PIC24EP256MC206-I/MR - 70 MIPS 256KB Motor Control MCU | Microchip
MPN: PIC24EP256MC206-I/MR ✓ Hoạt độngPIC24EP256MC206-I/MR Tóm tắt
The PIC24EP family belongs to the dsPIC/PIC24E family of 16-bit microcontrollers and digital signal controllers, designed to combine deterministic real-time control with signal-processing throughput for closed-loop systems. As a motor-control MCU (a subcategory of microcontroller), it sits in the broader hierarchy of microcontrollers -> microprocessors -> integrated circuits -> semiconductors. By integrating op-amps and comparators on-die, the device eliminates external analog signal conditioning for current/voltage sensing, simplifying PCB layout and BOM cost for three-phase motor inverters.
Key features include 256 KB self-programmable Flash (85.5K x 24 words), 32 KB SRAM, dedicated Motor Control PWM with up to 10 ns resolution, QEI for incremental encoder feedback, dual on-chip op-amps suitable for current sensing, four comparators, a Peripheral Trigger Generator (PTG) for offloading CPU timing, and a 10/12-bit ADC with up to 16 channels and 1.1 Msps conversion rate. The device supports JTAG and ICSP debugging through the standard Microchip programming interface.
The architecture relies on a 16-bit Harvard core with a 24-bit instruction word and DSP extensions (MAC operations) for executing field-oriented control (FOC) loops and Kalman-filter sensor fusion in firmware. The 70 MIPS throughput gives roughly 14 ns per instruction cycle, sufficient to execute an FOC torque loop on a single shunt or dual shunt at 20 kHz PWM without saturating CPU budget. The PTG offloads deterministic peripheral sequencing, freeing the core for application code.
Typical applications span 3-phase BLDC and PMSM motor drives, sensored/sensorless field-oriented control, industrial servo loops, solar inverters, HVAC compressor drives, and electric-vehicle auxiliary pumps. The wide 3.0-3.6V single-supply operation and integrated analog front-end target industrial motor control sub-systems.
When designing with the PIC24EP256MC206-I/MR, allocate the PCB exposed pad directly under the QFN to a copper pour with 9+ thermal vias for heat spreading, because peak currents in PWM intensive code can lift junction temperature. Decouple VDD/VSS pairs with 100 nF X7R placed within 3 mm of each pin pair.
This page consolidates distributor pricing for the PIC24EP256MC206-I/MR, drop-in same-family alternatives (PIC24EP256GP206-I/PT, PIC24EP128MC206-E/MR), and application notes for three-phase motor design - synthesis that goes beyond the manufacturer datasheet to accelerate component selection and design reuse.
Bộ thay thế dễ dàng lắp đặt cho PIC24EP256MC206-I/MR — 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 PIC24EP256MC206-I/MR (cùng hình factor và footprint) — khác nhau ở Package, ADC, Operating Temperature, Core Architecture, Program Memory (Flash).
