PIC24EP32MC204-H/ML - 16-bit 70MIPS DSC 32KB Flash 44-QFN | Microchip
MPN: PIC24EP32MC204-H/ML ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $6.85 | $6.85 |
| 10 | $6.12 | $61.20 |
| 100 | $5.4 | $540.00 |
| 500 | $4.78 | $2,390.00 |
| 1,000 | $4.25 | $4,250.00 |
PIC24EP32MC204-H/ML Overview
A Digital Signal Controller (DSC) is a hybrid between a microcontroller and a DSP, combining deterministic interrupt-driven control with single-cycle MAC operations for real-time signal processing. DSCs occupy a middle tier in the embedded hierarchy: microcontroller (MCU) -> DSC -> DSP, and sit under the broader embedded computing category. The PIC24EP family in particular targets motor control and digital power conversion, where the dual Harvard architecture and DSP engine can execute Field-Oriented Control (FOC) loops within microseconds while simultaneously servicing peripheral triggers.
Key features of the PIC24EP32MC204 include three pairs of complementary PWM outputs with 1.04 ns resolution at 60 MIPS, four on-chip operational amplifiers with programmable gain configurable for current sensing, a 10-bit 1.1 Msps ADC with up to 13 analog input channels, and a CAN 2.0B module plus USB 2.0 full-speed OTG for industrial networking. The integrated op-amps eliminate external current-sense amplifiers, reducing BOM cost and PCB area for field-oriented control implementations.
Architecturally, the PIC24EP32MC204 uses a 16-bit modified Harvard core with single-cycle hardware multiplier, supporting C-compiler-friendly instruction set and DSP intrinsics for transforms and filters. Its 70 MIPS throughput at 3.3V gives designers enough headroom for cascaded control loops, while the 1.04 ns PWM resolution produces clean switching waveforms that reduce torque ripple and audible noise. Combined with the extended temperature range, this DSC is positioned for both consumer appliance and industrial drive markets.
Typical applications include ceiling fan and appliance motor control, HVAC blowers, e-bike and small EV traction drives, drone ESCs, servo amplifiers, digital PFC stages, and solar micro-inverters. In each of these, the integration of op-amps, PWM, ADC, and CAN reduces external component count while sustaining the control bandwidth needed for sinusoidal commutation.
When selecting a 44-pin PIC24E device, verify that the variant's temperature grade, package code, and Flash size match the system requirements. Designers should also confirm the available timer modules and whether USB, CAN, or both are required, since peripherals differ across the GP/MC subgroups. This page consolidates distributor pricing, verified drop-in alternatives, and application notes not found in the manufacturer datasheet alone.
Drop-in alternatives for PIC24EP32MC204-H/ML — 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 PIC24EP32MC204-H/ML (same form factor and footprint) — differing in ADC, Package, Program Memory (Flash), Comparators, Core Architecture.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC24EP64MC204-H/ML
✅ Drop-In📋 Reference alternative (not in catalog)
PIC24EP128MC204-H/ML
✅ Drop-In📋 Reference alternative (not in catalog)
PIC24EP32MC204-I/ML
✅ Drop-In✓ In Stock
$1.98 / Unit
View Datasheet →PIC24EP32MC204-E/ML
✅ Drop-In📋 Reference alternative (not in catalog)
PIC24EP256MC204-H/ML
✅ Drop-In📋 Reference alternative (not in catalog)
PIC24EP32MC204-H/ML Maximum Ratings & Electrical Characteristics
| Core Architecture | 16-bit PIC24E DSC (modified Harvard) |
| Family | PIC24EP Motor Control (MC) series |
| Program Memory (Flash) | 32 KB (10.7K x 24 words) |
| Data RAM | 4 KB |
| Maximum CPU Speed | 70 MIPS (60 MIPS at 3.3V typical) |
| Operating Voltage | 3.0 V to 3.6 V |
| Operating Temperature | -40 C to +150 C (-H grade) |
| Package | 44-pin QFN (8x8 mm) with exposed pad |
| Package Code | ML (QFN-44 EP) |
| PWM Channels | 6 outputs (3 complementary pairs), 1.04 ns resolution |
| ADC | 10-bit, up to 13 input channels, 1.1 Msps |
| On-chip Op-Amps | 4 programmable-gain amplifiers |
| Comparators | 3 (with DAC reference) |
| Communication | CAN 2.0B, USB 2.0 FS OTG, UART, SPI, I2C |
| Automotive Qualification | AEC-Q100 (H grade, extended temperature) |
| Mounting Type | Surface Mount |
| MSL Level | 3 (per JEDEC J-STD-020) |
| Lead-Free / RoHS | Yes / Compliant |
PIC24EP32MC204-H/ML ml (qfn-44 ep) Pin Configuration Guide
Pin configuration for PIC24EP32MC204-H/ML (ml (qfn-44 ep) package). This digital IC includes GPIO, communication interfaces (UART, SPI, I2C), and power pins. Refer to the manufacturer datasheet for alternate pin functions and configuration options. Essential for embedded system design and PCB layout.
