PIC32MK0512MCJ064-E/R4X - 32-bit MCU, 512KB Flash, 64-VQFN | Microchip
MPN: PIC32MK0512MCJ064-E/R4X ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $9.85 | $9.85 |
| 10 | $9.1 | $91.00 |
| 100 | $8.35 | $835.00 |
| 500 | $7.5 | $3,750.00 |
| 1,000 | $6.85 | $6,850.00 |
PIC32MK0512MCJ064-E/R4X Overview
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (Flash), working memory (SRAM), and a rich peripheral set into one IC. Within the taxonomy of semiconductors, an MCU sits under microcontrollers -> integrated circuits -> semiconductors, and the PIC32MK series targets real-time deterministic control where DSP and floating-point math accelerate closed-loop algorithms. The microAptiv core plus IEEE 754 single/double-precision FPU distinguishes the PIC32MK family from simpler Cortex-M0/M3 alternatives.
Key features include dedicated motor-control PWM modules, multiple CAN-FD controllers, four 64-bit accumulators with single-cycle MAC, op-amps and analog comparators on-chip, and 12-bit ADCs with up to 28 channels. The PIC32MK core supports MicroMIPS mode for ~40% smaller code size, and ECC on Flash improves reliability in safety-conscious applications. The 64-VQFN package exposes rich I/O while keeping board footprint compact at 9x9 mm.
The integrated op-amps, comparators, and PWM make the device well-suited for sensorless FOC motor drives, reducing external analog stages. CAN-FD connectivity supports modern automotive and industrial fieldbus protocols. Together, these features let designers replace multiple analog components and external communication ICs with one MCU.
Typical applications include BLDC/PMSM motor control, industrial automation, IIoT edge nodes, digital power conversion, and multi-channel sensor hubs. The wide operating voltage and -40C to +125C range also suit harsh industrial environments.
When designing with this device, allocate the FPU for field-oriented control math to cut loop time, and use ECC-aware linker files to take advantage of the Flash ECC. Be mindful that the E/R4X variant is rated 80 MHz at the extended 125C temperature grade, while the I-grade runs full 120 MHz at 85C.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.
Drop-in alternatives for PIC32MK0512MCJ064-E/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-E/R4X (same form factor and footprint) — differing in ADC, Operating Temperature, Core Architecture, FPU, Package.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC32MK0512MCJ064-I/R4X
✅ Drop-In✓ In Stock
$5.58 / Unit
View Datasheet →PIC32MK0512MCJ064T-I/R4X
✅ Drop-In✓ In Stock
$5.59 / Unit
View Datasheet →PIC32MK0512MCF064-E/PT
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$5.18 / Unit
View Datasheet →PIC32MK0512MCJ064-E/R4X Maximum Ratings & Electrical Characteristics
| Core | MIPS32 microAptiv (32-bit) |
| Maximum Clock Frequency | 120 MHz (E grade 80 MHz at +125C) |
| FPU | IEEE 754 single and double precision |
| DSP Extensions | MAC, four 64-bit accumulators, MicroMIPS mode |
| Program Flash | 512 KB with ECC |
| SRAM | 64 KB |
| Operating Voltage | 2.3 V to 3.6 V |
| Operating Temperature | -40C to +125C (E grade) |
| Package | 64-pin VQFN (9x9 mm) |
| Mounting Type | Surface Mount |
| Communication Interfaces | CAN-FD, UART, SPI, I2C, USB |
| ADC | 12-bit, multiple channels |
| Motor Control PWM | Dedicated PWM modules with fault inputs |
| On-chip Analog | Op-amps and comparators |
| RoHS Status | Compliant |
| Lead-Free | Yes |
PIC32MK0512MCJ064-E/R4X 64-pin vqfn (9x9 mm) Pin Configuration Guide
Pin configuration for PIC32MK0512MCJ064-E/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-E/R4X.
Refer to the datasheet for full pin configuration.
