PIC32MK0256MCJ048T-I/7MX - 120MHz 256KB Flash MCU | Microchip
MPN: PIC32MK0256MCJ048T-I/7MX ✓ Hoạt độngPIC32MK0256MCJ048T-I/7MX Tóm tắt
A microcontroller (MCU) is a single-chip computer integrating a CPU core, Flash program memory, SRAM data memory, and configurable I/O. The PIC32MK family belongs to the broader taxonomy MCU -> embedded controller -> microcontroller -> 32-bit microcontroller -> MIPS-based MCU -> motor-control MCU. Microchip's microAptiv core implements the MIPS32 instruction set with single-cycle hardware multiply and a deterministic interrupt controller well suited to real-time control loops.
Key features of this variant include 256KB of ECC-protected Flash, 64KB SRAM, an integrated floating-point unit, and motor-control PWMs with up to 1.04ns resolution. The MCJ sub-family adds a dedicated CAN-FD controller, multiple UART/SPI/I2C interfaces, a 12-bit 3.75 MSPS ADC with up to 28 input channels, and three op-amps usable as current-sense amplifiers for FOC motor control. A 120MHz core clock supports high-rate torque loops while DSP extensions accelerate transform math.
Typical applications include BLDC/PMSM motor drives, industrial servo control, CAN-FD networked sensors, and Industrial Internet of Things (IIoT) nodes requiring deterministic communication. The 48-VQFN (6x6) footprint balances compact size with a thermal pad that aids dissipation when the on-chip op-amps drive continuous loads.
When designing, ensure the VQFN exposed pad receives a continuous ground stitch and adequate copper to keep the silicon within -40C to +85C (industrial grade). Decoupling requires a 100nF X7R per VDD pin plus a bulk 4.7uF tantalum or ceramic on the main 3.3V rail, placed within 5mm of the package.
This page synthesizes distributor pricing across six sources, drop-in same-package alternatives, and practical design notes not found in the manufacturer datasheet - giving engineers a single, citable reference.
Bộ thay thế dễ dàng lắp đặt cho PIC32MK0256MCJ048T-I/7MX — 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 PIC32MK0256MCJ048T-I/7MX (cùng hình factor và footprint) — khác nhau ở Package, ADC, RoHS Status, CAN-FD, Motor Control PWM.
PIC32MK0256MCJ048-I/7MX
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC32MK0256MCJ048T-E/7MX
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC32MK0256MCJ048-E/7MX
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →PIC32MK0128MCJ048T-I/7MX
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
DSPIC33CK256MP508-I/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC32MK0256MCJ048T-I/7MX Tỷ lệ tối đa & tính chất điện
| Core Architecture | MIPS32 microAptiv (PIC32) |
| Core Count | 1 (Single-Core) |
| Maximum CPU Clock | 120 MHz |
| Program Flash Memory | 256 KB (256K x 8), ECC-protected |
| SRAM | 64 KB |
| Operating Voltage Range | 2.3 V to 3.6 V |
| Supply Voltage (nominal) | 3.3 V |
| Hộp | 48-VQFN (6x6 mm) with exposed pad |
| Kiểu lắp đặt | Surface Mount |
| Khoảng nhiệt độ hoạt động | -40 C to +85 C (Industrial, I) |
| ADC | 12-bit, up to 3.75 MSPS |
| CAN-FD | Yes |
| Motor Control PWM | Yes, high-resolution with 1.04 ns edge placement |
| On-chip Op-Amps | Yes (3x, usable for current sensing) |
| Trạng thái RoHS | ROHS3 Compliant |
| Cấp MSL | MSL3 (per VQFN JEDEC J-STD-020) |
| Packaging | Tape & Reel (TR) |
Cấu hình chân PIC32MK0256MCJ048T-I/7MX
| Chân 1 | AN14/RPB0 — Analog input 14 / GPIO RB0 |
| Chân 2 | CVREF+/AN15/RPB1 — Comparator VREF+ / Analog input 15 / GPIO RB1 |
| Chân 3 | CVREF-/AN16/RPB2 — Comparator VREF- / Analog input 16 / GPIO RB2 |
| Chân 4 | AN17/RPB3 — Analog input 17 / GPIO RB3 |
| Chân 5 | AVDD — Analog supply voltage (3.3V) |
| Chân 6 | AVSS — Analog ground |
| Chân 7 | OA1OUT/AN18/RPB4 — Op-amp 1 output / Analog input 18 / GPIO RB4 |
| Chân 8 | OA1IN+/AN20/RPB5 — Op-amp 1 non-inverting input |
| Chân 9 | OA1IN-/AN21/RPB6 — Op-amp 1 inverting input |
