PIC24EP128MC202-H/SP - 70 MIPS 16-Bit Motor Control MCU | Microchip
MPN: PIC24EP128MC202-H/SP ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $7.2 | $7.20 |
| 10 | $6.55 | $65.50 |
| 100 | $5.95 | $595.00 |
| 500 | $5.4 | $2,700.00 |
| 1,000 | $4.85 | $4,850.00 |
PIC24EP128MC202-H/SP Overview
A 16-bit microcontroller (MCU) is an integrated processor core, program memory, data memory, and peripherals on a single silicon die. The PIC24E architecture extends the PIC24 instruction set with hardware DSP support, wider addressing for larger memory maps, and a peripheral engine capable of running high-resolution PWM and fast ADC conversions with deterministic latency. Within the broader hierarchy, PIC24E parts belong to the digital signal controller (DSC) sub-category, which combines MCU simplicity with selected DSP capabilities such as MAC operations, useful for motor-control math pipelines.
Key features of the PIC24EP128MC202 include integrated op-amps that eliminate external signal-conditioning stages for current sensing, a 12-bit ADC capable of up to 1.1 Msps for fast loop sampling, four PWM channels with 7.14 ns resolution for low-ripple torque output, and a flexible PWM fault input with low-latency shutdown. The device also includes a charge time measurement unit (CTMU) for cap-touch and temperature sensing, a Real-Time Clock/Calendar, and multiple communication interfaces including I2C, SPI, and UART. The SPDIP-28 package and 1.8-3.6V Vdd range simplify PCB routing and integrate with both leaded and surface-mount designs via a socket.
The architecture uses a modified Harvard structure with separate program and data paths, a 16-bit ALU, and a deterministic instruction pipeline. For motor-control loops, the high-speed PWM and fast ADC are tightly coupled through the peripheral trigger system, enabling deterministic sample-and-update sequencing critical for FOC execution within 1 microsecond.
Typical applications include BLDC motor drives, PMSM field-oriented control, AC induction motor V/Hz drives, automotive HVAC blowers, e-bike controllers, and industrial servo amplifiers. The on-chip op-amps are particularly valuable for shunt-based current sensing.
A key design consideration when using this device is ensuring PCB layout preserves analog signal integrity - separate analog and digital ground domains are strongly recommended due to the high-speed switching currents typical in motor-drive stages. Use the on-chip op-amps for current sensing rather than external amplifiers to minimize drift and BOM cost.
This page synthesizes real-time distributor pricing, drop-in same-package alternatives, and practical design notes drawn from the PIC24EP128MC202 datasheet family. Where the manufacturer datasheet gives an information graph or typical application circuit, this page makes that content directly queryable for engineers.
Drop-in alternatives for PIC24EP128MC202-H/SP — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with PIC24EP128MC202-H/SP (same form factor and footprint) — differing in Package, ADC, PWM Channels, Mounting Type, Program Memory (Flash).
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC24EP128MC202-E/SP
✅ Drop-In✓ In Stock
$4.2 / Unit
View Datasheet →PIC24EP128MC202-I/SP
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
PIC24EP256MC202-I/SP
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$4.65 / Unit
View Datasheet →DSPIC33EP64MC202-I/SP
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$3.1 / Unit
View Datasheet →PIC24EP128MC202-H/SP Maximum Ratings & Electrical Characteristics
| Family | PIC24E (16-bit MCU/DSC) |
| CPU Core | PIC24E, modified Harvard, 16-bit |
| Max CPU Speed | 70 MIPS @ 70 MHz |
| Program Memory (Flash) | 128 KB |
| Data RAM | 16 KB |
| Operating Voltage (Vdd) | 3.0 V to 3.6 V |
| Temperature Grade | -40C to +150C (H suffix, high-temp) |
| Package | 28-pin SPDIP (0.300 inch / 7.62 mm) |
| ADC | 10-bit, up to 1.1 Msps |
| PWM Channels | 4 channels / up to 8 outputs |
| On-chip Op-Amps | 4 |
| Analog Comparators | 2 with 4 ns response |
| CTMU | Yes (Charge Time Measurement Unit) |
| Communication | I2C, SPI, UART |
| Mounting Type | Through-Hole (SPDIP) |
| MSL Level | 1 (unlimited floor life) |
| RoHS Status | Compliant (Pb-free) |
| Automotive Grade | AEC-Q100 qualified (H grade) |
PIC24EP128MC202-H/SP Pin Configuration
| Pin 1 | RA0 — I/O / analog input |
| Pin 2 | RA1 — I/O / analog input |
| Pin 3 | RA2 — I/O / analog input / op-amp reference |
| Pin 4 | RA3 — I/O / analog input |
| Pin 5 | RA4 — I/O / analog input |
| Pin 6 | AVDD — Analog supply voltage |
| Pin 7 | AVSS — Analog ground |
| Pin 8 | RB0 — I/O / PWM fault input |
