PIC24EP64MC204T-I/ML - 16-Bit 70 MIPS 64KB Flash MCU | Microchip
MPN: PIC24EP64MC204T-I/ML ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $6.5 | $6.50 |
| 10 | $5.85 | $58.50 |
| 100 | $5.2 | $520.00 |
| 500 | $4.65 | $2,325.00 |
| 1,000 | $4.1 | $4,100.00 |
PIC24EP64MC204T-I/ML Overview
What is a 16-bit microcontroller? A microcontroller (MCU) is a single-chip computer integrating a CPU core, program memory (Flash, Flash), data memory (RAM), peripherals and I/O. The 16-bit class sits between 8-bit devices (e.g. PIC16/PIC18) and 32-bit ARM Cortex-M parts, offering higher MIPS, larger address space and DSP-friendly instructions at lower cost than 32-bit. PIC24E sits in Microchip's dsPIC/PIC24 hierarchy as a high-performance 16-bit MCU for motor control and DSP.
Key features include 64 KB (22K x 24) Flash, 8 KB RAM, 35 general-purpose I/O, multiple UART/SPI/I2C interfaces, an enhanced motor-control PWM module, a 10-bit ADC with up to 1 Msps, and a 3.0 V to 3.6 V single-supply operating range. The 44-pin QFN-EP package provides a low-thermal-resistance exposed pad for dissipating motor-drive-stage heat. The device supports industrial temperature grade -40C to +85C.
Architecturally, the PIC24EP64MC204 uses a modified Harvard architecture with 24-bit instruction words and 16-bit data paths, hardware MAC for DSP operations, and dedicated motor-control PWM with high-resolution edge placement. Internal PLLs and oscillator flexibility allow trade-offs between CPU speed and peripheral timing. The advanced analog includes multiple ADC sample-and-hold channels suitable for back-EMF and current sensing.
Typical applications include 3-phase BLDC and PMSAC drives, field-oriented control (FOC) motor systems, industrial inverters, digital power conversion, sensorless motor control, and USB-equipped embedded control nodes. The high-resolution PWM and fast ADC make the part a strong fit for sensorless FOC on small to mid-size motors.
When designing with this device, place 100 nF decoupling on every VDD pin and connect the QFN exposed pad to a continuous ground plane with multiple thermal vias; this is mandatory for thermal dissipation in motor drive stages. The on-chip debug interface (PGDx/PGECx) requires no special programming voltage.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.
Drop-in alternatives for PIC24EP64MC204T-I/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 PIC24EP64MC204T-I/ML (same form factor and footprint) — differing in Operating Temperature, Package, ADC, CPU Speed, Core Architecture.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC24EP64MC204-E/ML
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$3.06 / Unit
View Datasheet →PIC24EP64MC204-I/ML
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$4.85 / Unit
View Datasheet →PIC24EP128MC204T-I/ML
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$3.78 / Unit
View Datasheet →PIC24EP256MC204-I/ML
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$4.4 / Unit
View Datasheet →DSPIC33EP64MC204T-I/ML
✅ Drop-In✓ In Stock
$2.61 / Unit
View Datasheet →PIC24EP512MC204T-I/ML
✅ Drop-In✓ In Stock
$5.45 / Unit
View Datasheet →PIC24EP64MC204T-I/ML Maximum Ratings & Electrical Characteristics
| Core Architecture | PIC24E (16-bit MCU with DSP) |
| CPU Speed | 70 MIPS (60 MHz with PLL) |
| Program Memory (Flash) | 64 KB (22K x 24 words) |
| Data RAM | 8 KB |
| Operating Voltage | 3.0 V to 3.6 V |
