PIC32MK0512MCJ064-I/R4X - 120MHz MCU 512KB Flash 64-VQFN | Microchip
MPN: PIC32MK0512MCJ064-I/R4X ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $8.42 | $8.42 |
| 10 | $7.61 | $76.10 |
| 100 | $6.79 | $679.00 |
| 500 | $6.12 | $3,060.00 |
| 1,000 | $5.58 | $5,580.00 |
PIC32MK0512MCJ064-I/R4X Overview
What is a PIC32MK microcontroller? The PIC32MK family from Microchip is a 32-bit microcontroller line based on the MIPS32 microAptiv core. The family sits within the broader taxonomy of microcontroller -> embedded controller -> MCU -> 32-bit MCU -> MIPS-based MCU -> Microchip PIC32. The microAptiv core supports MicroMIPS compressed instruction mode for up to 40% smaller code size, includes a single-precision hardware Floating Point Unit (FPU), four 64-bit accumulators, and a single-cycle MAC that supports saturating and fractional math - features that position PIC32MK at the high end of the PIC32 portfolio alongside dsPIC signal controllers.
Key features of the PIC32MK0512MCJ064 include 512 KB of Flash with Error Correction Code (ECC), 64 KB of SRAM, four general-purpose 16-bit timers, and a 12-bit ADC module with up to 30 analog input channels suited for multi-phase motor current sampling. The device integrates CAN-FD controllers, multiple SPI/I2S/I2C interfaces (using updated Host/Client terminology in the latest datasheet revision), five UART modules, and a motor-control PWM peripheral set. The 64-pin VQFN package with exposed pad provides good thermal dissipation for the 120 MHz operation.
Technically, the PIC32MK architecture leverages a Harvard memory topology with separate buses for instruction and data fetch, allowing simultaneous access and improved throughput versus Von Neumann designs. The hardware FPU accelerates IEEE-754 single- and double-precision math, which simplifies control-loop code for vector control of three-phase motors and supports sensorless field-oriented control (FOC) algorithms without software emulation overhead. ECC on the Flash reduces soft-error risk in industrial environments, while the four 64-bit accumators and DSP extensions accelerate FIR/IIR filters and PID calculations.
Typical applications include BLDC and PMSM motor drives, industrial automation PLCs, multi-channel data acquisition systems, building automation controllers, and Industrial Internet of Things (IIoT) edge nodes. The combination of CAN-FD, motor-control PWMs, and 30 ADC channels is specifically engineered for triple-axis or multi-axis motor control where sensor feedback, commutation timing, and inter-node communication must converge on a single device.
When designing with this MCU, confirm that the 9x9 mm VQFN PCB footprint and the I-grade temperature range match your application's environment. For debug, the PIC32MK is supported by Microchip's MPLAB X IDE and programmers such as ICD4, PK4, and the older ICD3 - power the target externally during debug sessions to avoid brown-out glitches.
This page synthesizes distributor pricing, drop-in alternative variants within the same PIC32MK family, and practical design notes not found in the standalone manufacturer datasheet.
Drop-in alternatives for PIC32MK0512MCJ064-I/R4X — 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 PIC32MK0512MCJ064-I/R4X (same form factor and footprint) — differing in Operating Temperature, ADC, FPU, Package, Core Architecture.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC32MK0512MCJ064T-I/R4X
✅ Drop-In✓ In Stock
$5.59 / Unit
View Datasheet →PIC32MK0512MCJ064-E/R4X
✅ Drop-In✓ In Stock
$6.85 / Unit
View Datasheet →PIC32MK0256MCJ064T-E/R4X
✅ Drop-In✓ In Stock
$3.74 / Unit
View Datasheet →PIC32MK0256MCJ064-I/PT
✅ Drop-In✓ In Stock
$2.47 / Unit
View Datasheet →PIC32MK0512MCJ064-E/PT
✅ Drop-In📋 Reference alternative (not in catalog)
PIC32MK0512GPG064-E/R4X
✅ Drop-In✓ In Stock
$5.1 / Unit
View Datasheet →PIC32MK0512MCJ064-I/R4X Maximum Ratings & Electrical Characteristics
| Core | MIPS32 microAptiv |
| Core Architecture | 32-bit RISC |
| Maximum CPU Clock | 120 MHz |
| Program Memory (Flash) | 512 KB (512K x 8) |
| SRAM | 64 KB |
| Flash ECC | Yes |
| FPU | Single and double precision |
| DSP | Single-cycle MAC, four 64-bit accumulators |
| MicroMIPS Compressed Mode | Yes (up to 40% smaller code size) |
| ADC | 12-bit, up to 30 channels |
| DMA Channels | 8 |
| CAN-FD | Yes |
| Communication Interfaces | SPI, I2S, I2C, UART |
| Package | 64-pin VQFN (9x9 mm) |
| Operating Temperature | -40C to +85C (Industrial) |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
| Lead-Free | Yes |
| Timer Counters | 4 x 16-bit timers |
PIC32MK0512MCJ064-I/R4X 64-pin vqfn (9x9 mm) Pin Configuration Guide
Pin configuration for PIC32MK0512MCJ064-I/R4X (64-pin vqfn (9x9 mm) package). This digital IC includes GPIO, communication interfaces (UART, SPI, I2C), and power pins. Refer to the manufacturer datasheet for alternate pin functions and configuration options. Essential for embedded system design and PCB layout.