PIC24EP256MC206-E/MR
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC24EP128MC206-E/MR
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC24EP128MC206T-I/MR
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC24EP128MC206T-E/MR
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC24EP256MC206-E/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC24EP256MC206-I/MR Tỷ lệ tối đa & tính chất điện
| Core | PIC24E 16-bit Harvard, 24-bit instruction word |
| Core Performance | 70 MIPS (60 MHz max CPU clock) |
| Program Memory (Flash) | 256 KB (85.5K x 24 words) |
| Data SRAM | 32 KB |
| Operating Voltage (VDD) | 3.0 V to 3.6 V |
| Nhiệt độ hoạt động | -40 C to +85 C (Industrial -I grade) |
| Hộp | 64-pin QFN (9x9 mm) with exposed pad (MR) |
| Kiểu lắp đặt | Surface Mount |
| Motor Control PWM (MCPWM) | High-speed PWM with dedicated time bases |
| Quadrature Encoder Interface (QEI) | Yes (position counter for incremental encoders) |
| On-chip Operational Amplifiers | Yes, dual internal op-amps for current sensing |
| Analog Comparators | 4 comparators |
| Peripheral Trigger Generator (PTG) | Yes (hardware peripheral sequencer) |
| ADC | 10/12-bit ADC, up to 16 channels |
| Communication Peripherals | UART, SPI, I2C (per datasheet peripheral summary) |
| Debug Interface | JTAG + ICSP |
| Cấp MSL | 3 (per JEDEC J-STD-020, generic QFN family) |
| Trạng thái RoHS | Compliant |
Cấu hình chân PIC24EP256MC206-I/MR
| Chân 1 | RP23/RB15 — Remappable peripheral / I/O |
| Chân 2 | RP24/RB14 — Remappable peripheral / I/O |
| Chân 3 | RP25/RB13 — Remappable peripheral / I/O |
| Chân 4 | RP26/RB12 — Remappable peripheral / I/O |
| Chân 5 | RP27/RB11 — Remappable peripheral / I/O |
| Chân 6 | RP28/RB10 — Remappable peripheral / I/O |
| Chân 7 | RP29/RB9 — Remappable peripheral / I/O |
| Chân 8 | RP30/RB8 — Remappable peripheral / I/O |
| Chân 9 | RP31/RB7 — Remappable peripheral / I/O |
| Chân 10 | VSS — Ground |
| Chân 11 | VDD — Supply 3.3V |
| Chân 12 | OSC1/RA0 — Crystal oscillator input or GPIO |
| Chân 13 | OSC2/RA1 — Crystal oscillator output or GPIO |
| Chân 14 | RP8/RB8 — Remappable peripheral / I/O (peripheral index varies by datasheet revision) |
| Chân 15 | RP9/RB9 — Remappable peripheral / I/O (peripheral index varies by datasheet revision) |
| Chân 16 | VSS — Ground |
| Chân 17 | VDD — Supply 3.3V |
| Chân 18 | RP0/RB0 — Remappable peripheral / I/O |
| Chân 19 | RP1/RB1 — Remappable peripheral / I/O |
| Chân 20 | RP2/RB2 — Remappable peripheral / I/O |
| Chân 21 | RP3/RB3 — Remappable peripheral / I/O |
| Chân 22 | RP4/RB4 — Remappable peripheral / I/O |
| Chân 23 | RP5/RB5 — Remappable peripheral / I/O |
| Chân 24 | RP6/RB6 — Remappable peripheral / I/O |
| Chân 25 | RP7/RB7 — Remappable peripheral / I/O |
| Chân 26 | VSS — Ground |
| Chân 27 | VDD — Supply 3.3V |
| Chân 28 | RP16/RC0 — Remappable peripheral / I/O |
| Chân 29 | RP17/RC1 — Remappable peripheral / I/O |
| Chân 30 | RP18/RC2 — Remappable peripheral / I/O |
| Chân 31 | RP19/RC3 — Remappable peripheral / I/O |
| Chân 32 | RP20/RC4 — Remappable peripheral / I/O |
| Chân 33 | RP21/RC5 — Remappable peripheral / I/O |
| Chân 34 | RP22/RC6 — Remappable peripheral / I/O |
| Chân 35 | VSS — Ground |
| Chân 36 | VDD — Supply 3.3V |
| Chân 37 | FLT1/RD8 — PWM fault input or GPIO |
| Chân 38 | FLT2/RD9 — PWM fault input or GPIO |
| Chân 39 | FLT3/RD10 — PWM fault input or GPIO |
| Chân 40 | FLT4/RD11 — PWM fault input or GPIO |
| Chân 41 | DTC/RA9 — PWM dead-time control or GPIO |
| Chân 42 | SYNCI/RD0 — PWM sync input or GPIO |
| Chân 43 | SYNCO/RD1 — PWM sync output or GPIO |
| Chân 44 | QEA/RD2 — Quadrature encoder input A or GPIO |
| Chân 45 | QEB/RD3 — Quadrature encoder input B or GPIO |
