DSPIC33EP64MC202T-I/SS - 70 MIPS 16-bit DSC 64KB Flash | Microchip
MPN: DSPIC33EP64MC202T-I/SS ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $2.89 | $2.89 |
| 10 | $2.6 | $26.00 |
| 100 | $2.31 | $231.00 |
| 500 | $2.05 | $1,025.00 |
| 1,000 | $1.83 | $1,830.00 |
DSPIC33EP64MC202T-I/SS Overview
A digital signal controller combines the computational architecture of a microcontroller with the multiply-accumulate (MAC) DSP engine of a digital signal processor. Within the power-management hierarchy, DSCs such as the dsPIC33EP family sit above basic MCUs, providing deterministic, cycle-accurate control loops essential for motor control and switched-mode power conversion, where software executes proportional-integral-derivative and field-oriented control algorithms in real time.
Key features include the 70 MIPS dsPIC DSC core with integrated DSP instructions, a high-speed Motor Control PWM (MCPWM) module, a Quadrature Encoder Interface (QEI) for position feedback, three integrated operational amplifiers, and four analog comparators. These motor-control-oriented peripherals eliminate external analog front-end components, reducing bill-of-material cost in inverter and servo designs. The PTG (Pulse Train Generator) peripheral offloads simple pulse sequencing from the CPU.
Architecturally, the dsPIC33EP core pairs a 16-bit MCU pipeline with a dedicated DSP engine supporting single-cycle MAC operations, bit-reversed addressing for FFTs, and zero-overhead loops. The 60 MHz internal clock source (per Mouser data) supports the rated 70 MIPS performance, and the 22K x 24 instruction-word Flash supports self-programming for field upgrades.
Typical applications include brushless DC and PMSM motor control, sensorless field-oriented-control drives, digital power supplies and power factor correction, and industrial sensor signal conditioning exploiting the on-chip op amps and comparators.
Design consideration: the 3.0 V to 3.6 V supply range requires a dedicated 3.3 V regulator with adequate decoupling; MCLR programming pins must follow ICSP layout guidance for in-circuit debug with PICkit or ICD tools.
This page synthesizes distributor pricing, same-package drop-in alternatives, and practical design notes not found in the manufacturer datasheet. Pricing references are as of 2026-09-25.
Drop-in alternatives for DSPIC33EP64MC202T-I/SS — 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 DSPIC33EP64MC202T-I/SS (same form factor and footprint) — differing in Core Architecture, Data Bus Width.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33EP64MC202-I/SS
✅ Drop-In✓ In Stock
$2.7 / Unit
View Datasheet →DSPIC33EP64MC202T-E/SS
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33EP64GP502T-I/SS
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$3.35 / Unit
View Datasheet →DSPIC33EP32MC202T-I/SS
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33EP128MC202T-I/SS
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33EP64MC202T-I/SS Maximum Ratings & Electrical Characteristics
| Core Architecture | 16-bit dsPIC DSC with DSP engine |
| Maximum CPU Speed | 70 MIPS |
| Clock Frequency | 60 MHz |
| Flash Memory | 64 KB (22K x 24 instruction words) |
| RAM | 8 KB |
| Supply Voltage | 3 V to 3.6 V |
| Package | 28-SSOP |
| Mounting Type | Surface Mount |
| Peripherals | MCPWM, QEI, 3 OpAmp, 4 Comparators, PTG |
| Timers | General purpose timers (per datasheet) |
| Operating Temperature | -40C to +85C (I grade) |
| Lifecycle Stage | ACTIVE |
| Data Bus Width | 16-bit (per DigiKey listing) |
| Programming Interface | ICSP (In-Circuit Serial Programming) |
| Family | dsPIC33EP (dsPIC 33EP) |
DSPIC33EP64MC202T-I/SS 28-ssop Pin Configuration Guide
Pin configuration for DSPIC33EP64MC202T-I/SS (28-ssop 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 DSPIC33EP64MC202T-I/SS.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33EP64MC202T-I/SS is suitable for 6 applications: BLDC/PMSM Motor Control, Sensorless Field-Oriented Control (FOC), Digital Power Supplies and PFC, Industrial Automation and Control Panels, Power Inverters and Solar Micro-Inverters, Audio Signal Processing and DSP Embedded Systems.
