PIC24EP32MC204-I/PT - 70 MIPS 32KB Flash Motor Control MCU | Microchip
料号： PIC24EP32MC204-I/PT ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $2.94 | $2.94 |
| 10 | $2.78 | $27.80 |
| 100 | $2.45 | $245.00 |
| 500 | $2.1 | $1,050.00 |
| 1,000 | $1.85 | $1,850.00 |
PIC24EP32MC204-I/PT 概述
What is a 16-bit motor control MCU? A 16-bit microcontroller is a single-chip computer with a 16-bit data path and integrated peripherals designed to balance deterministic real-time control with sufficient throughput for closed-loop algorithms. The PIC24E series, positioned in the dsPIC33/PIC24 hierarchy as a high-performance digital signal controller family, integrates motor-control-centric peripherals such as high-speed PWM, op-amps, and comparators alongside the CPU. The PIC24EP32MC204 belongs to the "MC" (motor control) sub-family within dsPIC33/PIC24 devices.
Key features include 4KB RAM, a C compiler-friendly modified Harvard architecture, a 12-bit ADC with up to 1.2 Msps sampling, three analog comparators with programmable reference, two operational amplifiers for current sensing, and Motor Control PWM (MCPWM) outputs capable of driving 3-phase BLDC, PMSM, and ACIM inverters. The device operates from 3.0 V to 3.6 V and supports an industrial -40C to +85C temperature range.
On the silicon level, the PIC24EP32MC204 combines a 16-bit modified-Harvard core with DSP extensions and a deterministic interrupt controller. Hardware multipliers, zero-overhead looping, and dual-port SRAM enable the cycle-accurate execution of field-oriented control (FOC) and space-vector modulation (SVM) routines without software jitter.
Typical applications include sensorless and sensored BLDC/PMSM motor drives (FOC and trapezoidal commutation), industrial servo control, drone ESCs, appliance motor control (washing machines, pumps, fans), and field-oriented-control inverters. The integrated op-amps and comparators minimize external signal-conditioning for current shunt monitoring.
When designing with the device, leverage the integrated op-amps for inline current sensing and the high-resolution PWM for sub-microsecond dead-band control. Pair it with a 3-phase gate driver such as the Microchip MCP8024 or a discrete driver stage to complete the inverter.
This page consolidates distributor pricing, drop-in package-compatible alternatives in the TQFP-44 (10x10) footprint, and practical design notes not found in the manufacturer datasheet, accelerating sourcing and schematic review.
直接替换替代料： PIC24EP32MC204-I/PT ——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： PIC24EP32MC204-I/PT （相同外形与封装尺寸） ——差异在于 ADC, Package, Comparators, Core Architecture, Operating Temperature.
快速对比工具——选择替代料号进行并排对比：
PIC24EP32MC204-E/PT
✅ 直接替换📋 参考替代料（不在目录中）
PIC24EP32MC204-H/PT
✅ 直接替换✓ 有现货
$4.71 / 个
查看数据手册 →PIC24EP32GP204-I/PT
✅ 直接替换✓ 有现货
$2.71 / 个
查看数据手册 →PIC24EP32MC203-I/PT
✅ 直接替换📋 参考替代料（不在目录中）
PIC24EP128MC204-I/PT
✅ 直接替换📋 参考替代料（不在目录中）
PIC24EP32MC204-I/PT 最大额定值与电气特性
| Core Architecture | 16-bit PIC24E (modified Harvard, DSP extensions) |
| Family | dsPIC33/PIC24E - Motor Control (MC) sub-family |
| Program Memory (Flash) | 32 KB (10.7K x 24 instructions) |
| Data Memory (RAM) | 4 KB |
| CPU Speed | 70 MIPS (70 MHz maximum) |
| Operating Voltage | 3.0 V to 3.6 V |
| ADC | 10-bit / 12-bit, up to 1.2 Msps |
| Op-Amps | 2 internal (for current sensing) |
| Comparators | 3 with programmable reference |
| PWM Channels | Motor Control PWM (MCPWM), 6 outputs |
| 封装 | 44-pin TQFP (10x10 mm) |
| 安装类型 | Surface Mount |
| 工作温度 | -40 C to +85 C (Industrial "I") |
| MSL 等级 | 3 (168 hours) |
| RoHS 状态 | Compliant |
PIC24EP32MC204-I/PT 引脚配置
| 引脚 1 | RP15/PWM3H/OCFA — Remappable I/O / PWM output / Output Compare Fault A |