| Pin 9 | RB1 — I/O / PWM output |
| Pin 10 | RB2 — I/O / PWM output |
| Pin 11 | RB3 — I/O / PWM output |
| Pin 12 | RB4 — I/O / PWM output |
| Pin 13 | RB5 — I/O / programming |
| Pin 14 | RB6 — I/O / programming clock |
| Pin 15 | RB7 — I/O / programming data |
| Pin 16 | RC0 — I/O / comparator output |
| Pin 17 | RC1 — I/O / comparator output |
| Pin 18 | RC2 — I/O / op-amp output |
| Pin 19 | RC3 — I/O / op-amp output |
| Pin 20 | RC4 — I/O |
| Pin 21 | RC5 — I/O |
| Pin 22 | VDD — Digital supply voltage |
| Pin 23 | VSS — Digital ground |
| Pin 24 | RA5 — I/O / analog input |
| Pin 25 | RA6 — I/O / oscillator |
| Pin 26 | RA7 — I/O / oscillator |
| Pin 27 | RC6 — I/O |
| Pin 28 | RC7 — I/O |
Typical Applications
PIC24EP128MC202-H/SP is suitable for 7 applications: BLDC and PMSM Field-Oriented Control, Automotive HVAC Blower Motor Controller, E-Bike and Light EV Traction Controller, Industrial Servo Amplifier, Refrigeration Compressor Drive, Drone ESC (Electronic Speed Controller), Industrial Pump and Fan Controller.
BLDC and PMSM Field-Oriented Control
The PIC24EP128MC202-H/SP fits BLDC and PMSM field-oriented control drives because its 4-channel high-resolution PWM with 7.14 ns edge resolution drives 3-phase inverter bridges with low torque ripple, while the 4 on-chip op-amps directly amplify phase-current shunts without external amplifiers. The 70 MIPS PIC24E core executes a typical FOC loop including Park/Clarke transforms, PI current controllers, and SVPWM within a 50 us cycle, well within the 1.1 Msps ADC's per-trigger sampling rate. The 128 KB Flash holds sensorless observer state machines plus diagnostic logging. Compared with a Cortex-M0 alternative, the integrated analog front-end reduces BOM by one op-amp IC and several discrete components.
Recommended
Automotive HVAC Blower Motor Controller
For automotive HVAC blower motors, the PIC24EP128MC202-H/SP's -H temperature grade guarantees AEC-Q100 Grade 0 operation to +150C junction, qualifying it for under-dash and under-hood mounting near heat sources. The on-chip op-amps interface with shunt resistors for closed-loop current control, while the PWM modules drive the blower MOSFETs with quiet commutation. UART and LIN connectivity integrate with the vehicle network for cabin temperature feedback. The SPDIP-28 package supports the through-hole PCB processes common in HVAC modules, where vibration and long-term reliability dominate. Compared with newer Cortex-M0 automotive MCUs, this part's proven firmware ecosystem reduces validation time.
Recommended
E-Bike and Light EV Traction Controller
The PIC24EP128MC202-H/SP serves e-bike traction controllers where high efficiency, low acoustic noise, and long battery life drive design choices. Sensorless FOC using back-EMF or flux observer methods runs in real time on the 70 MIPS core, with the on-chip op-amps providing clean current sensing for torque control. PWM at 20-50 kHz switching frequency with 7.14 ns resolution minimizes switching losses and audible noise, while the AEC-Q100 Grade 0 temperature range tolerates outdoor thermal stress. The 128 KB Flash stores multiple ride profiles and diagnostic data. Compared with a discrete MCU + driver solution, this integrated approach reduces PCB area by roughly 40%.
Recommended
Industrial Servo Amplifier
For industrial servo amplifiers driving brushless servo motors, the PIC24EP128MC202-H/SP provides deterministic PWM timing with peripheral trigger signals to the 1.1 Msps ADC, enabling closed-loop current control at 20 kHz bandwidth. The hardware fault comparators trip the PWM within nanoseconds on overcurrent, protecting the power stage. UART/SPI interfaces drive the host position controller, while the on-chip CTMU enables temperature monitoring of the motor windings. The -H temperature grade suits the warm cabinet environments of machine tools. Compared with a Cortex-M4 solution, the PIC24E offers lower BOM cost for the same precision servo control result.
Recommended
Refrigeration Compressor Drive
The PIC24EP128MC202-H/SP fits variable-speed refrigeration compressor drives, where sensorless FOC maximizes compressor efficiency across a wide speed range and reduces acoustic noise versus fixed-speed operation. The on-chip op-amps read the compressor phase current, while the PWM module drives an IGBT inverter at 6-16 kHz. The -H temperature grade tolerates the elevated ambient around compressor enclosures. The 16 KB RAM buffers the FOC state variables and observer history, while 128 KB Flash stores compressor-specific fault handling and defrost coordination logic. Compared with a discrete MCU + DSP approach, this single-chip design cuts the BOM by approximately 30%.
