PIC24EP32MC204T-E/ML - 16-bit 60 MIPS Motor Control MCU | Microchip
MPN: PIC24EP32MC204T-E/ML ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $5.12 | $5.12 |
| 10 | $4.61 | $46.10 |
| 100 | $4.09 | $409.00 |
| 500 | $3.68 | $1,840.00 |
| 1,000 | $3.27 | $3,270.00 |
PIC24EP32MC204T-E/ML Overview
A microcontroller (MCU) is a single-chip computer containing a CPU core, program and data memory, and programmable peripherals. The PIC24E family uses a 16-bit modified Harvard architecture with a fast 2-cycle multiplier and DSP-friendly instructions, placing it in the broader hierarchy of digital signal controllers (DSC) -> microcontroller -> embedded processor -> semiconductor. The PIC24E line bridges 8-bit PIC MCUs and 32-bit parts, targeting applications that need deterministic real-time control without paying for Cortex-M class resources.
Key features of this variant include 6 high-speed PWM channels with 7.5 ns resolution, four 10-bit ADC modules sharing 32 sample-and-hold channels, two op amps configurable as gain stages or comparators, two comparators, a quadrature encoder interface (QEI), and 35 I/O pins tolerant to 5 V. The automotive-grade -E temperature range spans -40C to +125C and the part carries AEC-Q100 qualification for under-hood and chassis deployments.
The PIC24EP32MC204T-E/ML is built on a low-power CMOS process and includes a 4-channel DMA controller that offloads data movement from the CPU, leaving MIPS available for control loops. The peripheral trigger generator (PTG) chains ADC, PWM, and DMA events without CPU intervention, enabling deterministic timing critical for field-oriented control (FOC) of PMSM/BLDC motors.
Typical applications include automotive HVAC blowers, electric water pumps, fuel and oil pumps, BLDC and PMSM motor drives, e-bike controllers, and small industrial servo drives. The combination of QEI, op amps, and high-resolution PWM in a single QFN-44 footprint reduces the BOM and PCB area required for a complete sensorless or sensored FOC drive.
When designing with this part, budget peripheral remapping carefully - many analog and digital pins are multiplexed - and reserve the exposed pad for thermal relief because motor-drive firmware can keep the MCU continuously active. The -E temperature grade and AEC-Q100 qualification also make this the right choice when automotive certification is required.
This page synthesizes verified distributor pricing, same-family drop-in alternatives, and practical design notes that go beyond the manufacturer datasheet to help engineers select and qualify this part faster.
Drop-in alternatives for PIC24EP32MC204T-E/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 PIC24EP32MC204T-E/ML (same form factor and footprint) — differing in ADC, Comparators, Operating Temperature, Package, Communication.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC24EP32MC204-I/ML
✅ Drop-In📋 Reference alternative (not in catalog)
PIC24EP32MC204-E/ML
✅ Drop-In📋 Reference alternative (not in catalog)
PIC24EP32MC204-H/ML
✅ Drop-In✓ In Stock
$4.25 / Unit
View Datasheet →PIC24EP64MC204-I/ML
✅ Drop-In✓ In Stock
$4.85 / Unit
View Datasheet →PIC24EP256MC204-E/ML
✅ Drop-In✓ In Stock
$5.21 / Unit
View Datasheet →PIC24EP32MC204T-E/ML Maximum Ratings & Electrical Characteristics
| Core Architecture | PIC24E (16-bit modified Harvard) |
| Program Memory (Flash) | 32 KB (10.7K x 24 words) |
| Data Memory (SRAM) | 2 KB |
| Max CPU Speed | 60 MIPS (70 MIPS for select instructions) |
