DSPIC33FJ64MC204-I/ML - 16-bit DSC 40MIPS 64KB QFN-44 | Microchip
MPN: DSPIC33FJ64MC204-I/ML ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $6.42 | $6.42 |
| 10 | $5.79 | $57.90 |
| 100 | $5.15 | $515.00 |
| 500 | $4.68 | $2,340.00 |
| 1,000 | $4.25 | $4,250.00 |
DSPIC33FJ64MC204-I/ML Overview
A digital signal controller combines the compute power of a DSP with the peripheral set and ease of use of a microcontroller. In the power-management hierarchy, the DSC sits between a general-purpose MCU and a dedicated DSP: it executes high-speed, repetitive mathematical operations (PID loops, transforms, filtering) while also handling general I/O, communication, and control tasks in a single chip. Microchip's dsPIC33F family is pin compatible with the PIC24HJ family and shares a very high degree of compatibility with the dsPIC30F family, enabling seamless migration.
Key features of the DSPIC33FJ64MC204-I/ML include the 16-bit dsPIC33F core running at up to 40 MIPS, 64 KB of self-programming Flash, on-chip DMA for data movement without CPU intervention, motor-control PWM and advanced analog peripherals, and 21 I/O ports. The supply voltage range is 3 V to 3.6 V, and the -I temperature grade covers -40C to +85C operation.
Technically, the dsPIC33FJ64MC204 employs a modified Harvard 16-bit architecture with DSP engine support (barrel shifter, multiply-accumulate), boundary scan support, and multiple low-power modes. The DMA controller offloads peripheral data transfers, which is essential in motor-control and digital-power loops where deterministic interrupt latency matters. Flash self-programming supports field firmware updates.
Typical applications include precision motor control (BLDC, PMSM, ACIM drives), digital power supplies (LLC, totem-pole PFC), sensor signal processing in industrial automation, and embedded control in consumer and automotive-adjacent systems. The motor-control PWM with complementary outputs and dead-time insertion makes this family a frequent choice for inverter designs.
A key design consideration: the 3.0-3.6 V supply is not 5 V tolerant for most I/O, so level shifting is required when interfacing 5 V logic; also plan decoupling capacitors on all VDD/VSS pairs of the QFN-44 package. As of 2026-09-27, this page consolidates distributor pricing, drop-in alternatives, and design notes not found in the manufacturer datasheet.
Drop-in alternatives for DSPIC33FJ64MC204-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 DSPIC33FJ64MC204-I/ML (same form factor and footprint) — differing in Operating Temperature, Core Architecture, DMA Channels, Package Type, I/O Ports.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33FJ32MC204-I/ML
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$4.37 / Unit
View Datasheet →DSPIC33FJ128MC204-I/ML
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$4.25 / Unit
View Datasheet →DSPIC33FJ64MC204-E/ML
✅ Drop-In✓ In Stock
$4.6 / Unit
View Datasheet →PIC24HJ64GP204-I/ML
✅ Drop-In📋 Reference alternative (not in catalog)
PIC24HJ32GP204-I/ML
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33FJ64MC204-I/ML Maximum Ratings & Electrical Characteristics
| Core Architecture | 16-bit dsPIC33F |
| Max Clock / Performance | 40 MIPS |
| Program Memory (Flash) | 64 KB (64K x 8) |
| DMA Channels | Yes (DMA controller) |
| Supply Voltage | 3 V to 3.6 V |
| I/O Ports | 21 |
| Package | 44-QFN (8x8 mm), plastic, lead-free |
| Mounting Type | Surface Mount |
| Operating Temperature | -40C to +85C (I grade) |
| Memory Type | Flash (self-programmable) |
| Special Peripherals | Motor Control PWM, Advanced Analog |
| DSP Features | Barrel shifter, DSP engine, boundary scan |
| Family Compatibility | Pin compatible with PIC24HJ; highly compatible with dsPIC30F |
| Low Power Modes | Yes (multiple sleep/idle modes) |
| Life Cycle Stage | Active |
| Packaging Variant Code | /ML = QFN-44 tray, /T = Tape & Reel |
DSPIC33FJ64MC204-I/ML 44-qfn (8x8 mm), plastic, lead-free Pin Configuration Guide
Pin configuration for DSPIC33FJ64MC204-I/ML (44-qfn (8x8 mm), plastic, lead-free 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 DSPIC33FJ64MC204-I/ML.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33FJ64MC204-I/ML is suitable for 6 applications: BLDC/PMSM Motor Control Drives, Digital Power Supplies (LLC, PFC), Industrial Automation Sensor Processing, Embedded Control in Consumer Appliances, Battery-Powered Portable Instruments, Automotive-Adjacent Auxiliary Control.