| I/O Pins | 35 |
| Package | 44-pin QFN (8x8 mm) with exposed pad |
| Package Code | HVQCCN |
| Operating Temperature | -40C to +85C (Industrial, I-temp) |
| ADC | 10-bit, multi-channel, 1 Msps |
| Motor Control PWM | High-resolution PWM with dedicated outputs |
| Communication Interfaces | UART, SPI, I2C |
| Timers | Multiple 16-bit and 32-bit timers |
| Mounting Type | Surface Mount (QFN-EP) |
| RoHS Status | Compliant |
| AEC-Q100 | Not automotive qualified (I-temp grade) |
PIC24EP64MC204T-I/ML Pin Configuration
| Pin 1 | RP15/PWM3H/AN15 — Remappable I/O / PWM output / analog input |
| Pin 2 | RP14/PWM3L/AN14 — Remappable I/O / complementary PWM / analog input |
| Pin 3 | RP13/PWM2H/AN13 — Remappable I/O / PWM output / analog input |
| Pin 4 | RP12/PWM2L/AN12 — Remappable I/O / complementary PWM / analog input |
| Pin 5 | RP11/PWM1H/AN11 — Remappable I/O / PWM output / analog input |
| Pin 6 | RP10/PWM1L/AN10 — Remappable I/O / complementary PWM / analog input |
| Pin 7 | VDD — Digital supply voltage 3.0-3.6 V |
| Pin 8 | VSS — Digital ground |
| Pin 9 | OSC1/CLKI — Crystal oscillator input or external clock input |
| Pin 10 | OSC2/CLKO — Crystal oscillator output or system clock output |
| Pin 11 | PGED2/SDA2/RP5 — ICSP data / I2C data / remappable I/O |
| Pin 12 | PGEC2/SCL2/RP5 — ICSP clock / I2C clock / remappable I/O |
| Pin 13 | MCLR — Master Clear reset input (active low) |
| Pin 14 | PGED1/AN6/RP6 — ICSP data / analog input / remappable I/O |
| Pin 15 | PGEC1/AN7/RP7 — ICSP clock / analog input / remappable I/O |
| Pin 16 | AVDD1 — Analog supply voltage 3.0-3.6 V |
| Pin 17 | AVSS1 — Analog ground |
| Pin 18 | AN0 — Analog input 0 (ADC) |
| Pin 19 | AN1 — Analog input 1 (ADC) |
| Pin 20 | AN2 — Analog input 2 (ADC) |
| Pin 21 | AN3 — Analog input 3 (ADC) |
| Pin 22 | AN4 — Analog input 4 (ADC) |
| Pin 23 | AN5 — Analog input 5 (ADC) |
| Pin 24 | VREF+/VDD — ADC positive reference (tied to AVDD) |
| Pin 25 | VREF-/VSS — ADC negative reference (tied to AVSS) |
| Pin 26 | RP0/INT0 — Remappable I/O / external interrupt 0 |
| Pin 27 | RP1/INT1 — Remappable I/O / external interrupt 1 |
| Pin 28 | RP2/INT2 — Remappable I/O / external interrupt 2 |
| Pin 29 | RP3/INT3 — Remappable I/O / external interrupt 3 |
| Pin 30 | RP4/INT4 — Remappable I/O / external interrupt 4 |
| Pin 31 | VDD — Digital supply voltage 3.0-3.6 V |
| Pin 32 | VSS — Digital ground |
| Pin 33 | RP8/U1CTS — Remappable I/O / UART1 clear-to-send |
| Pin 34 | RP9/U1RTS — Remappable I/O / UART1 request-to-send |
| Pin 35 | RP16/U1RX — Remappable I/O / UART1 receive |
| Pin 36 | RP17/U1TX — Remappable I/O / UART1 transmit |
| Pin 37 | RP18/SCK1 — Remappable I/O / SPI1 clock |
| Pin 38 | RP19/SDO1 — Remappable I/O / SPI1 data out |
| Pin 39 | RP20/SDI1 — Remappable I/O / SPI1 data in |
| Pin 40 | RP21/SS1 — Remappable I/O / SPI1 slave select |
| Pin 41 | RP22/SCK2 — Remappable I/O / SPI2 clock |
| Pin 42 | RP23/SDO2 — Remappable I/O / SPI2 data out |
| Pin 43 | RP24/SDI2 — Remappable I/O / SPI2 data in |
| Pin 44 | RP25/SS2 — Remappable I/O / SPI2 slave select |
Typical Applications
PIC24EP64MC204T-I/ML is suitable for 7 applications: 3-Phase BLDC Motor Drive, Field-Oriented Control (FOC) Inverter, Industrial Sensorless Pumps and Fans, Digital Power Conversion, Robotics and CNC Motion Control, Solar Micro-Inverters and Power Optimizers, Appliance Motor Controllers.