Typical Applications
PIC32MK0512MCJ064-E/R4X is suitable for 6 applications: BLDC / PMSM Motor Control, Industrial Automation Controllers, Industrial IoT Edge Nodes, Digital Power Conversion (SMPS), Automotive Body and Chassis Modules, Multi-Channel Sensor Hubs.
BLDC / PMSM Motor Control
The PIC32MK0512MCJ064-E/R4X is purpose-built for sensorless field-oriented control (FOC) of BLDC and PMSM motors. Its integrated op-amps interface directly to shunt current sensors, while the 12-bit ADC samples phase voltages and currents synchronously to the dedicated PWM modules with hardware fault inputs. The 120 MHz MIPS32 microAptiv core with IEEE 754 FPU executes Park/Clarke transforms and PI loops in under 5 microseconds, enabling FOC switching frequencies above 20 kHz. According to the PIC32MK family datasheet DS60001570D, the motor-control PWM supports complementary outputs with dead-band insertion, center-aligned mode, and ADC trigger placement, eliminating the need for an external gate driver MCU.
Recommended
Industrial Automation Controllers
In PLC and industrial automation designs, the PIC32MK0512MCJ064-E/R4X serves as the central logic controller combining CAN-FD fieldbus, UART, SPI, and I2C interfaces on a single chip. The 512 KB ECC Flash accommodates ladder-logic interpreters or IEC 61131-3 runtimes plus bootloaders, while the 64 KB SRAM supports Modbus TCP and EtherNet/IP protocol buffers. The -40C to +125C operating range meets IEC 60068 industrial environmental standards for cabinet-mounted controllers. Hardware crypto accelerators and ECC-protected Flash improve reliability for safety-conscious factory-automation applications where bit-flips could cause incorrect actuator commands.
Recommended
Industrial IoT Edge Nodes
The PIC32MK0512MCJ064-E/R4X powers IIoT edge nodes that aggregate sensor data and forward it to cloud gateways over CAN-FD or serial links. The 64 KB SRAM hosts TLS/DTLS handshake buffers and queueing, while the FPU accelerates FFT and RMS computations on vibration and current waveforms for predictive-maintenance analytics. The 512 KB Flash stores MQTT-SN, LwM2M, or OPC-UA Pub/Sub stacks with room for application firmware. Hardware ECC on Flash protects configuration data against soft errors common in electrically noisy industrial cabinets, and the -40C to +125C rating matches outdoor and cabinet-mounted deployment requirements.
Recommended
Digital Power Conversion (SMPS)
Digital power supplies use the PIC32MK0512MCJ064-E/R4X to implement closed-loop control of PFC, LLC, and phase-shift full-bridge converters. The high-resolution PWM and 12-bit ADC with sub-microsecond conversion enable voltage-mode and average-current-mode control loops at 100 kHz switching frequency. The FPU executes digital compensator math (type-II/type-III) with negligible CPU overhead, freeing cycles for housekeeping and telemetry. CAN-FD exposes telemetry rails to a system supervisor, and the integrated comparators implement cycle-by-cycle current protection. The 64-pin VQFN (9x9 mm) package supports 1-3 kW PSU form factors with adequate copper heatsinking.
Recommended
Automotive Body and Chassis Modules
Although not AEC-Q100 qualified, the PIC32MK0512MCJ064-E/R4X is used in non-safety automotive body and chassis modules where its -40C to +125C range, CAN-FD controllers, and ECC Flash meet functional requirements. The MCJ-grade motor-control peripherals drive seat adjusters, mirror actuators, and HVAC flaps directly via integrated PWM and op-amps, replacing external gate-driver logic. CAN-FD connectivity bridges to the vehicle backbone, while the 512 KB Flash stores calibration tables and the 64 KB SRAM buffers diagnostic messages per UDS protocol. For safety-critical applications, designers should migrate to AEC-Q100 qualified PIC32MK variants.
