DSPIC33EP64MC202-I/SP - 16-Bit 70 MIPS DSC 64KB Flash | Microchip
MPN: DSPIC33EP64MC202-I/SP ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $4.68 | $4.68 |
| 10 | $4.25 | $42.50 |
| 100 | $3.8 | $380.00 |
| 500 | $3.45 | $1,725.00 |
| 1,000 | $3.1 | $3,100.00 |
DSPIC33EP64MC202-I/SP Overview
A digital signal controller is a hybrid class of processor that merges the deterministic interrupt handling and peripherals of a microcontroller with the multiply-accumulate (MAC) DSP engine of a digital signal processor. Within the power-management hierarchy, DSCs sit above general-purpose MCUs and are the preferred control element for closed-loop motor control, digital power conversion, and embedded signal processing.
Key features include the 16-bit dsPIC33E core with a single-cycle 32-bit MAC, a 17-bit x 17-bit hardware multiplier, and 40-bit accumulators for high-precision control loops. On-chip peripherals oriented at these applications include high-resolution PWM modules with dead-time control, a 10-bit/12-bit ADC with high sample rates for simultaneous multi-channel current sensing, and multiple UART, SPI, and I2C communication ports.
The DSP engine, combined with the high-speed PWM and fast ADC, allows field-oriented control (FOC) algorithms to execute at switching frequencies well into the tens of kilohertz, enabling smoother torque, higher efficiency, and lower acoustic noise in motor drive designs. The operating voltage range is centered on 3.3V, and the device carries AEC-Q100 automotive qualification per distributor parametric data, allowing use in harsh and quality-critical environments.
Typical applications include brushless DC (BLDC) and permanent-magnet synchronous motor (PMSM) control, solar inverter and PFC stages, uninterruptible power supplies, and industrial sensor signal processing. The 28-pin SPDIP package suits prototyping, education, and low-volume through-hole production.
Design consideration: the device requires a VCAP/VDDCORE stabilization capacitor per the manufacturer datasheet, and its 3.3V core supply must be sequenced correctly during power-up.
This page synthesizes distributor pricing context, drop-in family alternatives, pinout data, and practical design notes not consolidated in the manufacturer datasheet.
Drop-in alternatives for DSPIC33EP64MC202-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 DSPIC33EP64MC202-I/SP (same form factor and footprint) — differing in Operating Temperature, Package, Product Family, Mounting Type, Programming Interface.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33EP32MC202-I/SP
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$3.57 / Unit
View Datasheet →DSPIC33EP128MC202-I/SP
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$3.94 / Unit
View Datasheet →DSPIC33EP256MC202-I/SP
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$4.12 / Unit
View Datasheet →DSPIC33EP64MC202-E/SP
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33EP64MC202-I/SS
✅ Drop-In✓ In Stock
$2.7 / Unit
View Datasheet →DSPIC33EP64MC202-I/SP Maximum Ratings & Electrical Characteristics
| Core Architecture | 16-bit dsPIC33E RISC with DSP engine |
| Maximum CPU Speed | 70 MIPS |
| Maximum Clock Frequency | 60 MHz |
| Program Memory (Flash) | 64 KB (22K x 24) |
| RAM | 8 KB |
| Supply Voltage | 3.3 V |
| Package | 28-SPDIP (0.300 in, 7.62 mm) |
| Mounting Type | Through Hole |
| Operating Temperature | -40C to +85C (Industrial, I grade) |
| Qualification | AEC-Q100 |
| Product Family | dsPIC33EP (Digital Signal Controller) |
| Peripherals | High-Speed PWM, ADC, UART, SPI, I2C |
| Packaging | Tube |
| RoHS Status | Compliant |
| Number of Pins | 28 |
DSPIC33EP64MC202-I/SP Pin Configuration
| Pin 1 | MCLR — Master clear reset input (active low) / programming voltage |
| Pin 2 | AN0/CN03/RB0 — Analog input 0 / change notification / port B bit 0 |
| Pin 3 | AN1/CN02/RB1 — Analog input 1 / change notification / port B bit 1 |
| Pin 4 | AN2/SS1/CN04/RB2 — Analog input 2 / SPI slave select / port B bit 2 |
| Pin 5 | AN3/INDX/CN05/RB3 — Analog input 3 / quadrature index / port B bit 3 |
| Pin 6 | AN4/QEA/IC7/CN06/RB4 — Analog input 4 / quadrature A / input capture 7 / port B bit 4 |