BLDC/PMSM Motor Control
The DSPIC33EP64MC202T-I/SS fits brushless DC and PMSM drive designs because its MCPWM module generates complementary PWM with hardware dead-time insertion while the 70 MIPS DSP core closes current loops in software at PWM frequency. The Quadrature Encoder Interface reads position sensors directly, and the four on-chip comparators provide cycle-accurate overcurrent trip without external circuitry. In a typical 24 V BLDC fan or pump drive, the controller reads phase currents through the three integrated op amps, executes field-oriented-control MAC operations within one PWM period, and updates the duty cycle - achieving deterministic control timing that a general-purpose MCU at the same clock rate cannot match.
Recommended
Sensorless Field-Oriented Control (FOC)
Sensorless FOC requires fast, deterministic math: the dsPIC33EP64MC202 DSP engine performs single-cycle 16-bit multiply-accumulate and zero-overhead loops, letting the 70 MIPS core run Clarke/Park transforms and PI current regulators inside a 10-20 kHz PWM cycle. The three on-chip op amps condition low-side shunt-resistor feedback, and the four comparators implement hardware overcurrent trips faster than any software interrupt path. Back-EMF observers and sliding-mode estimators execute in the remaining CPU budget. Because the MC202 integrates these analog front-end blocks, a two-shunt sensorless inverter can be built around this single 28-SSOP device plus gate drivers, cutting component count and board area versus discrete op-amp solutions.
Recommended
Digital Power Supplies and PFC
Switched-mode power supplies and power-factor-correction stages benefit from the MC202's deterministic control loop: the high-speed PWM module supports voltage-mode, current-mode, and phase-shifted topologies with programmable dead time, while the 70 MIPS core runs average-current-mode control at hundreds of kilohertz update rates. The on-chip comparators implement fast cycle-by-cycle current limiting, and the ADC-triggering architecture synchronizes sampling to the PWM center for noise-free feedback. The 22K x 24 instruction Flash holds both the control firmware and soft-start/protection state machines. Placing the DSP engine in the control path yields tighter transient response than fixed-frequency analog controllers while preserving programmability for different output voltages.
Recommended
Industrial Automation and Control Panels
In factory automation nodes, the DSPIC33EP64MC202T-I/SS serves as a compact control processor combining sensor acquisition and actuator drive. Its industrial -40C to +85C operating range tolerates panel environments, the 3.0 V to 3.6 V supply simplifies rail design alongside standard logic, and the PTG (Pulse Train Generator) offloads repetitive pulse sequencing - such as stepper clocks or alarm strobes - without CPU intervention. The 21 available I/O pins (28-SSOP) interface limit switches, rotary encoders via QEI, and relays through driver transistors. The DSP engine additionally runs FFT-based vibration monitoring for predictive maintenance, making one 28-pin device sufficient for sensing, analysis, and actuation in distributed I/O modules.
Recommended
Power Inverters and Solar Micro-Inverters
Grid-tied and off-grid inverter designs use the MC202's complementary PWM with dead-time control to drive H-bridge and 3-phase power stages, while the DSP engine executes MPPT (maximum power point tracking) algorithms and grid-synchronization PLLs in real time. The four on-chip comparators provide hardware overcurrent and overvoltage protection paths that react faster than firmware, essential for reliability certifications. The 64 KB Flash accommodates MPPT, inverter modulation, communication, and housekeeping code with margin for field upgrades via self-programming. The compact 28-SSOP footprint suits the densely packed power boards of micro-inverters, where controller area directly constrains the thermal and layout budget.