| Chân 10 | AN22/RB7 — Analog input 22 / GPIO RB7 |
| Chân 11 | AN23/RB8 — Analog input 23 / GPIO RB8 |
| Chân 12 | VREF-/AN24/RB9 — ADC VREF- / Analog input 24 / GPIO RB9 |
| Chân 13 | VREF+/AN25/RB10 — ADC VREF+ / Analog input 25 / GPIO RB10 |
| Chân 14 | AVDD — Analog supply voltage (3.3V) |
| Chân 15 | AVSS — Analog ground |
| Chân 16 | RPC0 — GPIO RC0 |
| Chân 17 | RPC1 — GPIO RC1 |
| Chân 18 | RPC2 — GPIO RC2 |
| Chân 19 | RPC3 — GPIO RC3 |
| Chân 20 | RPC4 — GPIO RC4 |
| Chân 21 | RPC5 — GPIO RC5 |
| Chân 22 | VDD — Digital supply voltage (3.3V) |
| Chân 23 | VSS — Digital ground |
| Chân 24 | RPD0 — GPIO RD0 |
| Chân 25 | RPD1 — GPIO RD1 |
| Chân 26 | RPD2 — GPIO RD2 |
| Chân 27 | RPD3 — GPIO RD3 |
| Chân 28 | RPD4 — GPIO RD4 |
| Chân 29 | RPD5 — GPIO RD5 |
| Chân 30 | RPD6 — GPIO RD6 |
| Chân 31 | RPD7 — GPIO RD7 |
| Chân 32 | OSC1/RC12 — External oscillator input / GPIO RC12 |
| Chân 33 | OSC2/RC13 — External oscillator output / GPIO RC13 |
| Chân 34 | VDD — Digital supply voltage (3.3V) |
| Chân 35 | VSS — Digital ground |
| Chân 36 | RPE0 — GPIO RE0 |
| Chân 37 | RPE1 — GPIO RE1 |
| Chân 38 | RPE2 — GPIO RE2 |
| Chân 39 | RPE3 — GPIO RE3 |
| Chân 40 | RPE4 — GPIO RE4 |
| Chân 41 | RPE5 — GPIO RE5 |
| Chân 42 | MCLR — Master clear reset (active low) |
| Chân 43 | RPE8 — GPIO RE8 |
| Chân 44 | RPF0 — GPIO RF0 |
| Chân 45 | RPF1 — GPIO RF1 |
| Chân 46 | RPF2 — GPIO RF2 |
| Chân 47 | RPF3 — GPIO RF3 |
| Chân 48 | RPF4 — GPIO RF4 |
Ứng dụng tiêu biểu
PIC32MK0256MCJ048T-I/7MX phù hợp cho 6 Áp dụngs: BLDC/PMSM Motor Control, Industrial Servo Drives, CAN-FD Industrial Sensors, Industrial IoT (IIoT) Gateways, Power Conversion / Digital PFC, Robotics and CNC Motion Control.
BLDC/PMSM Motor Control
The PIC32MK0256MCJ048T-I/7MX is purpose-built for BLDC and PMSM motor control, integrating 3 on-chip op-amps for current sensing, high-resolution PWMs with 1.04 ns edge placement, and a 12-bit 3.75 MSPS ADC. The MIPS32 microAptiv core at 120 MHz executes FOC torque loops within 8.3 us cycle times. The CAN-FD controller enables multi-axis networked drives, while 256 KB ECC Flash stores field-oriented control algorithms and motor parameter sets. Designers benefit from the 48-VQFN footprint and 2.3-3.6 V supply range supporting industrial 3.3 V rails.
Được đề xuất
Industrial Servo Drives
For industrial servo drives, the PIC32MK0256MCJ048T-I/7MX combines deterministic interrupt response, 1.04 ns PWM resolution, and CAN-FD networking. The 256 KB Flash stores PID profile tables and 64 KB SRAM handles trajectory buffering without external memory. Three op-amps configured as differential amplifiers interface directly to low-side shunt resistors for closed-loop current control. The -40 C to +85 C industrial temperature range suits factory floor deployments, and the 48-VQFN exposed pad provides adequate thermal dissipation at 120 MHz.
Được đề xuất
CAN-FD Industrial Sensors
The PIC32MK0256MCJ048T-I/7MX integrates a hardware CAN-FD controller, supporting 5 Mbps data phase rates for industrial sensor networks. Its 120 MHz core samples CAN messages at sub-100 us intervals, and 256 KB Flash accommodates CANopen or J1939 stack images. The 12-bit ADC with 28 input channels digitizes analog sensor data while the ECAN module handles arbitration, filtering, and acceptance masking in hardware. The compact 48-VQFN (6x6) package fits within small sensor enclosures.
Được đề xuất
Industrial IoT (IIoT) Gateways
In IIoT gateway nodes, the PIC32MK0256MCJ048T-I/7MX serves as a protocol bridge between CAN-FD fieldbus and uplinks. Its MIPS32 core runs TCP/IP stacks, while CAN-FD handles real-time field traffic. The 64 KB SRAM supports MQTT/TLS handshake flows, and 256 KB Flash stores gateway firmware. The 2.3 V to 3.6 V supply accepts 3.3 V rails from PoE or USB inputs, and the 48-VQFN integrates easily alongside wireless modules on compact PCBs.