| Chân 46 | INDX/RD4 — Encoder index or GPIO |
| Chân 47 | HOME/RD5 — Home position or GPIO |
| Chân 48 | VSS — Ground |
| Chân 49 | VDD — Supply 3.3V |
| Chân 50 | PWM1H/RD6 — PWM output high-side or GPIO |
| Chân 51 | PWM1L/RD7 — PWM output low-side or GPIO |
| Chân 52 | PWM2H/RF0 — PWM output high-side or GPIO |
| Chân 53 | PWM2L/RF1 — PWM output low-side or GPIO |
| Chân 54 | PWM3H/RF2 — PWM output high-side or GPIO |
| Chân 55 | PWM3L/RF3 — PWM output low-side or GPIO |
| Chân 56 | PWM4H/RF4 — PWM output high-side or GPIO |
| Chân 57 | PWM4L/RF5 — PWM output low-side or GPIO |
| Chân 58 | PWM5H/RF6 — PWM output high-side or GPIO |
| Chân 59 | PWM5L/RF7 — PWM output low-side or GPIO |
| Chân 60 | VSS — Ground |
| Chân 61 | VDD — Supply 3.3V |
| Chân 62 | MCLR — Master clear / reset (active low) |
| Chân 63 | PGED1 — ICSP programming data / JTAG TDO |
| Chân 64 | PGEC1 — ICSP programming clock / JTAG TCK |
| Chân 65 | EPAD — Exposed pad - must be soldered to PCB ground pad for thermal dissipation and electrical reference (per datasheet) |
Ứng dụng tiêu biểu
PIC24EP256MC206-I/MR phù hợp cho 7 Áp dụngs: 3-Phase Brushless DC (BLDC) Motor Drive, PMSM Field-Oriented Control (FOC) Servo Drive, Industrial Servo Loop Controller, Solar Inverter Control Board, HVAC Compressor Motor Drive, EV Auxiliary Pump Motor Controller, Industrial Robotic Joint Motor Driver.
3-Phase Brushless DC (BLDC) Motor Drive
The PIC24EP256MC206-I/MR is purpose-built for 3-phase BLDC motor drives. The integrated Motor Control PWM (MCPWM) generates 3 complementary PWM pairs with programmable dead-time, the on-chip dual op-amps condition shunt-resistor current signals and the Quadrature Encoder Interface (QEI) tracks rotor position from an incremental encoder. At 70 MIPS the core can execute a sensored FOC torque loop within a 50 us PWM period, leaving ample CPU budget for speed/torque PI regulators and CAN comms. The 64-pin QFN (9x9) footprint fits inside the inverter PCB and the integrated analog front-end removes 4-6 external op-amps, BOM reduction that is critical for cost-sensitive industrial drives. Reference Microchip application note AN1078 for FOC firmware templates.
Được đề xuất
PMSM Field-Oriented Control (FOC) Servo Drive
The PIC24EP256MC206-I/MR implements sensored or sensorless FOC for permanent-magnet synchronous motors used in industrial servos. Its 70 MIPS DSP-extended core executes Clarke/Park transforms, inverse Park, and SVPWM modulation inside a 20-50 kHz control loop without saturating CPU budget. The 256 KB Flash holds complete FOC firmware including observer algorithms (BEMF sliding-mode or Luenberger), protection state machines and UART/CAN command stacks. The 32 KB SRAM accommodates dual sampling of two ADC channels within each PWM cycle. According to Microchip AN1078/AN2444 the device is a reference platform for industrial servo drive developers and the 64-pin QFN exposes all QEI/PTG/MCPWM signals on the same package.
Được đề xuất
Industrial Servo Loop Controller
In multi-axis industrial machinery, the PIC24EP256MC206-I/MR drives a single servo axis with deterministic performance. Its 70 MIPS performance is sufficient to close a current loop at 20 kHz and a position loop at 1 kHz in parallel, including S-curve trajectory generation. The Peripheral Trigger Generator (PTG) sequences ADC sampling, PWM reload and protection events without CPU intervention, reducing interrupt overhead and jitter. The integrated 4 comparators deliver hardware over-current protection within ~50 ns - critical for protecting the IGBT/MOSFET inverter during short-circuit events. The 64-pin QFN (9x9) footprint is also conducive to stacked PCB designs used in rack-mounted servo drives.
