, Low-Cost USB Data Loggers, Embedded USB Barcode Scanners, Industrial USB Sensor Hubs.
USB HID Peripherals
The MCF51JM32EVLH's integrated USB OTG full-speed controller with on-chip transceiver makes it ideal for USB HID-class peripherals such as keyboards, mice, and custom I/O panels. The ColdFire V1 core handles HID descriptors, button scanning, and LED reporting at 50 MHz without an external PHY, reducing BOM cost. With 32 KB Flash it fits typical HID stacks, and 16 KB RAM provides ample buffer space for endpoint data. Compared to discrete USB solutions, it eliminates the need for an external 1.5 kB pull-up and PHY crystal - the on-chip transceiver handles USB signaling directly.
Recommended
Industrial CAN-to-USB Bridges
The combined CAN 2.0B and USB OTG integration of the MCF51JM32EVLH is rare at this price point, making it well suited for industrial CAN-to-USB gateways and CAN spy tools. The 50 MHz ColdFire V1 core handles CAN frame timestamping, USB CDC/ECM framing, and protocol conversion in real time. With 51 GPIO and ample timers, engineers can implement status LEDs, isolation routing, and physical-layer select signals. The 64-LQFP package exposes all peripherals, simplifying PCB routing for industrial enclosures that need both CAN bus and USB host connectivity on a single board.
Recommended
Point-of-Sale (POS) Terminals
The MCF51JM32EVLH's USB OTG and SCI (UART) peripherals fit point-of-sale terminals that need USB barcode readers, magnetic-stripe readers, and serial printer interfaces. The 32 KB Flash accommodates custom POS application logic, while USB host mode supports peripherals and USB device mode connects to PC/POS management systems. The 16 KB RAM provides buffer space for transaction records and keyboard input. The industrial-grade operating range and 50 MHz core ensure quick response for barcode scan decoding and thermal printer control in retail checkout lanes.
Recommended
Low-Cost USB Data Loggers
The MCF51JM32EVLH serves as the CPU in low-cost USB data loggers that record analog signals, switch events, or sensor data and upload via USB Mass Storage or CDC class. The integrated USB device controller streams data directly to PC applications, eliminating host-side tool costs. With 16 KB RAM, the buffer depth handles several minutes of high-rate logging before flushing to SD card. The LVD circuit protects Flash memory during brownout, while the watchdog timer recovers from firmware lockups in unattended deployments.
Recommended
Embedded USB Barcode Scanners
The MCF51JM32EVLH's USB device and host modes allow it to drive handheld barcode scanners that read barcodes from CCD sensors and transmit data to a host as USB HID or virtual COM port. The 50 MHz core decodes Code 128, QR, and DataMatrix streams in real time, while USB HID avoids driver installation on Windows, macOS, and Linux. The 51 GPIO supports LCD feedback, beeper, vibration motor, and trigger switch. The 64-LQFP package and BDM debug interface make firmware development and field reprogramming straightforward.
Recommended
Industrial USB Sensor Hubs
The MCF51JM32EVLH integrates USB hub-host capability with I2C/SPI sensor interfacing, making it suitable for industrial multi-sensor USB hubs that aggregate environmental, motion, or process data. The ColdFire V1 core at 50 MHz polls I2C/SPI sensors and publishes aggregated readings over USB CDC or vendor-class protocols. CAN connectivity allows bridging to industrial CAN networks. The PWM outputs drive indicator LEDs and buzzer alarms, while the LVD protects against brownout in factory environments with unstable 24V rails.
Recommended
Recommended Products Summary
Engineering reference data for MCF51JM32EVLH — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | MCF51JM32VLH | MCF51JM128VLH | MCF51JM64VLH | MCF51JM128EVLH | MCF51AC256ACLKE |
|---|---|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Package | 64-LQFP (10x10 mm) | 64-LQFP (10x10 mm) - same | 64-LQFP (10x10 mm) - same | 64-LQFP (10x10 mm) - same | 64-LQFP (10x10 mm) - same | 80-LQFP - different footprint |
| Core Processor | ColdFire V1 | ColdFire V1 | ColdFire V1 | ColdFire V1 | ColdFire V1 | ColdFire V1 |
| Maximum Clock Speed | 50 MHz | 50 MHz | 50 MHz | 50 MHz | 50 MHz | 50 MHz |
| Program Memory (Flash) | 32 KB | 32 KB | 128 KB | 64 KB | 128 KB | 256 KB |
| RAM Size | 16 KB | 16 KB | 16 KB | 16 KB | 16 KB | 32 KB |
| Number of I/O Pins | 51 | 51 | 51 | 51 | 51 | 70 |
| Connectivity | CAN, I2C, SCI, SPI, USB OTG | CAN, I2C, SCI, SPI, USB OTG | CAN, I2C, SCI, SPI, USB OTG | CAN, I2C, SCI, SPI, USB OTG | CAN, I2C, SCI, SPI, USB OTG | CAN, I2C, SCI, SPI, USB OTG |
Key Differentiators
- Same-family upgrade path within 64-LQFP footprint (vs MCF51JM32VLH)
- Integrated USB OTG full-speed transceiver eliminates external PHY (vs Generic 32-bit MCU without integrated USB PHY)
- Rare combination of CAN 2.0B and USB OTG on a 32-bit MCU at sub-$6 price (vs PIC32MX170F256B)
Design Notes
The MCF51JM32EVLH integrates a 3.3V USB regulator (USB_VDD) powered from VREGIN (5V VBUS). Decouple VREGIN with a 4.7uF ceramic and VDD pins with 100nF + 4.7uF bulk caps. The on-chip LVD protects Flash during brownout - configure LVDRE (LVD reset enable) in SOPT1 for reliable cold-start behavior in industrial 24V rail systems that experience voltage sags.
Route the USB DP/DM traces as a 90-ohm differential pair matched within 10 mil tolerance, and keep them clear of the XTAL traces to avoid coupling noise. Place the 27pF USB load capacitors close to the device on DP/DM lines. For EMC, add a common-mode choke on VBUS for industrial applications.
Do not exceed the absolute maximum VDD rating. The 16 KB RAM has USB endpoint buffer overlays that reduce available memory when USB is enabled - reserve at least 1.5 KB for endpoint FIFOs. The BDM/BKGD pin is required for in-circuit programming - never tie to VDD or leave floating during reset. The OSC_RANGE bit must be configured for the actual external crystal load capacitance to achieve reliable USB SOF timing.
Compliance Information
RoHS compliant per NXP product page. Not AEC-Q100 qualified - for automotive applications choose AEC-Q100 qualified Kinetis products. The MCF51JM family has reached NRND status per NXP lifecycle notices.