Recommended
Audio Signal Processing and DSP Embedded Systems
The dsPIC33EP DSP engine, with its single-cycle MAC, dual operand fetch, and bit-reversed addressing for FFTs, supports embedded audio tasks such as active noise cancellation, audio effects, and tone generation at moderate sample rates. The 3.0 V to 3.6 V operating range pairs directly with common audio codecs and DACs, and the 60 MHz clock allows FIR/IIR filtering of multiple channels in the 70 MIPS budget. The QEI module can decode mechanical volume or jog controls, while PTG generates low-jitter timing pulses for system synchronization. Although not a dedicated audio DSP, the MC202 offers a cost-effective single-chip option when a product needs both general control logic and light DSP processing.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33EP64MC202T-I/SS — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33EP64MC202-I/SS | DSPIC33EP64MC202T-E/SS | DSPIC33EP64GP502T-I/SS | DSPIC33EP32MC202T-I/SS | DSPIC33EP128MC202T-I/SS |
|---|---|---|---|---|---|---|
| Package | 28-SSOP | 28-SSOP - same | 28-SSOP - same | 28-SSOP - same | 28-SSOP - same | 28-SSOP - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| CPU Speed | 70 MIPS (60 MHz) | 70 MIPS (60 MHz) | 70 MIPS (60 MHz) | 70 MIPS (60 MHz) | 70 MIPS (60 MHz) | 70 MIPS (60 MHz) |
| Flash Memory | 64 KB (22K x 24) | 64 KB (22K x 24) | 64 KB (22K x 24) | 64 KB (22K x 24) | 32 KB | 128 KB |
| Motor-Control Peripherals (OpAmp/Comparators) | 3 OpAmp, 4 Comparators, MCPWM, QEI | 3 OpAmp, 4 Comparators, MCPWM, QEI - same | 3 OpAmp, 4 Comparators, MCPWM, QEI - same | No op amps, standard PWM | 3 OpAmp, 4 Comparators, MCPWM, QEI - same | 3 OpAmp, 4 Comparators, MCPWM, QEI - same |
| Operating Temperature | -40C to +85C (I grade) | -40C to +85C (I grade) | -40C to +125C (E grade) | -40C to +85C (I grade) | -40C to +85C (I grade) | -40C to +85C (I grade) |
| 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 | 3 V to 3.6 V |
| Packaging Format | Tape & Reel (T) | Tube | Tape & Reel | Tape & Reel | Tape & Reel | Tape & Reel |
Key Differentiators
- Integrated analog front end (3 op amps + 4 comparators) (vs DSPIC33EP64GP502T-I/SS)
- Extended temperature option in identical footprint (vs DSPIC33EP64MC202T-E/SS)
- Scalable Flash within the same pinout (vs DSPIC33EP32MC202T-I/SS and DSPIC33EP128MC202T-I/SS)
Design Notes
The 3.0 V to 3.6 V supply range requires a clean, regulated 3.3 V rail. Place 0.1 uF ceramic decoupling capacitors at every VDD/VSS pin pair as close to the package as possible, plus one bulk 4.7 uF to 10 uF capacitor per supply domain. In motor-drive environments, the PWM switching injects noise into the shared ground - use a star ground or solid ground plane and physically separate power-stage ground returns from the DSC ground. Never exceed 3.6 V; 5 V logic must be level-shifted or current-limited at the pins.
Reserve footprint pads for MCLR, PGD, and PGC ICSP access on every production board, ideally with a 5-pin header, since the dsPIC33EP cannot be reprogrammed in-circuit without them. Keep the MCLR pull-up (typically 10 kohm to 3.3 V) close to the pin. The on-chip op amps' input pins should route short, symmetric traces to shunt resistors to minimize Kelvin-sensing error in current-feedback loops. Follow Microchip family reference manual layout guidance for ADC reference decoupling.
Verify Flash-size headroom before choosing the DSPIC33EP32MC202T-I/SS cost-down variant - FOC firmware plus communication stacks routinely exceed 32 KB. When substituting the GP502 variant, remember it lacks the three op amps and MC-tuned PWM, so existing motor-control firmware will not link without peripheral rework. The -T tape-and-reel and non-T tube parts are interchangeable electrically, but moisture-sensitivity-level bake requirements apply after floor-life exposure before reflow.
When using the MCPWM module to drive gate circuits, keep PWM output traces short and away from analog feedback traces; gate-driver switching edges (tens of nanoseconds) will capacitively couple into high-impedance op-amp inputs. Route the QEI encoder signals as a twisted pair or with ground guard traces if the encoder is more than 10 cm away, and use the input Schmitt/hysteresis configuration available on dsPIC33EP digital input pins for noisy industrial encoder signals.
Compliance Information
Lifecycle Stage reported as ACTIVE (digchip index). Specific RoHS/REACH/lead-free certificates were not present in the retrieved web data; confirm via Microchip product page compliance documentation.
