PIC24EP64MC204-I/ML - 16-Bit 70 MIPS Motor Control MCU | Microchip
MPN： PIC24EP64MC204-I/ML ✓ 啟用中PIC24EP64MC204-I/ML 概覽
A 16-bit microcontroller (MCU) is a single-chip computer that executes instructions 16 bits at a time, offering higher code density, faster arithmetic, and richer peripheral integration than 8-bit predecessors. The PIC24EP family sits within Microchip's dsPIC33/PIC24E high-performance tier, bridging general-purpose control and DSP-class math. Within the broader taxonomy: 16-bit MCU -> microcontroller -> embedded processor -> semiconductor. Motor-control MCUs add specialized PWM, ADC sampling, and quadrature encoder interfaces beyond what general-purpose 16-bit parts provide.
Key features of the PIC24EP64MC204-I/ML include 64KB Flash / 8KB RAM, 70 MIPS CPU speed (verified by the 70MIPs spec; 60 MHz core clock on datasheet), 27 general-purpose timers, multiple communication peripherals (UART, SPI, I2C), and motor-control-specific high-resolution PWM outputs suitable for three-phase inverter drive. The device is offered in the industrial temperature grade (-40C to +85C).
Typical applications include BLDC motor control, PMSM field-oriented control (FOC), sensored/sensorless fan and pump drives, HVAC compressor control, small appliance motor drives, and industrial servo drive stages. The integrated high-speed PWM and ADC combine to support current-loop sampling with deterministic latency, a critical requirement for high-bandwidth torque control.
When designing with this device, allocate PCB ground copper directly under the exposed thermal pad (EP) of the 44-QFN package, solder it to a sufficient pad area, and route analog/digital grounds per Microchip's recommended PCB layout. The -I/ML suffix denotes industrial operating temperature range (-40C to +85C) and the 44-QFN package.
This page consolidates distributor pricing as of 2026-09-29, pin-compatible drop-in alternatives within the PIC24EP/dsPIC33 family, and practical motor-control design notes that supplement the manufacturer datasheet for embedded engineers.
直接替換替代品，適用於 PIC24EP64MC204-I/ML — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： PIC24EP64MC204-I/ML （相同外形與佔位） — 差異在於 Operating Temperature, ADC, Core Architecture, Package, CPU Speed.
PIC24EP64MC204-E/ML
✅ 直接替換聯絡詢價
查看資料表 →PIC24EP64MC204-H/ML
✅ 直接替換📋 參考替代品（不在目錄中）
DSPIC33EP64MC204-I/ML
✅ 直接替換聯絡詢價
查看資料表 →dsPIC33EP64MC204-E/ML
✅ 直接替換📋 參考替代品（不在目錄中）
PIC24EP64GP204-I/MV
✅ 直接替換聯絡詢價
查看資料表 →PIC24EP64MC204-I/ML 最大額定值與電氣特性
| Core | PIC24E (16-bit) |
| CPU Speed | 70 MIPS (60 MHz core clock) |
| Program Memory | 64 KB Flash (22K x 24) |
| Data RAM | 8 KB |
| Supply Voltage (VDD) | 3.0 V to 3.6 V |
| 工作溫度 | -40C to +85C (Industrial) |
| 封裝 | 44-pin QFN (8x8 mm) with exposed pad |
| 安裝類型 | Surface Mount |
| I/O Pins | 35 (functional); 83 raw I/O ports |
| Communication Peripherals | UART, SPI, I2C |
| Timers | 27 (nine 16-bit timers + capture/compare) |
| PWM Channels | Motor-control high-speed PWM |
| ROM Type | Flash |
| 資料匯流排寬度 | 16-bit (external: 8-bit per datasheet snippet) |
| RoHS 狀態 | Compliant |
| Lead-Free | Yes |
PIC24EP64MC204-I/ML 腳位配置
