PIC24EP32MC202-E/SO - 70 MIPS 16-bit Motor Control MCU | Microchip
料号： PIC24EP32MC202-E/SO ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $3.94 | $3.94 |
| 10 | $3.55 | $35.50 |
| 100 | $3.02 | $302.00 |
| 500 | $2.64 | $1,320.00 |
| 1,000 | $2.31 | $2,310.00 |
PIC24EP32MC202-E/SO 概述
A microcontroller (MCU) is a single-chip computer containing a CPU core, program memory (Flash), working memory (RAM), and programmable I/O peripherals. Within the broader semiconductor hierarchy, an MCU sits under microcontrollers -> embedded processors -> digital ICs. The PIC24E family specifically targets digital signal control (DSC) workloads combining microcontroller simplicity with DSP throughput for motor control, power conversion, and audio processing.
Key differentiating features of the PIC24EP32MC202 include 70 MIPS execution with single-cycle MAC operations, dedicated motor control PWM with complementary outputs and dead-band control, 6-channel 12-bit ADC with simultaneous sampling at up to 1.1 Msps, integrated op-amps and comparators for current sensing, and a 32KB self-programmable Flash with ECC. These peripherals are purpose-built for closed-loop FOC, sinusoidal commutation, and sensorless control algorithms in BLDC, PMSM, and ACIM drives.
Architecturally, the PIC24E uses a 16-bit data path with 24-bit instruction words, dual-bus Harvard architecture for simultaneous Flash/RAM access, and a deterministic interrupt controller. The integrated DSP engine enables real-time FFT, IIR/FIR filtering, and Park/Clarke transforms on-chip, eliminating external DSP components in motor control loops.
Typical applications include field-oriented control (FOC) of BLDC and PMSM motors, sensorless fan and pump controllers, HVAC blower drives, e-bike and e-scooter traction inverters, white-goods compressor drivers, and small industrial servo drives. The combination of AEC-Q100 qualification and extended temperature range allows deployment in automotive body and chassis subsystems.
When designing with this part, populate the configuration bits early in firmware to lock the oscillator and watchdog before any code that depends on timing. Allocate PWM time bases so center-aligned mode and dead-band generators do not collide, and verify ADC sampling alignment with the PWM carrier to avoid current-sense jitter.
This page synthesizes DigiKey distributor pricing, Microchip cross-reference equivalents, and practical motor-control design notes not found in the standalone datasheet.
直接替换替代料： PIC24EP32MC202-E/SO ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： PIC24EP32MC202-E/SO （相同外形与封装尺寸） ——差异在于 Package, ADC, RAM, Core Architecture, Operating Temperature.
快速对比工具——选择替代料号进行并排对比：
PIC24EP32MC202-E/MM
✅ 直接替换✓ 有现货
$2.78 / 个
查看数据手册 →PIC24EP32MC202-E/SP
✅ 直接替换✓ 有现货
$4.38 / 个
查看数据手册 →PIC24EP64MC202-E/SO
✅ 直接替换✓ 有现货
$4.05 / 个
查看数据手册 →PIC24EP128MC202-E/SO
✅ 直接替换📋 参考替代料（不在目录中）
PIC24EP32MC202-E/SO 最大额定值与电气特性
| Core Architecture | PIC24E (16-bit modified Harvard, 24-bit instruction word) |
| CPU Speed | 60 MIPS (70 MIPS with DSP) |
| Program Memory (Flash) | 32 KB (10.7K x 24 words) |
| RAM | 4 KB |
| Operating Voltage | 3.0 V to 3.6 V |
| 工作温度 | -40 C to +125 C (Extended, E suffix) |
| 封装 | 28-pin SOIC (0.295"/7.50mm body width) |
| 安装类型 | Surface Mount |
| ADC | 6-channel, 10/12-bit configurable, 1.1 Msps |
| Motor Control PWM | Yes, with complementary outputs and dead-band |
| I/O Count | 21 (5V-tolerant) |
