DSPIC33EP256MC206-I/PT - 70 MIPS 16-bit DSC, 256KB Flash | Microchip
MPN: DSPIC33EP256MC206-I/PT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $6.9 | $6.90 |
| 10 | $6.25 | $62.50 |
| 100 | $5.55 | $555.00 |
| 500 | $5.05 | $2,525.00 |
| 1,000 | $4.65 | $4,650.00 |
DSPIC33EP256MC206-I/PT Overview
A digital signal controller combines the compute throughput of a DSP with the peripheral integration and control architecture of a microcontroller. Within the power-management hierarchy, a DSC sits above a basic MCU: it adds single-cycle MAC and DSP instructions, high-resolution PWM modules, and fast analog peripherals, making it the standard choice for closed-loop motor control and digital power conversion where both computation speed and precise timing are required.
Key features of the DSPIC33EP256MC206-I/PT include integrated operational amplifiers, a high-speed 12-bit ADC, high-speed PWM peripherals, and connectivity via I2C, SPI, UART/USART, IrDA, LIN bus, and quadrature encoder interface (QEI). DMA channels offload data movement, while brown-out detect/reset and low-power modes support robust industrial designs. The operating voltage range is 3.0V to 3.6V, and the I-grade temperature range spans -40C to +85C.
The dsPIC33E core executes most instructions in a single cycle with hardware DSP support, and Peripheral Pin Select (PPS) allows remapping of many digital peripherals onto flexible I/O pins, simplifying board layout and reducing routing conflicts. Flash self-programming supports field firmware updates, and ICSP/ICD debug access is available through any PGECx/PGEDx pin pair.
Typical applications include brushless DC and PMSM motor control (sensorless and sensored, using QEI plus high-speed PWM), digital power supplies (PFC, LLC, solar micro-inverters), and industrial automation nodes requiring CAN-free but multi-protocol serial connectivity.
Design consideration: all VDD and VSS pins must be connected and decoupled; when using ICSP, the selected PGECx pin must be paired with the matching PGEDx pin.
This page synthesizes distributor pricing, drop-in alternatives, pinout data, and practical design notes not consolidated in the manufacturer datasheet.
Drop-in alternatives for DSPIC33EP256MC206-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 DSPIC33EP256MC206-I/PT (same form factor and footprint) — differing in Package, Operating Temperature, Communication Interfaces, Core Architecture, Peripherals.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33EP256MC206-E/PT
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33EP128MC206-I/PT
✅ Drop-In✓ In Stock
$3.95 / Unit
View Datasheet →DSPIC33EP256GP504-I/PT
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$3.68 / Unit
View Datasheet →DSPIC33EP256GM304T-I/PT
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$4.1 / Unit
View Datasheet →DSPIC33EP16GS504-I/PT
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
Contact for price
View Datasheet →DSPIC33EP256MC206-I/PT Maximum Ratings & Electrical Characteristics
| Core | dsPIC33E 16-bit DSC |
| Core Size | 16-bit |
| Maximum Speed | 70 MIPS (60 MHz oscillator per Mouser listing) |
| Program Memory Size | 256 KB Flash |
| RAM Size | 32 KB |
| Package | 64-TQFP (10x10 mm) |
| Operating Temperature Range | -40C to +85C |
| Supply Voltage Range | 3.0 V to 3.6 V |
| Connectivity | I2C, SPI, UART/USART, IrDA, LIN, QEI |
| Peripherals | Brown-out Detect/Reset, DMA, Motor Control PWM, Op Amps |
| Integrated Op Amps | Yes |
| Mounting Type | Surface Mount |
| Packaging | Tray |
| I/O Sink/Source Current | 15 mA / 10 mA pin-specific (standard); up to 22 mA / 14 mA non-standard |
| 5V-Tolerant I/O | Yes |
| Debug/Programming | ICSP/ICD via PGECx/PGEDx pin pairs |
| Series | dsPIC33EP256MC206 |