| Pin 7 | VDD — Positive supply (3.3 V) |
| Pin 8 | VSS — Ground reference |
| Pin 9 | OSC1/CLKI/CN30/RA2 — Oscillator crystal input / external clock input / port A bit 2 |
| Pin 10 | OSC2/CLKO/RC15 — Oscillator crystal output / clock output / port C bit 15 |
| Pin 11 | EMUD1/SDA1/T2CK/IC8/RB5 — Emulation data / I2C data / Timer2 clock / input capture 8 / port B bit 5 |
| Pin 12 | PGD3/EMUC3/RB6 — Programming data channel 3 / emulation clock / port B bit 6 |
| Pin 13 | PGC3/EMUD3/RB7 — Programming clock channel 3 / INT0 external interrupt / port B bit 7 |
| Pin 14 | VDD — Positive supply (3.3 V) |
| Pin 15 | VSS — Ground reference |
| Pin 16 | PGD2/EMUD2/RB8 — Programming data channel 2 / port B bit 8 |
| Pin 17 | PGC2/EMUC2/RB9 — Programming clock channel 2 / port B bit 9 |
| Pin 18 | RP14/RA3 — Peripheral pin select function 14 / port A bit 3 |
| Pin 19 | RP3/RB10 — Peripheral pin select function 3 (e.g. U1TX/SDO1) / port B bit 10 |
| Pin 20 | RP2/RB11 — Peripheral pin select function 2 (e.g. U1RX/SDI1) / port B bit 11 |
| Pin 21 | RP21/RB12 — Peripheral pin select function 21 / port B bit 12 |
| Pin 22 | RP20/RB13 — Peripheral pin select function 20 / port B bit 13 |
| Pin 23 | RP19/RB14 — Peripheral pin select function 19 / port B bit 14 |
| Pin 24 | RP18/RB15 — Peripheral pin select function 18 / port B bit 15 |
| Pin 25 | AVSS — Analog ground reference |
| Pin 26 | AVDD — Analog positive supply |
| Pin 27 | VCAP/VDDCORE — CPU core voltage stabilizing capacitor connection |
| Pin 28 | DACOUT/PMDP/AN5/RB13 — DAC output / port B analog function (see datasheet pin table) |
Typical Applications
DSPIC33EP64MC202-I/SP is suitable for 6 applications: BLDC / PMSM Motor Control, Digital Power Conversion, Uninterruptible Power Supplies (UPS), Solar Inverters and MPPT, Industrial Automation and Sensing, Prototyping and Embedded Education.
BLDC / PMSM Motor Control
The DSPIC33EP64MC202-I/SP is Microchip's flagship-class controller for precision motor control: the 70 MIPS 16-bit core with a single-cycle 32-bit MAC executes field-oriented control (FOC) current loops at switching frequencies of 20 kHz and above. The high-speed PWM module generates complementary gate signals with programmable dead time for a three-phase inverter, while the fast ADC samples phase currents for closed-loop torque control. With AEC-Q100 qualification and the -40C to +85C industrial grade, the part is suited to both industrial drives and automotive-adjacent actuators. The 28-pin SPDIP package also makes it ideal for evaluation boards and classroom motor-control labs where firmware iterations are frequent.
Recommended
Digital Power Conversion
In digital power supplies, PFC stages, and DC-DC converters, this DSC closes voltage and current loops entirely in firmware. The 70 MIPS throughput allows multi-loop control (inner current loop plus outer voltage loop) within one PWM period, and the high-resolution PWM supports duty-cycle precision beyond 1 ns equivalent, minimizing output ripple. The ADC triggers synchronously from the PWM module so current samples are taken at the midpoint of the ramp, canceling switching noise. Firmware-based control also enables soft-start, fault response, and adaptive mode switching that analog controllers cannot offer. With 64 KB Flash, complete power-conversion firmware including communication and protection states fits comfortably.
Recommended
Uninterruptible Power Supplies (UPS)
Online and line-interactive UPS designs require simultaneous control of an inverter, a battery charger, and transfer logic - a workload well matched to this DSC. The 70 MIPS core with DSP MAC executes sinusoidal reference generation and multi-rate control loops for the inverter stage, while spare PWM channels drive the charger. The 12-bit-class ADC monitors bus voltage, battery current, and temperature; hardware comparators provide fast cycle-by-cycle overcurrent protection independent of CPU latency. 64 KB Flash stores waveforms, logging, and communication firmware. Industrial temperature rating and AEC-Q100 qualification support deployment in demanding power infrastructure environments.