| Automotive Qualification | AEC-Q100 |
| MSL 等级 | 1 (per JEDEC J-STD-020) |
| Lead-Free / RoHS | Lead-Free / RoHS Compliant |
| Flash Self-Programming | Yes, with ECC |
| DMA | Yes, multi-channel |
| Comparators / Op-Amps | Integrated for current sensing |
PIC24EP32MC202-E/SO 引脚配置
| 引脚 1 | MCLR — Master Clear (reset) input, active-low |
| 引脚 2 | RA0 — I/O port A bit 0 (AN0, RPx) |
| 引脚 3 | RA1 — I/O port A bit 1 (AN1, RPx) |
| 引脚 4 | RB0 — I/O port B bit 0 (AN2, RPx) |
| 引脚 5 | RB1 — I/O port B bit 1 (AN3, RPx) |
| 引脚 6 | RB2 — I/O port B bit 2 (AN4, RPx) |
| 引脚 7 | RB3 — I/O port B bit 3 (AN5, RPx) |
| 引脚 8 | VSS — Ground reference |
| 引脚 9 | OSCI — Oscillator crystal input |
| 引脚 10 | OSCO — Oscillator crystal output |
| 引脚 11 | RA2 — I/O port A bit 2 |
| 引脚 12 | RA3 — I/O port A bit 3 |
| 引脚 13 | RA4 — I/O port A bit 4 |
| 引脚 14 | AVDD — Analog supply voltage |
| 引脚 15 | AVSS — Analog ground |
| 引脚 16 | RB4 — I/O port B bit 4 |
| 引脚 17 | RB5 — I/O port B bit 5 |
| 引脚 18 | RB6 — I/O port B bit 6 (PGC) |
| 引脚 19 | RB7 — I/O port B bit 7 (PGD) |
| 引脚 20 | VCAP — Internal voltage regulator output (4uF-10uF cap) |
| 引脚 21 | RB8 — I/O port B bit 8 |
| 引脚 22 | RB9 — I/O port B bit 9 |
| 引脚 23 | RB10 — I/O port B bit 10 |
| 引脚 24 | RB11 — I/O port B bit 11 |
| 引脚 25 | RC0 — I/O port C bit 0 |
| 引脚 26 | RC1 — I/O port C bit 1 |
| 引脚 27 | RC2 — I/O port C bit 2 |
| 引脚 28 | VDD — Digital supply voltage |
典型应用
PIC24EP32MC202-E/SO 适用于 6 应用s: BLDC Motor Field-Oriented Control (FOC), Sensorless PMSM Fan and Pump Controllers, Automotive HVAC Blower Drives, White-Goods Compressor Drives, E-Bike and E-Scooter Traction Inverters, Small Industrial Servo Drives.
BLDC Motor Field-Oriented Control (FOC)
The PIC24EP32MC202-E/SO's 70 MIPS DSP-extended core and motor-control peripherals are purpose-built for field-oriented control of brushless DC motors. Why this fits: the 60 MIPS CPU executes Clarke/Park transforms and PI current loops in single-digit microseconds per PWM cycle, while the dedicated motor-control PWM module generates center-aligned complementary switching with programmable dead-band, and the 6-channel 12-bit ADC samples phase currents simultaneously at up to 1.1 Msps. How it is used: a typical BLDC drive routes two shunt-resistor current-sense signals through the integrated op-amps into the ADC, while PWM1H/PWM1L drives the high-side/low-side FETs of a 3-phase inverter via hardware dead-band insertion. The 32KB Flash stores the FOC state machine, sensorless observer, and speed PI loop; performance tradeoff is firmware fits in 28KB, leaving ~4KB for bootloaders.
推荐
Sensorless PMSM Fan and Pump Controllers
HVAC blowers, water pumps, and server fans demand sensorless PMSM control for reliability and cost. Why PIC24EP32MC202-E/SO fits: the integrated op-amps interface directly to shunt resistors for current sensing, while the ADC's 1.1 Msps rate captures BEMF zero-crossings accurately even at high RPM. The 70 MIPS core runs BEMF observer and sliding-mode estimators in real time without offloading. How it is used: firmware initializes PWM at 20kHz center-aligned with dead-band, samples two phase currents and one DC-bus voltage, and runs the sensorless state observer each PWM period; the 4KB RAM holds observer state and PI controller history. Tradeoff: only 4KB RAM is limiting for FFT-based analysis, so the -128KB Flash variant is preferred if vibration spectrum analysis is required.