Recommended
Multi-Channel Sensor Hubs
Sensor hubs aggregate data from multiple analog and digital sensors and the PIC32MK0512MCJ064-E/R4X provides ample ADC channels, op-amps, and serial interfaces for this role. The 12-bit ADC with multiple S&H channels supports simultaneous sampling of multi-axis accelerometers, load cells, and thermocouples through the integrated op-amps. CAN-FD or USB exposes aggregated data to a host processor, while the 64 KB SRAM buffers sensor data between acquisitions. The FPU executes sensor fusion algorithms such as complementary or Kalman filters in real time at low CPU overhead, and the 512 KB Flash supports device drivers plus on-board calibration tables.
Recommended
Recommended Products Summary
Engineering reference data for PIC32MK0512MCJ064-E/R4X — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC32MK0512MCJ064-I/R4X | PIC32MK0512MCJ064T-I/R4X | PIC32MK0512MCF064-E/PT |
|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 64-VQFN (9x9 mm) | 64-VQFN (9x9 mm) | 64-VQFN (9x9 mm) | 64-pin TQFP |
| Core | MIPS32 microAptiv 32-bit with FPU | MIPS32 microAptiv 32-bit with FPU | MIPS32 microAptiv 32-bit with FPU | MIPS32 microAptiv 32-bit with FPU |
| Maximum Frequency | 120 MHz (80 MHz at +125C) | 120 MHz | 120 MHz | 120 MHz (80 MHz at +125C) |
| Flash Memory | 512 KB with ECC | 512 KB with ECC | 512 KB with ECC | 512 KB with ECC |
| SRAM | 64 KB | 64 KB | 64 KB | 64 KB |
| Temperature Grade | -40C to +125C (Extended) | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +125C (Extended) |
| Motor Control Peripherals | PWM, op-amps, comparators | PWM, op-amps, comparators | PWM, op-amps, comparators | General-purpose (no motor-control PWM/op-amp) |
| CAN-FD | Yes | Yes | Yes | Yes |
Key Differentiators
- Integrated motor-control analog front-end (op-amps + comparators) (vs PIC32MK0512MCF064-E/PT)
- Higher-temperature -40C to +125C operation at 80 MHz (vs PIC32MK0512MCJ064-I/R4X)
- Compact 64-VQFN (9x9 mm) package with rich peripheral set (vs PIC32MK0512GPE064T-E/PT)
Design Notes
The 64-VQFN (9x9 mm) package dissipates MCU power through the exposed thermal pad, which MUST be soldered to a PCB thermal land of at least the same footprint with thermal vias connecting to inner copper layers. Estimated: at 120 MHz with peripheral activity, core current is approximately 35-50 mA from a 3.3 V supply, so total dissipation is around 120-170 mW. Without the thermal pad soldered, junction temperature can exceed +125C under high ambient loads and trigger thermal shutdown. Use a 4x4 via array of 0.3 mm drilled vias under the pad for adequate conduction.
Place decoupling capacitors as close as possible to every VDD/VDDIO pin pair: a 100 nF ceramic per pin plus a bulk 10 uF ceramic shared across the supply rail. The 64-VQFN (9x9 mm) package requires micro-via fan-out under the thermal pad; if via-in-pad is not used, route the power pins on the outer layer with at least 0.2 mm traces. Estimated: the on-chip op-amps require very clean analog ground - split the ground plane only if you can maintain a single-point connection under the IC, otherwise use a unified ground with careful ADC trace routing.
A common mistake is configuring the PPS (Peripheral Pin Select) registers without first unlocking the PPS sequence - the device silently ignores PPS writes. Another pitfall is enabling ECC on Flash without the ECC-aware startup code in the linker script, which can cause unexpected NMI resets at boot. Estimated: clock switching without the WAIT command sequence will hang the PLL. Always use the Harmony Configurator or MCC generated initialization code, and verify the DEVCFG0/1/2/3 fuse settings match the chosen -E grade 80 MHz at +125C operation.
Compliance Information
RoHS and lead-free confirmed per Microchip product page. Not AEC-Q100 qualified - select AEC-Q100 graded variants for automotive safety applications. Halogen-free status not explicitly stated in the verified web data.
