PIC32MK0256MCJ064T-I/R4X - 120MHz MCU, 256KB Flash, 64-VQFN | Microchip
MPN: PIC32MK0256MCJ064T-I/R4X ✓ Hoạt độngPIC32MK0256MCJ064T-I/R4X Tóm tắt
A 32-bit microcontroller (MCU) is an integrated circuit combining a 32-bit processor core, program memory (Flash), data memory (SRAM), and a configurable peripheral set on a single die. MCUs sit at the top of the embedded computing hierarchy and form the control plane of nearly every electronic product, from household appliances to industrial robots. The PIC32MK family specifically layers DSP extensions, hardware CAN-FD, and high-resolution motor-control PWMs on top of the microAptiv core for real-time control workloads.
Differentiating features of the PIC32MK0256MCJ064T-I/R4X include its 120 MHz core with hardware multiply-accumulate (MAC) and single-precision floating-point unit (FPU), four 64-bit accumulators supporting fractional and saturating math, a 12-bit ADC with up to 28 channels and 4 dedicated Sample-and-At-Hold amplifiers for simultaneous motor-phase sampling, and integrated CAN-FD controllers compliant with ISO 11898-1. The 256 KB ECC-protected Flash with pre-fetch cache and 64 KB SRAM support deterministic execution of complex control loops. The 64-VQFN (9x9) package provides a low-thermal-resistance platform (theta_JA in the low 20s C/W) suitable for space-constrained motor-drive PCBs.
Typical applications include field-oriented control (FOC) of PMSM and BLDC motors, multi-axis stepper and servo drives, industrial PLC modules with CAN-FD backbones, and IIoT edge nodes with on-board signal conditioning. Design considerations center on proper thermal relief for the exposed pad, decoupling close to the VDD/VSS pairs, and using the integrated op-amps to eliminate external current-sense circuitry for cost and BOM reduction.
Bộ thay thế dễ dàng lắp đặt cho PIC32MK0256MCJ064T-I/R4X — 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 PIC32MK0256MCJ064T-I/R4X (cùng hình factor và footprint) — khác nhau ở Package, Operating Temperature, CAN-FD, Core, Core Architecture.
PIC32MK0256MCJ064T-E/R4X
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PIC32MK0256MCJ064T-I/R4X Tỷ lệ tối đa & tính chất điện
| Core | MIPS32 microAptiv |
| Core Architecture | 32-bit RISC with FPU and DSP extensions |
| Maximum CPU Frequency | 120 MHz |
| Program Memory (Flash) | 256 KB (256K x 8) with ECC |
| Data Memory (SRAM) | 64 KB |
| Operating Voltage Range | 2.3 V to 3.6 V |
| Hộp | 64-VQFN (9x9 mm) |
| Kiểu lắp đặt | Surface Mount |
| Nhiệt độ hoạt động | -40 C to +85 C (Industrial) |
| ADC | 12-bit, up to 28 channels with 4 dedicated S&H |
| PWM Outputs | Multiple high-resolution PWM channels |
| CAN | CAN-FD controllers |
| DMA | Yes (multi-channel) |
| Trạng thái RoHS | Compliant |
Cấu hình chân PIC32MK0256MCJ064T-I/R4X
| Chân 1 | OSC1/CLKI/RC0 — Crystal oscillator input / external clock |
| Chân 2 | OSC2/CLKO/RC1 — Crystal oscillator output / peripheral pin |
| Chân 3 | RC2 — General I/O / remappable peripheral |
| Chân 4 | RC3 — General I/O / remappable peripheral |
| Chân 5 | RC4 — General I/O / remappable peripheral |
| Chân 6 | VSS — Ground reference |
| Chân 7 | VDD — Digital supply voltage (2.3-3.6 V) |
| Chân 8 | RC5 — General I/O / remappable peripheral |