| 引脚 2 | RP14/PWM2H — Remappable I/O / PWM output |
| 引脚 3 | RP13/PWM1H — Remappable I/O / PWM output |
| 引脚 4 | RP12/PWM1L — Remappable I/O / PWM output |
| 引脚 5 | RP11/PWM2L — Remappable I/O / PWM output |
| 引脚 6 | RP10/PWM3L — Remappable I/O / PWM output |
| 引脚 7 | MCLR — Master Clear (reset) input, active low |
| 引脚 8 | RP9/IC2 — Remappable I/O / Input Capture |
| 引脚 9 | VDD — Positive supply voltage (3.0-3.6 V) |
| 引脚 10 | VSS — Ground reference |
| 引脚 11 | RP8/OC2 — Remappable I/O / Output Compare |
| 引脚 12 | RP7/IC1 — Remappable I/O / Input Capture |
| 引脚 13 | RP6/OC1 — Remappable I/O / Output Compare |
| 引脚 14 | RP5/INT1 — Remappable I/O / External Interrupt 1 |
| 引脚 15 | RP4/INT0 — Remappable I/O / External Interrupt 0 |
| 引脚 16 | RP3/CN13 — Remappable I/O / Change Notification |
| 引脚 17 | RP2/CN14 — Remappable I/O / Change Notification |
| 引脚 18 | RP1/CN15 — Remappable I/O / Change Notification |
| 引脚 19 | RP0/CN16 — Remappable I/O / Change Notification |
| 引脚 20 | AVDD — Analog positive supply voltage |
| 引脚 21 | AVSS — Analog ground reference |
| 引脚 22 | AN0/CMP1A — Analog input / Comparator 1 input A |
| 引脚 23 | AN1/CMP1B — Analog input / Comparator 1 input B |
| 引脚 24 | AN2/CMP1C — Analog input / Comparator 1 input C |
| 引脚 25 | VDD — Positive supply voltage (3.0-3.6 V) |
| 引脚 26 | VSS — Ground reference |
| 引脚 27 | AN3/CMP2A — Analog input / Comparator 2 input A |
| 引脚 28 | AN4/CMP2B — Analog input / Comparator 2 input B |
| 引脚 29 | AN5/CMP2C — Analog input / Comparator 2 input C |
| 引脚 30 | AN6/CMP3A — Analog input / Comparator 3 input A |
| 引脚 31 | AN7/CMP3B — Analog input / Comparator 3 input B |
| 引脚 32 | AN8/CMP3C — Analog input / Comparator 3 input C |
| 引脚 33 | OPA1IN+/AN9 — Op-Amp 1 non-inverting input / Analog input |
| 引脚 34 | OPA1IN-/OPA1OUT — Op-Amp 1 inverting input / output |
| 引脚 35 | OPA2IN+/AN10 — Op-Amp 2 non-inverting input / Analog input |
| 引脚 36 | OPA2IN-/OPA2OUT — Op-Amp 2 inverting input / output |
| 引脚 37 | OSC1/CLKI — Crystal oscillator input / external clock |
| 引脚 38 | OSC2/CLKO — Crystal oscillator output |
| 引脚 39 | SOSCI — Secondary oscillator input (32.768 kHz) |
| 引脚 40 | SOSCO — Secondary oscillator output |
| 引脚 41 | VDD — Positive supply voltage (3.0-3.6 V) |
| 引脚 42 | VSS — Ground reference |
| 引脚 43 | PGED1/AN11 — Programming data / Analog input |
| 引脚 44 | PGEC1/AN12 — Programming clock / Analog input |
典型应用
PIC24EP32MC204-I/PT 适用于 6 应用s: Sensorless FOC BLDC/PMSM Motor Drive, Sensored Trapezoidal BLDC Commutation, Industrial Servo Drive and CNC Spindle Control, Drone Electronic Speed Controller (ESC), Appliance Motor Control (Pumps, Fans, Washing Machines), Solar Microinverter and Power Optimizer.
Sensorless FOC BLDC/PMSM Motor Drive
The PIC24EP32MC204-I/PT is purpose-built for sensorless field-oriented control (FOC) of BLDC and PMSM motors in 3-phase inverter topologies. The 70 MIPS DSP-extended core executes Clarke/Park transforms and PI controllers in single-cycle MAC instructions, supporting field update rates of 10-20 kHz needed for smooth torque and speed control across the entire RPM range. Two integrated op-amps measure phase current via shunt resistors directly into the ADC, eliminating external conditioning circuitry and reducing BOM count. The Motor Control PWM (MCPWM) peripheral generates complementary 3-phase outputs with programmable dead-time to drive gate drivers such as the MCP8024 or IRS2003. For drones, e-bikes, appliance pumps, or HVAC fans, the 32KB Flash holds Microchip's open-source FOC library plus application-specific commutation tables. Verified designs include Microchip's 3-Phase PMSM Motor Drive Reference Design with sensorless startup.