DSPIC33EP256MC206-I/PT Pin Configuration
| Pin 1 | MCLR — Master clear reset input / programming voltage |
| Pin 2 | AN0/VREF+/CN3/RB0 — Analog input 0 / positive ADC reference / change notification / port B |
| Pin 3 | AN1/VREF-/CN2/RB1 — Analog input 1 / negative ADC reference / port B |
| Pin 4 | AN2/SS1/CN4/RB2 — Analog input 2 / SPI slave select 1 / port B |
| Pin 5 | AN3/IND/CN5/RB3 — Analog input 3 / op amp inverting input / port B |
| Pin 6 | AN4/INC5/CN6/RB4 — Analog input 4 / op amp non-inverting input / port B |
| Pin 7 | AN5/OCUA/CN7/RB5 — Analog input 5 / port B |
| Pin 8 | AN6/OCFB/CN8/RB6 — Analog input 6 / port B |
| Pin 9 | AN7/OUTA/CN9/RB7 — Analog input 7 / op amp output / port B |
| Pin 10 | AN8/OUTB/CN10/RB8 — Analog input 8 / op amp output / port B |
| Pin 11 | AN9/OUTC/CN11/RB9 — Analog input 9 / op amp output / port B |
| Pin 12 | AN10/CVREF/RTCC/CN12/RB10 — Analog input 10 / comparator reference / port B |
| Pin 13 | AN11/INDB/CN13/RB11 — Analog input 11 / op amp inverting input / port B |
| Pin 14 | VSS — Ground reference |
| Pin 15 | VDD — Positive supply (3.0V to 3.6V) |
| Pin 16 | AN12/INCC/CN14/RB12 — Analog input 12 / op amp non-inverting input / port B |
| Pin 17 | AN13/INDD/CN15/RB13 — Analog input 13 / port B |
| Pin 18 | AN14/INCD/CN16/RB14 — Analog input 14 / port B |
| Pin 19 | AN15/OUTD/CN17/RB15 — Analog input 15 / port B |
| Pin 20 | PGD3/EMUD3/CN18/RF4 — Programming data channel 3 / emulation / port F |
| Pin 21 | PGC3/EMUC3/CN19/RF5 — Programming clock channel 3 / emulation / port F |
| Pin 22 | SOSCI/CN20/RC13 — Secondary oscillator input / port C |
| Pin 23 | SOSCO/T1CK/CN0/RC14 — Secondary oscillator output / Timer1 clock / port C |
| Pin 24 | VDD — Positive supply (3.0V to 3.6V) |
| Pin 25 | VSS — Ground reference |
| Pin 26 | TCK/TDI/RF3 — JTAG test clock / test data input / port F |
| Pin 27 | TDO/RF2 — JTAG test data output / port F |
| Pin 28 | SDA1/TD1/RG3 — I2C data 1 / port G |
| Pin 29 | SCL1/TCK1/RG2 — I2C clock 1 / port G |
| Pin 30 | INT0/RE0 — External interrupt 0 / port E |
| Pin 31 | RE1 — Port E I/O |
| Pin 32 | RE2 — Port E I/O |
| Pin 33 | RE3 — Port E I/O |
| Pin 34 | RE4 — Port E I/O |
| Pin 35 | RE5 — Port E I/O |
| Pin 36 | RE6 — Port E I/O |
| Pin 37 | RE7 — Port E I/O |
| Pin 38 | RG0 — Port G I/O |
| Pin 39 | RG1 — Port G I/O |
| Pin 40 | VCAP/VDDCORE — Core regulator capacitor connection |
| Pin 41 | RD8 — Port D I/O |
| Pin 42 | RD9 — Port D I/O |
| Pin 43 | RD10 — Port D I/O |
| Pin 44 | RD11 — Port D I/O |
| Pin 45 | AVDD — Analog positive supply |
| Pin 46 | AVSS — Analog ground |
| Pin 47 | AN16/RD0 — Analog input 16 / port D |
| Pin 48 | AN17/RD1 — Analog input 17 / port D |
| Pin 49 | AN18/RD2 — Analog input 18 / port D |
| Pin 50 | AN19/RD3 — Analog input 19 / port D |
| Pin 51 | AN20/RD4 — Analog input 20 / port D |
| Pin 52 | PGD1/EMUD1/RD5 — Programming data channel 1 / port D |
| Pin 53 | PGC1/EMUC1/RD6 — Programming clock channel 1 / port D |
| Pin 54 | PGD2/EMUD2/RD7 — Programming data channel 2 / port D |
| Pin 55 | PGC2/EMUC2/RD12 — Programming clock channel 2 / port D |
| Pin 56 | SOSCN0/RC12 — Port C I/O |
| Pin 57 | OSCI/CLKI/RC12 — Primary oscillator input / external clock input |
| Pin 58 | OSCO/CLKO/RC15 — Primary oscillator output / clock output |
| Pin 59 | VSS — Ground reference |
| Pin 60 | VDD — Positive supply (3.0V to 3.6V) |
| Pin 61 | RF13 — Port F I/O |
| Pin 62 | RF12 — Port F I/O |
| Pin 63 | RF6 — Port F I/O |
| Pin 64 | RF7 — Port F I/O |
Typical Applications
DSPIC33EP256MC206-I/PT is suitable for 6 applications: Brushless DC / PMSM Motor Control, Digital Power Conversion, Industrial Automation Nodes, Embedded Sensing and Data Acquisition, Portable and Battery-Powered Instruments, Automotive-Adjacent Subsystems.