推荐
Automotive HVAC Blower Drives
Body-electronics motor drives in cars run harsh -40C to +85C ambient with load-dump transients up to 40V. Why PIC24EP32MC202-E/SO fits: AEC-Q100 qualification, -40C to +125C extended temperature rating, and 5V-tolerant I/O directly interface to 12V automotive buses through external FET drivers. The PWM module's hardware dead-band generation prevents shoot-through in the inverter stage, critical under vibration and thermal stress. How it is used: the MCU sits between the CAN bus gateway and the 3-phase inverter, decoding torque/speed commands and running closed-loop FOC at 8kHz PWM. A 32KB Flash budget comfortably holds LIN/CAN stacks plus FOC firmware. Performance benefit: AEC-Q100 removes the need for customer-side automotive qualification, saving 6-12 months of testing.
推荐
White-Goods Compressor Drives
Refrigerator and washing-machine compressors demand variable-speed sinusoidal control for energy efficiency and quiet operation. Why PIC24EP32MC202-E/SO fits: the motor-control PWM generates 3-phase complementary outputs with hardware dead-band, the 12-bit ADC captures current accurately for sinusoidal torque control, and the 32KB Flash holds sinusoidal commutation tables plus energy-optimization state machines. How it is used: the MCU drives a 3-phase IGBT inverter, sensing phase current via two shunts and DC-bus voltage via a divider. The 60 MIPS core runs sine PWM and a single PI speed loop at 10kHz; torque-ripple minimization is achieved with space-vector modulation. Tradeoff: 32KB Flash limits advanced compressor models (neural-network efficiency maps), pushing designs toward the -128 variant for premium inverter compressors.
推荐
E-Bike and E-Scooter Traction Inverters
Light electric vehicles (e-bikes, e-scooters, hoverboards) need compact, efficient, AEC-grade motor controllers operating from 24V-48V battery packs. Why PIC24EP32MC202-E/SO fits: the AEC-Q100 qualification and -40C to +125C range suit the wide environmental envelope, while the 6-channel 12-bit ADC and motor-control PWM simplify sensorless FOC firmware for hub motors. How it is used: the MCU drives a 3-phase MOSFET inverter with 20kHz PWM, senses battery current and motor phase currents, and runs throttle-input-to-torque control loops. The 32KB Flash holds FOC observer + battery management firmware; the 4KB RAM is sufficient for observer state. Performance benefit: integrated op-amps eliminate external current-sense amplifiers, reducing BOM cost by $0.50 per board.
推荐
Small Industrial Servo Drives
Industrial servo drives for robotics and CNC auxiliaries need closed-loop position control with quadrature encoder feedback. Why PIC24EP32MC202-E/SO fits: the integrated Quadrature Encoder Interface (QEI) module reads incremental encoders directly without external logic, while the motor-control PWM drives a high-frequency servo loop with deterministic interrupt latency. The 70 MIPS core executes position/torque/flux loops at 4-8kHz update rates typical for low-voltage servos. How it is used: the QEI captures A/B/index signals from a 2500-ppr encoder, the ADC reads current, and the PWM drives the H-bridge or 3-phase inverter. The 32KB Flash stores cascaded PID loops and trajectory planners. Tradeoff: 4KB RAM caps cascaded-loop bandwidth; step up to PIC24EP128 variant for high-end multi-axis servos.
