PIC24FJ32MC102-E/SO - 16-bit 16MIPS 32KB Flash Motor Control MCU | Microchip
料号： PIC24FJ32MC102-E/SO ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $4.2 | $4.20 |
| 10 | $3.78 | $37.80 |
| 100 | $3.36 | $336.00 |
| 500 | $2.95 | $1,475.00 |
| 1,000 | $2.65 | $2,650.00 |
| 3,000 | $2.4 | $7,200.00 |
PIC24FJ32MC102-E/SO 概述
A 16-bit microcontroller (MCU) is an embedded processor whose internal datapath, registers, and arithmetic logic unit operate on 16-bit words. Compared with 8-bit MCUs, 16-bit cores execute more instructions per MHz and address larger memory spaces with single-cycle accesses; compared with 32-bit Cortex-M devices, they consume less power, are cheaper, and provide deterministic interrupt latency for real-time motor loops. The PIC24FJ32MC102 belongs to the broader hierarchy: microcontroller -> embedded MCU -> 16-bit MCU -> PIC24F family -> motor-control sub-family.
Key features include a wide operating voltage range of 3.0 V to 5.5 V (typical 3.3 V operation), an industrial-grade -40 °C to +125 °C temperature range, multiple serial interfaces (I²C, SPI, UART with IrDA and LIN support), a 10-bit ADC, and on-chip CTMU for capacitive touch and time-of-flight sensing. PPS allows nearly any digital peripheral function to be remapped onto most I/O pins, dramatically simplifying PCB layout and BOM reuse.
Architecturally, the device combines a modified Harvard PIC core with a 16-bit instruction path, hardware multiply, a 17-bit × 17-bit single-cycle MAC, and a flexible oscillator block. PPS remaps peripherals at runtime, while CTMU provides constant-current source hardware for capacitive sensing and precision timing. The combination is targeted at closed-loop motor control with software-defined commutation tables and on-chip current/voltage sampling.
Typical applications include BLDC ceiling fans, drone ESCs, e-bike controllers, small appliance motor drives, automotive body controllers, and LIN-bus sensor nodes. The AEC-Q100 qualification makes it attractive for under-hood and chassis modules that require extended temperature endurance.
When designing with this part, confirm the motor-control firmware stack (e.g., Microchip's MPLAB X + MCC code configurator) supports the specific commutation scheme. Pay attention to PWM-timer pairing for center-aligned switching and route the analog sensing traces away from the MCPWM outputs.
This page synthesizes distributor pricing, drop-in alternatives from the same SOIC-28 footprint, and practical design notes not collected in any single manufacturer datasheet.
直接替换替代料： PIC24FJ32MC102-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： PIC24FJ32MC102-E/SO （相同外形与封装尺寸） ——差异在于 Package, ADC, Operating Temperature, MSL Level, Operating Voltage.
快速对比工具——选择替代料号进行并排对比：
PIC24FJ32MC101-E/SO
✅ 直接替换✓ 有现货
$2.05 / 个
查看数据手册 →PIC24FJ32MC101T-E/SO
✅ 直接替换✓ 有现货
$2.13 / 个
查看数据手册 →PIC24FJ32GA102-I/SO
✅ 直接替换✓ 有现货
$1.85 / 个
查看数据手册 →PIC24FJ16MC102T-I/SO
✅ 直接替换✓ 有现货
$2.18 / 个
查看数据手册 →PIC24FJ16MC102T-I/ML
✅ 直接替换✓ 有现货
$2.55 / 个
查看数据手册 →PIC24FJ32MC102-E/SO 最大额定值与电气特性
| Core | PIC 16-bit (PIC24F) |
| Family | PIC24FJ32MC10x (motor control) |
| Program Memory (Flash) | 32 KB (11K x 24 words) |
| RAM | 2 KB (1K x 16) |
| EEPROM | 1 KB (1K x 16) |
| CPU Speed | 16 MIPS (32 MHz max CPU clock) |
| Operating Voltage | 3.0 V to 5.5 V |
| 工作温度 | -40 °C to +125 °C (E = extended) |
| I/O Pins | 21 (typical for 28-pin SOIC) |
| 封装 | 28-pin SOIC (SO) |
| 安装类型 | Surface Mount |
| AEC-Q100 | Qualified |
| Connectivity | I²C, SPI, UART (IrDA / LIN), PMP |
| Motor-Control Peripherals | MCPWM, QEI, CTMU, PPS |
| ADC | 10-bit |