推荐
Sensored Trapezoidal BLDC Commutation
For Hall-sensor-equipped BLDC motors used in cooling fans, computer cooling, white goods, and e-bikes, the PIC24EP32MC204-I/PT delivers robust 6-step trapezoidal commutation at the 70 MIPS core speed. The three on-chip analog comparators with programmable references handle Hall-sensor edge detection and BEMF zero-cross sensing for sensorless backup modes, freeing CPU cycles for protection logic. Hardware PWM fault inputs (FLTA) latch overcurrent events within nanoseconds - critical for IGBT/MOSFET shoot-through prevention in industrial drives. The 32KB Flash is ample for state-machine commutation lookup tables, ramp-up profiles, and UART/I2C telemetry to a host controller. Reference design: Microchip AN1078 "Sensorless BLDC Control with Back-EMF Filtering."
推荐
Industrial Servo Drive and CNC Spindle Control
Industrial servo drives and CNC spindle controllers leverage the PIC24EP32MC204-I/PT's deterministic interrupt latency and DSP-extended math to execute cascaded position-velocity-current loops at 8-16 kHz. The 12-bit 1.2 Msps ADC samples feedback current and encoder signals with sub-microsecond jitter, while the 70 MIPS core runs PID controllers with cycle-accurate consistency - essential for smooth servo response without torque ripple. Two on-chip op-amps interface directly to high-side current shunts, eliminating the analog front-end that traditionally adds BOM cost. The 4KB SRAM holds encoder buffers, command trajectories, and FOC intermediate variables without external memory expansion. Industrial operating temperature (-40C to +85C) supports factory floor deployment; upgrade to PIC24EP32MC204-E/PT for outdoor cabinet applications up to +125C.
推荐
Drone Electronic Speed Controller (ESC)
Drone ESCs for multirotor platforms demand compact size, low weight, and high dynamic response - exactly what the PIC24EP32MC204-I/PT in a 10x10 mm TQFP-44 package provides. At 70 MIPS, the controller runs fast FOC loops at 24-32 kHz, delivering the rapid throttle response required for stable flight control. The integrated op-amps measure phase current directly, allowing accurate torque-per-amp control that translates to predictable motor response - critical when the flight controller demands precise RPM changes. Motor Control PWM with 7.7 ns resolution produces clean switching waveforms that minimize motor heating and EMI noise on the power harness. The 32KB Flash holds sensorless startup algorithms and per-motor calibration constants. Reference: Microchip AN1083 "Sensorless FOC for Drone Applications."
推荐
Appliance Motor Control (Pumps, Fans, Washing Machines)
White-goods appliances such as washing-machine drum drives, dishwasher circulation pumps, and HVAC blower fans benefit from the PIC24EP32MC204-I/PT's integrated motor-control peripherals and industrial temperature range. The dual op-amps interface to low-side current shunts, providing overload detection and stall protection required by IEC 60335 household-appliance safety standards. The Motor Control PWM with hardware fault shutdown (FLTA pin) latches gate-driver disable within 25 ns on overcurrent, protecting the IGBT module from short-circuit damage. The 32KB Flash supports energy-efficient sinusoidal commutation profiles that reduce audible noise and improve appliance energy ratings. With 4KB SRAM, the MCU runs both the motor-control loop and a UART/I2C interface to the appliance's main controller without external memory.
推荐
Solar Microinverter and Power Optimizer
Solar microinverters and DC-DC power optimizers for photovoltaic strings use the PIC24EP32MC204-I/PT to implement maximum power point tracking (MPPT) and grid-tie inverter control. The 70 MIPS DSP-extended core runs Perturb-and-Observe or Incremental Conductance MPPT at 10 kHz, tracking the PV panel's maximum power point across changing irradiance conditions. Three on-chip comparators monitor grid voltage zero-cross for line-frequency synchronization, while the ADC samples PV panel voltage and current with 12-bit accuracy. The integrated op-amps interface to current-sense transformers, providing isolated current measurement without external amplifier stages. The 32KB Flash stores MPPT control loops, anti-islanding protection per IEEE 1547, and grid-sync state machines. For residential solar with 250-400 W microinverters, the TQFP-44 footprint integrates cleanly into compact IP65 enclosures.
