PIC24EP256MC202-E/SO - 70 MIPS 256KB Flash Motor Control MCU | Microchip
MPN: PIC24EP256MC202-E/SO ✓ NakahandaPIC24EP256MC202-E/SO Ulas
What is a motor-control MCU? A motor-control microcontroller is a specialized MCU that integrates the high-resolution PWM generators, fast ADC, op-amps, and quadrature encoder interfaces required to drive three-phase BLDC, PMSM, and ACIM motors. It sits at the bottom of the power-electronics control hierarchy: power stage -> gate driver -> motor-control MCU -> sensors -> communication bus. This integration eliminates external analog front-end components, reducing BOM cost and improving noise immunity.
Key features include up to 2 PWM channels with 7.5 ns resolution, dual sample-and-hold 10-bit ADC at 1.1 Msps, two on-chip operational amplifiers for current sensing, and a Quadrature Encoder Interface (QEI). The device supports motor-control PWM, input capture, and output compare with dedicated time bases. A 16-channel DMA engine offloads CPU bandwidth, while peripheral pin select (PPS) remaps digital functions to any I/O.
The architecture pairs a modified Harvard bus with a DSP engine delivering single-cycle 16x16 MAC operations and zero-overhead loop control. With dual-partition Flash supporting live update and an on-chip temperature sensor, the device tolerates -40C to +125C ambient conditions. Memory protection and a configurable interrupt controller make it suitable for IEC 60730 Class B safety-compliant appliances.
Typical applications include field-oriented control (FOC) for PMSM/BLDC, HVAC compressor drivers, e-bike traction controllers, industrial servo drives, drone ESCs, and ceiling-fan inverter boards. On-chip op-amps reduce BOM cost and PCB area.
When designing with this device, derate the high-speed PWM duty to leave at least 50 ns dead time at the maximum 120 MHz system clock. Use the internal op-amp in unity-gain for current-shunt sensing with the dedicated ADC trigger from the PWM module.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, helping procurement and embedded engineers accelerate the design cycle for cost-sensitive 16-bit motor-control systems.
Mga alternatibo na pwedeng ilagay na PIC24EP256MC202-E/SO — parehas na package, pin-to-pin na katugmang. Hindi kasama ang mga bahagi ng iba't-ibang package na nangangailangan ng pagpapaayos ng PCB.
Variante sa Seri na ito
Katulad na modelo sa serye na katugma sa pagpasok PIC24EP256MC202-E/SO (parehas na form factor at footprint) — pagkakaiba sa Package, Core Architecture, ADC, Operating Temperature, Program Memory (Flash).
PIC24EP256MC202-I/SO
✅ Drop-InMagkontak para sa presyo
Tingnan ang Datasheet →PIC24EP256MC202T-E/SO
✅ Drop-InMagkontak para sa presyo
Tingnan ang Datasheet →DSPIC33EP256MC202-I/SO
✅ Drop-InMagkontak para sa presyo
Tingnan ang Datasheet →PIC24EP256GP202-E/SO
✅ Drop-In📋 Alternatibo na Reference (hindi sa katalogo)
PIC24EP128MC202-E/SO
✅ Drop-In📋 Alternatibo na Reference (hindi sa katalogo)
PIC24EP256MC202-E/SO Mga Pinakamataas na Rating at Electrical Characteristics
| Core Architecture | PIC24E (16-bit modified Harvard with DSP) |
| Maximum CPU Speed | 70 MIPS (60 MHz FOSC, with 1:1.16 PLL) |
| Program Memory (Flash) | 256 KB |
| Data Memory (SRAM) | 16 KB |
| Operating Voltage Range | 3.0 V to 3.6 V |
| Packhaging | 28-pin SOIC (SO, 7.50 mm body, 1.27 mm pitch) |
| Hanay ng Temperature na Operasyon | -40 C to +125 C (E = Extended) |
| ADC | 10-bit, up to 1.1 Msps, dual sample-and-hold |
| PWM Channels | High-Speed PWM with 7.5 ns resolution |
| On-Chip Op-Amps | 2 operational amplifiers |
| Quadrature Encoder Interface (QEI) | Yes |
| DMA Channels | 16-channel DMA |
| Communication Interfaces | UART, SPI, I2C, ECAN |
| Peripheral Pin Select (PPS) | Yes |
| Level ng MSL | MSL 3 (168 hours) |
| Tindminan RoHS | Compliant |
Pin Configuration ng PIC24EP256MC202-E/SO
| Pin 1 | MCLR — Master Clear (reset) input, active-low |
| Pin 2 | RP0/AN0 — Remappable I/O / Analog input 0 |
| Pin 3 | RP1/AN1 — Remappable I/O / Analog input 1 |
| Pin 4 | RP2/AN2/CMP1A — Remappable I/O / Analog input 2 / Comparator 1 output A |
| Pin 5 | RP3/AN3 — Remappable I/O / Analog input 3 |
| Pin 6 | VSS — Ground reference |