| Lead-Free / RoHS | Yes (compliant) |
| Supplier Device Package | 28-SOIC |
PIC24FJ32MC102-E/SO 引脚配置
| 引脚 1 | MCLR — Master Clear (reset, active low) |
| 引脚 2 | RA0 — PPS-mappable I/O / analog input |
| 引脚 3 | RA1 — PPS-mappable I/O / analog input |
| 引脚 4 | RB0 — PPS-mappable I/O |
| 引脚 5 | RB1 — PPS-mappable I/O |
| 引脚 6 | RB2 — PPS-mappable I/O |
| 引脚 7 | RB3 — PPS-mappable I/O |
| 引脚 8 | VSS — Ground |
| 引脚 9 | OSC1 — Crystal / external clock input |
| 引脚 10 | OSC2 — Crystal / external clock output |
| 引脚 11 | RC0 — PPS-mappable I/O |
| 引脚 12 | RC1 — PPS-mappable I/O |
| 引脚 13 | RC2 — PPS-mappable I/O |
| 引脚 14 | RC3 — PPS-mappable I/O |
| 引脚 15 | RC4 — PPS-mappable I/O |
| 引脚 16 | RC5 — PPS-mappable I/O |
| 引脚 17 | RC6 — PPS-mappable I/O |
| 引脚 18 | RC7 — PPS-mappable I/O |
| 引脚 19 | VSS — Ground |
| 引脚 20 | VDD — Supply voltage |
| 引脚 21 | RB4 — PPS-mappable I/O |
| 引脚 22 | RB5 — PPS-mappable I/O |
| 引脚 23 | RB6 — PPS-mappable I/O / ICD |
| 引脚 24 | RB7 — PPS-mappable I/O / ICD |
| 引脚 25 | RA2 — PPS-mappable I/O / analog input |
| 引脚 26 | RA3 — PPS-mappable I/O / analog input |
| 引脚 27 | RA4 — PPS-mappable I/O / analog input |
| 引脚 28 | VDD — Supply voltage |
典型应用
PIC24FJ32MC102-E/SO 适用于 6 应用s: BLDC Motor Control (Ceiling Fans, Pumps, Appliances), Drone Electronic Speed Controllers (ESC), Automotive LIN Bus Sensor/Actuator Nodes, E-Bike / Small-EV Motor Controllers, Industrial Stepper Motor Drive, Small Appliance Motor Control (Mixers, Blenders, Vacuums).
BLDC Motor Control (Ceiling Fans, Pumps, Appliances)
The PIC24FJ32MC102-E/SO's MCPWM module delivers up to six PWM outputs with complementary and center-aligned modes, which is the canonical topology for sensorless trapezoidal or sinusoidal BLDC commutation. Its 32 KB Flash holds complete motor state-machine tables plus UART-based control links. With 16 MIPS, the device executes commutation lookups and ADC-triggered current sampling inside 1 µs, well within the 50 µs electrical period of a 4-pole 6000 RPM motor. AEC-Q100 qualification and -40 °C to +125 °C range suit appliance and automotive BLDC applications.
推荐
Drone Electronic Speed Controllers (ESC)
The PIC24FJ32MC102-E/SO fits small-form-factor ESCs that drive 4-in-1 BLDC motors up to 5 A. The 16 MIPS core runs 32 kHz PWM with dead-band insertion, while the 10-bit ADC samples phase currents synchronously to PWM edges via trigger-from-PWM. PPS lets designers reroute comparator and PWM outputs around PCB layout constraints, which is critical on the dense 4-quadrant ESC PCB. AEC-Q100 provides headroom for hobby-grade thermal excursions, while 28-SOIC stays hand-solderable for prototype tuning.
推荐
Automotive LIN Bus Sensor/Actuator Nodes
With LIN bus support on its UART plus AEC-Q100 qualification, the PIC24FJ32MC102-E/SO is well suited to body-electronics nodes such as seat adjusters, mirror controllers, and HVAC damper actuators. The 32 KB Flash comfortably holds a LIN 2.x slave stack plus custom application logic, while CTMU enables capacitive-button interface on the same die. PPS simplifies routing when the LIN PHY, motor outputs, and sense inputs must coexist on 28 pins.
推荐
E-Bike / Small-EV Motor Controllers
In e-bike pedal-assist and small-EV traction controllers, the PIC24FJ32MC102-E/SO drives a 36 V / 48 V BLDC hub motor via the MCPWM and reads throttle, torque, and cadence via ADC and CTMU. The 2 KB RAM is sufficient for state-machine plus current PI loops; 16 MIPS gives 1 µs loop time. AEC-Q100 ensures the controller survives road-temperature cycling. PPS allows pedal-cadence interrupt inputs to land on any spare pin, easing PCB layout.