No detailed pinout data available for PIC32MK0512MCJ064-I/R4X.
Refer to the datasheet for full pin configuration.
Typical Applications
PIC32MK0512MCJ064-I/R4X is suitable for 6 applications: BLDC / PMSM Motor Control, Industrial Automation Controllers, Multi-Channel Data Acquisition Systems, Industrial IoT (IIoT) Edge Nodes, Building Automation Controllers, Power Conversion and Inverter Control.
BLDC / PMSM Motor Control
The PIC32MK0512MCJ064-I/R4X is engineered for high-performance three-phase motor control, executing field-oriented control (FOC) loops at 120 MHz with hardware FPU in microseconds. Its integrated motor-control PWM module provides complementary outputs with programmable dead-band for safe inverter switching of BLDC and PMSM motors, while the 12-bit ADC with up to 30 channels simultaneously samples three phase currents plus DC-bus voltage without CPU intervention. The 8 DMA channels offload repetitive register-to-memory transfers, freeing the core for control math. With 512 KB Flash it can host full motor-control libraries including sensorless observers and CANopen stacks, and the industrial temperature range supports cabinet-mounted drives in factory automation.
Recommended
Industrial Automation Controllers
In industrial PLC and distributed-control applications, the PIC32MK0512MCJ064-I/R4X provides deterministic 120 MHz performance for ladder-logic and IEC 61131-3 runtimes while its CAN-FD interfaces connect to industrial sensor/actuator networks at 5 Mbps. The 512 KB Flash accommodates full protocol stacks including CANopen, Modbus, and EtherCAT slave firmware, and ECC protection prevents soft-error-induced firmware corruption that could create unsafe actuator commands. The 64-VQFN (9x9 mm) footprint supports compact DIN-rail-mounted controller PCBs, and the MIPS32 microAptiv core with hardware FPU accelerates control-loop math for proportional-integral-derivative (PID) loops regulating temperature, flow, and pressure in process automation.
Recommended
Multi-Channel Data Acquisition Systems
With up to 30 channels of 12-bit ADC and 8 DMA channels, the PIC32MK0512MCJ064-I/R4X can continuously sample multiple analog sensors without burdening the CPU. The 120 MHz MIPS32 core performs real-time filtering and FFT analysis on the streaming data, and the 64 KB SRAM provides buffer space for time-series captures. Hardware ECC on the 512 KB Flash protects calibration constants from soft errors, while the wide 64-pin VQFN package exposes enough GPIO for status LEDs, digital I/O expansion, and trigger inputs. Typical deployments include vibration monitoring for predictive maintenance, multi-zone temperature profiling, and power-quality analyzers in industrial IIoT edge nodes.
Recommended
Industrial IoT (IIoT) Edge Nodes
The PIC32MK0512MCJ064-I/R4X is well suited for IIoT edge gateways because it combines a 120 MHz compute core, CAN-FD, and ample Flash for secure communication stacks including TLS and MQTT-SN clients. The ECC-protected 512 KB Flash reliably stores cryptographic keys and OTA update images, and the 64 KB SRAM supports TLS session buffers. Its 64-VQFN footprint fits compact edge modules, and the industrial temperature range allows deployment in factory cabinets, outdoor enclosures, and machine tool bays. The microAptiv core's hardware FPU speeds anomaly-detection algorithms running on edge sensor streams before transmitting alerts over CAN-FD to upstream controllers.
Recommended
Building Automation Controllers
Building automation systems require reliable multi-protocol controllers for HVAC, lighting, and access subsystems. The PIC32MK0512MCJ064-I/R4X provides the 120 MHz processing headroom to run BACnet, Modbus, and CAN-FD stacks concurrently while its 12-bit ADC samples temperature, humidity, and CO2 sensor outputs. The 64-VQFN package suits compact wall-mount controllers, and ECC Flash ensures that firmware remains uncorrupted across years of continuous operation in unattended building equipment rooms. With 30 ADC channels, a single MCU can aggregate inputs from an entire floor's worth of environmental sensors, simplifying cabinet layout and reducing bill-of-materials cost.
Recommended
Power Conversion and Inverter Control
The PIC32MK0512MCJ064-I/R4X drives digital-controlled power converters including solar inverters, UPS systems, and AC-DC rectifiers thanks to its high-resolution PWM and fast ADC sampling. The 120 MHz MIPS32 core with FPU executes digital control loops - average-current mode control, peak-current mode control, and space-vector modulation - within microseconds, while the 12-bit ADC with up to 30 channels senses input/output voltages, inductor currents, and temperature sensors. CAN-FD enables the inverter to report telemetry to a master controller in real time, and ECC Flash preserves critical safety parameters such as over-current thresholds across the product lifetime. The 64-VQFN footprint fits compact power-module form factors common in distributed energy resources.
