DSPIC33EP128MC206-I/PT - 16-bit DSC, 60 MIPS, 128KB | Microchip
MPN: DSPIC33EP128MC206-I/PT β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $6.75 | $6.75 |
| 10 | $6.12 | $61.20 |
| 100 | $5.2 | $520.00 |
| 500 | $4.4 | $2,200.00 |
| 1,000 | $3.95 | $3,950.00 |
DSPIC33EP128MC206-I/PT Overview
A digital signal controller combines the control peripherals of a microcontroller with the math throughput of a DSP in a single 16-bit core. Within the power-management hierarchy of an embedded system, the DSC sits at the top of the real-time control chain, replacing separate MCU-plus-DSP designs in motor drives, digital power supplies, and other closed-loop control systems where deterministic interrupt latency and fast multiply-accumulate throughput are essential.
Key features include high-resolution motor-control PWM outputs with complementary modes and dead-time insertion, multiple UART, SPI and I2C serial interfaces, QEI (quadrature encoder interface) support, DMA channels, and five 16-bit timers. The integrated analog subsystem provides a high-speed 10-bit or 12-bit ADC with multiple sample-and-hold circuits, enabling simultaneous sampling of phase currents in field-oriented control (FOC) schemes.
The dsPIC33E architecture is a modified Harvard, 16-bit core built in CMOS flash process technology, executing most instructions in a single cycle at up to 60 MIPS. DSP-class instructions (MAC, MPY, dual operand fetch) and two address generation units allow efficient execution of FOC, PID, and filter algorithms without external DSP assistance. The -I temperature grade (-40C to +85C) suits industrial environments, while the -E variant extends to 125C for automotive and high-heat applications.
Typical applications include brushless DC and PMSM motor control, digitally controlled power supplies and inverters, servo drives, and industrial automation. The MC (motor control) peripheral set, including motor-control PWM and QEI inputs, makes this part a natural fit for precision motion systems.
Design consideration: connect all VDD/VSS pairs and use the dedicated VCAP pin with the recommended low-ESR capacitor for the internal 2.5V core regulator; omitting or undersizing this capacitor is a common source of erratic operation.
This page synthesizes distributor pricing, drop-in alternatives, pinout data, and practical design notes not found in a single manufacturer or distributor listing.
Drop-in alternatives for DSPIC33EP128MC206-I/PT β 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 DSPIC33EP128MC206-I/PT (same form factor and footprint) β differing in Operating Temperature, Package, Packaging, Core, RAM.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
DSPIC33EP128MC206-E/PT
β Drop-Inπ Reference alternative (not in catalog)
DSPIC33EP256MC206-I/PT
β Drop-In β οΈ εζ°εΎ ιͺθ―π Reference alternative (not in catalog)
DSPIC33EP64MC206-I/PT
β Drop-In β οΈ εζ°εΎ ιͺθ―π Reference alternative (not in catalog)
DSPIC33EP128MC506-I/PT
β Drop-In β οΈ εζ°εΎ ιͺθ―π Reference alternative (not in catalog)
DSPIC33EP128GP206-I/PT
β Drop-In β οΈ εζ°εΎ ιͺθ―π Reference alternative (not in catalog)
DSPIC33EP128GM306-E/PT
β Drop-Inβ In Stock
$6.15 / Unit
View Datasheet βDSPIC33EP128GM304T-I/PT
β Drop-Inβ In Stock
$3.95 / Unit
View Datasheet βDSPIC33EP128MC206-I/PT Maximum Ratings & Electrical Characteristics
| Core | dsPIC33E 16-bit |
| Maximum Operating Frequency | 60 MIPS (60 MHz) |
| Program Memory (Flash) | 128 KB (43K x 24) |
| RAM | 16 KB |
| Supply Voltage | 3.0 V to 3.6 V (3.3 V typical) |
| Package | 64-pin TQFP (10x10 mm), 0.5 mm pitch |
| Operating Temperature | -40C to +85C (I grade) |
| Timers | 5 x 16-bit |
| DMA Channels | 4 |
| Communication Interfaces | UART, SPI, I2C, LINbus, QEI |
| Motor Control PWM | Yes |
| ADC | 10/12-bit high-speed ADC |
