PIC24EP128MC202-H/SS - 16-bit 70 MIPS Motor Control MCU 128KB Flash SSOP-28 | Microchip
MPN: PIC24EP128MC202-H/SS ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $6.42 | $6.42 |
| 10 | $5.84 | $58.40 |
| 100 | $5.18 | $518.00 |
| 500 | $4.62 | $2,310.00 |
| 1,000 | $4.11 | $4,110.00 |
PIC24EP128MC202-H/SS Overview
A digital signal controller (DSC) blends a microcontroller's deterministic control capability with a DSP's mathematical throughput. The PIC24EP DSC architecture extends the PIC24F baseline with single-cycle MAC instructions, a 16x16 hardware multiplier, dual 40-bit accumulators, and zero-overhead looping, allowing real-time sensorless Field-Oriented Control (FOC) for BLDC, PMSM, and AC induction motors. The 70 MIPS budget is sufficient for both current-loop and slower speed-loop control on a single core.
Key features include three pairs of complementary PWM outputs with 1.04 ns PWM resolution, a 10/12-bit ADC with up to 6 channels and 500 ksps throughput, two on-chip operational amplifiers for current sensing, three analog comparators, and dedicated quadrature encoder interface (QEI) hardware. Communication peripherals cover I2C, SPI, UART, and CAN 2.0B with DeviceNet addressing support, allowing direct connection to industrial and automotive bus networks.
Typical applications span industrial motor drives, appliance variable-frequency drives, automotive HVAC blowers and pumps, drone ESCs, and servo amplifiers. The combination of AEC-Q100 qualification, high-temperature grade, and integrated op-amps reduces external component count and PCB area in safety-critical systems. When migrating from a generic PIC24F MCU, ensure the new code uses the EP-series peripheral remap and the enhanced PWM fault-handling registers; otherwise the firmware ports with minor modifications. The High-temperature grade suits underhood automotive use; if your environment stays below +85C, the -I/SS industrial grade provides equivalent peripherals at lower cost.
Drop-in alternatives for PIC24EP128MC202-H/SS — 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/SS (same form factor and footprint) — differing in Package, ADC, Core, Operating Temperature, PWM Channels.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC24EP128MC202-I/SS
✅ Drop-In📋 Reference alternative (not in catalog)
PIC24EP128MC202-E/SS
✅ Drop-In📋 Reference alternative (not in catalog)
PIC24EP128MC202-H/SP
✅ Drop-In✓ In Stock
$4.85 / Unit
View Datasheet →PIC24EP256MC202-I/SS
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33EP128MC202-I/SS
✅ Drop-In✓ In Stock
$3.44 / Unit
View Datasheet →dsPIC33EP128MC504-I/SS
✅ Drop-In📋 Reference alternative (not in catalog)
PIC24EP128MC202-H/SS Maximum Ratings & Electrical Characteristics
| Core Architecture | PIC24E 16-bit DSC |
| Program Memory (Flash) | 128 KB |
| Data RAM | 16 KB |
| Operating Frequency | 60 MHz (70 MIPS) |
| Supply Voltage (Vdd) | 3.0 V to 3.6 V |
| Operating Temperature Range | -40 C to +150 C (High-temperature grade) |
| I/O Pins | 21 |
| PWM Channels | 6 (3 complementary pairs) |
| PWM Resolution | 1.04 ns |
| ADC | 10/12-bit, up to 6 channels, 500 ksps |
| On-chip Operational Amplifiers | 2 |
| Analog Comparators | 3 |
| Quadrature Encoder Interface (QEI) | Yes |
| Communication Peripherals | UART, SPI, I2C, CAN 2.0B |
| Package | 28-pin SSOP (0.209", 5.30 mm width) |
| Automotive Qualification | AEC-Q100 |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
PIC24EP128MC202-H/SS Pin Configuration
| Pin 1 | MCLR — Master Clear (reset) input |
| Pin 2 | RA0 — Port A bit 0 / analog input AN0 |
| Pin 3 | RA1 — Port A bit 1 / analog input AN1 |
| Pin 4 | PGED1/RP0 — Programming data / remappable peripheral |
| Pin 5 | PGEC1/RP1 — Programming clock / remappable peripheral |
| Pin 6 | RP2 — Remappable peripheral pin |
| Pin 7 | RP3 — Remappable peripheral pin |
| Pin 8 | RP4 — Remappable peripheral pin |
| Pin 9 | VDD — Positive supply (3.0 V to 3.6 V) |
| Pin 10 | VSS — Ground reference |
| Pin 11 | RP5 — Remappable peripheral pin |
| Pin 12 | RP6 — Remappable peripheral pin |
| Pin 13 | RP7 — Remappable peripheral pin |
| Pin 14 | RP8 — Remappable peripheral pin |
| Pin 15 | RP9 — Remappable peripheral pin |
| Pin 16 | RP10 — Remappable peripheral pin |
| Pin 17 | RP11 — Remappable peripheral pin |
| Pin 18 | RP12 — Remappable peripheral pin (PWM1L) |
| Pin 19 | RP13 — Remappable peripheral pin (PWM1H) |
| Pin 20 | RP14 — Remappable peripheral pin |
| Pin 21 | VDD — Positive supply (3.0 V to 3.6 V) |
| Pin 22 | VSS — Ground reference |
| Pin 23 | RP15 — Remappable peripheral pin |
| Pin 24 | RP16 — Remappable peripheral pin |
| Pin 25 | RP17 — Remappable peripheral pin |
| Pin 26 | RP18 — Remappable peripheral pin |
| Pin 27 | AVDD — Analog positive supply |
| Pin 28 | AVSS — Analog ground reference |
Typical Applications
PIC24EP128MC202-H/SS is suitable for 6 applications: BLDC Motor Drive Control, PMSM Servo Amplifier, Automotive HVAC Blower Controller, Appliance Variable-Frequency Drive, Drone Electronic Speed Controller (ESC), Industrial Servo / CNC Spindle Drive.
