DSPIC33FJ64MC204-I/PT - 16-bit 40MIPS DSC 64KB Flash | Microchip
MPN: DSPIC33FJ64MC204-I/PT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $6.52 | $6.52 |
| 10 | $6.05 | $60.50 |
| 100 | $5.48 | $548.00 |
| 500 | $5.1 | $2,550.00 |
| 1,000 | $4.75 | $4,750.00 |
DSPIC33FJ64MC204-I/PT Overview
A digital signal controller combines the computational throughput of a DSP engine with the peripherals and ease of use of a microcontroller, sitting in the component hierarchy between a general-purpose MCU (such as the PIC24 family) and a dedicated DSP. DSCs are optimized for control loops that also require high-speed repetitive math, such as field-oriented motor control and digital power conversion.
Key features of this device include a modified Harvard 16-bit architecture executing at up to 40 MIPS, 8 channels of DMA for data movement without CPU overhead, 7 timers, 2 serial I/O ports (UART), and support for up to 3 external interrupts. Per Microchip, the dsPIC33F family is pin compatible with the PIC24HJ family and shares a very high degree of compatibility with dsPIC30F devices, enabling seamless migration.
The dsPIC33FJ64MC204 belongs to the Motor Control (MC) subfamily, which integrates motor control PWM peripherals and advanced analog features tailored for precision motion, power factor correction, and switched-mode power supplies. The CMOS process keeps active power low at full 40 MIPS operation, supporting thermally constrained industrial enclosures.
Typical applications include brushless DC and PMSM motor drives, digital power supplies and solar inverters, industrial automation nodes, and sensor signal processing where repetitive multiply-accumulate workloads dominate. According to Microchip product documentation, the device operates from a single 3.3 V supply.
Design consideration: budget the 8 KB of RAM carefully - DSP filtering buffers and DMA descriptors consume it quickly, so use the DMA engine and X-Y addressing modes rather than software copies.
This page synthesizes distributor pricing, verified drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
Drop-in alternatives for DSPIC33FJ64MC204-I/PT — 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/PT (same form factor and footprint) — differing in Core Architecture, Operating Temperature, Package, Program Memory (Flash), Supply Voltage.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33FJ128MC204-I/PT
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$2.2 / Unit
View Datasheet →DSPIC33FJ32MC304-E/PT
✅ Drop-In✓ In Stock
$4.45 / Unit
View Datasheet →DSPIC33FJ64MC204-E/PT
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33EP64MC204-I/PT
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33EP64MC204T-E/PT
✅ Drop-In✓ In Stock
$3.8 / Unit
View Datasheet →DSPIC33FJ64MC204-I/PT Maximum Ratings & Electrical Characteristics
| Core Architecture | 16-bit dsPIC33F DSC |
| Maximum Clock Speed | 40 MHz (40 MIPS) |
| Program Memory (Flash) | 64 KB |
| Data RAM | 8 KB |
| Supply Voltage | 3.3 V |
| DMA Channels | 8 |
| Timers | 7 |
| Serial I/O Ports | 2 (UART) |
| External Interrupts | 3 |
| Package | 44-TQFP (10x10 mm) |
| Pin Count | 44 |
| Mounting Type | Surface Mount |
| Operating Temperature | -40C to +85C (I grade) |
| Process Technology | CMOS |
| Family Compatibility | Pin compatible with PIC24HJ; high compatibility with dsPIC30F and dsPIC33F |
| Special Peripherals | Motor Control PWM, advanced analog |
DSPIC33FJ64MC204-I/PT 44-tqfp (10x10 mm) Pin Configuration Guide
Pin configuration for DSPIC33FJ64MC204-I/PT (44-tqfp (10x10 mm) 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/PT.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33FJ64MC204-I/PT is suitable for 6 applications: Brushless DC / PMSM Motor Control, Digital Power Supplies and Inverters, Industrial Automation and Sensor Nodes, Audio and Sensor Signal Processing, Robotics and Motion Subsystems, Battery-Powered Portable Instruments.