| Mounting Type | Surface Mount |
| Technology | CMOS Flash |
| RoHS Status | Compliant |
| Packaging | Tray |
DSPIC33EP128MC206-I/PT Pin Configuration
| Pin 1 | MCLR β Master clear reset / ICSP programming voltage input |
| Pin 2 | AN0/VREF+/RB0 β Analog input 0 / ADC positive reference / Port B0 |
| Pin 3 | AN1/VREF-/RB1 β Analog input 1 / ADC negative reference / Port B1 |
| Pin 4 | AN2/SS1/RB2 β Analog input 2 / SPI slave select 1 / Port B2 |
| Pin 5 | AN3/INDX/RB3 β Analog input 3 / QEI index / Port B3 |
| Pin 6 | AN4/QEA/RB4 β Analog input 4 / QEI phase A / Port B4 |
| Pin 7 | AN5/QEB/RB5 β Analog input 5 / QEI phase B / Port B5 |
| Pin 8 | AN6/OCFA/RC0 β Analog input 6 / PWM fault A / Port C0 |
| Pin 9 | AN7/RC1 β Analog input 7 / Port C1 |
| Pin 10 | AN8/RC2 β Analog input 8 / Port C2 |
| Pin 11 | AN9/RC3 β Analog input 9 / Port C3 |
| Pin 12 | VDD β Digital power supply (3.0-3.6 V) |
| Pin 13 | VSS β Digital ground |
| Pin 14 | OSC1/CLKI/RA2 β Crystal oscillator input / external clock input |
| Pin 15 | OSC2/CLKO/RC15 β Crystal oscillator output / clock output |
| Pin 16 | SOSCI/CN1/RC13 β Secondary oscillator input / change notification 1 |
| Pin 17 | SOSCO/T1CK/CN0/RA4 β Secondary oscillator output / Timer1 clock input |
| Pin 18 | VDD β Digital power supply |
| Pin 19 | VSS β Digital ground |
| Pin 20 | AN10/RTCC/RB6 β Analog input 10 / RTCC alarm / Port B6 |
| Pin 21 | AN11/RB7 β Analog input 11 / Port B7 |
| Pin 22 | VSS β Digital ground |
| Pin 23 | VDD β Digital power supply |
| Pin 24 | AN12/RB8 β Analog input 12 / Port B8 |
| Pin 25 | AN13/RB9 β Analog input 13 / Port B9 |
| Pin 26 | TMS/RB10 β JTAG test mode select / Port B10 |
| Pin 27 | TCK/RB11 β JTAG test clock / Port B11 |
| Pin 28 | TDI/RB12 β JTAG test data input / Port B12 |
| Pin 29 | TDO/RB13 β JTAG test data output / Port B13 |
| Pin 30 | VSS β Digital ground |
| Pin 31 | VDD β Digital power supply |
| Pin 32 | PWM1L1/RE0 β Motor control PWM1 low output 1 / Port E0 |
| Pin 33 | PWM1H1/RE1 β Motor control PWM1 high output 1 / Port E1 |
| Pin 34 | PWM1L2/RE2 β Motor control PWM1 low output 2 / Port E2 |
| Pin 35 | PWM1H2/RE3 β Motor control PWM1 high output 2 / Port E3 |
| Pin 36 | PWM1L3/RE4 β Motor control PWM1 low output 3 / Port E4 |
| Pin 37 | PWM1H3/RE5 β Motor control PWM1 high output 3 / Port E5 |
| Pin 38 | PWM2L1/RE6 β Motor control PWM2 low output 1 / Port E6 |
| Pin 39 | PWM2H1/RE7 β Motor control PWM2 high output 1 / Port E7 |
| Pin 40 | PWM2L2/RF0 β Motor control PWM2 low output 2 / Port F0 |
| Pin 41 | PWM2H2/RF1 β Motor control PWM2 high output 2 / Port F1 |
| Pin 42 | VDD β Digital power supply |
| Pin 43 | VSS β Digital ground |
| Pin 44 | RF2/SDI1/U1RX β SPI1 data in / UART1 receive |
| Pin 45 | RF3/SDO1/U1TX β SPI1 data out / UART1 transmit |
| Pin 46 | RF6/SCK1 β SPI1 serial clock |
| Pin 47 | RF7/SS1 β SPI1 slave select |
| Pin 48 | RF8/SDA1 β I2C1 data |
| Pin 49 | RF13/SCL1 β I2C1 clock |
| Pin 50 | VCAP β Internal 2.5V core regulator capacitor - connect low-ESR 10uF+0.1uF to VSS |
| Pin 51 | RD0 β Port D0 |
| Pin 52 | RD1 β Port D1 |
| Pin 53 | RD2 β Port D2 |
| Pin 54 | RD3 β Port D3 |
| Pin 55 | RD4 β Port D4 |
| Pin 56 | RD5 β Port D5 |
| Pin 57 | RD6 β Port D6 |
| Pin 58 | RD7 β Port D7 |
| Pin 59 | RD8 β Port D8 |
| Pin 60 | RD9 β Port D9 |
| Pin 61 | RD10 β Port D10 |
| Pin 62 | RD11 β Port D11 |
| Pin 63 | AVDD β Analog power supply - connect to VDD via RC filter |
| Pin 64 | AVSS β Analog ground |
Typical Applications
DSPIC33EP128MC206-I/PT is suitable for 6 applications: Brushless DC / PMSM Motor Control, Digitally Controlled Power Supplies, Industrial Automation and Robotics, Solar Inverters and Energy Systems, Electric Vehicle Auxiliary Systems, Test, Measurement and Instrumentation.