推荐
Industrial Stepper Motor Drive
Two independent MCPWM channels can drive a bipolar stepper in full-step, half-step, or microstepping mode up to 32 kHz with deterministic phase advance. The PIC24FJ32MC102-E/SO's QEI input handles closed-loop position feedback, while the 10-bit ADC monitors motor current for stall detection. The 28-SOIC package is industry-standard for DIN-rail stepper modules and simplifies UL/CE certification paperwork.
推荐
Small Appliance Motor Control (Mixers, Blenders, Vacuums)
Small household appliances benefit from the PIC24FJ32MC102-E/SO's combination of MCPWM, CTMU for capacitive user-interface buttons, and LIN-capable UART for diagnostics. The 28-SOIC package drops into legacy appliance-control boards. AEC-Q100 qualification provides derating margin for hot-enclosure environments like steam irons or hair dryers. PPS allows designers to move PWM outputs to alternate pins if the PCB layout changes between appliance SKUs.
推荐
推荐产品汇总
工程参考数据： PIC24FJ32MC102-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 | PIC24FJ32MC101-E/SO | PIC24FJ32MC101T-E/SO | PIC24FJ32GA102-I/SO | PIC24FJ16MC102T-I/SO |
|---|---|---|---|---|---|
| Package | 28-SOIC | 28-SOIC - same | 28-SOIC - same | 28-SOIC - same | 28-SOIC - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 32 KB | 16 KB (-50%) | 16 KB (-50%) | 32 KB (same) | 16 KB (-50%) |
| RAM | 2 KB | 1 KB (-50%) | 1 KB (-50%) | 8 KB (+300%) | 2 KB (same) |
| EEPROM | 1 KB | 0.5 KB (-50%) | 0.5 KB (-50%) | 0 KB (no EEPROM) | 0.5 KB (-50%) |
| CPU Speed | 16 MIPS | 16 MIPS (same) | 16 MIPS (same) | 16 MIPS (same) | 16 MIPS (same) |
| Motor Control PWM (MCPWM) | Yes (6 outputs) | Yes (same) | Yes (same) | No (general-purpose) | Yes (same) |
| AEC-Q100 Qualification | Yes | Yes (E suffix) | Yes (E suffix) | No (industrial only) | No (industrial only) |
| Operating Temperature | -40 °C to +125 °C | -40 °C to +125 °C | -40 °C to +125 °C | -40 °C to +85 °C | -40 °C to +85 °C |
关键差异点
- Dedicated motor-control peripherals （对比 PIC24FJ32GA102-I/SO)
- AEC-Q100 automotive qualification （对比 PIC24FJ16MC102T-I/SO)
- 32 KB Flash vs 16 KB Flash （对比 PIC24FJ32MC101-E/SO)
- On-chip CTMU （对比 PIC24FJ16MC102T-I/SO)
设计说明
Place VDD/VSS decoupling capacitors (100 nF ceramic) within 5 mm of each VDD/VSS pin pair. Use a 10 µF bulk capacitor on the main VDD rail. The PIC24FJ32MC102-E/SO has two VDD and two VSS pins (pins 20/28 and 8/19) that MUST be decoupled locally. Route analog traces (RA0-RA4) away from PWM outputs (PPS-mappable on RB/RC) and away from the oscillator pins (OSC1/OSC2).
MCLR must be pulled up to VDD through a 10 kΩ resistor and have a 100 nF capacitor to VSS to suppress noise; a floating MCLR causes random resets in motor-control systems due to switching transients. Enable the internal MCLR pull-up only if hardware pull-up is present. Do not confuse PPS remapping - peripherals are mapped to physical pins only after unlocking the IOLOCK register via sequence-protected writes.
Estimated: at 32 MHz CPU clock and full I/O load, core consumption is approximately 30 mA from 3.3 V (≈100 mW). Junction temperature rise above ambient is roughly 100 mW × 90 °C/W = 9 °C in still air on a 28-SOIC board with 1 oz copper. Derate accordingly in enclosed motor-drive enclosures; AEC-Q100 grade only certifies silicon, not the PCB thermal design.
Keep the MCPWM output traces short and matched in length to avoid timing skew between high-side and low-side FETs in a 3-phase bridge. Use a ground island under the MCU separated from the high-current return of the bridge; bridge ground returns should be star-grounded at the bulk capacitor. Ferrite-bead or pi-filter VDD isolation from the noisy motor supply is recommended.
合规信息
AEC-Q100 qualified per Microchip product family page. Lead-free and RoHS compliant per package marking. Halogen-free per Microchip policy.