| Chân 9 | RC6 — General I/O / remappable peripheral |
| Chân 10 | RC7 — General I/O / remappable peripheral |
| Chân 11 | RC8 — General I/O / remappable peripheral |
| Chân 12 | RC9 — General I/O / remappable peripheral |
| Chân 13 | VSS — Ground reference |
| Chân 14 | VDD — Digital supply voltage |
| Chân 15 | RA0 — General I/O / analog input |
| Chân 16 | RA1 — General I/O / analog input |
| Chân 17 | RA2 — General I/O / analog input |
| Chân 18 | RA3 — General I/O / analog input |
| Chân 19 | RA4 — General I/O / analog input |
| Chân 20 | RA5 — General I/O / analog input |
| Chân 21 | VSS — Ground reference |
| Chân 22 | AVDD — Analog supply voltage |
| Chân 23 | AVSS — Analog ground reference |
| Chân 24 | RA6 — General I/O / analog input |
| Chân 25 | RA7 — General I/O / analog input |
| Chân 26 | RB0 — General I/O / programming |
| Chân 27 | RB1 — General I/O / programming |
| Chân 28 | RB2 — General I/O / analog input |
| Chân 29 | RB3 — General I/O / analog input |
| Chân 30 | RB4 — General I/O / analog input |
| Chân 31 | RB5 — General I/O / analog input |
| Chân 32 | VSS — Ground reference |
| Chân 33 | VDD — Digital supply voltage |
| Chân 34 | RB6 — General I/O / remappable peripheral |
| Chân 35 | RB7 — General I/O / remappable peripheral |
| Chân 36 | RB8 — General I/O / remappable peripheral |
| Chân 37 | RB9 — General I/O / remappable peripheral |
| Chân 38 | RB10 — General I/O / remappable peripheral |
| Chân 39 | RB11 — General I/O / remappable peripheral |
| Chân 40 | RB12 — General I/O / remappable peripheral |
| Chân 41 | RB13 — General I/O / remappable peripheral |
| Chân 42 | RB14 — General I/O / remappable peripheral |
| Chân 43 | RB15 — General I/O / remappable peripheral |
| Chân 44 | VSS — Ground reference |
| Chân 45 | VDD — Digital supply voltage |
| Chân 46 | RD0 — General I/O / remappable peripheral |
| Chân 47 | RD1 — General I/O / remappable peripheral |
| Chân 48 | RD2 — General I/O / remappable peripheral |
| Chân 49 | RD3 — General I/O / remappable peripheral |
| Chân 50 | RD4 — General I/O / remappable peripheral |
| Chân 51 | RD5 — General I/O / remappable peripheral |
| Chân 52 | RD6 — General I/O / remappable peripheral |
| Chân 53 | RD7 — General I/O / remappable peripheral |
| Chân 54 | RD8 — General I/O / remappable peripheral |
| Chân 55 | RD9 — General I/O / remappable peripheral |
| Chân 56 | RD10 — General I/O / remappable peripheral |
| Chân 57 | RD11 — General I/O / remappable peripheral |
| Chân 58 | VSS — Ground reference |
| Chân 59 | VDD — Digital supply voltage |
| Chân 60 | RF0 — General I/O / remappable peripheral |
| Chân 61 | RF1 — General I/O / remappable peripheral |
| Chân 62 | RF2 — General I/O / remappable peripheral |
| Chân 63 | RF3 — General I/O / remappable peripheral |
| Chân 64 | RF4 — General I/O / remappable peripheral |
| Chân 65 | EP — Exposed thermal pad (must be soldered to VSS plane) |
Ứng dụng tiêu biểu
PIC32MK0256MCJ064T-I/R4X phù hợp cho 6 Áp dụngs: Field-Oriented Control (FOC) of PMSM/BLDC Motors, Industrial PLC and I/O Modules with CAN-FD, IIoT Edge Nodes with On-Board Signal Conditioning, Digital Power Conversion (PFC, LLC, Phase-Shifted Full-Bridge), Automotive Body and Chassis ECUs (CAN-FD Backbone), Robotics and Multi-Axis Servo Drives.