| 腳位 1 | RP15/PWM3H/PMD15/RB15 — Remappable I/O, PWM3H output, or port B bit 15 |
| 腳位 2 | RP14/PWM3L/PMD14/RB14 — Remappable I/O, PWM3L output, or port B bit 14 |
| 腳位 3 | RP13/PMD13/RB13 — Remappable I/O or port B bit 13 |
| 腳位 4 | RP12/PMD12/RB12 — Remappable I/O or port B bit 12 |
| 腳位 5 | RP11/PMD11/RB11 — Remappable I/O or port B bit 11 |
| 腳位 6 | RP10/PMD10/RB10 — Remappable I/O or port B bit 10 |
| 腳位 7 | RP9/PMD9/RB9 — Remappable I/O or port B bit 9 |
| 腳位 8 | RP8/PMD8/RB8 — Remappable I/O or port B bit 8 |
| 腳位 9 | VDD — Digital supply voltage (3.0-3.6V) |
| 腳位 10 | VSS — Digital ground |
| 腳位 11 | OSC1/CLKI/RC12 — Crystal oscillator input or clock input |
| 腳位 12 | OSC2/CLKO/RC15 — Crystal oscillator output or clock output |
| 腳位 13 | RP0/SCL1/PMD0/RB0 — Remappable I/O, I2C1 SCL, or port B bit 0 |
| 腳位 14 | RP1/SDA1/PMD1/RB1 — Remappable I/O, I2C1 SDA, or port B bit 1 |
| 腳位 15 | RP2/SDA2/PMD2/RB2 — Remappable I/O, I2C2 SDA, or port B bit 2 |
| 腳位 16 | RP3/SCL2/PMD3/RB3 — Remappable I/O, I2C2 SCL, or port B bit 3 |
| 腳位 17 | RP4/U1RTS/PMD4/RB4 — Remappable I/O, UART1 RTS, or port B bit 4 |
| 腳位 18 | RP5/U1CTS/PMD5/RB5 — Remappable I/O, UART1 CTS, or port B bit 5 |
| 腳位 19 | RP6/U1TX/PMD6/RB6 — Remappable I/O, UART1 TX, or port B bit 6 |
| 腳位 20 | RP7/U1RX/PMD7/RB7 — Remappable I/O, UART1 RX, or port B bit 7 |
| 腳位 21 | AVDD — Analog supply voltage (3.0-3.6V) |
| 腳位 22 | AVSS — Analog ground |
| 腳位 23 | AN0/CMP1A/RA0 — Analog input 0, comparator input, port A bit 0 |
| 腳位 24 | AN1/CMP1B/RA1 — Analog input 1, comparator input, port A bit 1 |
| 腳位 25 | AN2/CMP2A/RA2 — Analog input 2, comparator input, port A bit 2 |
| 腳位 26 | AN3/CMP2B/RA3 — Analog input 3, comparator input, port A bit 3 |
| 腳位 27 | AN4/CMP3A/RA4 — Analog input 4, comparator input, port A bit 4 |
| 腳位 28 | PWM1H/RE0 — PWM1 high-side output or port E bit 0 |
| 腳位 29 | PWM1L/RE1 — PWM1 low-side output or port E bit 1 |
| 腳位 30 | PWM2H/RE2 — PWM2 high-side output or port E bit 2 |
| 腳位 31 | PWM2L/RE3 — PWM2 low-side output or port E bit 3 |
| 腳位 32 | PWM3H/RE4 — PWM3 high-side output or port E bit 4 |
| 腳位 33 | PWM3L/RE5 — PWM3 low-side output or port E bit 5 |
| 腳位 34 | FLTA1/RA8 — PWM fault input A1 or port A bit 8 |
| 腳位 35 | FLTA2/RA9 — PWM fault input A2 or port A bit 9 |
| 腳位 36 | SYNCI1/RP22/RB7 — PWM sync input or remappable I/O |
| 腳位 37 | SYNCO1/RP23/RB8 — PWM sync output or remappable I/O |
| 腳位 38 | RP16/U1TX/RC12 — Remappable I/O, UART1 TX, or port C bit 12 |
| 腳位 39 | RP17/U1RX/RC13 — Remappable I/O, UART1 RX, or port C bit 13 |
| 腳位 40 | RP18/U2TX/RC14 — Remappable I/O, UART2 TX, or port C bit 14 |
| 腳位 41 | RP19/U2RX/RC15 — Remappable I/O, UART2 RX, or port C bit 15 |
| 腳位 42 | RP24/SDA1/PMD12/RB12 — Remappable I/O, I2C1 SDA, or port B bit 12 |
| 腳位 43 | RP25/SCL1/PMD13/RB13 — Remappable I/O, I2C1 SCL, or port B bit 13 |
| 腳位 44 | MCLR — Master Clear (reset) input |
典型應用
PIC24EP64MC204-I/ML 適用於 6 應用s: BLDC Motor Control (Sensorless), PMSM Field-Oriented Control (FOC), HVAC Compressor and Fan Control, Industrial Servo Drive Stages, Drone Propulsion ESCs (Electronic Speed Controllers), Small Appliance Variable-Speed Drives.