BLDC/PMSM Motor Control Drives
The DSPIC33FJ64MC204-I/ML is purpose-built for precision motor control: its motor-control PWM module generates complementary outputs with hardware dead-time insertion, while the 16-bit DSP engine at 40 MIPS executes field-oriented control (FOC) current loops at switching frequencies of 20 kHz and above. The on-chip DMA moves ADC current-sense samples into memory without CPU intervention, keeping loop latency deterministic. With 64 KB Flash, full FOC firmware plus communication stacks fit comfortably with headroom. Place it between the gate-driver inputs and current-sense front end; unlike general-purpose MCUs, the MC subfamily's PWM and analog integration removes the need for external PWM controllers, reducing BOM cost in industrial drives and e-mobility actuators.
Recommended
Digital Power Supplies (LLC, PFC)
In digital power conversion, the 40 MIPS dsPIC33FJ64MC204-I/ML closes voltage and current loops for LLC resonant converters and totem-pole/boundary-mode PFC stages. The motor-control PWM supports phase-shifted and complementary drive topologies, and the advanced analog peripherals plus DMA enable fast fault trip and cycle-by-cycle current limiting. Its 3.0-3.6 V operation suits isolated designs where the controller sits on a low-voltage bias rail. Using this DSC instead of hard-wired analog control allows adaptive burst mode, nonlinear gain scheduling, and telemetry reporting via UART/SPI. The 64 KB Flash accommodates soft-start, protection state machines, and PMBus-style host communication in one device.
Recommended
Industrial Automation Sensor Processing
The DSP engine (single-cycle MAC, barrel shifter) of the DSPIC33FJ64MC204-I/ML accelerates digital filtering, FFT-based vibration analysis, and sensor fusion in factory automation nodes. At 40 MIPS it outperforms 8-bit PIC18 controllers by an order of magnitude on signal-processing workloads, while 21 I/O ports and SPI/I2C/UART links integrate encoders, proximity sensors, and HMIs. The QFN-44 industrial temperature grade (-40C to +85C) survives cabinet and floor-level environments. Its DMA controller streams ADC data continuously, enabling always-on condition monitoring without stealing CPU cycles from the control task - a key advantage in predictive-maintenance retrofits where both control and analysis run on one chip.
Recommended
Embedded Control in Consumer Appliances
Appliance control boards - fans, pumps, compressors, induction cooktops - benefit from the dsPIC33FJ64MC204-I/ML's blend of motor-control PWM, low-power sleep modes, and low external component count. The single 3.3 V rail simplifies power-tree design, and the 44-pin QFN (8x8 mm) fits compact PCBs. Flash self-programming supports field firmware updates for feature revisions after shipment. Compared with discrete motor-control ICs plus a supervisory MCU, this single-chip approach reduces BOM and firmware complexity; 64 KB Flash leaves room for UI logic, error logging, and communication. Boundary scan support also aids production-line board testing in high-volume consumer manufacturing.
Recommended
Battery-Powered Portable Instruments
Handheld diagnostic and measurement instruments use the DSPIC33FJ64MC204-I/ML for its balance of DSP throughput and low-power modes. In sleep, clock and peripheral domains shut down, extending battery life, while wake-on-interrupt resumes a 40 MIPS measurement burst in microseconds - ideal for duty-cycled acquisition. The 16-bit core computes RMS, FFT, and calibration math on-device, reducing host dependence. The 3.0-3.6 V rail matches a single Li-ion cell via a small LDO. The 64 KB Flash stores multi-protocol firmware and calibration tables. Remappable I/O lets one PCB serve several instrument variants, amortizing hardware development across product families.