Brushless DC / PMSM Motor Control
The DSPIC33EP256MC206-I/PT is purpose-built for closed-loop motor control: its 70 MIPS DSP core executes field-oriented control (FOC) algorithms with single-cycle MAC instructions, while the motor-control PWM module generates complementary outputs with dead-time insertion. The integrated op amps amplify shunt current signals directly, feeding the high-speed 12-bit ADC for per-PWM-cycle current sampling. The quadrature encoder interface (QEI) supports sensored designs, and Peripheral Pin Select lets engineers route PWM and encoder signals to optimal board locations. This eliminates external current-sense amplifiers and reduces BOM cost in servo drives, e-bike controllers, and industrial pumps.
Recommended
Digital Power Conversion
In digital power supplies - PFC stages, LLC resonant converters, and solar micro-inverters - the DSPIC33EP256MC206-I/PT provides the deterministic control loop timing required for MHz-class switching. The high-speed PWM supports complementary, push-pull, and phase-shifted topologies with sub-nanosecond-class resolution adjustments, and the 70 MIPS core closes voltage/current loops fast enough for high-bandwidth regulation. The 12-bit ADC with DMA streams sampled feedback without CPU intervention, and the 256KB Flash accommodates complex control laws plus communication stacks. Its 3.0V to 3.6V operation integrates cleanly with standard 3.3V logic and isolated gate-driver interfaces.
Recommended
Industrial Automation Nodes
The DSPIC33EP256MC206-I/PT fits factory-floor sensing and actuation nodes that need multi-protocol connectivity without a host processor. Its UART/USART with IrDA and LIN support, SPI, and I2C interfaces - all remappable via Peripheral Pin Select - connect to sensors, HMI panels, and industrial buses, while 256KB Flash stores protocol stacks plus application logic. The -40C to +85C industrial rating covers unconditioned cabinets, and brown-out detect/reset plus low-power modes provide the robustness and energy profile demanded by 24V-panel mounted equipment. DMA keeps high-rate sensor streaming off the CPU, preserving cycle budget for control algorithms.
Recommended
Embedded Sensing and Data Acquisition
With its high-speed 12-bit ADC, integrated op amps, and 32KB of RAM for buffering, the DSPIC33EP256MC206-I/PT serves compact data-acquisition systems such as vibration monitors, load-cell front ends, and multi-channel sensor loggers. The op amps can be configured as gain stages for small differential signals, cutting external component count, while DMA moves conversion results to RAM autonomously. The DSP instruction set performs on-chip filtering (FIR/IIR) and FFT analysis before results are sent over UART or SPI, reducing host-side processing. 5V-tolerant I/O simplifies interfacing with legacy industrial sensors running at 5V levels.
Recommended
Portable and Battery-Powered Instruments
The dsPIC33E low-power modes (idle, doze, and sleep) let the DSPIC33EP256MC206-I/PT fit battery-operated handheld instruments that need burst computation: the 70 MIPS core wakes, executes heavy DSP processing or a measurement cycle, then returns to sleep with minimal average current. 256KB Flash supports complex UI firmware, and Peripheral Pin Select allows one PCB design to serve multiple product variants by remapping peripherals in software. The 3.0V floor enables direct operation from a Li-ion cell through a low-dropout regulator across most of the discharge curve, extending usable battery capacity in meters and portable testers.