BLDC Motor Drive Control
The PIC24EP128MC202-H/SS is purpose-built for BLDC motor drives. Its 70 MIPS PIC24E core executes sensorless Field-Oriented Control (FOC) with current-loop update rates exceeding 30 kHz on a single motor axis. The three complementary PWM pairs with 1.04 ns edge resolution and programmable dead-time directly drive three-phase inverter FETs. Two integrated on-chip op-amps condition shunt-resistor current feedback without external amplification, reducing BOM and PCB area. The hardware QEI accepts incremental encoder signals for sensored commutation at high RPM. AEC-Q100 qualification makes it suitable for underhood automotive BLDC pumps and fans.
Recommended
PMSM Servo Amplifier
The PIC24EP128MC202-H/SS handles PMSM servo loops with up to 70 MIPS of throughput, sufficient for cascaded current and velocity loops on a single core. The 10/12-bit 500 ksps ADC samples phase currents within one PWM period, while the hardware QEI captures 16-bit position at the encoder rate. Integrated comparators provide over-current hardware trip independent of the CPU, satisfying the fault response requirement for servo safety. The High-temperature -H grade supports underhood or industrial-cabinet operation up to +150 C ambient.
Recommended
Automotive HVAC Blower Controller
Automotive HVAC blowers require AEC-Q100 qualified MCUs with extended temperature range and quiet variable-speed control. The PIC24EP128MC202-H/SS delivers 70 MIPS and +150 C ambient operation to drive a BLDC or PMSM blower at variable speed via field-oriented control. The 16 KB RAM is sufficient for HVAC control logic plus motor state variables, while 128 KB Flash supports the application stack and LIN/CAN stack. The integrated CAN 2.0B peripheral provides direct connection to the vehicle body controller, eliminating an external transceiver bridge.
Recommended
Appliance Variable-Frequency Drive
Home appliances such as washing machines, dishwashers, and refrigerators use variable-frequency drives to improve energy efficiency. The PIC24EP128MC202-H/SS fits the BOM by integrating 128 KB Flash for the application stack, 16 KB RAM for FOC variables, six PWM channels for three-phase output, two op-amps for shunt current sensing, and a UART/I2C interface for control-panel communication. The 70 MIPS PIC24E core runs sensorless FOC for both single-axis pumps and multi-axis compressors without external DSP IC.
Recommended
Drone Electronic Speed Controller (ESC)
Multi-rotor drone ESCs demand high switching frequency for fast current-loop bandwidth at 48 kHz+ PWM. The PIC24EP128MC202-H/SS achieves this with three complementary PWM pairs at 1.04 ns resolution and 70 MIPS CPU bandwidth to run the current loop within each PWM cycle. Its 6-channel ADC provides phase-current sampling in a single conversion sequence. The High-temperature -H grade is beneficial in enclosed drone arms where MOSFET heat soaks back into the controller PCB during hover load. CAN/SPI peripherals allow connection to flight controller ESC protocol buses.
Recommended
Industrial Servo / CNC Spindle Drive
The PIC24EP128MC202-H/SS supports industrial servo and CNC spindle applications where AEC-Q100 stress testing plus +150 C ambient tolerance provide margin against the harsh cabinet environment near regenerative braking resistors. The 70 MIPS core executes cascaded current/velocity/position loops, the hardware QEI captures high-resolution encoder feedback at up to 32-bit position, and CAN 2.0B / UART / SPI enable integration into multi-axis industrial fieldbus networks. 128 KB Flash supports motion-profiling firmware plus a bootloader for field updates.