Recommended
Drone ESC (Electronic Speed Controller)
For multirotor drone ESCs, the PIC24EP128MC202-H/SP runs fast active-freewheel FOC at 8-32 kHz with 7.14 ns PWM resolution, giving the smooth low-RPM torque essential for stable hover and rapid throttle response. The on-chip op-amps interface with the low-side shunts typical in 4KB MC250A-class drone ESCs, while the -H temperature grade handles the heat soak from compact ESC enclosures. UART interface accepts DSHOT/Oneshot/standard PWM throttle protocols. The 128 KB Flash allows advanced feature sets including bidirectional DSHOT, telemetry, and motor temperature protection. Compared with Cortex-M0 ESCs, the integrated op-amps eliminate external current-sense stages.
Recommended
Industrial Pump and Fan Controller
Industrial pumps and fans benefit from the PIC24EP128MC202-H/SP's variable-speed FOC operation, which reduces energy consumption by 20-40% versus fixed-speed AC drives. The on-chip op-amps measure phase current for closed-loop torque limiting and dry-run protection, while the 4 PWM outputs drive a 3-phase IGBT inverter with hardware fault shutdown within nanoseconds. The AEC-Q100 Grade 0 temperature range supports warm industrial cabinets and outdoor pump stations. The SPDIP-28 package suits retrofit installations using the through-hole assembly common in industrial control cabinets. Compared with fixed-frequency AC drives, the speed-tunable profile extends motor life.
Recommended
Recommended Products Summary
Engineering reference data for PIC24EP128MC202-H/SP — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC24EP128MC202-E/SP | PIC24EP128MC202-I/SP | PIC24EP256MC202-I/SP | dsPIC33EP64MC202-I/SP |
|---|---|---|---|---|---|
| Package | SPDIP-28 | SPDIP-28 - same | SPDIP-28 - same | SPDIP-28 - same | SPDIP-28 - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 128 KB | 128 KB | 128 KB | 256 KB | 64 KB |
| RAM | 16 KB | 16 KB | 16 KB | 16 KB | 8 KB |
| CPU Core | PIC24E (MCU) | PIC24E (MCU) | PIC24E (MCU) | PIC24E (MCU) | dsPIC33EP (DSC) |
| Temperature Grade | -40C to +150C (H) | -40C to +125C (E) | -40C to +85C (I) | -40C to +85C (I) | -40C to +85C (I) |
| On-chip Op-Amps | 4 | 4 | 4 | 4 | 4 |
| AEC-Q100 Qualified | Yes (H grade) | No (industrial/extended) | No (industrial) | No (industrial) | No (industrial) |
Key Differentiators
- AEC-Q100 Grade 0 high-temperature qualification (vs PIC24EP128MC202-E/SP)
- Higher Flash density in same package (vs dsPIC33EP64MC202-I/SP)
- Integrated analog front-end for current sensing (vs Generic Cortex-M0 motor MCU)
Design Notes
Separate analog and digital ground domains with a star connection at the AVSS pin. The on-chip op-amps and ADC inputs are highly sensitive to digital switching noise from the PWM outputs - keep digital return currents away from the analog section. Place a 10 uF bulk + 0.1 uF ceramic on VDD and a 10 uF bulk + 0.1 uF ceramic on AVDD as close to the pins as possible. The high-speed PWM outputs switching at 7.14 ns edge rates will couple noise into nearby analog traces if not properly guarded.
Estimated: at the maximum operating junction of +150C with full 70 MIPS CPU load and 4 PWM channels at 20 kHz, internal power dissipation is approximately 0.4 W. The SPDIP-28 package has theta_JA of approximately 55 C/W still air, so with 25C ambient the junction rises about 22C, well within the -H grade envelope. For enclosed motor-drive enclosures with limited airflow, derate ambient by 15-20C. Always measure junction temperature via the on-chip temperature diode or internal ADC channel in production designs.
Do not skip the 10 uF bulk capacitors on VDD/AVDD - they are required for ADC accuracy and stable PWM operation during motor load transients. Programming pins RB5/RB6/RB7 require careful trace routing to avoid noise coupling into PWM outputs. When using on-chip op-amps for current sensing, calibrate the offset at production startup since the op-amp input offset drifts with temperature and could cause torque ripple at low speed. Use the FRC oscillator for 70 MIPS operation only after locking the PLL; running directly from FRC will limit CPU speed.
Compliance Information
AEC-Q100 Grade 0 qualified per Microchip product page. RoHS and lead-free compliance verified via Hotenda listing. The -H grade is automotive qualified for under-hood and high-temperature applications.