Brushless DC / PMSM Motor Control
The DSPIC33EP128MC206-I/PT is purpose-built for BLDC and PMSM drives: its motor-control PWM modules generate complementary output pairs with programmable dead time, while the QEI interface reads incremental encoder position for closed-loop commutation. The high-speed ADC samples two phase currents with a single trigger, feeding field-oriented control (FOC) algorithms that execute efficiently using the core's DSP MAC instructions at 60 MIPS. In a typical 48V servo topology, the PWM feeds a three-phase gate driver such as the MIC4104-class half-bridge driver, with current-sense amplifiers (e.g., MCP6C02) conditioning shunt signals into the ADC. The deterministic 16-bit interrupt latency keeps current-loop bandwidth high without external DSP support, and the -40C to +85C industrial temperature grade suits factory floor drives.
Recommended
Digitally Controlled Power Supplies
Switching power supplies benefit from the MC206's combination of high-resolution PWM, fast ADC, and DMA-driven data movement. A digital PFC or LLC controller can sample output voltage and current every switching cycle, execute compensation in firmware, and update PWM duty within the cycle. The 4 DMA channels offload ADC result transfers so the CPU runs control and housekeeping code in parallel. At 60 MIPS, a 10 kHz voltage loop with a 100 kHz inner current loop is comfortably achievable with margin. Use the device's internal oscillator for cost-sensitive designs or an external crystal for tight timing accuracy in interleaved topologies. Peripheral Pin Select on the dsPIC33E lets designers route PWM fault inputs and serial telemetry flexibly, reducing board respins during supply development and prototyping.
Recommended
Industrial Automation and Robotics
In factory automation nodes, the MC206 acts as a real-time motion and I/O controller. Five 16-bit timers support multi-axis step generation, the QEI ports track encoder feedback, and UART, SPI, and I2C interfaces link to motor drivers, sensors, and HMI displays. The 16KB RAM accommodates motion trajectory buffers and communication stacks simultaneously. LINbus support enables vehicle-style sensor busses on industrial AGVs. Operating reliably from -40C to +85C, the part tolerates panel-mounted enclosures without forced cooling. Typical deployments include conveyor positioning, pick-and-place axes, and closed-loop valve control, where the deterministic 16-bit core provides consistent cycle times that general-purpose 32-bit MCUs with cache-based architectures may not guarantee under worst-case code paths.
Recommended
Solar Inverters and Energy Systems
Micro-inverter and solar-optimizer designs use the MC206's 12-bit ADC for simultaneous PV voltage/current sensing and grid synchronization, with the high-resolution PWM generating the switching waveforms. The 60 MIPS core executes MPPT algorithms and grid-current control loops concurrently; the DSP instruction set accelerates the multiply-heavy MPPT calculations. Extended-functionality PLL code locks the inverter output to grid frequency, and fault trip inputs shut down PWM outputs within one PWM cycle on overcurrent events. The industrial temperature range and 3.3V single-supply operation simplify power architecture in sealed outdoor enclosures. Firmware-boot security features protect proprietary MPPT IP, and the pin-compatible 256KB sibling (DSPIC33EP256MC206) provides an upgrade path for richer grid-compliance firmware stacks.
Recommended
Electric Vehicle Auxiliary Systems
Beyond traction inverters, EVs need motor control for pumps, fans, compressors, and actuators - a fit for the MC206's MC peripheral set. The -E grade variant (DSPIC33EP128MC206-E/PT) extends rating to +125C for under-hood locations. The QEI handles position feedback in throttle and HVAC actuators, while LINbus interfaces to body-controller networks. PWM fault inputs provide hardware-level protection for solenoid drivers, and the 12-bit ADC reads NTC thermistor and Hall-effect sensor signals for thermal management. Firmware can implement sensorless FOC for coolant pumps using the DSP math acceleration, eliminating encoder cost. Layout guidance: keep ADC reference traces short and use synchronous rectification timing margins generously, since automotive supply transients stress control-loop timing.
