DSPIC33FJ64MC202T-I/SO - 16-bit 40MIPS DSC, 64KB Flash | Microchip
MPN: DSPIC33FJ64MC202T-I/SO ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $6.08 | $6.08 |
| 10 | $5.54 | $55.40 |
| 100 | $4.86 | $486.00 |
| 500 | $4.35 | $2,175.00 |
| 1,000 | $3.95 | $3,950.00 |
DSPIC33FJ64MC202T-I/SO Overview
A digital signal controller combines the computational throughput of a digital signal processor (DSP) 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, making it the preferred choice when high-speed, repetitive computations such as control-loop math must coexist with general I/O and communication tasks.
Key features include a 16-bit modified Harvard architecture executing at 40 MIPS, a DSP engine with a high-speed 17-bit x 17-bit single-cycle multiplier, dual 40-bit accumulators, and a 40-stage barrel shifter. On-chip DMA enables data movement between peripherals and RAM without CPU intervention, critical for deterministic real-time control.
According to Microchip, the dsPIC33F family is pin compatible with the PIC24HJ family and shares a high degree of compatibility with dsPIC30F devices, allowing seamless migration between PIC24F, dsPIC30F, and dsPIC33F platforms. This protects software investment and simplifies PCB reuse across product variants.
Typical applications include precision motor control (BLDC, PMSM, FOC), digital power supplies and power factor correction, sensorless control systems, and general digital signal processing in industrial equipment.
For design, note the supply range is 3.0V to 3.6V; decouple both VDD pins and AVDD with 0.1uF ceramics placed close to the pins, and follow the Microchip dsPIC33F family reference manual for oscillator and MCLR circuit design.
This page adds value beyond the manufacturer datasheet by synthesizing distributor pricing, drop-in same-family alternatives, and practical engineering notes in one place.
Drop-in alternatives for DSPIC33FJ64MC202T-I/SO — 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 DSPIC33FJ64MC202T-I/SO (same form factor and footprint) — differing in Operating Temperature, Core Architecture, Package, Packaging, DMA Channels.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33FJ64MC202-I/SO
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33FJ64MC202A-I/SO
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33FJ32MC202T-I/SO
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33FJ16MC202T-I/SO
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33FJ64MC202T-E/SO
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33FJ64GP202T-I/SO
✅ Drop-In✓ In Stock
$3.9 / Unit
View Datasheet →DSPIC33FJ64MC202T-I/SO Maximum Ratings & Electrical Characteristics
| Core Architecture | 16-bit dsPIC33F DSC |
| Maximum Clock Speed | 40 MHz |
| Performance | 40 MIPS |
| Program Memory | 64KB (64K x 8) Flash |
| ROM Type | Flash |
| Supply Voltage | 3.0 V to 3.6 V |
| DMA | Yes |
| I/O Ports | 21 |
| Package Type | 28-SOIC |
| Mounting Type | Surface Mount |
| Operating Temperature | -40C to +85C (I grade) |
| Life Cycle Stage | ACTIVE |
| Pin Compatibility | PIC24HJ family pin compatible |
| DSP Engine | 17x17 single-cycle multiplier, dual 40-bit accumulators |
| Lead Finish | Lead free (per digchip listing) |
| Packaging | Tape & Reel (T suffix) |
DSPIC33FJ64MC202T-I/SO Pin Configuration
| Pin 1 | MCLR — Master clear reset input, programming voltage |
| Pin 2 | AN0/VREF+/RB0 — Analog input 0 / ADC positive reference / port B0 |
| Pin 3 | AN1/VREF-/RB1 — Analog input 1 / ADC negative reference / port B1 |
| Pin 4 | AN2/RB2 — Analog input 2 / port B2 |
| Pin 5 | AN3/RB3 — Analog input 3 / port B3 |
| Pin 6 | VSS — Ground reference |
| Pin 7 | OSC1/CLKI — Oscillator crystal input / external clock input |
| Pin 8 | OSC2/CLKO/RC15 — Oscillator crystal output / clock output / port C15 |
| Pin 9 | VDD — Positive supply, 3.0V to 3.6V |
| Pin 10 | AN4/RC12 — Analog input 4 / port C12 (see datasheet for full remappable functions) |
| Pin 11 | AN5/RC13 — Analog input 5 / port C13 (see datasheet for full remappable functions) |
| Pin 12 | AN6/RB4 — Analog input 6 / port B4 |
| Pin 13 | AN7/RB5 — Analog input 7 / port B5 |
| Pin 14 | VDD — Positive supply |
| Pin 15 | VSS — Ground reference |
| Pin 16 | AN8/RB6 — Analog input 8 / port B6 |
| Pin 17 | AN9/RB7 — Analog input 9 / port B7 |
| Pin 18 | AN10/RB8 — Analog input 10 / port B8 |
| Pin 19 | AN11/RB9 — Analog input 11 / port B9 |
| Pin 20 | AN12/RB10 — Analog input 12 / port B10 |
| Pin 21 | AN13/RB11 — Analog input 13 / port B11 |
| Pin 22 | AN14/RB12 — Analog input 14 / port B12 |
| Pin 23 | AN15/RB13 — Analog input 15 / port B13 |
| Pin 24 | AN16/RB14 — Analog input 16 / port B14 |
| Pin 25 | AN17/RB15 — Analog input 17 / port B15 |
| Pin 26 | VSS — Ground reference |
| Pin 27 | VDD — Positive supply |
| Pin 28 | AVDD — Analog supply for ADC (see datasheet pin diagram for exact AVSS/AVDD assignment) |
Typical Applications
DSPIC33FJ64MC202T-I/SO is suitable for 6 applications: Precision Motor Control (BLDC/PMSM FOC), Digital Power Supplies and PFC, Industrial Sensing and Data Acquisition, Audio and Signal Processing, Robotics and Embedded Control, Automotive-adjacent Test and Instrumentation.
