DSPIC33FJ64MC202-I/SP - 16-bit DSC 40MIPS 64KB Flash | Microchip
MPN: DSPIC33FJ64MC202-I/SP ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $0.17 | $0.17 |
| 10 | $0.16 | $1.60 |
| 100 | $0.15 | $15.00 |
| 500 | $0.14 | $70.00 |
| 1,000 | $0.13 | $130.00 |
DSPIC33FJ64MC202-I/SP Overview
A Digital Signal Controller combines the computational architecture of a digital signal processor with the peripheral set and ease of use of a microcontroller. Within the power-management hierarchy of embedded systems, a DSC sits between general-purpose MCUs and dedicated DSPs, providing hardware multiply-accumulate (MAC) and DSP instruction support for high-speed, repetitive computations such as control loops and filtering. The dsPIC33F family is Microchip's 16-bit DSC line, and this device is pin compatible with the PIC24HJ family, according to Microchip's official product page.
Key features include the 40 MIPS dsPIC33F core, 64KB self-programming Flash, DMA capability for data movement without CPU intervention, and an advanced analog and Motor Control PWM peripheral set designed for digital power conversion. According to DigChip datasheet data, the part is ACTIVE in life cycle, specified from 3V to 3.6V, and offered in lead-free packages.
Architecturally, the dsPIC33F employs a modified Harvard 16-bit core with DSP engine, supporting high-speed, repetitive computation workloads. The DMA controller offloads peripherals, sustaining deterministic real-time behavior in closed-loop control systems while the CPU bandwidth remains available for application logic.
Typical applications include switch-mode power supplies, digital power supplies, motor control (BLDC, PMSM, AC induction), and power inverters, where the Motor Control PWM and fast ADC sampling align directly with control-loop requirements.
Design consideration: the 28-pin SPDIP is through-hole, ideal for prototyping and education, but verify decoupling - place 0.1uF ceramics close to all VDD/VSS pin pairs and pair PGECx/PGEDx pins correctly for ICSP programming.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
Drop-in alternatives for DSPIC33FJ64MC202-I/SP — 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 DSPIC33FJ64MC202-I/SP (same form factor and footprint) — differing in Package, Operating Temperature, Supply Voltage, Core Architecture, Motor Control PWM.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33FJ64MC202-E/SP
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$4.35 / Unit
View Datasheet →DSPIC33FJ32MC202-I/SP
✅ Drop-In✓ In Stock
$3.25 / Unit
View Datasheet →DSPIC33FJ32MC202-E/SP
✅ Drop-In✓ In Stock
$3.6 / Unit
View Datasheet →PIC24HJ64GP202-I/SP
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33FJ32MC102T-I/SO
✅ Drop-In✓ In Stock
$3.3 / Unit
View Datasheet →DSPIC33FJ64MC202-I/SP Maximum Ratings & Electrical Characteristics
| Core | dsPIC33F 16-bit |
| Performance | 40 MIPS |
| Flash Program Memory | 64 KB (64K x 8) |
| Supply Voltage | 3 V to 3.6 V |
| Package | 28-pin SPDIP (SP) |
| Mounting Type | Through Hole |
| I/O Ports | 21 |
| DMA | Yes |
| Motor Control PWM | Yes |
| ROM Type | Flash |
| Life Cycle Stage | ACTIVE |
| Operating Temperature | -40C to +85C (industrial, I suffix) |
| Lead Free | Yes |
| Pin Compatibility | PIC24HJ family (per Microchip) |
| Programming/Debug | ICSP via paired PGECx/PGEDx pins |
DSPIC33FJ64MC202-I/SP 28-pin spdip (sp) Pin Configuration Guide
Pin configuration for DSPIC33FJ64MC202-I/SP (28-pin spdip (sp) 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 DSPIC33FJ64MC202-I/SP.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33FJ64MC202-I/SP is suitable for 6 applications: Digital Power Supplies, BLDC and PMSM Motor Control, Power Inverters and UPS, Embedded Prototyping and Education, Industrial Sensor and Actuation Nodes, Battery Chargers and DC-DC Converters.