Recommended
Recommended Products Summary
Engineering reference data for PIC32MK0512MCJ064-I/R4X — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC32MK0512MCJ064T-I/R4X | PIC32MK0512MCJ064-E/R4X | PIC32MK0256MCJ064T-E/R4X | PIC32MK0512GPG064-E/R4X | PIC32MK0256MCJ064-I/PT |
|---|---|---|---|---|---|---|
| Package | 64-VQFN (9x9 mm) | 64-VQFN (9x9 mm) - same | 64-VQFN (9x9 mm) - same | 64-VQFN (9x9 mm) - same | 64-VQFN (9x9 mm) - same | 64-TQFP - pin-compatible adapter |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core | MIPS32 microAptiv, 120 MHz | MIPS32 microAptiv, 120 MHz | MIPS32 microAptiv, 120 MHz | MIPS32 microAptiv, 120 MHz | MIPS32 microAptiv, 120 MHz | MIPS32 microAptiv, 120 MHz |
| Flash | 512 KB ECC | 512 KB ECC | 512 KB ECC | 256 KB ECC | 512 KB ECC | 256 KB ECC |
| SRAM | 64 KB | 64 KB | 64 KB | 64 KB | 64 KB | 64 KB |
| Motor-Control PWM | Yes | Yes | Yes | Yes | No (GPG variant) | Yes |
| CAN-FD | Yes | Yes | Yes | Yes | Yes | Yes |
| Temperature Grade | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +125C (Extended) | -40C to +125C (Extended) | -40C to +125C (Extended) | -40C to +85C (Industrial) |
| Qty-1 Price (USD) | 8.42 | 8.42 | 9.10 | 7.85 | 8.05 | 7.50 |
Key Differentiators
- Only 64-VQFN variant with both ECC Flash AND motor-control PWM in industrial temperature grade (vs PIC32MK0512GPG064-E/R4X)
- Largest Flash in MCJ 64-VQFN family at industrial temperature (vs PIC32MK0256MCJ064T-E/R4X)
- Extended-temperature compatible drop-in replacement path (vs PIC32MK0512MCJ064-E/R4X)
Design Notes
The 64-VQFN (9x9 mm) package exposes a thermal pad that must be soldered to a copper pour of at least 25 mm^2 on the top layer and connected to internal ground planes with multiple thermal vias for 120 MHz operation. At full 120 MHz CPU clock and high peripheral activity, junction temperature can rise significantly; reference Microchip AN2584 for thermal modeling of VQFN packages. Estimated: at typical 3.3V core supply, 120 MHz core draw of approximately 60 mA gives 200 mW - well within the thermal envelope when the exposed pad is properly soldered. Insufficient thermal vias will cause the silicon die to throttle or trigger thermal shutdown in enclosed cabinets.
Decouple the 64-VQFN power pins with a 0.1 uF X7R ceramic capacitor placed within 3 mm of each VDDCORE and VDDIO pin pair, plus a bulk 4.7 uF tantalum or ceramic capacitor at the regulator output. Route the 12-bit ADC analog supply (AVDD) separately from the digital supply with a ferrite bead or filter inductor, and place the AVSS pin star-grounded to the analog ground plane. Reference Microchip AN1316 for PIC32 layout guidelines including the requirement to keep the 32 kHz crystal traces short and surrounded by ground pour to avoid oscillator start-up failures.
Configuration bits must be programmed before the device will execute user code; unprogrammed configuration can cause the MCU to appear dead despite valid power and clock. The PIC32MK0512MCJ064-I/R4X also requires the I/O pins to be unlocked via the CFGCON register before SFR changes; attempting to write to PPS registers without unlock will silently fail. Avoid relying solely on the internal RC oscillator for CAN-FD timing - use an external crystal for bus stability because CAN-FD requires accurate clock for bit timing. Finally, do not exceed 5V on any 5V-tolerant I/O pin even briefly during hot-plug events.
When routing the motor-control PWM outputs to gate drivers, place series gate resistors (10-100 ohm) close to the MCU to dampen transmission-line reflections on cables longer than 50 mm. For CAN-FD bus signals, use twisted-pair cabling with 120 ohm termination at both ends and keep stub lengths below 30 mm to maintain signal integrity at 5 Mbps. Reference Microchip AN2283 for CAN-FD physical-layer design, including recommendations for board-to-board isolation using digital isolators such as the ISO1042.
Compliance Information
RoHS and lead-free compliant per Microchip product page; AEC-Q100 not qualified (use automotive-grade dsPIC or PIC32MK variants if needed). Halogen-free status not explicitly stated in the verified data - defaulting to unknown.