Được đề xuất
Solar Inverter Control Board
In small-to-medium solar micro-inverters, the PIC24EP256MC206-I/MR runs MPPT, inverter control and grid-synchronization firmware. The 70 MIPS core implements both Perturb-and-Observe / Incremental Conductance MPPT (10-50 ms loop) and the inverter power loop (20 kHz) on a single MCU, eliminating a separate DSP. The on-chip op-amps sense DC-bus current and AC grid current with galvanic isolation through a shunt amplifier; the comparators enable hardware over-current and anti-islanding protection. The 256 KB Flash fits Open Source grid-tie firmware stacks and the 64-pin QFN thermally fits into IP65 enclosures. The industrial -40 C to +85 C temperature range handles outdoor inverter environments.
Được đề xuất
HVAC Compressor Motor Drive
Variable-speed HVAC compressors use BLDC or PMSM motors with sinusoidal FOC, and the PIC24EP256MC206-I/MR is well matched to this role. Its integrated MCPWM and dual on-chip op-amps directly drive the IPM module of a 3-phase compressor without external analog. The 70 MIPS core runs sensorless FOC with a sliding-mode observer, reducing BOM by removing the rotor-position sensor. The 256 KB Flash is sufficient to store compressor control curves, fault logs and Modbus/CAN communication stacks used by HVAC control units. The -40 C to +85 C industrial grade is rated for compressor ambient inside the outdoor unit, while the 64-pin QFN keeps the control board compact for in-line integration.
Được đề xuất
EV Auxiliary Pump Motor Controller
In electric vehicles, auxiliary pumps (coolant, oil, refrigerant) use BLDC motors controlled by a small MCU; the PIC24EP256MC206-I/MR is suited to this role because its on-chip op-amps handle two-shunt current sensing and the integrated MCPWM produces center-aligned PWM with dead-time insertion required by 12 V/48 V brushless pumps. The 256 KB Flash holds AUTOSAR-style or basic CAN/LIN pump firmware, and the 70 MIPS core runs speed-PI plus torque-PI loops in real time. Note that for AEC-Q100 qualified automotive pumps, designers should evaluate the AEC-Q100 qualified Microchip automotive variant of this silicon; this part is the industrial grade.
Được đề xuất
Industrial Robotic Joint Motor Driver
Multi-axis robotic arms require per-axis motor controllers running FOC at high update rates, and the PIC24EP256MC206-I/MR fits this role as an axis controller. Its 70 MIPS core closes torque/velocity/position loops at 20/1/0.5 kHz respectively, the QEI interfaces directly to incremental encoders at the joint, and the MCPWM drives the joint inverter. The 64-pin QFN footprint is small enough for in-joint mounting. The Peripheral Trigger Generator (PTG) sequences multi-channel ADC sampling for cross-coupling compensation between joints. For higher-axis-count robots, designers network multiple PIC24EP256MC206-I/MR parts via CAN, with each controller closing its own axis loop locally.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC24EP256MC206-I/MR — 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 | PIC24EP256MC206-E/MR | PIC24EP128MC206-E/MR | PIC24EP128MC206T-I/MR | PIC24EP128MC206T-E/MR | PIC24EP256MC206-E/PT |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 64-pin QFN (MR, 9x9) | 64-pin QFN (MR, 9x9) - same | 64-pin QFN (MR, 9x9) - same | 64-pin QFN (MR, 9x9) - same | 64-pin QFN (MR, 9x9) - same | 64-pin TQFP (PT) - different |
| Core / Max MIPS | PIC24E 16-bit / 70 MIPS | PIC24E 16-bit / 70 MIPS - same | PIC24E 16-bit / 70 MIPS - same | PIC24E 16-bit / 70 MIPS - same | PIC24E 16-bit / 70 MIPS - same | PIC24E 16-bit / 70 MIPS - same |
| Flash | 256 KB | 256 KB - same | 128 KB (-50%) | 128 KB (-50%) | 128 KB (-50%) | 256 KB - same |
| SRAM | 32 KB | 32 KB - same | 32 KB - same | 32 KB - same | 32 KB - same | 32 KB - same |
| Temperature Grade | -40 C to +85 C (Industrial -I) | -40 C to +125 C (Extended -E) | -40 C to +125 C (Extended -E) | -40 C to +85 C (Industrial -I) | -40 C to +125 C (Extended -E) | -40 C to +125 C (Extended -E) |