Digital Power Supplies
The DSPIC33FJ64MC202-I/SP fits switch-mode power supply designs where a fast, deterministic control loop is the core requirement. Its 40 MIPS 16-bit DSP core executes proportional-integral compensators at switching frequencies well above audible range, while the Motor Control PWM module generates complementary PWM outputs with dead-time control for half-bridge and full-bridge power stages. According to the dsPIC33FJ64MC202 family datasheet, these devices target advanced analog and motor control PWM applications. Placed as the supervisory controller between the feedback divider and gate drivers, the DSC replaces analog compensation networks with firmware, enabling soft-start profiles, adaptive dead-time, and digital protection (over-current, over-voltage) without additional components. The DMA controller streams ADC samples so loop latency stays constant across firmware complexity. The 3V to 3.6V digital supply simplifies interfacing with feedback and communication circuits.
Recommended
BLDC and PMSM Motor Control
Brushless DC and permanent-magnet synchronous motor drives are the flagship application of the dsPIC33FJ64MC202 family. According to Microchip's product description, the family provides Motor Control PWM and advanced analog specifically for high-speed, repetitive control computations. In a typical sensorless FOC drive, the 40 MIPS core runs Clarke/Park transforms and current-loop PI compensators, while Motor Control PWM drives the three-phase inverter with hardware dead-time insertion. The DMA path from ADC to RAM keeps current sampling jitter-free at the PWM center, which directly reduces torque ripple. At 64KB Flash there is room for field-orientation control, startup algorithms, and a communication stack simultaneously. The 28-pin SPDIP package is especially common in evaluation fixtures, lab drives, and low-volume industrial drives where hand-assembly and socketed controllers simplify iteration and field replacement.
Recommended
Power Inverters and UPS
DC-AC inverters, solar micro-inverter control stages, and line-interactive UPS units demand synchronized multi-channel PWM, fast analog feedback, and protection logic - all native strengths of this device. According to the family datasheet, dsPIC33FJ devices integrate Motor Control PWM with advanced analog targeted at power conversion. In an inverter controller role, the DSPIC33FJ64MC202-I/SP generates sinusoidal PWM with center-aligned carriers, samples output voltage and current through the ADC, and executes grid-synchronization and anti-islanding logic in firmware. The 40 MIPS budget leaves headroom for harmonic compensation alongside the fundamental control loop, and DMA keeps sampling deterministic during communication activity. The industrial -40C to +85C rating suits outdoor power conversion enclosures, and 3V to 3.6V operation allows direct interface with low-voltage sensing and supervisor circuits.
Recommended
Embedded Prototyping and Education
The through-hole 28-pin SPDIP package makes this DSC a natural choice for university labs, evaluation carriers, and breadboard-friendly prototyping of DSP-based control systems. Unlike QFN or SSOP siblings, the SPDIP can be socketed, hand-soldered, and replaced without reflow equipment, which shortens iteration cycles in teaching and R&D settings. Students can implement 40 MIPS fixed-point DSP filters, motor control loops, and DMA-driven data acquisition while learning a commercially deployed 16-bit architecture that is pin compatible with the PIC24HJ family, according to Microchip. ICSP programming through paired PGECx/PGEDx pins works with low-cost programmers, and the 3V to 3.6V supply is compatible with standard lab bench arrangements. The same PCB design can migrate to SMD package variants for production, protecting the software and schematic investment.
Recommended
Industrial Sensor and Actuation Nodes
Industrial nodes that sample analog sensors at speed and drive actuators benefit from this DSC's blend of ADC throughput, DSP filtering, and PWM actuation. The 40 MIPS core can run FIR/IIR filters on vibration, current, or pressure signals in real time - a task general-purpose MCUs handle only marginally - while the DMA controller moves samples into RAM without CPU stalls. According to the dsPIC33FJ64MC202 datasheet family description, the architecture is ideal for applications relying on high-speed, repetitive computation as well as control. The 21 I/O ports cover indicator, communication, and actuation signals in compact nodes, and the industrial temperature range of -40C to +85C suits factory-floor cabinets. Firmware update capability through self-programming Flash enables field upgrades of control algorithms on installed equipment.