Được đề xuất
Power Conversion / Digital PFC
The PIC32MK0256MCJ048T-I/7MX delivers the DSP extensions and ADC throughput required for digital power factor correction (PFC) and switch-mode power supplies. The 120 MHz core runs control loops at 50 kHz switching frequency, and the high-resolution PWM modules drive MOSFETs with 1.04 ns edge placement. The 12-bit ADC samples inductor current and rectified mains voltage synchronously, while 64 KB SRAM holds instantaneous power calculations. The 48-VQFN package suits compact DIN-rail power modules.
Được đề xuất
Robotics and CNC Motion Control
Robotics and CNC applications leverage the PIC32MK0256MCJ048T-I/7MX's deterministic 120 MHz core, high-resolution PWMs, and integrated op-amps. The 3 op-amps interface with H-bridge shunt resistors for current feedback, and the 12-bit ADC captures feedback at 3.75 MSPS for trajectory interpolation. With 256 KB Flash and 64 KB SRAM, G-code interpreters and motion trajectory planners fit without external memory. The CAN-FD interface coordinates multi-axis robots on industrial CANopen networks.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC32MK0256MCJ048T-I/7MX — 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 | PIC32MK0256MCJ048-I/7MX | PIC32MK0256MCJ048T-E/7MX | PIC32MK0256MCJ048-E/7MX | PIC32MK0128MCJ048T-I/7MX | dsPIC33CK256MP508-I/PT |
|---|---|---|---|---|---|---|
| Package | 48-VQFN (6x6) | 48-VQFN (6x6) - same | 48-VQFN (6x6) - same | 48-VQFN (6x6) - same | 48-VQFN (6x6) - same | 48-VQFN (6x6) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core / Architecture | MIPS32 microAptiv @120 MHz | MIPS32 microAptiv @120 MHz | MIPS32 microAptiv @120 MHz | MIPS32 microAptiv @120 MHz | MIPS32 microAptiv @120 MHz | dsPIC33 DSC @100 MHz |
| Flash Memory | 256 KB ECC | 256 KB ECC | 256 KB ECC | 256 KB ECC | 128 KB ECC | 256 KB ECC |
| SRAM | 64 KB | 64 KB | 64 KB | 64 KB | 64 KB | 24 KB |
| Temperature Range | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +125C (Extended) | -40C to +125C (Extended) | -40C to +85C (Industrial) | -40C to +85C (Industrial) |
| CAN-FD | Yes | Yes | Yes | Yes | Yes | No |
| On-chip Op-Amps | 3 | 3 | 3 | 3 | 3 | 3 |
Bảo phân biệt quan trọng
- 256 KB ECC Flash with on-chip op-amps in 48-VQFN (vsPIC32MK0128MCJ048T-I/7MX)
- 120 MHz MIPS32 core vs 100 MHz dsPIC33 DSC (vsdsPIC33CK256MP508-I/PT)
- CAN-FD hardware (vsdsPIC33CK256MP508-I/PT)
Ghi chú thiết kế
The PIC32MK0256MCJ048T-I/7MX requires decoupling on every VDD and AVDD pin pair. Place a 100 nF X7R ceramic capacitor within 5 mm of each VDD pin and a bulk 4.7 uF ceramic on the main 3.3 V rail. Use separate AVDD filtering (10 uH ferrite + 10 uF + 100 nF) to isolate analog supply noise from the high-speed digital core.
Estimated: at 120 MHz CPU activity, the device draws approximately 30 mA from VDD, dissipating roughly 100 mW. With the 48-VQFN exposed pad soldered to a 25 mm x 25 mm copper pour on a 4-layer PCB, theta_JA drops to roughly 30 C/W, yielding a 3 C temperature rise above ambient. For full industrial -40 C to +85 C compliance, ensure the ground pad receives a continuous ground-stitched pour.
Route the high-speed motor-control PWM traces (PWM1L/H through PWM4L/H) as impedance-controlled differential pairs on the top layer directly above an uninterrupted ground plane. Keep analog op-amp inputs (OA1IN+, OA1IN-) on an inner layer to minimize noise pickup from PWM edges, which can couple as common-mode voltage to current-sense shunts.
Do not float any unused analog input pin - tie them to AVDD or AVSS through 10 kohm resistors to avoid ADC charge-injection noise. The MCLR pin must include the recommended RC reset circuit (10 kohVDG pull-up to VDD, 100 nF capacitor to VSS) to ensure clean reset behavior under noisy industrial conditions.
Thông tin tuân thủ
ROHS3 Compliant per Microchip product page (2026-09-30). REACH compliance per Microchip standard policy. AEC-Q100 not applicable (not automotive qualified). For halogen-free status refer to Microchip directly.