Recommended
Recommended Products Summary
Engineering reference data for PIC24EP128MC202-H/SS — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC24EP128MC202-I/SS | PIC24EP128MC202-E/SS | PIC24EP256MC202-I/SS | dsPIC33EP128MC202-I/SS |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 28-SSOP (5.30 mm) | 28-SSOP (5.30 mm) - same | 28-SSOP (5.30 mm) - same | 28-SSOP (5.30 mm) - same | 28-SSOP (5.30 mm) - same |
| Temperature Grade | -40 C to +150 C (High-temp) | -40 C to +85 C (Industrial) | -40 C to +125 C (Extended) | -40 C to +85 C (Industrial) | -40 C to +85 C (Industrial) |
| Flash Memory | 128 KB | 128 KB (same) | 128 KB (same) | 256 KB (double) | 128 KB (same) |
| RAM | 16 KB | 16 KB (same) | 16 KB (same) | 16 KB (same) | 16 KB (same) |
| CPU Performance | 70 MIPS @ 60 MHz | 70 MIPS @ 60 MHz (same) | 70 MIPS @ 60 MHz (same) | 70 MIPS @ 60 MHz (same) | 70 MIPS @ 60 MHz (same) |
| PWM Channels | 6 (3 complementary pairs) | 6 (same) | 6 (same) | 6 (same) | 6 (same) |
| ADC | 10/12-bit, 6 ch, 500 ksps | 10/12-bit, 6 ch, 500 ksps (same) | 10/12-bit, 6 ch, 500 ksps (same) | 10/12-bit, 6 ch, 500 ksps (same) | 10/12-bit, 6 ch, 500 ksps (same) |
| Automotive Grade (AEC-Q100) | Yes | Yes (Q100 base, I-temp) | Yes (Q100 base, E-temp) | Yes (Q100 base, I-temp) | Yes (Q100 base, I-temp) |
Key Differentiators
- Higher operating temperature grade (vs PIC24EP128MC202-I/SS)
- AEC-Q100 qualified with High-temp grade (vs PIC24EP128MC202-E/SS)
- Lower cost for memory-constrained applications (vs PIC24EP256MC202-I/SS)
Design Notes
The PIC24EP128MC202-H/SS SSOP-28 package has a thermal resistance (theta_JA) of approximately 71 C/W per Microchip packaging specifications. At 70 MIPS active with all peripherals enabled, core current is roughly 30 mA at 3.3 V. Estimated: at +125 C ambient, this would yield a junction temperature of 125 C + (30 mA * 3.3 V * 71 C/W) = 132 C, within the -H 150 C operating limit but with limited margin. For closed-enclosure industrial cabinets near heat sources, derate the ambient by 10-15 C or improve PCB copper area to reduce theta_JA.
Place 100 nF decoupling capacitors as close as possible to each VDD/VSS pin pair, with a 10 uF bulk capacitor at the board-level VDD supply rail. Connect AVDD/AVSS to the same supply but use a ferrite bead or small resistor in series with the analog supply for ADC noise isolation, since the 12-bit ADC achieves 500 ksps and requires clean analog rails. Estimated: a 100 nF X7R ceramic at each AVDD pin improves SNR by approximately 4-6 dB in noisy switching environments.
Route the three complementary PWM pairs (PWM1L/PWM1H, PWM2L/PWM2H, PWM3L/PWM3H) with matched trace lengths to avoid duty-cycle skew between high-side and low-side FETs. Keep PWM traces away from analog ADC input traces and away from the QEI input traces. The QEA/QEB signals to the encoder should be routed differentially with ground shielding for >100 kHz encoder frequencies. Pin 1 (MCLR) must have a 10 kohm pull-up to VDD and a 100 nF cap to ground for in-circuit serial programming (ICSP) stability.
Do not exceed 3.6 V on any VDD/AVDD pin; the PIC24E core does not have 5 V tolerance and sustained over-voltage damages internal ESD diodes. The integrated op-amps are not rail-to-rail; their output swing is limited to AVDD - 0.3 V, which constrains shunt-resistor scaling for low-voltage bus current sensing. When porting code from PIC24F to PIC24EP, verify PPS (Peripheral Pin Select) input/output mapping since remappable peripheral pins have changed register addresses on the EP series.
For sensorless FOC on a PMSM at low speeds (under 5 percent rated RPM), the back-EMF signal falls below the ADC quantization floor. Estimated: a 12-bit ADC reading a 1.5 V back-EMF at 5 percent speed yields only ~5 LSB, requiring high-frequency injection (HFI) techniques. Place the ADC sampling trigger precisely in the middle of the PWM off-time to reject switching noise; Microchip application note AN1078 documents the recommended sampling window and signal-conditioning circuit for sensorless FOC startup.
Compliance Information
AEC-Q100 qualified per Microchip product page; RoHS and REACH compliant per Microchip environmental compliance disclosures. Conflict-mineral declaration compliant per Microchip DRC declaration. Halogen-free status not explicitly disclosed in retrieved web data.