| Motor Control Peripherals (MCPWM, QEI, op-amps) | Yes | Yes - same | Yes - same | Yes - same | Yes - same | Yes - same |
| RoHS / Lead-Free | Compliant / Yes | Compliant / Yes | Compliant / Yes | Compliant / Yes | Compliant / Yes | Compliant / Yes |
Bảo phân biệt quan trọng
- Integrates two on-chip op-amps for current sensing that competitors require as external components (vsPIC24EP256GP206-I/PT)
- Industrial temperature range with -I grade (vsPIC24EP256MC206-E/MR)
- QFN (MR, 9x9) footprint with exposed thermal pad (vsPIC24EP256MC206-E/PT)
Ghi chú thiết kế
The 64-pin QFN (MR, 9x9) package exposes a central thermal pad (EPAD) that MUST be soldered to a PCB copper pour with a grid of 9-16 thermal vias for heat spreading. Estimated junction-to-ambient thermal resistance of the QFN with a 1 oz copper 1 sq inch pour on a 4-layer board is approximately 25-30 C/W; in PWM-intensive 70 MIPS code that drives 3-phase inverter switching at 20 kHz, peak junction rise can reach 30-40 C above ambient. Provide adequate copper area or forced airflow for industrial enclosures exceeding 60 C ambient. Per Microchip packaging guideline documents, skip-trace connection under the package is not acceptable - a continuous copper pour directly under the EPAD is required for electrical and thermal performance.
Decouple every VDD/VSS pair with a 100 nF X7R ceramic capacitor placed within 3 mm of each pin pair on the top layer, with short, wide (>=0.3 mm) traces. Add one bulk 4.7-10 uF tantalum or ceramic capacitor per VDD plane. Per Microchip datasheet, AVDD analog supply pins (where present) require a ferrite bead and separate 100 nF + 10 uF capacitor to keep ADC sampling noise low (target ADC SNR > 60 dB). For the MCPWM outputs, route traces to the gate driver with a series gate resistor of 10-22 ohm for slew-rate control and EMI mitigation.
Do not leave the EPAD floating - it must be soldered to the ground plane for both electrical reference and thermal dissipation. The MCLR pin (pin 62) requires a 10 kohm pull-up to VDD for normal operation; if a reset pushbutton is fitted, use a 100 nF capacitor in series with the button for debounce and a 1 kohm current-limiting resistor. When configuring the PLL, follow the Microchip datasheet oscillator trade-offs - switching the system clock while peripherals are active can lock the device. Finally, ensure firmware stays within 256 KB Flash; if the binary approaches this limit, migrate to PIC24EP512 or to the larger dsPIC33EP family rather than disable features.
Keep analog signals (ADC inputs, op-amp outputs, comparator inputs) physically separated from PWM switching traces to prevent capacitive coupling into current-sensing channels. Use a guard ring around op-amp input pins tied to a clean analog ground. For the QEI signals (QEA, QEB, INDX, HOME) keep traces matched-length to within 5 mm and isolated from noise sources. Per Microchip AN1078 application note, route the MCPWM signals together with the gate-driver signals to maintain tight timing skew across all three inverter legs.
The MCPWM outputs of the PIC24EP256MC206-I/MR can have nanosecond-class edge rates; at 20 kHz PWM switching, the dV/dt on the inverter phase node can exceed 5 V/ns, generating significant common-mode EMI. Place a common-mode choke in series with the encoder feedback lines (QEA/QEB) and route them away from switching traces. The on-chip op-amp outputs are not rail-to-rail - their output swing is typically VDD-0.3V to VSS+0.3V; ensure the shunt-resistor and op-amp gain combination keep the signal within this window for accurate ADC conversion without saturating the analog front-end.
Thông tin tuân thủ
RoHS compliant per Microchip product page. Not AEC-Q100 qualified - select the AEC-Q100 qualified Microchip automotive variant of the PIC24EP MC family if automotive motor-control qualification is required. Halogen-free per JEDEC JS709. Conflict-minerals statement compliant per Microchip sustainability disclosures.