BLDC Motor Control (Sensorless)
The PIC24EP64MC204-I/ML is purpose-built for sensorless BLDC motor control, leveraging its integrated high-resolution PWM (PWM1H/L through PWM3H/L) and 70 MIPS CPU to execute back-EMF zero-crossing detection in real time. With 64 KB Flash and 8 KB RAM, the MCU fits Microchip's AN1078 reference algorithm plus a small application layer. The 3.0-3.6V supply and -40C to +85C industrial temperature grade cover small appliance, ceiling fan, and HVAC blower deployments. Designers typically allocate 10-15 KB for the FOC/sensorless routine, leaving ample Flash for telemetry and stack monitoring.
推薦
PMSM Field-Oriented Control (FOC)
For permanent-magnet synchronous motor (PMSM) FOC drives, the PIC24EP64MC204-I/ML delivers deterministic PWM-to-ADC synchronization required for Park/Clarke transforms and current-loop execution under 16 us per cycle. The 70 MIPS PIC24E core runs the SVM and PI loops within a single PWM period, while the high-speed 10-bit ADC samples phase currents synchronously. Typical uses include e-bike traction motors, robotic actuators, and servo-pump drives where smooth torque ripple and high efficiency are critical. Firmware builds on Microchip's AN1299 reference, fitting comfortably in 64 KB Flash.
推薦
HVAC Compressor and Fan Control
In HVAC compressor and fan applications, the PIC24EP64MC204-I/ML drives single-phase or three-phase BLDC compressors with smooth torque ramp-up, protecting refrigerant circuits from surge currents at startup. The industrial -40C to +85C range covers outdoor unit deployments in commercial HVAC. The device's 35 functional I/O accommodate thermistor arrays, pressure transducers, and UART links to the indoor controller. Microchip's MotorBench Development Suite provides auto-tuning for FOC, shortening time-to-market for variable-speed compressor drives.
推薦
Industrial Servo Drive Stages
For low-to-medium-power industrial servo drives (up to several hundred watts), the PIC24EP64MC204-I/ML executes trapezoidal and sinusoidal commutation with encoder feedback via QEI (Quadrature Encoder Interface). The PIC24E core handles PID position/velocity loops at kHz rates, while the high-speed PWM outputs switch the inverter at up to 50 kHz. The 44-QFN footprint fits compact IPM modules and small conveyor or pick-and-place servo drives. The UART/SPI/I2C peripherals interface to host controllers for command and telemetry.
推薦
Drone Propulsion ESCs (Electronic Speed Controllers)
In consumer and prosumer drone ESCs, the PIC24EP64MC204-I/ML drives four BLDC motors at 24-48 kHz PWM with sinusoidal center-aligned modulation for low acoustic noise. Its 70 MIPS throughput sustains per-motor FOC with cross-coupling compensation, while 8 KB RAM is enough for sensorless observer state variables. The 44-QFN 8x8 mm footprint fits compact 4-in-1 ESC boards, and the industrial temp range covers harsh flight conditions. UART/SPI peripherals interface to flight controllers for throttle and telemetry.
推薦
Small Appliance Variable-Speed Drives
Variable-speed small appliances (washers, dryers, blenders, vacuum cleaners) leverage the PIC24EP64MC204-I/ML's BLDC/PMSM control capability with quiet operation and high efficiency. The 64 KB Flash stores proprietary motor-tuning profiles, user-interface state machines, and safety routines (overcurrent, overvoltage, stall detection). The -40C to +85C operating range handles appliance under-cabinet thermal loads, and the 44-QFN package's small footprint enables compact motor-control PCBs co-located with the motor. UART peripherals enable diagnostics ports.