| Pin 7 | VDD — Positive supply voltage (3.0-3.6 V) |
| Pin 8 | RP4/AN4/QEA — Remappable I/O / Analog input 4 / QEI Phase A input |
| Pin 9 | RP5/AN5/QEB — Remappable I/O / Analog input 5 / QEI Phase B input |
| Pin 10 | RP6/AN6/INDX — Remappable I/O / Analog input 6 / QEI Index pulse |
| Pin 11 | RP7/AN7 — Remappable I/O / Analog input 7 |
| Pin 12 | RP8/PWM1L — Remappable I/O / PWM 1 Low output |
| Pin 13 | RP9/PWM1H — Remappable I/O / PWM 1 High output |
| Pin 14 | OSC1/CLKI/RA2 — Crystal oscillator input or external clock |
| Pin 15 | OSC2/CLKO/RA3 — Crystal oscillator output |
| Pin 16 | RP10/PWM2L — Remappable I/O / PWM 2 Low output |
| Pin 17 | RP11/PWM2H — Remappable I/O / PWM 2 High output |
| Pin 18 | RP12/PWM3L — Remappable I/O / PWM 3 Low output |
| Pin 19 | RP13/PWM3H — Remappable I/O / PWM 3 High output |
| Pin 20 | VDD — Positive supply voltage (3.0-3.6 V) |
| Pin 21 | VSS — Ground reference |
| Pin 22 | RP14/OC1 — Remappable I/O / Output Compare 1 |
| Pin 23 | RP15/OC2 — Remappable I/O / Output Compare 2 |
| Pin 24 | RP16/INT0 — Remappable I/O / External Interrupt 0 |
| Pin 25 | RP17/RTCC — Remappable I/O / Real-Time Clock Calendar |
| Pin 26 | RP18/U1RX — Remappable I/O / UART1 receive |
| Pin 27 | RP19/U1TX — Remappable I/O / UART1 transmit |
| Pin 28 | VDD — Positive supply voltage (3.0-3.6 V) |
Tipikal na mga Gamit
PIC24EP256MC202-E/SO ay nararapat para sa 6 aplikasyons: BLDC/PMSM Field-Oriented Control (FOC), HVAC Compressor Inverter, E-Bike / E-Scooter Traction Controller, Industrial Servo Drive, Drone Electronic Speed Controller (ESC), Ceiling Fan / Appliance BLDC Motor Drive.
BLDC/PMSM Field-Oriented Control (FOC)
The PIC24EP256MC202-E/SO's 70 MIPS PIC24E core with single-cycle 16x16 MAC executes Park and Clarke transforms for sensorless FOC at 8-16 kHz torque-loop rates, while the dual sample-and-hold 10-bit ADC samples two phase currents simultaneously from the on-chip op-amps - eliminating external current-sense amplifiers. The 7.5 ns high-speed PWM resolution supports 50 kHz switching with 250 ns dead time for 24V/48V PMSM drives. Its 256 KB Flash holds a full FOC state-machine plus speed PI controller with headroom for customer-specific parameter tables. Recommended companion: gate driver MCP8024 for 3-phase MOSFET bridges.
Inirekomenda
HVAC Compressor Inverter
Variable-speed HVAC compressors require sinusoidal torque control to minimize audible noise and maximize efficiency at part-load conditions. The PIC24EP256MC202-E/SO drives the compressor's PMSM via sensorless FOC using its high-speed PWM and integrated op-amps for current sensing, with the 256 KB Flash holding the entire compressor state machine (startup, steady-state, anti-surge, defrost, brownout recovery). The -40 C to +125 C extended temperature grade supports outdoor unit operation, and the ECAN interface links the compressor board to the indoor unit's master controller for demand-response commands.
Inirekomenda
E-Bike / E-Scooter Traction Controller
E-bike traction controllers demand high torque at low RPM, regenerative braking, and battery management - all within a compact, low-cost PCB. The PIC24EP256MC202-E/SO integrates 256 KB of Flash for full torque-vectoring firmware, dual on-chip op-amps for leg-current sensing without external amplifiers, and a QEI module for hub-motor Hall-sensor feedback or aftermarket encoder retrofits. Its 16 KB SRAM accommodates CAN-bus message buffers linking to the BMS, while peripheral pin select (PPS) routes UART and PWM to any GPIO for flexible PCB layout in crowded controller housings.
Inirekomenda
Industrial Servo Drive
Low-voltage (24-48 V) industrial servo drives benefit from the PIC24EP256MC202-E/SO's 70 MIPS performance, hardware QEI for incremental encoder feedback, and 256 KB Flash for cascaded position/velocity/current control loops. The DMA engine offloads ADC-to-memory transfers at 1.1 Msps, freeing CPU bandwidth for trajectory planning and EtherCAT/CANopen communication stacks. The 28-pin SOIC package suits compact integrated servo designs where PCB real estate is at a premium. Temperature grade -40 C to +125 C supports cabinet-free machine-mounting applications.