No detailed pinout data available for PIC24EP32MC204-H/ML.
Refer to the datasheet for full pin configuration.
Typical Applications
PIC24EP32MC204-H/ML is suitable for 6 applications: BLDC / PMSM Motor Control, HVAC Blower and Fan Control, Drone Electronic Speed Controller (ESC), Solar Micro-Inverter, Servo and Robotics Drives, Automotive Auxiliary Pumps.
BLDC / PMSM Motor Control
The PIC24EP32MC204-H/ML is purpose-built for BLDC and PMSM motor control, integrating 6 PWM outputs (3 complementary pairs), 4 on-chip op-amps for current sensing, and a 10-bit 1.1 Msps ADC. In a typical Field-Oriented Control (FOC) loop, the device samples two phase currents via the integrated op-amps every 16.67 us (60 kHz update rate), runs Clarke/Park transforms in single-cycle DSP instructions, and updates the PWM duty cycle within the same PWM period. The -H grade to +150 C allows direct PCB mounting near the motor housing without thermal derating.
Recommended
HVAC Blower and Fan Control
The PIC24EP32MC204-H/ML's extended temperature range (-40 C to +150 C) makes it well suited for HVAC blower motor control where the controller board is exposed to high ambient temperatures inside the air handler. Its CAN interface (CAN 2.0B) integrates directly with HVAC bus systems, while the op-amps eliminate the need for external current-sense amplifiers in single-shunt or dual-shunt FOC configurations. Energy savings of 30-50% over PSC motors are typical with sinusoidal FOC at switching frequencies from 16 kHz to 25 kHz.
Recommended
Drone Electronic Speed Controller (ESC)
For multirotor drone ESCs, the PIC24EP32MC204-H/ML executes 32-bit Fast Fourier Transform (FFT) and adaptive motor-control algorithms at 70 MIPS while maintaining deterministic PWM switching frequencies up to 48 kHz. The device's 4 KB SRAM holds sensorless back-EMF observers and PLL state, while the integrated op-amps sense phase currents for closed-loop current control at start-up and during rapid throttle changes. The compact 8x8 mm QFN-EP footprint fits miniaturized 20x20 mm 4-in-1 ESC modules used in FPV racing drones.
Recommended
Solar Micro-Inverter
The PIC24EP32MC204-H/ML's high-speed 1.04 ns PWM resolution supports digital power conversion topologies such as solar micro-inverters, where it can drive a 200 kHz push-pull or H-bridge stage while running MPPT control loops every 50 ms. The 32 KB Flash accommodates grid-tie software including anti-islanding (UL 1741 / IEEE 1547), synchronous rectifier control, and PFC algorithms. The AEC-Q100 grade provides longevity assurance for outdoor solar installations subject to wide temperature swings.
Recommended
Servo and Robotics Drives
Servo amplifiers and robotic joint drives benefit from the PIC24EP32MC204-H/ML's deterministic interrupt response and CAN connectivity for multi-axis synchronization. The device can execute 8 kHz cascaded position-velocity-current loops with under 1 us jitter, while its 4 on-chip op-amps handle current sensing and its 10-bit ADC samples position sensors. The /ML QFN package is suitable for high-density servo PCB layouts, and the +150 C grade supports integration into sealed robotic joints where ambient temperatures can exceed 100 C.
Recommended
Automotive Auxiliary Pumps
The PIC24EP32MC204-H/ML's AEC-Q100 qualification and -40 C to +150 C temperature range make it ideal for automotive auxiliary pumps such as electric coolant pumps, oil pumps, and transmission pumps. The integrated CAN 2.0B interface connects to the vehicle bus for variable-speed command reception, while the op-amps and 6-channel PWM drive 3-phase BLDC pump motors in sinusoidal FOC. Functional safety implementations benefit from the PWM fault input and dead-time control, supporting ASIL-B compliance in pump control applications.