推薦
推薦產品摘要
工程參考資料，適用於 PIC24EP64MC204-I/ML — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | PIC24EP64MC204-E/ML | PIC24EP64MC204-H/ML | dsPIC33EP64MC204-I/ML | dsPIC33EP64MC204-E/ML | PIC24EP64GP204-I/MV |
|---|---|---|---|---|---|---|
| Package | 44-QFN (8x8 mm) | 44-QFN (8x8 mm) - same | 44-QFN (8x8 mm) - same | 44-QFN (8x8 mm) - same | 44-QFN (8x8 mm) - same | QFN-44 variant |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core | PIC24E (16-bit, no DSP MAC) | PIC24E (16-bit) | PIC24E (16-bit) | dsPIC33E (16-bit with DSP MAC) | dsPIC33E (16-bit with DSP MAC) | PIC24E (general-purpose) |
| CPU Speed | 70 MIPS (60 MHz) | 70 MIPS (60 MHz) | 70 MIPS (60 MHz) | 70 MIPS (60 MHz) | 70 MIPS (60 MHz) | 70 MIPS (60 MHz) |
| Flash Memory | 64 KB | 64 KB | 64 KB | 64 KB | 64 KB | 64 KB |
| RAM | 8 KB | 8 KB | 8 KB | 8 KB | 8 KB | 8 KB |
| Operating Temperature | -40C to +85C (Industrial) | -40C to +125C (Extended) | -40C to +150C (Higher) | -40C to +85C (Industrial) | -40C to +125C (Extended) | -40C to +85C (Industrial) |
| DSP MAC Engine | No | No | No | Yes | Yes | No |
| Motor-Control PWM | Yes (high-resolution, 6 outputs) | Yes | Yes | Yes | Yes | Limited (general-purpose PWM only) |
| Approx. Unit Price (qty 1000) | $4.85 | $5.20 | $5.50 | $5.95 | $6.30 | $4.20 |
主要差異化特點
- Industrial temperature grade with broad distributor availability (對比PIC24EP64MC204-E/ML)
- Optimized for sensorless motor control algorithms (對比PIC24EP64GP204-I/MV)
- Lower cost vs DSP variant when MAC is not required (對比dsPIC33EP64MC204-I/ML)
設計說明
Estimated: The 44-QFN (8x8 mm) package has a theta_JA of approximately 30 C/W on a standard 4-layer JEDEC PCB. Solder the exposed thermal pad (EP) directly to a continuous ground copper pour of at least 1 square inch with multiple thermal vias to inner ground planes. For applications where the MCU dissipates significant current from internal peripherals (ADC, I/O switching), this ground pour keeps junction temperature well below the +85C industrial limit.
Place a 100 nF X7R ceramic decoupling capacitor within 5 mm of each VDD/VSS pair, plus a 10 uF bulk tantalum or ceramic near the package. Separate analog AVDD/AVSS supply pins should be filtered with a ferrite bead from the digital VDD rail to avoid digital switching noise coupling into ADC samples. Route PWM outputs (PWM1H/L-PWM3H/L) with short, matched-length traces to the gate-driver inputs; mismatched lengths cause PWM skew that degrades motor efficiency at high PWM frequencies.
When using the -I/ML industrial variant, do not assume firmware compatibility with non-motor-control PIC24E parts: the peripheral pin mapping differs, and PWM registers use motor-control-specific layouts (PWM1CON, PWMCON2). Always include ICSP programming header pads (PGEDx, PGCx, MCLR) accessible to the test fixture even in space-constrained designs; this avoids costly depopulation for field firmware updates. For sensorless FOC at startup, ensure the MCU clock is stable (PLL locked) before enabling PWM output - premature PWM start can cause shoot-through in the inverter.
Keep ADC analog traces (AN0-AN4) physically separated from PWM switching traces by at least 3x the trace-to-trace spacing; otherwise high dV/dt on PWM lines can couple into ADC measurements via parasitic capacitance, corrupting current-loop feedback. Use a dedicated analog ground island under ADC pins, joined to digital ground at a single point near the MCU exposed pad. This is essential for stable current-sensing at PWM frequencies above 20 kHz.
合規資訊
RoHS and lead-free compliant per Microchip product page. AEC-Q100 qualification not applicable for -I industrial grade; choose PIC24EP64MC204-E/ML or -H/ML for automotive-extended temperature ranges. Conflict-minerals compliance per Microchip policy.