推荐
推荐产品汇总
工程参考数据： PIC24EP32MC204-I/PT ——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 | PIC24EP32MC204-E/PT | PIC24EP32GP204-I/PT | PIC24EP128MC204-I/PT | PIC24EP32MC203-I/PT |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 44-pin TQFP (10x10 mm) | 44-pin TQFP (10x10 mm) - same | 44-pin TQFP (10x10 mm) - same | 44-pin TQFP (10x10 mm) - same | 44-pin TQFP (10x10 mm) - same |
| Flash Memory | 32 KB | 32 KB - same | 32 KB - same | 128 KB - 4x more | 32 KB - same |
| RAM | 4 KB | 4 KB - same | 4 KB - same | 8 KB - 2x more | 4 KB - same |
| CPU Speed | 70 MIPS | 70 MIPS - same | 70 MIPS - same | 70 MIPS - same | 70 MIPS - same |
| Integrated Op-Amps | 2 | 2 - same | 0 - removed (general-purpose variant) | 2 - same | 2 - same |
| Comparators | 3 | 3 - same | 3 - same | 3 - same | 3 - same |
| 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) | -40 C to +85 C (Industrial) |
| PWM Type | Motor Control PWM (MCPWM) | Motor Control PWM (MCPWM) | Standard PWM (general-purpose variant) | Motor Control PWM (MCPWM) | Motor Control PWM (MCPWM) |
关键差异点
- Integrated dual op-amps for current sensing （对比 PIC24EP32GP204-I/PT)
- Motor Control PWM (MCPWM) peripheral （对比 PIC24EP32GP204-I/PT)
- 70 MIPS DSP-extended core at 70 MHz （对比 PIC24FJ32MC104-I/PT)
设计说明
The PIC24EP32MC204-I/PT operates from a single 3.0 V to 3.6 V supply and requires both VDD/VSS pairs (pins 9/10, 25/26, 41/42) plus AVDD/AVSS (pins 20/21) to be properly decoupled. Use a 10 uF bulk capacitor plus 100 nF ceramic decoupling placed within 5 mm of each VDD/VSS pair. Power-on-reset (POR) and brown-out-reset (BOR) require VDD to rise monotonically from 0 V to 3.3 V in less than 50 ms; an RC delay or sequenced LDO helps meet this in systems with multiple voltage rails.
Separate analog and digital ground planes with a single-point connection under the MCU. The AVDD pin should be filtered with a ferrite bead or small inductor (10 uH) from VDD plus a 100 nF ceramic bypass. Op-amp feedback traces (OPA1OUT to OPA1IN-) must be kept short (< 5 mm) to avoid oscillation. Route PWM outputs as 50 ohm microstrip traces on the top layer with a continuous ground plane beneath; place the gate driver within 25 mm of the MCU to minimize PWM propagation delay.
Use the PWM Fault input (FLTA) for hardware overcurrent protection - the MCPWM peripheral can shut down PWM outputs within 25 ns of a fault assertion, preventing IGBT shoot-through in 3-phase inverters. The op-amp outputs feed the ADC directly; add an RC low-pass filter (1 kohm, 100 pF) at each op-amp output to filter PWM-induced switching noise that would otherwise corrupt current measurements. Keep ADC trace lengths matched (within 5 mm) for accurate 12-bit conversions.
Do not leave the MCLR pin floating - tie it to VDD through a 10 kohm pull-up resistor and add a 100 nF capacitor to ground for noise immunity. The secondary oscillator (SOSC) pins (39/40) must be left open or terminated with a 32.768 kHz crystal; floating them carelessly can cause unpredictable behavior on low-power wakeup. When migrating from PIC24EP32MC204-I/PT to PIC24EP128MC204-I/PT, verify that code uses only the 44-pin peripheral subset - the 64-pin and 100-pin variants expose additional I/O that does not exist on the 44-pin TQFP.
The TQFP-44 (10x10 mm) package has a thermal resistance of approximately 60 C/W (theta_JA) on a standard JEDEC 4-layer PCB, but this drops to ~35 C/W with 1 sq-inch of continuous copper under the exposed thermal pad (the TQFP-44 has no thermal pad - use a copper flood with thermal vias to the bottom layer). At industrial -40 to +85 C operation the device typically consumes 50-100 mW during active FOC execution, so thermal management is rarely a concern unless the design seals the MCU in an enclosed appliance with no airflow.
合规信息
RoHS and REACH compliance per Microchip product page. AEC-Q100 not applicable for this Industrial-grade variant; for automotive applications use PIC24EP32MC204-E/PT or contact factory for AEC-Q100 qualification status. Halogen-free status not explicitly stated in web data.