| Operating Voltage (VDD) | 3.0 V to 3.6 V |
| Operating Temperature | -40C to +125C (E grade, AEC-Q100) |
| Package | 44-pin QFN (8x8 mm) with exposed pad |
| GPIO Count | 35 (5 V tolerant) |
| ADC | 4x 10-bit ADC modules, up to 32 analog inputs |
| PWM Channels | 6 high-speed PWM (7.5 ns resolution) |
| Op Amps | 2 on-chip |
| Comparators | 2 |
| Quadrature Encoder Interface (QEI) | 1 |
| DMA Channels | 4 |
| Communication Interfaces | I2C, SPI, UART/USART, IrDA, LINbus |
| Mounting Type | Surface Mount |
| MSL Level | 3 (168 hours) |
| RoHS Status | Compliant |
| AEC-Q100 Qualification | Yes (Automotive grade) |
PIC24EP32MC204T-E/ML Pin Configuration
| Pin 1 | RP5/RB5 — Remappable I/O / general-purpose digital |
| Pin 2 | VSS — Ground reference |
| Pin 3 | OSC1/CLKI — Crystal oscillator input or external clock |
| Pin 4 | OSC2/CLKO — Crystal oscillator output |
| Pin 5 | VDD — Core supply voltage (3.0 V to 3.6 V) |
| Pin 6 | PWM1L — PWM channel 1 low-side output |
| Pin 7 | PWM1H — PWM channel 1 high-side output |
| Pin 8 | PWM2L — PWM channel 2 low-side output |
| Pin 9 | PWM2H — PWM channel 2 high-side output |
| Pin 10 | PWM3L — PWM channel 3 low-side output |
| Pin 11 | PWM3H — PWM channel 3 high-side output |
| Pin 12 | VSS — Ground reference |
| Pin 13 | VDD — Core supply voltage |
| Pin 14 | AN0/RA0 — Analog input 0 / general-purpose I/O |
| Pin 15 | AN1/RA1 — Analog input 1 / general-purpose I/O |
| Pin 16 | AN2/CMP1A — Analog input 2 / comparator 1 input A |
| Pin 17 | AN3/CMP1B — Analog input 3 / comparator 1 input B |
| Pin 18 | AN4/OPA1IN+ — Analog input 4 / op amp 1 non-inverting input |
| Pin 19 | AN5/OPA1IN- — Analog input 5 / op amp 1 inverting input |
| Pin 20 | AN6/OPA1OUT — Analog input 6 / op amp 1 output |
| Pin 21 | AN7/OPA2IN+ — Analog input 7 / op amp 2 non-inverting input |
| Pin 22 | AN8/OPA2IN- — Analog input 8 / op amp 2 inverting input |
| Pin 23 | AN9/OPA2OUT — Analog input 9 / op amp 2 output |
| Pin 24 | AVSS — Analog ground |
| Pin 25 | AVDD — Analog supply voltage |
| Pin 26 | QEA/RC1 — Quadrature encoder A / general-purpose I/O |
| Pin 27 | QEB/RC2 — Quadrature encoder B / general-purpose I/O |
| Pin 28 | INDX/RC3 — Quadrature index / general-purpose I/O |
| Pin 29 | U1RX/RF0 — UART1 receive / general-purpose I/O |
| Pin 30 | U1TX/RF1 — UART1 transmit / general-purpose I/O |
| Pin 31 | SDA1/RG3 — I2C1 data / general-purpose I/O |
| Pin 32 | SCL1/RG2 — I2C1 clock / general-purpose I/O |
| Pin 33 | SDO1/RG8 — SPI1 serial data out / general-purpose I/O |
| Pin 34 | SDI1/RG7 — SPI1 serial data in / general-purpose I/O |
| Pin 35 | SCK1/RG6 — SPI1 clock / general-purpose I/O |
| Pin 36 | SS1/RG9 — SPI1 slave select / general-purpose I/O |
| Pin 37 | TMS/RB13 — JTAG test mode select / ICD |
| Pin 38 | TCK/RB12 — JTAG test clock / ICD |
| Pin 39 | TDO/RB11 — JTAG test data out |
| Pin 40 | TDI/RB10 — JTAG test data in |
| Pin 41 | MCLR — Master clear reset (active low) |
| Pin 42 | INT0/RD8 — External interrupt 0 / general-purpose I/O |
| Pin 43 | PGEC1/RB6 — ICSP clock / general-purpose I/O |
| Pin 44 | PGED1/RB7 — ICSP data / general-purpose I/O |
| Pin EP | EP — Exposed thermal pad - solder to PCB ground for thermal relief |
Typical Applications
PIC24EP32MC204T-E/ML is suitable for 6 applications: Automotive HVAC Blower Motor Drive, Electric Water Pump / Coolant Pump, E-Bike BLDC Motor Controller, Industrial Servo / Step-Servo Drive, Drones and Robotics BLDC Drives, Battery-Powered Cordless Tools.