Recommended
Automotive-Adjacent Auxiliary Control
For non-safety-critical auxiliary systems - seat pumps, HVAC blowers, lighting ballasts - the extended-temperature DSPIC33FJ64MC204-E/ML variant (same QFN-44 footprint) tolerates high underhood-adjacent ambients, while the standard -I/ML covers cabin electronics at -40C to +85C. The MC PWM drives brushless fans and pumps with sensorless back-EMF control using the advanced analog comparators, and the DSP core executes efficiency-optimizing algorithms in real time. CAN/LIN-capable serial links (via transceivers) integrate the node into body networks. The lead-free QFN-44 package supports standard reflow assembly for automotive-audited production lines, and pin compatibility across the dsPIC33F family provides second-source-in-family risk mitigation.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33FJ64MC204-I/ML — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33FJ32MC204-I/ML | DSPIC33FJ128MC204-I/ML | DSPIC33FJ64MC204-E/ML | PIC24HJ64GP204-I/ML |
|---|---|---|---|---|---|
| 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 |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core / Performance | 16-bit dsPIC33F, 40 MIPS | 16-bit dsPIC33F, 40 MIPS | 16-bit dsPIC33F, 40 MIPS | 16-bit dsPIC33F, 40 MIPS | 16-bit PIC24HJ, 40 MIPS |
| Program Flash | 64 KB | 32 KB | 128 KB | 64 KB | 64 KB |
| Supply Voltage | 3 V to 3.6 V | 3 V to 3.6 V | 3 V to 3.6 V | 3 V to 3.6 V | 3 V to 3.6 V |
| Operating Temperature | -40C to +85C (I) | -40C to +85C (I) | -40C to +85C (I) | Extended (E grade) - verify datasheet | -40C to +85C (I) |
| Peripheral Focus | Motor Control PWM + Advanced Analog | Motor Control PWM + Advanced Analog | Motor Control PWM + Advanced Analog | Motor Control PWM + Advanced Analog | General-Purpose (GP) peripherals |
| DMA | Yes | Yes | Yes | Yes | Yes |
Key Differentiators
- Motor-control peripheral specialization (vs PIC24HJ64GP204-I/ML)
- 2x program memory headroom in same footprint (vs DSPIC33FJ32MC204-I/ML)
- Extended temperature option (vs DSPIC33FJ64MC204-I/ML (vs -E/ML))
Design Notes
Design a clean 3.3 V rail within the 3.0-3.6 V datasheet window. Fit 100 nF ceramic decoupling at every VDD/VSS pair of the QFN-44, placed within 2 mm of the pins, plus bulk 4.7-10 uF near the supply entry. Most I/O is not 5 V tolerant - any interface with 5 V sensors or logic requires level shifting or series resistance per the datasheet absolute maximum ratings. If using an LDO from 5 V or Li-ion, budget for controller active current plus gate-drive logic at full 40 MIPS clock rate.
The QFN-44 8x8 mm footprint requires an exposed center land pattern soldered to a ground pour with a via array (3x3 or denser) for reliable soldering and low-inductance ground return. Follow the Microchip QFN land-pattern application note for stencil aperture design (typically 50-70% coverage on center pad to avoid tombstoning). Keep the crystal or oscillator traces under 15 mm with guard ground. Remappable peripheral pins (RPn) give layout freedom - route noisy PWM away from analog sense lines to keep ADC readings clean in motor-control designs.
Do not confuse package suffixes: /ML is QFN-44 while /PT is 44-TQFP - they are the same die but different footprints and not interchangeable on the same PCB. Confirm the exact grade letter needed (-I industrial, -E extended) at ordering time; distributors list both as FFF alternates. When migrating from PIC18 code, remember the 16-bit core, different register map, and 3.3 V-only I/O. Finally, verify SRAM allocation in the linker script - DMA buffers must be placed in DMA-capable RAM regions per the family reference manual.
Compliance Information
Package is described in verified data as 'LEAD FREE, PLASTIC, QFN-44' (digchip specification listing), indicating lead-free/RoHS construction. AEC-Q100 and REACH status not stated in provided data - confirm on Microchip product page.