Recommended
Battery Chargers and DC-DC Converters
Smart battery chargers and high-power DC-DC converters use this DSC to implement charging state machines, constant-current/constant-voltage loops, and synchronous rectification control digitally. According to the family positioning, dsPIC33FJ devices serve high-speed control applications with Motor Control PWM and advanced analog. The 40 MIPS core sustains multi-kHz control loops for buck and boost stages while simultaneously executing charge-termination logic, thermal derating, and fault handling. Center-aligned PWM with programmable dead-time protects half-bridge synchronous stages, and DMA-based ADC sampling captures current and voltage feedback with fixed latency, improving loop stability. The 64KB Flash accommodates multi-chemistry charging profiles and logging. Designers typically add 0.1uF decoupling at each VDD/VSS pair and route feedback traces away from PWM switching nodes to preserve ADC accuracy.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33FJ64MC202-I/SP — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33FJ64MC202-E/SP | DSPIC33FJ32MC202-I/SP | DSPIC33FJ32MC202-E/SP | PIC24HJ64GP202-I/SP |
|---|---|---|---|---|---|
| Package | 28-pin SPDIP | 28-pin SPDIP - same | 28-pin SPDIP - same | 28-pin SPDIP - same | 28-pin SPDIP - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Program Memory | 64 KB | 64 KB | 32 KB | 32 KB | 64 KB |
| Performance | 40 MIPS | 40 MIPS | 40 MIPS | 40 MIPS | 40 MIPS class |
| Core / Family | dsPIC33F (DSC, DSP engine) | dsPIC33F (DSC) | dsPIC33F (DSC) | dsPIC33F (DSC) | PIC24HJ (general-purpose MCU) |
| Motor Control PWM Peripherals | Yes | Yes | Yes | Yes | General-purpose peripherals |
Key Differentiators
- Full 64KB Flash on the DSC footprint (vs DSPIC33FJ32MC202-I/SP)
- Extended-temperature sibling available in the same footprint (vs DSPIC33FJ64MC202-E/SP)
- DSP peripherals vs general-purpose counterpart (vs PIC24HJ64GP202-I/SP)
Design Notes
Supply the DSPIC33FJ64MC202-I/SP from a regulated 3.3V rail within the specified 3V to 3.6V range. Place 0.1uF ceramic decoupling capacitors at every VDD/VSS pin pair (the 28-pin DIP has multiple power pairs at pins 7/8 and 13/14), plus one bulk 10uF capacitor near the device. During Flash self-programming, keep supply ripple minimal to avoid write errors. Estimated: a 40 MIPS core draws tens of milliamps - size the 3.3V regulator with at least 100 mA headroom including I/O loading.
For through-hole SPDIP assembly, use sockets with low-profile dual-wipe contacts rather than cheap stamped sockets in vibration-prone industrial environments, and keep the ICSP header (paired PGECx/PGEDx) wired directly to the header without series components that could impede programming. Per NSDSP documentation, PGECx/ICSPCLK and PGEDx/ICSPDAT must be used as a matched pair - mismatched pairs are a common bring-up failure. Connect all VDD and VSS pins; never assume a single pair suffices.
Two frequent integration errors: (1) migrating firmware between DSPIC33FJ32MC202 and 64MC202 variants without checking Flash bounds - the 32KB part will silently fail linkage or brick at runtime if code exceeds half the memory; (2) assuming oscillator configuration ports between PIC24HJ and dsPIC33FJ are identical despite pin compatibility - verify PLL settings in the configuration bits. Also confirm the oscillator selection matches your crystal frequency so the PLL output stays within the 40 MIPS maximum rating.
Compliance Information
Lead-free package construction per DigChip specification data ('LEAD FREE, PLASTIC'). REACH, halogen-free, and conflict-minerals declarations to be confirmed via Microchip official compliance documentation.