Recommended
Automotive-Adjacent Subsystems
For non-safety-critical automotive-adjacent equipment - auxiliary pumps, seat controllers, HVAC blowers in heavy equipment, and e-mobility accessories - the DSPIC33EP256MC206-I/PT (or its -E/PT sibling rated to +125C) provides BLDC motor control with QEI feedback and LIN bus connectivity, a protocol widely used for low-cost in-vehicle networking. The high-speed PWM and integrated op amps handle phase-current sensing for smooth torque control, while LIN/UART handles network messaging. Designs anticipating under-hood-like temperatures can drop in the -E/PT variant on the identical 64-TQFP footprint without PCB changes.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33EP256MC206-I/PT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33EP256MC206-E/PT | DSPIC33EP128MC206-I/PT | DSPIC33EP256GP504-I/PT | DSPIC33EP256GM304T-I/PT | DSPIC33EP16GS504-I/PT |
|---|---|---|---|---|---|---|
| Package | 64-TQFP (10x10 mm) | 64-TQFP (10x10 mm) - same | 64-TQFP (10x10 mm) - same | 64-TQFP (10x10 mm) - same | 64-TQFP (10x10 mm) - same | 64-TQFP (10x10 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Memory (Flash) | 256 KB | 256 KB | 128 KB | 256 KB | 256 KB | 16 KB |
| Core Speed | 70 MIPS | 70 MIPS | 70 MIPS | 70 MIPS | 70 MIPS | 70 MIPS |
| Operating Temperature | -40C to +85C | -40C to +125C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C |
| Key Use Case | Motor control / digital power | Motor control, hot environments | Cost-optimized motor control | General-purpose embedded control | Motor control with CAN bus | Smart analog / cost-sensitive designs |
Key Differentiators
- Integrated op amps eliminate external current-sense amplifiers (vs DSPIC33EP256GP504-I/PT)
- Extended temperature option on identical footprint (vs DSPIC33EP256MC206-E/PT)
- Double the code headroom vs the 128KB sibling (vs DSPIC33EP128MC206-I/PT)
- Honest trade-off: no CAN bus (vs DSPIC33EP256GM304T-I/PT)
Design Notes
The DSPIC33EP256MC206-I/PT operates from a single 3.0V-3.6V rail with an internal core regulator. Connect a low-ESR capacitor (about 10uF, value per datasheet) to the VCAP/VDDCORE pin - this is critical for core stability and must never be omitted. All VDD pins must be tied to the same rail, each decoupled with 0.1uF ceramic placed within 2mm of the pin. Provide separate AVDD/AVSS filtering (ferrite bead plus 0.1uF and 1uF) to keep ADC noise low; sharing noisy digital ground with AVSS directly degrades the 12-bit converter's effective resolution.
ICSP programming on the dsPIC33EP256MC206 requires a matched PGECx/PGEDx pair - PGEC2 must pair with PGED2, for example; mixing channels from different pairs causes programming failures (confirmed on the northernsoftware.com support page for this device). Also note Peripheral Pin Select only remaps a subset of digital peripherals: some functions such as I2C and the input capture restrictions documented in Section 11.4 of the family data sheet (DS70000657J) have fixed or limited mappings. Verify PPS availability before finalizing your pin assignment.
For motor-control PWM outputs driving long traces or gate drivers, keep the complementary PWM pairs matched in length and route them away from the ADC input lines (AN0-AN20). The 70 MIPS core switching noise can couple into the analog domain; use the analog ground plane under AVSS as a moat and route analog sense lines differentially into the integrated op amps. If using the QEI encoder inputs, add RC filtering (approximately 1k/100pF) at the connector to suppress motor brush noise.
Estimated: at 70 MIPS with all peripherals active, typical core current is in the tens of mA range per Microchip family data sheet DS70000657J (exact figure: consult the DC Characteristics table). Even at a conservative 50 mA from 3.3V, power dissipation is only about 165 mW; with a TQFP-64 theta_JA around 50-60 C/W (typical for 10x10 TQFP on 2-layer board - verify in datasheet), junction rise is roughly 10C, so no heatsinking is required. The -I grade ceiling of +85C ambient leaves ample margin in most industrial enclosures; use -E/PT above that.
Compliance Information
RoHS/lead-free per standard Microchip catalog part status; request the manufacturer material declaration for REACH and halogen details.
