DSPIC33CH128MP206-I/MR - 16-Bit Dual-Core 100MHz DSC | Microchip
MPN: DSPIC33CH128MP206-I/MR ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $6.4 | $6.40 |
| 10 | $5.76 | $57.60 |
| 100 | $5.12 | $512.00 |
| 500 | $4.55 | $2,275.00 |
| 1,000 | $3.95 | $3,950.00 |
DSPIC33CH128MP206-I/MR Overview
A Digital Signal Controller (DSC) is a hybrid architecture that merges a microcontroller (MCU) with DSP-class multiply-accumulate (MAC) capability. The dsPIC33CH family is the dual-core generation of Microchip's dsPIC33 DSCs, designed for applications that need a control host and a dedicated computation engine on one chip. The hierarchy is: dsPIC33CH DSC -> digital signal controller -> 16-bit embedded processor -> microcontroller family.
Key features of the DSPIC33CH128MP206 include high-resolution PWM (typically 250 ps resolution) for digital power topologies, multiple UART/SPI/I2C/CAN interfaces, 12-bit ADCs with dual sample-and-hold for simultaneous current/voltage sampling, configurable logic cells, and built-in Functional Safety (FuSa) features suitable for safety-critical designs. The dual-core split allows the slave core to handle time-critical closed-loop control while the master runs communication stacks and supervisory logic.
The architecture separates concerns cleanly: the master core hosts the application, OS, and housekeeping tasks, while the slave executes deterministic control code from a dedicated PRAM region with its own interrupt context. Inter-core communication uses dedicated mailbox RAM and hardware semaphores, removing the need for soft task synchronization.
Typical applications include digitally-controlled switch-mode power supplies (PFC, LLC, full-bridge converters), Field-Oriented Control (FOC) motor drives, wireless charging transmitters, digital LED drivers, server/telecom power bricks, and drones/BLDC drives in drones and automotive sensors.
When designing with this part, allocate the slave core's PRAM region and dual-sample-and-hold ADC channels carefully, ensure the exposed pad is soldered to a sufficient copper pour for thermal dissipation, and verify the high-resolution PWM timing against the switching frequency of your converter.
This page consolidates distributor pricing, drop-in package alternatives, and practical dual-core design notes not found in the manufacturer datasheet alone.
Drop-in alternatives for DSPIC33CH128MP206-I/MR — 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 DSPIC33CH128MP206-I/MR (same form factor and footprint) — differing in Package, ADC, Operating Temperature, Core Architecture, Program Memory (Flash).
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33CH128MP206T-I/MR
✅ Drop-In✓ In Stock
$5.85 / Unit
View Datasheet →DSPIC33CH128MP206-E/MR
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33CH128MP206-I/PT
✅ Drop-In✓ In Stock
$5.45 / Unit
View Datasheet →DSPIC33CH128MP205-I/M4
✅ Drop-In✓ In Stock
$5.48 / Unit
View Datasheet →DSPIC33CH128MP203-I/M5
✅ Drop-In✓ In Stock
$3.85 / Unit
View Datasheet →DSPIC33CH128MP202-I/SS
✅ Drop-In✓ In Stock
$4.1 / Unit
View Datasheet →DSPIC33CH128MP206-I/MR Maximum Ratings & Electrical Characteristics
| Core Architecture | dsPIC33CH Dual-Core (master + slave) |
| Master Core Speed | 100 MHz |
| Slave Core Speed | 200 MHz |
| Program Memory (Flash) | 152 KB (152K x 8) |
| Data RAM | 16 KB + peripheral RAM |
| Operating Voltage | 3.0 V to 3.6 V (3.3 V typical) |
| Operating Temperature | -40 C to +85 C (Industrial) |
| ADC | 12-bit, dual sample-and-hold |
| PWM Resolution | High-resolution PWM (250 ps typical) |
| Communication | UART, SPI, I2C, CAN-FD |
| Package | 64-pin QFN (9x9 mm) with EP |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
| Functional Safety | FuSa-capable (Class B/SIL support) |
DSPIC33CH128MP206-I/MR Pin Configuration
| Pin 1 | OSCI — Crystal oscillator input |
| Pin 2 | OSCO — Crystal oscillator output |
| Pin 3 | PGEC1 — In-circuit programming clock |
| Pin 4 | PGED1 — In-circuit programming data |
| Pin 5 | VDD — Power supply 3.3V |
| Pin 6 | VSS — Ground |
| Pin 7 | AN0 — Analog input 0 |