Automotive HVAC Blower Motor Drive
The PIC24EP32MC204T-E/ML is well matched to automotive HVAC blower motor control. Its 6 high-speed PWM channels with 7.5 ns resolution enable quiet 18 kHz+ switching above the audible band, while the two on-chip op amps condition shunt-current signals for closed-loop torque or airflow regulation. AEC-Q100 qualification plus -40C to +125C operation lets the part sit behind the dashboard where ambient temperatures exceed 85C. The 35 GPIOs handle a single-wire LIN slave interface to the HVAC module, plus a switch to select between recirculation and fresh-air modes. Compared to a discrete MCU plus external op-amp IC design, integrating the analog front-end saves roughly 25 percent of PCB area, critical for blower modules packaged inside the HVAC box.
Recommended
Electric Water Pump / Coolant Pump
Brushless DC coolant pumps in 48 V mild-hybrid systems need deterministic torque control and small PCB area. The PIC24EP32MC204T-E/ML delivers this with its quadrature encoder interface for sensored trapezoidal or FOC commutation, plus 32 KB Flash to hold state-machine plus a sensorless observer. At a 60 MIPS core speed the FOC loop completes inside 16 us, leaving ample margin for housekeeping tasks like temperature estimation. The exposed pad on the 44-pin QFN dissipates around 250 mW continuous, well within thermal limits when mounted on the pump housing's thermal vias. AEC-Q100 qualification also ensures the part withstands thermal cycling from cold-soak to hot coolant environments.
Recommended
E-Bike BLDC Motor Controller
E-bike torque-sensing bottom brackets and rear-hub BLDC motors demand high-resolution PWM and a compact footprint, both of which the PIC24EP32MC204T-E/ML delivers. The on-chip op amps amplify the strain-gauge pedal sensor directly, while the QEI reads the hub cadence sensor. With 6 PWM channels the part drives the three half-bridges plus an optional regenerative brake channel. The 2 KB SRAM is sufficient for FOC state variables but may constrain higher-order observers; in those cases the PIC24EP64MC204-I/ML drop-in doubles Flash to 64 KB. Operating at 3.3 V from a small buck converter keeps efficiency above 90 percent at the controller level, important for battery range on pedal-assist systems.
Recommended
Industrial Servo / Step-Servo Drive
Small industrial servo drives for conveyors, robotics joints, and CNC auxiliaries benefit from the PIC24EP32MC204T-E/ML's deterministic interrupt response. The peripheral trigger generator chains ADC conversions into DMA without CPU intervention, freeing the core for trajectory profiling and host communication. UART and SPI interfaces connect to a host PLC or motion controller, and the LIN-capable UART can act as an RS-422 transceiver with an external line driver. The 5 V tolerant GPIO simplifies integration with legacy 5 V position sensors, eliminating level shifters. AEC-Q100 qualification is overkill for indoor industrial cabinets but gives engineers extra margin for outdoor or factory-edge installations with wide temperature swings.
Recommended
Drones and Robotics BLDC Drives
Quadcopter and small-robot BLDC ESCs demand high PWM frequency, small PCB area, and low weight - all satisfied by the PIC24EP32MC204T-E/ML. At 60 MIPS it executes sinusoidal or FOC commutation at PWM rates up to 50 kHz, supporting the high eRPM of small brushless motors. The integrated op amps eliminate external current-sense amplifiers, and the DMA engine keeps ADC-to-PWM latency predictable to within 100 ns. The 44-pin QFN package weighs under 0.1 gram and the 8x8 mm footprint fits inside the smallest 20 A ESC boards. For higher-power variants requiring more Flash, the PIC24EP256MC204-E/ML is a drop-in upgrade with 256 KB program memory.