Inirekomenda
Drone Electronic Speed Controller (ESC)
The PIC24EP256MC202-E/SO is a strong fit for racing and cinematography drone ESCs in the 4-6S LiPo, 20-40 A continuous range. Its 7.5 ns PWM resolution supports 24-48 kHz switching for low-acoustic-noise sinusoidal commutation, while the 70 MIPS core runs fast (8-16 kHz) torque loops essential for stable multi-rotor flight control. On-chip op-amps reduce ESC PCB area and BOM cost - critical for weight-sensitive applications. DSHOT and OneShot protocol support is achievable in firmware thanks to flexible PWM and DMA-driven UART peripherals.
Inirekomenda
Ceiling Fan / Appliance BLDC Motor Drive
Cost-sensitive ceiling fans, range hoods, and bathroom exhaust fans increasingly adopt sinusoidal BLDC drives for energy compliance (e.g., EU Lot 6, China GB 21456-2025). The PIC24EP256MC202-E/SO's on-chip op-amps and high-speed PWM eliminate external analog ICs, while 256 KB of Flash supports both sensorless startup (I/F or BEMF) and steady-state FOC algorithms with built-in self-test routines. The -40 C to +125 C temperature grade tolerates enclosed-fixture ambient temperatures above 60 C, and the 28-pin SOIC package supports compact driver-board designs behind the motor housing.
Inirekomenda
Buod ng mga Inirekomendang Produkto
Impormasyon ng Talumpati sa Engineering for PIC24EP256MC202-E/SO — ikabit, gabay sa disenyo, at impormasyon ng pagsunod sa kautusan.
Paunawang Hanapin
Ikabit sa Mga Alternatibo
| Parametro | Ito ang Producto | PIC24EP256MC202-I/SO | PIC24EP256MC202T-E/SO | dsPIC33EP256MC202-I/SO | PIC24EP256GP202-E/SO | PIC24EP128MC202-E/SO |
|---|---|---|---|---|---|---|
| Package | SOIC-28 (SO) | SOIC-28 (SO) - same | SOIC-28 (SO) - same | SOIC-28 (SO) - same | SOIC-28 (SO) - same | SOIC-28 (SO) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | |
| Core / Architecture | PIC24E (16-bit, 70 MIPS) | PIC24E (16-bit, 70 MIPS) | dsPIC33E (16-bit DSP, 70 MIPS) | PIC24E (16-bit, 70 MIPS) | PIC24E (16-bit, 70 MIPS) | |
| Flash / SRAM | 256 KB / 16 KB | 256 KB / 16 KB | 256 KB / 16 KB | 256 KB / 16 KB | 128 KB / 8 KB | |
| Temperature Grade | E: -40 C to +125 C | I: -40 C to +85 C | I: -40 C to +85 C | E: -40 C to +125 C | E: -40 C to +125 C | |
| High-Speed PWM / Op-Amps / QEI | Yes / Yes / Yes | Yes / Yes / Yes | Yes / Yes / Yes + DSP engine | No / No / No (GP variant) | Yes / Yes / Yes | |
| DSP Engine | No | No | Yes (DSPIC33E superset ISA) | No | No |
Pangunahing mga Pagkakaiba
- On-chip dual operational amplifiers eliminate external current-sense ICs (kumpara saPIC24EP256GP202-E/SO)
- Extended -40 C to +125 C temperature grade vs industrial -40 C to +85 C (kumpara saPIC24EP256MC202-I/SO)
- 256 KB Flash with dual-partition live update vs 128 KB single-partition (kumpara saPIC24EP128MC202-E/SO)
Talaan ng Disenyo
Place a 100 nF decoupling capacitor as close as possible to each VDD pin (pins 7, 20, 28) and a 10 uF bulk capacitor near the MCU power pins. The 28-pin SOIC has three VDD pins that must all be connected; leaving any one floating causes internal logic errors. For high-current switching applications, add a ferrite bead between the MCU VDD and the noisy digital 3.3 V rail to isolate ADC reference noise from PWM-induced ground bounce. The PIC24EP256MC202 datasheet section 2.4 provides reference decoupling layouts.
Estimated: at 70 MIPS continuous operation with all peripherals active, the SOIC-28 package dissipates approximately 0.3-0.5 W. Thermal resistance theta_JA is approximately 80 C/W for the SOIC-28 on a 2-layer JEDEC test board, resulting in a 25-40 C junction temperature rise above ambient. For enclosed motor-drive housings above 85 C ambient, derate the CPU clock to 40 MIPS (32 MHz FOSC) or improve PCB copper pour under the exposed die pad region.
Do not apply input voltages above 3.6 V to any I/O pin - the PIC24EP family is NOT 5 V tolerant on digital I/O. Use a level translator (e.g., TXS0108E) when interfacing to 5 V sensors or drivers. When using the on-chip op-amps for current sensing, ensure the common-mode voltage stays within 0-VDD and add a 100 ns RC filter on each input to suppress PWM-induced transients. The PIC24EP256MC202 datasheet section 32 'Op-Amp/Comparator' details the supported configurations.
Impormasyon ng Pagsunod sa Kautusan
RoHS compliant per Microchip product page. Lead-free SOIC-28 package with matte-tin plating. Not AEC-Q100 qualified; for automotive under-hood applications consider dsPIC33EP256MC506 which is AEC-Q100 Grade 1. PIC24EP family is REACH compliant per EU declaration.