Field-Oriented Control (FOC) of PMSM/BLDC Motors
The PIC32MK0256MCJ064T-I/R4X is purpose-built for sensorless and sensored FOC of PMSM and BLDC motors used in HVAC blowers, e-bikes, drones, and industrial pumps. Its 120 MHz MIPS32 microAptiv core with single-precision FPU executes Clarke-Park transforms and PI current loops in well under 10 microseconds, leaving CPU headroom for CAN-FD comms and a user interface. Four dedicated 12-bit Sample-and-Hold amplifiers enable simultaneous sampling of three phase currents plus DC-bus current at the switching frequency's center point, eliminating the phase-delay errors of sequential sampling. Combined with the high-resolution PWM module offering 7.5 ns pulse-edge resolution and programmable dead-time insertion, the MCU meets the dynamic-response requirements of servo-class drives from 50 W to 5 kW.
Được đề xuất
Industrial PLC and I/O Modules with CAN-FD
For modular PLC backplanes and distributed I/O, the PIC32MK0256MCJ064T-I/R4X integrates one or more CAN-FD controllers compliant with ISO 11898-1 at data rates up to 1 Mbps, eliminating an external transceiver MCU. The 256 KB ECC Flash hosts the CANopen FD or J1939-14 stack alongside the application logic, while 64 KB SRAM holds process-image buffers without external memory expansion. The 64-VQFN 9x9 mm footprint fits on a standard 25 mm-wide DIN-rail module PCB. Hardware DMA channels offload ADC-to-memory transfers and CAN mailbox management from the CPU, freeing bandwidth for ladder-logic execution and PROFINET/EtherCAT slave-side processing on the same MCU.
Được đề xuất
IIoT Edge Nodes with On-Board Signal Conditioning
Industrial IoT edge nodes must digitize sensor data locally, make control decisions, and publish results over CAN-FD or Ethernet without cloud round-trips. The PIC32MK0256MCJ064T-I/R4X integrates op-amps, comparators, and a 12-bit ADC with up to 28 channels, enabling direct interfacing with thermocouples, RTDs, load cells, and 4-20 mA loops without external signal conditioning. The DSP extensions (four 64-bit accumulators, single-cycle MAC) accelerate on-device FFT and RMS calculations for vibration and power-quality monitoring at sample rates above 100 kHz. Industrial temperature rating (-40 C to +85 C for I grade) and integrated CAN-FD enable direct connection to factory backbones.
Được đề xuất
Digital Power Conversion (PFC, LLC, Phase-Shifted Full-Bridge)
Digitally-controlled SMPS topologies such as totem-pole PFC, LLC resonant converters, and phase-shifted full-bridges demand sub-microsecond control-loop execution. The 120 MHz PIC32MK0256MCJ064T-I/R4X core with hardware FPU executes average-current-mode control loops within 2-4 microsecond. Its high-resolution PWM module generates complementary channels with programmable dead-time and ADC trigger synchronization. The 12-bit ADC with 4 S&H channels simultaneously samples input voltage, input current, output voltage, and inductor current at the PWM center, enabling cycle-by-cycle average-current control. The 64-VQFN footprint fits inside 1U server-PSU form factors.
Được đề xuất
Automotive Body and Chassis ECUs (CAN-FD Backbone)
Modern automotive body controllers and chassis ECUs such as electric power steering, brake-by-wire, and active grille shutters require CAN-FD communications, deterministic PWM, and redundant safety monitoring. The PIC32MK0256MCJ064T-I/R4X integrates CAN-FD controllers for chassis bus connectivity, hardware PWM with fault shutdown, and a 32-bit core for diagnostic routines (UDS, OBD-II). The industrial -40C to +85C temperature grade suits under-hood environments when paired with proper thermal management; for harsher under-hood locations, the E-grade version up to +125C is recommended. Automotive-grade qualification (AEC-Q100) is not available on this part; choose a PIC32MK Q1 variant for AEC-Q100 mandates.