Precision Motor Control (BLDC/PMSM FOC)
The DSPIC33FJ64MC202T-I/SO is purpose-built for precision motor control: its 40 MIPS 16-bit core, single-cycle 17x17 multiplier, and dual 40-bit accumulators execute field-oriented control (FOC) loops for BLDC and PMSM motors with cycle times in the microsecond range. DMA offloads ADC current-sampling transfers so the CPU spends its bandwidth on control math rather than data movement. Microchip positions the dsPIC33FJ MC-series explicitly as 16-bit DSCs for precision motor control. Placed in a 3.3V domain driving a gate-driver stage, it provides PWM generation and fast analog feedback in one compact 28-SOIC device; the main trade-off versus larger 64-pin variants is reduced peripheral count, which suits single-motor nodes.
Recommended
Digital Power Supplies and PFC
Switch-mode power supplies and power factor correction stages benefit from the deterministic, high-throughput control the DSPIC33FJ64MC202T-I/SO provides. At 40 MIPS with interrupt latency in the low hundreds of nanoseconds, the device closes voltage- and current-mode loops at switching frequencies well above 100 kHz, while its 12-bit ADC sampling in synchronization with the PWM cycle minimizes switching-noise-induced error. DMA moves sampled data to RAM without CPU overhead, preserving MIPS for compensator math. Its 3.0V-3.6V operation and industrial temperature rating fit power-supply controllers mounted on isolated or non-isolated secondary-side boards; for multi-output digital power systems, XAIPART's DSPIC33FJ16GS504 family offers a digital-power-focused peripheral set.
Recommended
Industrial Sensing and Data Acquisition
In sensor front-ends and data-acquisition nodes, the DSPIC33FJ64MC202T-I/SO combines 21 general-purpose I/O lines, an on-chip ADC, and DSP filter primitives (multiply-accumulate, block processing) to implement digital filtering and FFT analysis locally. The 64KB Flash accommodates calibration tables, communication stacks, and compensation algorithms, while DMA keeps sampling continuous even during communication bursts. The industrial -40C to +85C rating permits deployment in factory-floor enclosures without conformal-cooling concerns. Because the family is pin compatible with PIC24HJ devices, designers can drop in a lower-cost general-purpose MCU variant where DSP math is later deemed unnecessary - a low-risk upgrade path documented by Microchip.
Recommended
Audio and Signal Processing
The DSP engine of the DSPIC33FJ64MC202T-I/SO executes single-cycle multiply-accumulate operations that suit moderate-rate audio processing: active crossovers, dynamic range compression, and IIR/FIR filtering at audio sample rates. Dual 40-bit accumulators provide the numeric headroom needed to avoid quantization artifacts in fixed-point filter chains, a documented advantage of the dsPIC33F architecture over generic 16-bit MCUs. With 64KB of Flash, coefficient sets and multiple processing profiles fit on-chip without external memory. The device interfaces to audio codecs over SPI or I2C, and the 28-SOIC footprint keeps consumer and pro-audio board layouts compact; designers needing higher channel counts can migrate pin-compatible within the dsPIC33F family.
Recommended
Robotics and Embedded Control
Robot joint controllers, grippers, and mobile-robot drive nodes exploit the DSPIC33FJ64MC202T-I/SO's blend of DSP math and MCU-style peripherals. Each node runs local current/torque loops at 40 MIPS while communicating over UART, SPI, or I2C to a supervisory controller; the deterministic core keeps loop timing stable under full communication load. DMA-driven ADC sampling synchronizes with PWM updates for clean current measurement in each actuator channel. The 3.3V I/O level and industrial temperature range integrate cleanly with standard robotics electronics, and the 28-SOIC package suits dense multi-axis boards. Microchip's shared toolchain (MPLAB X, XC16) across PIC24 and dsPIC33 platforms simplifies mixed-fleet firmware maintenance.