Brushless DC / PMSM Motor Control
The DSPIC33FJ64MC204-I/PT belongs to Microchip's Motor Control (MC) subfamily, whose dsPIC33F devices integrate dedicated motor control PWM and advanced analog specifically for driving three-phase BLDC and PMSM motors. The 40 MIPS 16-bit core executes field-oriented control loops with single-cycle MAC instructions, sustaining PWM frequencies in the tens of kilohertz with current-loop bandwidth well above mechanical needs. In a typical drive, the on-chip PWM stage generates complementary gate signals with dead time while 8 DMA channels move ADC current-sense samples into RAM without CPU intervention, preserving cycles for the control algorithm. The 44-pin TQFP provides sufficient I/O for encoder or Hall inputs, gate-drive enable, and fault protection lines. Firmware-level compatibility across the dsPIC33FJ64MC2xx/4xx family lets one code base scale across memory sizes.
Recommended
Digital Power Supplies and Inverters
For digitally controlled AC-DC, DC-DC, and solar inverter stages, the DSPIC33FJ64MC204-I/PT offers the combination of 40 MIPS DSP throughput and motor-control PWM peripherals that Microchip also targets at digital power conversion. High-frequency control loops for voltage-mode or average-current-mode regulation benefit from the single-cycle multiply-accumulate engine and deterministic interrupt latency of the 16-bit dsPIC33F core. The 8 DMA channels stream ADC results for sample-intensive power-quality computations such as RMS monitoring and power factor correction. Operating from a 3.3 V rail with -40C to +85C industrial rating, it fits inside enclosed power electronics with convection cooling. With 64 KB Flash, full compensation networks plus communication and supervisory code fit without external memory, and the same PT footprint accommodates 32 KB or 128 KB family variants for BOM tiering.
Recommended
Industrial Automation and Sensor Nodes
In factory automation, the DSPIC33FJ64MC204-I/PT serves as a compact signal-processing controller for actuators, sensor conditioning, and machine sub-functions. Its 2 serial I/O ports (UART) link to HMIs, field transceivers, or gateway modules, while 3 external interrupt sources capture limit-switch and fault events with deterministic response. The 16-bit core's DSP instructions handle filter and FFT workloads (vibration analysis, weigh-scale filtering) that would swamp an 8-bit MCU, and the 8 KB RAM supports moderate buffering when managed with DMA. The -40C to +85C industrial rating and CMOS process suit cabinet-mounted and machine-mounted electronics. Because the device is pin compatible with the PIC24HJ family per Microchip, a single PCB can be populated with either MCU or DSC depending on whether math acceleration is needed.
Recommended
Audio and Sensor Signal Processing
The DSP engine of the DSPIC33FJ64MC204-I/PT makes it a practical embedded audio and sensor DSP: 40 MIPS supports real-time IIR/FIR filtering, AGC, and tone generation at audio sample rates while leaving headroom for system control tasks. The 2 UART ports interface with codecs, wireless modules, or a host processor, and the advanced analog block digitizes microphone or sensor inputs directly. With 64 KB Flash, codec-independent processing routines plus a small bootloader fit comfortably; the 8 KB RAM supports double-buffered sample blocks when driven through DMA. Industrial temperature rating allows automotive-adjacent and outdoor audio equipment (intercoms, sirens, PA nodes). Designers should budget RAM carefully, using DMA circular buffers and fixed-point Q15 arithmetic to keep filter state and scratch memory within the 8 KB limit.
Recommended
Robotics and Motion Subsystems
Robot joints, grippers, and mobile-robot drive modules need compact controllers that close current loops fast while running trajectory math; the DSPIC33FJ64MC204-I/PT fits this niche with its 40 MIPS core, motor-control PWM, and DMA-accelerated analog sampling. A single device can run FOC for one motor plus limit switches, encoder decoding, and a UART command interface to a higher-level controller. The 3 external interrupt inputs provide hardware response to overcurrent or end-of-travel events without software jitter. The 44-pin 10x10 mm TQFP keeps the controller small enough to mount on joint PCBs, and the -40C to +85C range covers unheated robot chassis. Family pin compatibility means a joint design can move to the 128 KB variant if kinematics code grows.