Recommended
Recommended Products Summary
Engineering reference data for PIC24EP32MC204-H/ML — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC24EP64MC204-H/ML | PIC24EP128MC204-H/ML | PIC24EP32MC204-I/ML | PIC24EP256MC204-H/ML |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 44-pin QFN (8x8 mm) with exposed pad | 44-pin QFN (8x8 mm) with exposed pad - same | 44-pin QFN (8x8 mm) with exposed pad - same | 44-pin QFN (8x8 mm) with exposed pad - same | 44-pin QFN (8x8 mm) with exposed pad - same |
| Flash Memory | 32 KB | 64 KB (+100%) | 128 KB (+300%) | 32 KB (same) | 256 KB (+700%) |
| RAM | 4 KB | 8 KB (+100%) | 16 KB (+300%) | 4 KB (same) | 16 KB (+300%) |
| Max CPU Speed | 70 MIPS | 70 MIPS (same) | 70 MIPS (same) | 70 MIPS (same) | 70 MIPS (same) |
| Temperature Grade | -40 C to +150 C (H grade) | -40 C to +150 C (same) | -40 C to +150 C (same) | -40 C to +85 C (I grade, lower) | -40 C to +150 C (same) |
| PWM Channels | 6 outputs (3 complementary pairs) | 6 outputs (same) | 6 outputs (same) | 6 outputs (same) | 6 outputs (same) |
| On-chip Op-Amps | 4 programmable gain | 4 (same) | 4 (same) | 4 (same) | 4 (same) |
| Automotive Qualification | AEC-Q100 (H grade) | AEC-Q100 (same) | AEC-Q100 (same) | Industrial (not AEC-Q100) | AEC-Q100 (same) |
| Approx. Unit Price (1k qty) | $4.25 | ~$4.80 | ~$5.50 | ~$3.95 | ~$6.10 |
Key Differentiators
- Extended -40 C to +150 C H-grade for harsh-environment automotive (vs PIC24EP32MC204-I/ML)
- Integrated motor-control analog front-end reduces BOM (vs PIC24EP32GP204-I/ML)
- High-resolution 1.04 ns PWM enables quiet motor operation (vs dsPIC33EP32MC204 (same family))
Design Notes
The 44-pin QFN-EP package relies on its 6x6 mm exposed pad as the primary thermal path. For continuous 70 MIPS operation with high PWM switching, solder the exposed pad to a copper pour of at least 1 sq inch on both top and inner PCB layers with thermal vias (0.3 mm diameter, 1.2 mm pitch). At -H grade (+150 C junction max), derate clock frequency above +125 C ambient to limit switching losses. The datasheet's theta_JC of approximately 4 C/W allows the pad to dissipate ~10 W when properly mounted.
Place decoupling capacitors (100 nF + 10 uF) within 2 mm of each VDD/VSS pair, and add a ferrite bead on the analog AVDD rail feeding the ADC and op-amps. Keep analog traces (current-sense op-amp outputs to ADC inputs) short and symmetric to minimize common-mode noise pickup. The PWM traces to gate drivers should be impedance-controlled (50 ohm) if length exceeds 25 mm to prevent ringing on motor-side MOSFET gates.
Avoid the common pitfall of using the PIC24EP32GP204 firmware on the PIC24EP32MC204 - the GP variant lacks op-amp control registers and PWM fault input registers. Also, when migrating between -I/-E/-H temperature grades, verify that any firmware assumptions about drift (e.g., ADC offset) remain valid at the upper temperature limit. Last, do not exceed the absolute maximum 3.6V VDD; the device is NOT 5V tolerant, and over-voltage events will damage internal I/O cells.
For CAN bus, use a shielded twisted pair and place 120 ohm termination resistors at both ends of the bus, with the MCP2561/MCP2562 transceiver physically within 50 mm of the DSC's CANTX/CANRX pins. For USB applications, the 90 ohm differential impedance must be maintained on D+/D- traces; add a common-mode choke (e.g., ACM2012) to suppress radiated emissions in motor-drive environments with high di/dt switching.
Compliance Information
AEC-Q100 qualified per Microchip product page for -H temperature grade. RoHS compliant and lead-free per Microchip environmental certification. Conflict minerals compliant per Microchip's CMRT filings.