Recommended
Solar Inverters and MPPT
Grid-tied and off-grid solar converters use this device for maximum-power-point tracking (MPPT) and inverter control. The 70 MIPS DSP engine runs perturb-and-observe or incremental-conductance MPPT algorithms concurrently with current control loops, and the synchronized ADC samples panel voltage/current and grid waveforms for phase-locked-loop grid synchronization. High-resolution PWM drives the power stage while dedicated fault inputs provide hardware-level shutdown for grid abnormality events. Firmware flexibility in 64 KB Flash allows field-updatable algorithms and communication protocols, and the industrial temperature range suits rooftop and enclosure-mounted electronics exposed to wide thermal swings.
Recommended
Industrial Automation and Sensing
In industrial equipment, the DSPIC33EP64MC202-I/SP serves as an intelligent node combining control, signal processing, and communication. Its DSP MAC accelerates digital filtering of noisy sensor signals - FIR/IIR filters execute in a fraction of the cycles a general-purpose MCU needs. UART, SPI, and I2C ports, routable flexibly via Peripheral Pin Select, interface with RS-485 transceivers, displays, and peripherals. The -40C to +85C rating covers factory-floor ambient extremes, and 3.3V operation simplifies integration with modern logic. The through-hole 28-pin SPDIP format is common in retrofits and service-replaceable control modules where field repairability matters.
Recommended
Prototyping and Embedded Education
The 28-pin SPDIP through-hole package makes this one of the most convenient dsPIC33EP devices for breadboard prototyping and university lab courses on digital signal control. It drops into a standard 0.300-inch DIP socket, accepts inexpensive PICkit-class programmers, and is fully supported by the free MPLAB X IDE and XC16 compiler. Students implement FOC loops, digital filters, and peripheral pin-select experiments on real 70 MIPS hardware without surface-mount assembly equipment. Universities and training programs benefit from Microchip's free dsPIC motor-control and digital-power curriculum libraries, which target exactly this device family and memory class.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33EP64MC202-I/SP — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33EP32MC202-I/SP | DSPIC33EP128MC202-I/SP | DSPIC33EP64MC202-I/SS |
|---|---|---|---|---|
| Package | 28-SPDIP | 28-SPDIP - same | 28-SPDIP - same | SSOP-28 (SMD variant) |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| CPU Performance | 70 MIPS | 70 MIPS | 70 MIPS | 70 MIPS |
| Flash Memory | 64 KB (22K x 24) | 32 KB | 128 KB | 64 KB |
| RAM | 8 KB | 4 KB | 16 KB | 8 KB |
| Supply Voltage | 3.3 V | 3.3 V | 3.3 V | 3.3 V |
| Temperature Range | -40C to +85C (I) | -40C to +85C (I) | -40C to +85C (I) | -40C to +85C (I) |
| Drop-in on Same PCB | - | Yes (pin-to-pin) | Yes (pin-to-pin) | No (different footprint) |
Key Differentiators
- Largest readily available memory headroom in same SPDIP footprint (vs DSPIC33EP32MC202-I/SP)
- Through-hole SPDIP for fast prototyping (vs DSPIC33EP64MC202-I/SS)
- Automotive AEC-Q100 qualification (vs DSPIC33EP32MC202-I/SP)
Design Notes
The dsPIC33E core runs from an internally regulated low-voltage rail derived from the 3.3V VDD supply via the on-chip LDO. The VCAP/VDDCORE pin MUST have the low-ESR stabilization capacitor specified in the manufacturer datasheet placed as close to the pin as possible; omitting or under-sizing it causes erratic resets and core instability, one of the most common first-design failures on this family. Decouple each VDD pin with 0.1 uF ceramic plus a bulk capacitor, and keep AVDD filtered separately (ferrite plus 0.1 uF and 1 uF) so ADC accuracy is not degraded by digital supply noise.
For motor-control layouts, route the PWM gate-drive outputs away from ADC sense lines and keep the analog ground plane (AVSS) tied to digital ground at a single star point to prevent switching-return currents from corrupting current-sense measurements. Synchronize ADC sampling to the PWM period center using the PWM trigger, which samples current away from switching edges - this single technique typically improves current-measurement noise by an order of magnitude in three-phase inverters.
Peripheral Pin Select (PPS) mapping is a frequent source of bring-up failures: UART, SPI, and other routable peripherals will not communicate until input and output PPS registers are explicitly configured at startup. Also remember MCLR needs a pull-up (typically 10 kOhm) for reliable reset, and in-circuit programming requires access to MCLR, PGC/PGD pairs - leave these header pins accessible even in production layouts. Verify oscillator configuration fuses match your crystal frequency; a mismatch silently scales the entire clock tree.
Compliance Information
RoHS compliant and AEC-Q100 qualification indicated by distributor parametric data (datasheets.com, updated 20-OCT-2024). REACH and halogen-free status not stated in provided data.