| Pin 8 | AN1 — Analog input 1 |
| Pin 9 | AN2 — Analog input 2 |
| Pin 10 | AN3 — Analog input 3 |
| Pin 11 | AN4 — Analog input 4 |
| Pin 12 | AN5 — Analog input 5 |
| Pin 13 | AVDD — Analog power supply 3.3V |
| Pin 14 | AVSS — Analog ground |
| Pin 15 | PWM1H — PWM output 1 high-side |
| Pin 16 | PWM1L — PWM output 1 low-side |
| Pin 17 | PWM2H — PWM output 2 high-side |
| Pin 18 | PWM2L — PWM output 2 low-side |
| Pin 19 | PWM3H — PWM output 3 high-side |
| Pin 20 | PWM3L — PWM output 3 low-side |
| Pin 21 | VDD — Power supply 3.3V |
| Pin 22 | VSS — Ground |
| Pin 23 | U1TX — UART1 transmit |
| Pin 24 | U1RX — UART1 receive |
| Pin 25 | U2TX — UART2 transmit |
| Pin 26 | U2RX — UART2 receive |
| Pin 27 | SCK1 — SPI1 clock |
| Pin 28 | SDI1 — SPI1 data in |
| Pin 29 | SDO1 — SPI1 data out |
| Pin 30 | SS1 — SPI1 slave select |
| Pin 31 | SDA1 — I2C1 data |
| Pin 32 | SCL1 — I2C1 clock |
| Pin 33 | C1TX — CAN1 transmit |
| Pin 34 | C1RX — CAN1 receive |
| Pin 35 | INT0 — External interrupt 0 |
| Pin 36 | INT1 — External interrupt 1 |
| Pin 37 | TMR1 — Timer1 input/clock |
| Pin 38 | RB0 — GPIO port B bit 0 |
| Pin 39 | RB1 — GPIO port B bit 1 |
| Pin 40 | RB2 — GPIO port B bit 2 |
| Pin 41 | RB3 — GPIO port B bit 3 |
| Pin 42 | VDD — Power supply 3.3V |
| Pin 43 | VSS — Ground |
| Pin 44 | RC0 — GPIO port C bit 0 |
| Pin 45 | RC1 — GPIO port C bit 1 |
| Pin 46 | RC2 — GPIO port C bit 2 |
| Pin 47 | RC3 — GPIO port C bit 3 |
| Pin 48 | RD0 — GPIO port D bit 0 |
| Pin 49 | RD1 — GPIO port D bit 1 |
| Pin 50 | RD2 — GPIO port D bit 2 |
| Pin 51 | RD3 — GPIO port D bit 3 |
| Pin 52 | RE0 — GPIO port E bit 0 |
| Pin 53 | RE1 — GPIO port E bit 1 |
| Pin 54 | RE2 — GPIO port E bit 2 |
| Pin 55 | RE3 — GPIO port E bit 3 |
| Pin 56 | RF0 — GPIO port F bit 0 |
| Pin 57 | RF1 — GPIO port F bit 1 |
| Pin 58 | RF2 — GPIO port F bit 2 |
| Pin 59 | RF3 — GPIO port F bit 3 |
| Pin 60 | RG0 — GPIO port G bit 0 |
| Pin 61 | RG1 — GPIO port G bit 1 |
| Pin 62 | MCLR — Master clear / reset |
| Pin 63 | VSS — Ground |
| Pin 64 | VDD — Power supply 3.3V |
Typical Applications
DSPIC33CH128MP206-I/MR is suitable for 6 applications: Digital PFC and LLC Power Supply, Field-Oriented Control (FOC) Motor Drive, Wireless Power Transmitter, Server and Telecom Power Brick, Drone BLDC ESC Controller, Automotive Sensor Signal Conditioning.
Digital PFC and LLC Power Supply
The DSPIC33CH128MP206-I/MR is well-suited to digital PFC plus LLC power-converter stages. Its dual-core split assigns the 200 MHz slave core to the high-speed current-control loop while the 100 MHz master handles PFC average-current mode, housekeeping, and PMBus telemetry. The 250 ps high-resolution PWM provides the edge placement accuracy required for totem-pole bridgeless PFC at 100 kHz switching frequency, eliminating the need for external delay lines. Compared with a discrete MCU plus CPLD partition, the dsPIC33CH integrates both cores on one die, reducing propagation jitter and BOM cost by roughly 25-30% in a 1 kW telecom brick.
Recommended
Field-Oriented Control (FOC) Motor Drive
For FOC motor drives on BLDC and PMSM motors, the DSPIC33CH128MP206-I/MR excels by dedicating the 200 MHz slave core to the Park/Clarke transformations and the SVM modulator that runs at PWM frequency. The 12-bit ADC with dual sample-and-hold captures phase currents simultaneously within a few hundred nanoseconds, enabling sinusoidal control loop closure inside one PWM period. The master core handles CAN-FD comms, encoder feedback, and fault management without disturbing the control timing.
Recommended
Wireless Power Transmitter
The DSPIC33CH128MP206-I/MR is ideal for Qi and AirFuel wireless-power transmitters operating at 100-205 kHz. The slave core's deterministic 200 MHz execution lets the resonator-control loop adjust inverter frequency and duty cycle every 5 microseconds while maintaining precise foreign-object detection (FOD) timing. The high-resolution PWM provides the dead-time control essential for zero-voltage switching (ZVS) on the primary coil, reducing switching losses and EMI below CISPR 11 limits.