3-Phase BLDC Motor Drive
The PIC24EP64MC204T-I/ML is purpose-built for 3-phase BLDC motor control. Its high-resolution PWM module delivers complementary outputs with dead-time insertion and hardware fault inputs, while the 1 Msps 10-bit ADC samples phase currents at PWM rates. At 70 MIPS the PIC24E core closes current loops well within 10-20 kHz FOC cycles. Per Microchip AN1078 sensorless FOC reference design, this part supports full FOC on small and mid-size BLDC motors with cycle times under 20 us.
Recommended
Field-Oriented Control (FOC) Inverter
The PIC24EP64MC204T-I/ML supports sensorless and encoder-based FOC on PMSAC motors. The hardware MAC accelerates Park/Clarke transforms in 2-3 us, leaving CPU headroom for speed/current PI loops and SVPWM modulation. The exposed-pad 44-pin QFN dissipates PWM-stage heat effectively. Microchip's motorBench development suite generates auto-tuned FOC code for this MCU, reducing time-to-prototype for industrial drives from weeks to days.
Recommended
Industrial Sensorless Pumps and Fans
For sensorless pump and fan drives, the PIC24EP64MC204T-I/ML provides BEMF sensing via the on-chip ADC and high-resolution PWM at 20 kHz switching, well above audible noise. Low-power sleep modes reduce standby current for battery-backed pump controllers. The -40C to +85C industrial temperature grade suits outdoor and appliance environments. Compared with PIC16 alternatives, this part delivers roughly 4x computational throughput enabling smoother startup torque.
Recommended
Digital Power Conversion
The PIC24EP64MC204T-I/ML's 70 MIPS core and high-resolution PWM are well matched to digital power conversion such as PFC stages, synchronous buck converters and LLC resonant topologies. Hardware DSP instructions execute PI compensators in roughly 250 ns, supporting switching frequencies up to 500 kHz. The 64 KB Flash holds full state-space control firmware; the QFN-44 package reduces board area versus equivalent 8-bit PIC18 implementations.
Recommended
Robotics and CNC Motion Control
The PIC24EP64MC204T-I/ML drives stepper motors and small servo loops in robotics and CNC subsystems. The encoder interface timer captures quadrature signals at high rates, and the high-resolution PWM generates precise step pulses for stepper drives. Multiple UART/SPI interfaces support communication with host MCUs and HMI panels. At 44 pins, the QFN package balances I/O count with compact board area for embedded motion modules.
Recommended
Solar Micro-Inverters and Power Optimizers
Solar micro-inverter and power-optimizer designs benefit from the PIC24EP64MC204T-I/ML's 70 MIPS throughput, 64 KB Flash for MPPT/PWM firmware, and high-resolution PWM for high-frequency switching. The integrated ADC supports simultaneous input voltage and current sampling required for perturb-and-observe or incremental-conductance MPPT. The 3.0-3.6 V single-supply rail simplifies auxiliary power derived from the PV panel through a small DC-DC brick.
Recommended
Appliance Motor Controllers
White goods and appliance motor controllers (washing machines, dishwashers, refrigerators) use the PIC24EP64MC204T-I/ML to drive BLDC compressors and pumps. The high-resolution edge placement reduces acoustic noise by 3-6 dB versus standard-resolution PWM, important for quiet home appliances. The -40C to +85C industrial temperature range covers kitchen and laundry environments. Low-power sleep modes keep standby consumption under 1 mA for ENERGY STAR compliance.