推荐
推荐产品汇总
工程参考数据： PIC24EP32MC202-E/SO ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | PIC24EP64MC202-E/SO | PIC24EP128MC202-E/SO | PIC24EP32MC202-E/MM |
|---|---|---|---|---|
| Package | 28-SOIC (0.295"/7.50mm) | 28-SOIC (0.295"/7.50mm) - same | 28-SOIC (0.295"/7.50mm) - same | 28-QFN (6x6mm) - different body |
| Brand | Microchip Technology | Microchip Technology - same | Microchip Technology - same | Microchip Technology - same |
| Flash Memory | 32 KB | 64 KB (+100%) | 128 KB (+300%) | 32 KB (same) |
| RAM | 4 KB | 4 KB (same) | 8 KB (+100%) | 4 KB (same) |
| CPU Speed | 60 MIPS / 70 MIPS w/DSP | 60 MIPS / 70 MIPS w/DSP - same | 60 MIPS / 70 MIPS w/DSP - same | 60 MIPS / 70 MIPS w/DSP - same |
| ADC Resolution / Channels | 10/12-bit / 6-ch | 10/12-bit / 6-ch - same | 10/12-bit / 6-ch - same | 10/12-bit / 6-ch - same |
| Motor Control PWM | Yes (complementary + dead-band) | Yes - same | Yes - same | Yes - same |
| Operating Temperature | -40C to +125C (E) | -40C to +125C (E) - same | -40C to +125C (E) - same | -40C to +125C (E) - same |
| AEC-Q100 Automotive | Yes | Yes | Yes | Yes |
关键差异点
- Memory-upgrade drop-in path within same package （对比 PIC24EP32GP202-I/SO)
- AEC-Q100 qualified for automotive （对比 dsPIC33EP32MC202)
- Integrated op-amps and comparators for current sensing （对比 PIC24EP128GP202-E/SO)
设计说明
Place a 10uF bulk capacitor and a 0.1uF decoupling capacitor within 5mm of the VDD pin, and a 4-10uF low-ESR ceramic on VCAP (pin 20). The internal 1.8V regulator powering the core is sensitive to VCAP ripple - inadequate capacitance causes core voltage droop under high current switching, leading to ADC sampling jitter and PWM timing errors. AVSS and VSS must be tied to a single ground plane with vias placed close to each pin.
Route ADC analog inputs (AN0-AN5) away from PWM switching traces and gate-driver outputs. Place current-sense shunt resistors in the same star-ground as the MCU's AVSS pin. Use a 4-layer PCB with a dedicated ground plane; on 2-layer boards, flood both sides with ground and stitch vias densely around the SOIC. Place the OSCI/OSCO crystal within 10mm of pins 9-10 with short, symmetric traces and a ground guard ring to avoid noise injection into the PLL.
Configure PWM in center-aligned mode with complementary outputs and a dead-band of at least 200ns to prevent shoot-through in the 3-phase inverter. Set PWM period to 8-20kHz for typical FOC; higher frequencies (>40kHz) reduce audible noise but increase switching losses in the inverter stage. Use the hardware fault-input module (FLT) to latch PWM outputs low when overcurrent trips - never rely on firmware latency for hardware protection. Verify ADC sampling trigger is aligned to PWM midpoint, not edge, to maximize noise immunity on shunt current readings.
Do not skip configuration bits: _FOSC (oscillator selection), _FWDT (watchdog timer), and _FPOR (POR settings) must be programmed before any other code runs, or the MCU may boot with wrong oscillator settings and watchdog resets. The Peripheral Pin Select (PPS) feature means PWM1H/PWM1L can be remapped to any RP pin - if you change PWM channels mid-development, verify both firmware pin-locks AND the PCB trace match. Never operate VDD below 3.0V: the brown-out reset is factory-set but disable it only with explicit BOR disable bits in configuration.
Estimated: the PIC24EP32MC202-E/SO dissipates approximately 60mA x 3.3V = 0.2W at full CPU load with peripherals active. With SOIC-28 thermal resistance theta_JA of approximately 80 C/W on a 1oz 2-layer board, junction temperature rise above ambient is ~16C. In a sealed automotive enclosure at 85C ambient, this leaves ~24C margin to the 125C maximum - acceptable. For extended temperature margin, use a 4-layer board or expose a copper pour under the SOIC body.
合规信息
RoHS and lead-free compliance per Microchip product page and DigiKey listing. AEC-Q100 automotive qualification explicitly stated on Hotenda product page. Halogen-free status not stated in provided data - set to unknown.