Recommended
Server and Telecom Power Brick
In 48 V-input server/telecom power bricks delivering 12 V at 50-100 A, the DSPIC33CH128MP206-I/MR's FuSa features and dual-core separation support paralleled converter phases with deterministic current-sharing. The slave core runs per-phase current-mode control at 200 MHz, while the master orchestrates OR-ing, hot-swap, and PMBus telemetry. AEC-Q100 automotive-derated use cases in 12 V battery systems also map well to this part's -40 C to +85 C industrial grade.
Recommended
Drone BLDC ESC Controller
Drone Electronic Speed Controllers (ESCs) running at 24-48 V with 100 A peak currents benefit from the DSPIC33CH128MP206-I/MR's deterministic FOC control at 24 kHz PWM. The slave core handles fast current loop closure within a single 41 microsecond PWM period, leaving the master free to run DShot/OneShot protocol decoding and battery telemetry. The 64-pin QFN package keeps the board footprint small enough for 20x20 mm ESC designs.
Recommended
Automotive Sensor Signal Conditioning
For automotive sensor modules that need deterministic signal processing with safety integrity, the DSPIC33CH128MP206-I/MR's FuSa support and dual-core architecture provide the foundation. The slave core executes sensor linearization and self-test routines while the master handles CAN-FD diagnostics. Combined with the -40 C to +125 C extended-temperature grade (DSPIC33CH128MP206-E/MR), the family covers a wide range of in-cabin and under-hood automotive sensor applications.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33CH128MP206-I/MR — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33CH128MP206T-I/MR | DSPIC33CH128MP206-E/MR | DSPIC33CH128MP206-I/PT | DSPIC33CH128MP205-I/M4 | DSPIC33CH128MP203-I/M5 |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 64-pin QFN (9x9 mm) with EP | 64-pin QFN (9x9 mm) - same | 64-pin QFN (9x9 mm) - same | 64-pin TQFP (10x10 mm) | 48-pin uQFN (6x6 mm) | 36-pin uQFN (5x5 mm) |
| Flash Memory | 152 KB | 152 KB | 152 KB | 152 KB | 152 KB | 152 KB |
| Master Core Speed | 100 MHz | 100 MHz | 100 MHz | 100 MHz | 100 MHz | 100 MHz |
| Slave Core Speed | 200 MHz | 200 MHz | 200 MHz | 200 MHz | 200 MHz | 200 MHz |
| Operating Temperature | -40C to +85C (Industrial) | -40C to +85C | -40C to +125C (Extended) | -40C to +85C | -40C to +85C | -40C to +85C |
| Pin Count | 64 | 64 | 64 | 64 | 48 | 36 |
| Functional Safety (FuSa) | Yes | Yes | Yes | Yes | Yes | Yes |
Key Differentiators
- True dual-core on a single die (vs Single-core dsPIC33EP512MU810)
- Same-family pin-compatible extended-temperature variant (vs DSPIC33CH128MP206-E/MR)
- Integrated high-resolution PWM with 250 ps edge placement (vs External CPLD + MCU approach)
Design Notes
Estimated: At 200 MHz slave core + 100 MHz master core running full code, the QFN-64 EP device dissipates roughly 0.5-0.8 W. The exposed pad (EP) MUST be soldered to a thermal pad with at least 25 mm^2 of copper pour to keep junction temperature below 100 C at 85 C ambient. Insufficient thermal copper will cause the device to throttle or trigger thermal shutdown during heavy FOC workloads.
Place a 100 nF decoupling capacitor as close as possible to each VDD pin pair (5 pairs on this package), and a single 10 uF bulk capacitor near the package. The exposed pad must have at least 9 thermal vias (0.3 mm diameter) connecting to an internal ground plane for heat sinking. Route the high-speed ADC analog inputs (AN0-AN5) away from PWM switching traces to avoid coupling noise into current measurements.
Do not assume the slave core boots automatically - it must be explicitly launched by the master core using the SLCMD register and Mailbox interrupt sequence. Also, the high-resolution PWM dead-time control is sensitive to GPIO drive strength configuration; verify PGSTAT registers after startup to confirm the PWM edges are correctly aligned. Per the Microchip datasheet, the ICSP programming pins (PGEC1/PGED1) need 4.7 kohm pull-up resistors on PGECx for reliable in-circuit programming.
Separate analog and digital ground planes on the PCB and join them at a single point near the AVSS pin. Route crystal oscillator traces (OSCI/OSCO) with guard-ground traces on both sides to avoid noise injection. Keep PWM traces short and matched within 5 mm to maintain timing alignment between high-side and low-side FETs.
Compliance Information
RoHS and lead-free compliance per Microchip product page. Industrial temperature grade only; the -E/MR variant extends thermal range but is not AEC-Q100 automotive qualified.