Recommended
Battery-Powered Cordless Tools
Cordless drills, impact drivers, and garden tools need robust brushless motor control from a 14 V to 21 V battery pack. The PIC24EP32MC204T-E/ML is well suited for sensored or sensorless FOC at currents up to 30 A, paired with an external gate driver. Its 2 KB SRAM accommodates the full FOC state machine plus protective current-limiting logic. The AEC-Q100 qualification ensures the controller survives the vibration and thermal-shock profile of a hand-held tool. UART debug channel and the on-chip op amps simplify board layout by removing the external instrumentation amp typically needed for low-side current sensing on the half-bridge.
Recommended
Recommended Products Summary
Engineering reference data for PIC24EP32MC204T-E/ML — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC24EP32MC204-I/ML | PIC24EP32MC204-E/ML | PIC24EP32MC204-H/ML | PIC24EP64MC204-I/ML | PIC24EP256MC204-E/ML |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| 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 | 44-QFN (8x8 mm) - same |
| Flash Memory | 32 KB | 32 KB | 32 KB | 32 KB | 64 KB | 256 KB |
| SRAM | 2 KB | 2 KB | 2 KB | 2 KB | 4 KB | 16 KB |
| Max CPU Speed | 60 MIPS | 60 MIPS | 60 MIPS | 60 MIPS | 60 MIPS | 60 MIPS |
| Operating Temperature | -40C to +125C | -40C to +85C | -40C to +125C | -40C to +150C | -40C to +85C | -40C to +125C |
| AEC-Q100 | Yes | No | Yes | Yes | No | Yes |
| PWM Channels | 6 high-speed | 6 high-speed | 6 high-speed | 6 high-speed | 6 high-speed | 6 high-speed |
| On-chip Op Amps | 2 | 2 | 2 | 2 | 2 | 2 |
Key Differentiators
- Highest-temperature automotive qualification in same package (vs PIC24EP32MC204-H/ML)
- Integrated 2 op amps and QEI reduce BOM (vs PIC24EP32GP204T-I/ML)
- Reel packaging for high-volume SMT lines (vs PIC24EP32MC204-E/ML)
Design Notes
The 44-pin QFN exposed pad (EP) is the primary thermal path for the PIC24EP32MC204T-E/ML. Estimated: at 60 MIPS with all peripherals active the device dissipates roughly 82 mW, which on the standard JEDEC 4-layer test board (theta_JA ~30 C/W) yields a 2.5 C junction rise above ambient. For tight enclosures, however, the effective theta_JA climbs to 50-70 C/W; solder the EP to a copper pour of at least 1 square inch and add thermal vias to an inner ground plane to keep Tj below 125C in -E applications.
Place the 0.1 uF + 10 uF decoupling pair on each VDD pin within 5 mm of the package. Place the AVSS/AVDD analog supply filter (10 ohm + 10 uF + 0.1 uF) close to the analog pins to keep ADC readings stable when the PWM switches at full duty. Keep PWM traces short and symmetric to avoid skew between high-side and low-side switching events, which can otherwise cause shoot-through in the external gate driver.
The on-chip op amps have limited bandwidth (about 10 MHz GBW) and a 1 mV typical offset. For high-precision current sensing in motor control, calibrate the offset in software at startup using a known zero-current state, or use external instrumentation amplifiers. The ADC sample-and-hold requires that the input impedance be below 10 kohm for full 10-bit accuracy; add an external buffer if your source impedance is higher.
Do not leave the MCLR pin floating - tie it to VDD through a 10 kohm pull-up for normal operation or drive it low for reset. The JTAG/ICSP pins are shared with general-purpose I/O; disable JTAG in the configuration bits if you need those GPIOs in your application. Also remember that pin remapping (PPS) is required for most peripherals - omitting PPS configuration is the most common reason a 'dead' PIC24E prototype fails to bring up a peripheral on the expected pin.
Compliance Information
AEC-Q100 qualified per automotive-grade -E suffix. RoHS and REACH compliant per Microchip material declaration. Halogen-free and lead-free per package materials data.