Recommended
Battery-Powered Portable Instruments
Handheld measurement and diagnostic instruments benefit from the DSPIC33FJ64MC204-I/PT's balance of DSP throughput and CMOS low-power operation on a single 3.3 V rail. Typical uses include ultrasonic flow meters, power-quality analyzers, and handheld test tools where 16-bit math at 40 MIPS processes ADC streams while the CPU spends most time in idle between samples. The 7 timers support precise measurement gating, and 2 UART ports handle both instrument logging and PC connectivity. The 10x10 mm TQFP suits compact two-layer or four-layer handheld PCBs, and the industrial temperature rating tolerates vehicle and field environments. Battery life optimization should exploit idle/sleep modes with periodic wake via timer or external interrupt, keeping active MIPS bursts short and DMA-driven to minimize on-time per measurement.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33FJ64MC204-I/PT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33FJ128MC204-I/PT | DSPIC33FJ32MC304-E/PT | DSPIC33EP64MC204-I/PT | DSPIC33EP64MC204T-E/PT |
|---|---|---|---|---|---|
| Package | 44-TQFP (10x10 mm) | 44-TQFP (10x10 mm) - same | 44-TQFP - same | 44-TQFP - same | 44-TQFP - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core Performance | 16-bit, 40 MIPS | 16-bit, 40 MIPS | 16-bit, 40 MIPS | 16-bit, 70 MIPS | 16-bit, 70 MIPS |
| Flash Program Memory | 64 KB | 128 KB | 32 KB | 64 KB | 64 KB |
| Operating Temperature | -40C to +85C (I) | -40C to +85C (I) | -40C to +125C (E) | -40C to +85C (I) | -40C to +125C (E) |
| Firmware Migration Effort | Baseline | None (same family core) | None (same family core) | Required (dsPIC33E core) | Required (dsPIC33E core) |
Key Differentiators
- Mature dsPIC33F core with no migration cost (vs DSPIC33EP64MC204-I/PT)
- Firmware-transparent Flash upgrade path (vs DSPIC33FJ128MC204-I/PT)
- Extended temperature option within footprint (vs DSPIC33FJ64MC204-E/PT)
Design Notes
Decouple the 3.3 V rail with at least one 0.1 uF ceramic capacitor per VDD/VSS pair placed within 2 mm of the pins, plus a 4.7 uF to 10 uF bulk capacitor near the device. The dsPIC33F core draws current spikes at 40 MIPS during tight DSP loops; inadequate local decoupling shows up as brown-out resets or ADC noise. Enable the on-chip Brown-Out Reset and set the configuration for a slow-raising power supply. Estimated: at 40 MIPS the FJ core draws on the order of tens of milliamps, so a 100 mA-regulated 3.3 V rail per DSC is a conservative minimum.
Route oscillator traces short and away from PWM outputs and motor-phase traces; the motor-control PWM edges carry fast high-current transients that couple into the crystal circuit and cause missed clocks. Provide a solid ground plane under the 44-TQFP and stitch the exposed analog ground region to it at a single point if the ADC is used for current sensing. Keep sense lines to the analog inputs short and paired with their guard/return. This follows standard practice in Microchip's motor-control reference designs for the dsPIC33F MC family.
The most common integration error is RAM exhaustion: 8 KB must hold DSP filter state, DMA descriptors, stack, and heap simultaneously. Profile buffer sizes before enabling all 8 DMA channels. A second pitfall is migration assumptions - code written for dsPIC30F or PIC24HJ will link but must be re-verified because peripheral register maps and configuration bits differ despite pin compatibility. Finally, only emulated variants (default SFR reset states) apply at POR; explicit initialization of every peripheral is required rather than relying on prior-device defaults.
Compliance Information
Compliance declarations were not present in the verified web data for this exact orderable code. Confirm RoHS/REACH status on the Microchip product page or distributor compliance documentation before certification.