Được đề xuất
Robotics and Multi-Axis Servo Drives
Multi-axis robotic arms and CNC machines require synchronized motion across 4-8 axes with sub-millisecond cycle times. The PIC32MK0256MCJ064T-I/R4X drives one or two axes per MCU and daisy-chains via CAN-FD for distributed motion. The 120 MHz FPU executes trajectory planners, jerk-limited S-curves, and feed-forward compensation loops; multiple high-resolution PWM channels generate the gate signals for each axis. The on-chip 12-bit ADC with 4 Sample-and-Hold amplifiers samples all phase currents simultaneously, while integrated op-amps reduce external analog components. EtherCAT slave implementations benefit from the deterministic DMA-driven peripheral architecture.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC32MK0256MCJ064T-I/R4X — 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 | PIC32MK0256MCJ064T-E/R4X | PIC32MK0256MCJ064-I/R4X | PIC32MK0256MCJ064T-I/PT |
|---|---|---|---|---|
| Package | 64-VQFN (9x9 mm) | 64-VQFN (9x9 mm) - same | 64-VQFN (9x9 mm) - same | 64-TQFP - different package, NOT drop-in |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Maximum CPU Frequency | 120 MHz | 80 MHz | 120 MHz | 120 MHz |
| Operating Temperature | -40 C to +85 C (Industrial) | -40 C to +125 C (Extended) | -40 C to +85 C (Industrial) | -40 C to +85 C (Industrial) |
| Flash Memory | 256 KB | 256 KB | 256 KB | 256 KB |
| SRAM | 64 KB | 64 KB | 64 KB | 64 KB |
| Core / FPU | MIPS32 microAptiv + FPU | MIPS32 microAptiv + FPU | MIPS32 microAptiv + FPU | MIPS32 microAptiv + FPU |
| CAN-FD | Yes | Yes | Yes | Yes |
| ADC / S&H | 12-bit, 28-ch, 4 S&H | 12-bit, 28-ch, 4 S&H | 12-bit, 28-ch, 4 S&H | 12-bit, 28-ch, 4 S&H |
Bảo phân biệt quan trọng
- Higher CPU ceiling at industrial temperature (vsPIC32MK0256MCJ064T-E/R4X)
- 64-VQFN 9x9 mm package for space-constrained designs (vsPIC32MK0256MCJ064T-I/PT (64-TQFP))
- Tape-and-reel packaging for high-volume SMT assembly (vsPIC32MK0256MCJ064-I/R4X (tray))
Ghi chú thiết kế
Solder the exposed thermal pad (EP, pin 65) of the 64-VQFN to a continuous VSS copper pour of at least 25 mm^2. With theta_JA in the low 20s C/W on a 4-layer JEDEC test board, the 120 MHz MCU draws approximately 60 mA typical and 80 mA peak, dissipating under 0.5 W even at 3.6 V. For industrial environments near +85 C ambient, ensure PCB copper area prevents junction temperature from exceeding 125 C: TJ = TA + PD x theta_JA. Adding thermal vias under the EP lowers theta_JA by 30-40%.
Place 100 nF decoupling capacitors as close as physically possible to every VDD pin (typically 4 pins on the 64-VQFN). Add one 10 uF bulk capacitor per VDD/AVDD pair. AVDD must be driven from a low-noise LDO (such as MCP1755) - never share AVDD with digital VDD directly. Place a ferrite bead between VDD and AVDD if AVDD must share the same rail. Failure to isolate AVDD degrades ADC SNR by 6-10 dB.
Do not exceed VDD > 3.6 V. Ensure JTAG/SWD programming traces are routed with 4-mil clearance from adjacent signal lines to prevent crosstalk during debug. When using CAN-FD, the CAN bus must be terminated with 120 ohm resistors at each end; otherwise signal integrity suffers at >1 Mbps. For motor-control applications, keep the three current-sense traces matched within 5 mm to preserve simultaneous sampling accuracy of the 4-S&H ADC.
Route the crystal traces (OSC1/OSC2) as short as possible (<10 mm) and guard them with a ground pour. Keep high-speed PWM outputs (PWMxH/PWMxL) routed as differential pairs with matched lengths to prevent timing skew between high-side and low-side FETs. Place the analog input traces (ANx) away from PWM switching nodes; minimize trace capacitance on ADC inputs to keep the S&H acquisition time within the 250 ns datasheet specification.
Thông tin tuân thủ
RoHS compliant and lead-free per Microchip product page. Not AEC-Q100 qualified; for AEC-Q100 automotive variants choose a PIC32MK Q1 part number.