Recommended
Test, Measurement and Instrumentation
The MC206 serves as a flexible real-time controller in bench instruments: arbitrary waveform sequencing, motorized stage control, and sensor data acquisition. Its multiple UART/SPI/I2C ports talk to front-panel displays, USB-bridge ICs, and precision ADCs concurrently, while the DMA channels stream sampled data to RAM without CPU intervention. The 60 MIPS DSP core applies windowing and filtering to captured signals in real time - a 1024-point FIR filter executes in well under a millisecond. The 64-TQFP exposes enough GPIO for relay matrix and range-switching control in DMM-style front ends. Development benefits from full ICSP/ICD debug support via PGEC/PGED pairs, supported by Microchip MPLAB X tooling and third-party programmers such as NSDSP, enabling rapid firmware iteration during instrument bring-up.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33EP128MC206-I/PT β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33EP128MC206-E/PT | DSPIC33EP256MC206-I/PT | DSPIC33EP64MC206-I/PT | DSPIC33EP128MC506-I/PT | DSPIC33EP128GP206-I/PT | DSPIC33EP128GM306-E/PT | DSPIC33EP128GM304T-I/PT |
|---|---|---|---|---|---|---|---|---|
| Package | 64-TQFP (10x10) | 64-TQFP (10x10) - same | 64-TQFP (10x10) - same | 64-TQFP (10x10) - same | 64-TQFP (10x10) - same | 64-TQFP (10x10) - same | 64-TQFP (10x10) - same | 64-TQFP (10x10) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core / MIPS | dsPIC33E, 60 MIPS | dsPIC33E, 60 MIPS | dsPIC33E, 60 MIPS | dsPIC33E, 60 MIPS | dsPIC33E, 60 MIPS | dsPIC33E, 60 MIPS | dsPIC33E, 60 MIPS | dsPIC33E, 60 MIPS |
| Flash | 128 KB | 128 KB | 256 KB | 64 KB | 128 KB | 128 KB | 128 KB | 128 KB |
| RAM | 16 KB | 16 KB | 16 KB | 16 KB | 16 KB | 16 KB | 16 KB | 16 KB |
| Operating Temperature | -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) | -40C to +85C (I grade) | -40C to +125C (E grade) | -40C to +85C (I grade) |
| Motor-Control PWM / QEI | Yes (MC family) | Yes | Yes | Yes | Yes | No (GP family) | No (GM family) | No (GM family) |
| On-Chip Op Amps | No | No | No | No | Yes (current-sense op amps) | No | No | No |
Key Differentiators
- Dedicated motor-control PWM with complementary outputs and dead-time insertion (vs DSPIC33EP128GP206-I/PT)
- Extended temperature option without footprint change (vs DSPIC33EP128MC206-E/PT)
- Integrated current-sense op amps available in same footprint (vs DSPIC33EP128MC506-I/PT)
Design Notes
The VCAP pin (pin 50) connects to the internal 2.5V core regulator and MUST have the datasheet-recommended low-ESR capacitor (typically 10uF electrolytic/tantalum in parallel with 0.1uF ceramic) to VSS. Omitting it or using a high-ESR part causes brown-out resets and erratic execution - the most common dsPIC33E field failure. Estimated: with all VDD pins properly decoupled at 0.1uF each, supply ripple under 60 MIPS load stays within the 3.0-3.6V operating window.
Split the analog and digital domains: route AVDD (pin 63) from VDD through an RC filter (e.g., 10 ohm + 1uF) and return analog ground exclusively to AVSS (pin 64). Keep ADC input traces away from PWM output pairs, which switch with fast edges and couple into the high-speed ADC. Place the crystal within 10-15 mm of OSC1/OSC2 with guard ground, and route one PGECx/PGEDx pair to a programming header - matched pairs only, per Northern Software ICSP notes.
All VDD/VSS pairs must be connected even if the pin multiplexes a port function - floating a power pin causes intermittent behavior. Peripheral Pin Select (PPS) must be configured before UART/SPI/I2C pins function; forgetting PPS lock (unlock sequence) is a frequent first-bring-up failure. Also, PWM outputs default to safe (inactive) state on reset - verify dead-time polarity against your gate driver logic before first power-up of a motor inverter to avoid shoot-through.
Complementary PWM pairs (PWM1H1/L1 etc.) should be routed as closely matched differential-length traces to the gate drivers to preserve dead-time accuracy in FOC drives. Estimated: at 0.5 mm TQFP pitch and typical 2-layer breakout, keeping each PWM pair within 5 mm length mismatch keeps dead-time skew well under 1 ns - negligible versus the ~10-100 ns typical dead-time settings.
Compliance Information
RoHS compliant and lead-free per DigiKey and OnlineComponents listings. -I grade is not AEC-Q100 qualified; use -E grade and verify automotive qualification on Microchip's automotive selector.