Recommended
Recommended Products Summary
Engineering reference data for PIC24EP64MC204T-I/ML — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC24EP64MC204-E/ML | PIC24EP128MC204T-I/ML | PIC24EP256MC204-I/ML | dsPIC33EP64MC204T-I/ML | PIC24EP512MC204T-I/ML |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 44-pin QFN (8x8 mm) | 44-pin QFN (8x8 mm) - same | 44-pin QFN (8x8 mm) - same | 44-pin QFN (8x8 mm) - same | 44-pin QFN (8x8 mm) - same | 44-pin QFN (8x8 mm) - same |
| Flash Memory | 64 KB | 64 KB | 128 KB | 256 KB | 64 KB | 512 KB |
| RAM | 8 KB | 8 KB | 16 KB | 16 KB | 8 KB | 48 KB |
| CPU Speed | 70 MIPS | 70 MIPS | 70 MIPS | 70 MIPS | 70 MIPS | 70 MIPS |
| Temperature Grade | I-temp (-40C to +85C) | E-temp (-40C to +125C) | I-temp | I-temp | I-temp | I-temp |
| DSP Engine | Hardware MAC (limited DSP) | Hardware MAC (limited DSP) | Hardware MAC (limited DSP) | Hardware MAC (limited DSP) | Full DSP engine | Hardware MAC (limited DSP) |
| Operating Voltage | 3.0 V to 3.6 V | 3.0 V to 3.6 V | 3.0 V to 3.6 V | 3.0 V to 3.6 V | 3.0 V to 3.6 V | 3.0 V to 3.6 V |
Key Differentiators
- Optimized Flash-to-package ratio for cost-sensitive motor control (vs PIC24EP128MC204T-I/ML)
- Industrial temperature grade at lower cost than automotive -Q1 parts (vs dsPIC33EP64MC204T-I/ML)
- Compact 44-pin QFN with exposed thermal pad for high-power motor drive (vs PIC24EP64MC204-I/PT (44-pin TQFP))
Design Notes
The 44-pin QFN-EP package has an exposed thermal pad that MUST be soldered to a continuous ground plane with multiple thermal vias (recommended: 0.3 mm drill, 1.0 mm pitch, 9+ vias). Without proper thermal connection the PWM-drive FETs may trip thermal shutdown at sustained loads above 1 A per phase. Place 100 nF X7R decoupling on every VDD and AVDD pin within 2 mm of the package, plus a bulk 10 uF tantalum or ceramic at the chip supply.
Estimated: at 70 MIPS with all peripherals active the core draws roughly 30-50 mA from VDD. Add a bulk capacitor of at least 10 uF within 5 mm of the VDD pins. The PIC24E core has an internal LDO; no separate core supply is needed, but VDD noise above 50 mVpp may cause Flash programming failure. Use a ferrite bead between analog AVDD and digital VDD if noise coupling is observed.
Route PWM outputs (PWMxH/L) as differential pairs with matched length within 1 mm, keep return paths uninterrupted, and avoid crossing high-current gate-drive traces. The PWM module generates sharp edges (5-10 ns rise) that couple easily to adjacent analog inputs; maintain 3x trace-to-trace spacing between PWM and ANx traces and use a ground guard trace between them. For ADC sampling, set the ADC trigger to occur 200-500 ns after the PWM edge to allow switching transients to settle.
Do not exceed 3.6 V on VDD or AVDD - this damages the part permanently. Do not leave the MCLR pin floating; either tie to VDD through a 10 kohm pull-up or drive directly with an open-drain supervisor. The ICSP programming pins (PGDx/PGECx) are remappable peripherals - in-circuit programming requires the programmer to drive these pins with proper pull-down during reset. Configure unused I/O as outputs and tied low, not as inputs (floating inputs increase current consumption).
Estimated: at 70 MIPS and 3.3 V core voltage, internal die dissipation is 0.5-0.8 W worst case. The QFN-EP thermal pad provides theta_JA around 25 C/W with a proper 4-layer PCB ground plane. At ambient 85 C, junction temperature reaches roughly 105 C worst case - within the I-temp limit but with limited margin. For high-ambient applications (outdoor solar inverters, automotive under-hood) choose the E-temp variant or derate the operating frequency.
Compliance Information
PIC24EP64MC204T-I/ML is I-temp industrial grade (not AEC-Q100). Microchip part is RoHS/REACH compliant per the manufacturer datasheet. For automotive-grade variants consult Microchip product selector.
