MCF51JM32EVLH - ColdFire V1 32KB Flash MCU 64-LQFP | NXP
MPN: MCF51JM32EVLH ✗ Cuối đờiMCF51JM32EVLH Tóm tắt
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.
Bộ thay thế dễ dàng lắp đặt cho MCF51JM32EVLH — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với MCF51JM32EVLH (cùng hình factor và footprint) — khác nhau ở Package, Series.
MCF51JM32VLH
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
MCF51JM128VLH
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
MCF51JM64VLH
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →MCF51JM128EVLH
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →MCF51AC256ACLKE
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
MCF51JM32EVLH Tỷ lệ tối đa & tính chất điện
| 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 |
| Hộp | 64-LQFP (10x10 mm) |
| Kiểu lắp đặt | Surface Mount |
| Packaging | Tray |
| USB Transceiver | Integrated (full-speed OTG, no external PHY) |
| Debug Interface | JTAG/BDM |
| Trạng thái RoHS | Compliant |
Cấu hình chân MCF51JM32EVLH
| Chân 1 | PTC0 — General-purpose I/O / TPM1 channel 0 |
| Chân 2 | PTC1 — General-purpose I/O / TPM1 channel 1 |
| Chân 3 | PTC2 — General-purpose I/O / TPM1 channel 2 |
| Chân 4 | PTC3 — General-purpose I/O / TPM1 channel 3 |
| Chân 5 | PTC4 — General-purpose I/O / TPM2 channel 0 |
| Chân 6 | PTC5 — General-purpose I/O / TPM2 channel 1 |
| Chân 7 | PTC6 — General-purpose I/O / TPM2 channel 2 |
| Chân 8 | PTC7 — General-purpose I/O / TPM2 channel 3 |
| Chân 9 | VSS — Ground |
| Chân 10 | VDD — Supply voltage (core and I/O) |
| Chân 11 | PTB0 — General-purpose I/O |
| Chân 12 | PTB1 — General-purpose I/O |
| Chân 13 | PTB2 — General-purpose I/O |
| Chân 14 | PTB3 — General-purpose I/O |
| Chân 15 | VSS — Ground |
| Chân 16 | PTA0 — General-purpose I/O / SCI1 RX |
| Chân 17 | PTA1 — General-purpose I/O / SCI1 TX |
| Chân 18 | PTA2 — General-purpose I/O / SCL |
| Chân 19 | PTA3 — General-purpose I/O / SDA |
| Chân 20 | PTA4 — General-purpose I/O |
| Chân 21 | PTA5 — General-purpose I/O |
| Chân 22 | PTA6 — General-purpose I/O |
| Chân 23 | PTA7 — General-purpose I/O / wakeup |
| Chân 24 | BKGD — Background debug mode |
| Chân 25 | RESET — External reset input, active-low |
| Chân 26 | PTA8 — General-purpose I/O |
| Chân 27 | VDD — Supply voltage |
| Chân 28 | PTD0 — General-purpose I/O |
| Chân 29 | PTD1 — General-purpose I/O |
| Chân 30 | PTD2 — General-purpose I/O |
| Chân 31 | PTD3 — General-purpose I/O |
| Chân 32 | PTD4 — General-purpose I/O |
| Chân 33 | PTD5 — General-purpose I/O |
| Chân 34 | PTD6 — General-purpose I/O |
| Chân 35 | PTD7 — General-purpose I/O |
| Chân 36 | PTE0 — General-purpose I/O / CAN TX |
| Chân 37 | PTE1 — General-purpose I/O / CAN RX |
| Chân 38 | PTE2 — General-purpose I/O |
| Chân 39 | PTE3 — General-purpose I/O |
| Chân 40 | PTE4 — General-purpose I/O |
| Chân 41 | PTE5 — General-purpose I/O / PWM |
| Chân 42 | PTE6 — General-purpose I/O / PWM |
| Chân 43 | PTE7 — General-purpose I/O |
| Chân 44 | VSS — Ground |
| Chân 45 | VDD — Supply voltage |
| Chân 46 | USB_VBUS — USB VBUS detect input |
| Chân 47 | USB_DP — USB D+ data line |
| Chân 48 | USB_DM — USB D- data line |
| Chân 49 | USB_VDD — USB internal regulator output (3.3 V) |
| Chân 50 | VREGIN — USB regulator input (5 V from VBUS) |
| Chân 51 | XTAL1 — External crystal / clock input |
| Chân 52 | XTAL2 — External crystal output |
| Chân 53 | PTA9 — General-purpose I/O |
| Chân 54 | PTA10 — General-purpose I/O |
| Chân 55 | PTA11 — General-purpose I/O |
| Chân 56 | PTA12 — General-purpose I/O |
| Chân 57 | PTA13 — General-purpose I/O |
| Chân 58 | PTA14 — General-purpose I/O |
| Chân 59 | PTA15 — General-purpose I/O |
| Chân 60 | VSS — Ground |
| Chân 61 | TCLK — Timer clock input / PWM |
| Chân 62 | PTF0 — General-purpose I/O |
| Chân 63 | PTF1 — General-purpose I/O |
| Chân 64 | VDD — Supply voltage |
Ứng dụng tiêu biểu
MCF51JM32EVLH phù hợp cho 6 Áp dụngs: 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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho MCF51JM32EVLH — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | 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 |
Bảo phân biệt quan trọng
- Same-family upgrade path within 64-LQFP footprint (vsMCF51JM32VLH)
- Integrated USB OTG full-speed transceiver eliminates external PHY (vsGeneric 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 (vsPIC32MX170F256B)
Ghi chú thiết kế
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.
Thông tin tuân thủ
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.