Recommended
Automotive-adjacent Test and Instrumentation
Bench instruments, signal generators, and condition-monitoring probes use the DSPIC33FJ64MC202T-I/SO as a real-time processing engine where sampled waveforms are filtered, analyzed, or classified on the fly. The 40 MIPS core sustains kilohertz-to-low-megahertz sampling pipelines when paired with DMA, and the DSP hardware accelerates windowing and correlation tasks. The industrial temperature grade suits equipment that must survive warm enclosures, while the 3.0V-3.6V supply supports standard 3.3V logic interfacing. Because firmware lives in 64KB of on-chip Flash with self-programming capability, field updates of measurement profiles are possible without external memory. Note this part is not AEC-Q100 qualified; use dsPIC33 automotive families for in-vehicle deployments.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33FJ64MC202T-I/SO — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33FJ64MC202-I/SO | DSPIC33FJ64MC202A-I/SO | DSPIC33FJ32MC202T-I/SO | DSPIC33FJ64MC202T-E/SO | DSPIC33FJ64GP202T-I/SO |
|---|---|---|---|---|---|---|
| Package | 28-SOIC | 28-SOIC - same | 28-SOIC - same | 28-SOIC - same | 28-SOIC - same | 28-SOIC - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Memory (Flash) | 64KB | 64KB | 64KB | 32KB | 64KB | 64KB |
| Performance | 40 MIPS | 40 MIPS | 40 MIPS | 40 MIPS | 40 MIPS | 40 MIPS |
| Supply Voltage | 3.0V - 3.6V | 3.0V - 3.6V | 3.0V - 3.6V | 3.0V - 3.6V | 3.0V - 3.6V | 3.0V - 3.6V |
| Operating Temperature | -40C to +85C (I) | -40C to +85C (I) | -40C to +85C (I) | -40C to +85C (I) | -40C to +125C (E) | -40C to +85C (I) |
| DMA | Yes | Yes | Yes | Yes | Yes | Yes |
| Packaging | Tape & Reel (T) | Tube | Tube/Tape & Reel | Tape & Reel (T) | Tape & Reel (T) | Tape & Reel (T) |
| Variant Focus | MC (motor control) | MC (motor control) | MC enhanced A-version | MC (motor control) | MC extended temp | GP (general purpose) |
Key Differentiators
- Maximum Flash in the 28-SOIC MC202 family (vs DSPIC33FJ32MC202T-I/SO)
- Extended temperature option in the same footprint (vs DSPIC33FJ64MC202T-E/SO)
- DSP engine with DMA for motor control (vs DSPIC33FJ64GP202T-I/SO)
Design Notes
The DSPIC33FJ64MC202T-I/SO requires a 3.0V to 3.6V supply (nominal 3.3V). Decouple every VDD pin (pins 9, 14, 27) with a 0.1uF ceramic placed within 3-5 mm of each pin, plus one bulk 4.7-10uF per board. Filter AVDD through an RC (e.g., 10 ohm + 0.1uF) from the digital rail to reduce ADC noise. In 5V systems, use a low-noise LDO or buck regulator; never feed 5V directly, as absolute maximum is exceeded above 3.6V.
Route the oscillator traces (OSC1/OSC2, pins 7-8) short and symmetric with guard ground, keeping crystal load capacitors close to the pins. Keep the MCLR trace away from PWM and clock lines to avoid spurious resets during motor switching events. Since remappable peripheral pins (RPxx) allow flexible routing on RB/RC ports, plan remapping before layout to minimize crossings between ADC inputs and high dv/dt PWM traces on the same board.
Do not confuse the T (tape-and-reel) and non-T (tube) ordering codes when releasing BOMs - DigiKey lists both as separate line items with different stock. Verify configuration-bit settings (oscillator source, watchdog, PWM pin mode) at first power-up: misconfigured oscillator bits are the most common cause of a dsPIC33F that fails to start. Use Microchip's family reference manuals and the code examples on the dsPIC33FJ64MC202 product page as the authoritative setup reference.
When using the on-chip ADC for motor current sensing, synchronize sampling with the PWM center using the ADC trigger from the PWM module rather than free-running sampling - this measures current away from switching edges and suppresses noise aliasing. Keep analog inputs (AN0-AN17 on RB port) away from gate-drive traces; add small RC anti-alias filters (e.g., 1 kohm + 100 pF) on high-impedance sensor inputs.
Compliance Information
Package listing from digchip specifies LEAD FREE PLASTIC package; RoHS compliance per standard Microchip dsPIC33FJ production. REACH/halogen/conflict-minerals status not stated in provided data.
