DSPIC33CH64MP202-I/2N - Dual-Core 16-Bit DSC, 88KB Flash | Microchip
MPN: DSPIC33CH64MP202-I/2N β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $6.04 | $6.04 |
| 10 | $5.43 | $54.30 |
| 100 | $4.35 | $435.00 |
| 500 | $3.72 | $1,860.00 |
| 1,000 | $3.31 | $3,310.00 |
DSPIC33CH64MP202-I/2N Overview
A Digital Signal Controller (DSC) is a hybrid MCU-DSP architecture that combines a microcontroller's deterministic interrupt handling with a DSP's single-cycle MAC instruction set. The dsPIC33CH family extends this concept with a heterogeneous dual-core topology where the master core runs the application framework while the slave core executes time-critical DSP or control loops in parallel. This positions the part above traditional 16-bit MCUs in the taxonomy (16-bit microcontroller -> DSC -> dsPIC33CH -> dual-core DSC) and below 32-bit Cortex-M parts in raw compute throughput, but with deterministic latency that mid-range ARM parts rarely match.
Key features include a 200 MIPS slave core, dedicated high-resolution PWM with 250 ps resolution, CAN Flexible Data (CAN FD), and integrated Functional Safety (FuSa) primitives that allow the device to be deployed in ASIL-B/SIL-2 systems without an external watchdog MCU. The 28-pin UQFN (6 mm x 6 mm) package, designated "2N" in Microchip's suffix scheme, targets space-constrained designs such as digital power converters, motor drives, and sensor-fusion nodes. On-chip peripherals include multiple UARTS, SPI, I2C, an ADC, and configurable logic cells that let designers harden glue logic without external CPLDs.
Typical applications span digital switch-mode power supplies, field-oriented control (FOC) motor drives, automotive mechatronics, and industrial LED lighting with adaptive thermal management. The dual-core partitioning is especially valuable when control loops must run uninterrupted while the master core handles housekeeping such as communication stacks, safety diagnostics, and HMI updates. With on-chip CAN FD, the device can serve directly in automotive and industrial backbones without an external transceiver controller.
Designers should be aware that the dual-core architecture requires careful integration via Microchip's MPLAB Harmony framework; shared RAM regions must be protected with hardware semaphores to avoid race conditions. Programming and debug are supported through 4-wire ICSP on any of the multiple PGECx/PGEDx pin pairs.
This page synthesizes distributor stock, parametric alternatives, and design context that goes beyond the device datasheet, drawn from Microchip product collateral, Mouser inventory data, and the DigiKey parametric catalog to support rapid comparison and source decisions.
Drop-in alternatives for DSPIC33CH64MP202-I/2N 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 DSPIC33CH64MP202-I/2N (same form factor and footprint) β differing in Package, ADC, Core Architecture, Data RAM, High-Resolution PWM.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
DSPIC33CH64MP202-E/2N
β Drop-Inπ Reference alternative (not in catalog)
DSPIC33CH128MP202-I/SS
β Drop-Inβ In Stock
$4.1 / Unit
View Datasheet βDSPIC33CH128MP202T-I/SS
β Drop-In β οΈ εζ°εΎ ιͺθ―β In Stock
$3.94 / Unit
View Datasheet βDSPIC33CH64MP202-I/SS
β Drop-Inπ Reference alternative (not in catalog)
DSPIC33CH64MP202-I/2N Maximum Ratings & Electrical Characteristics
| Product Family | dsPIC33CH Dual Core Digital Signal Controllers |
| Core Architecture | Dual 16-bit dsPIC33 DSC cores (master + slave) |
| Master Core Speed | 180 MHz |
| Slave Core Speed | 200 MHz |
| Aggregate Throughput | Up to 200 MIPS |
| Program Flash | 88 KB (88K x 8) |
| RAM (Master / Slave) | 16 KB + 4 KB |
| Supply Voltage (VDD) | 3.0 V to 3.6 V |
| Operating Temperature Range | -40C to +85C (Industrial, "I") |
| Package | 28-pin UQFN (6 mm x 6 mm) |
| High-Resolution PWM | Yes (250 ps resolution) |
| CAN FD | Yes |
| Functional Safety (FuSa) | Yes (ASIL-B / SIL-2 capable) |
| Debug Interface | ICSP via PGECx/PGEDx pin pairs |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
DSPIC33CH64MP202-I/2N Pin Configuration
| Pin 1 | VDD β Core/digital supply voltage |
| Pin 2 | RP20/PGEC2 β Remappable I/O / Programming clock pair 2 |
| Pin 3 | RP21/PGED2 β Remappable I/O / Programming data pair 2 |
| Pin 4 | RP22/SCL1 β Remappable I/O / I2C1 clock |
| Pin 5 | VSS β Ground reference |
| Pin 6 | RP23/SDA1 β Remappable I/O / I2C1 data |
| Pin 7 | RP24/AN0 β Remappable I/O / Analog input 0 |
| Pin 8 | RP25/AN1 β Remappable I/O / Analog input 1 |
| Pin 9 | AN2/RA0 β Analog input 2 / Port A bit 0 |
| Pin 10 | AN3/RA1 β Analog input 3 / Port A bit 1 |
| Pin 11 | PWM1H/RA2 β PWM high output / Port A bit 2 |
| Pin 12 | PWM1L/RA3 β PWM low output / Port A bit 3 |
| Pin 13 | RP26/INT0 β Remappable I/O / External interrupt 0 |
| Pin 14 | VSS β Ground reference |
| Pin 15 | RP27/INT1 β Remappable I/O / External interrupt 1 |
| Pin 16 | OSCI/CLKI β Crystal oscillator input / external clock |
| Pin 17 | OSCO/CLKO β Crystal oscillator output |
| Pin 18 | RP28/SCL2 β Remappable I/O / I2C2 clock |
| Pin 19 | RP29/SDA2 β Remappable I/O / I2C2 data |
| Pin 20 | C1TX/CANFD1TX β CAN FD 1 transmit |
| Pin 21 | C1RX/CANFD1RX β CAN FD 1 receive |
| Pin 22 | VSS β Ground reference |
| Pin 23 | RP30/TDO β Remappable I/O / JTAG TDO |
| Pin 24 | RP31/TDI β Remappable I/O / JTAG TDI |
| Pin 25 | RP32/TMS β Remappable I/O / JTAG TMS |
| Pin 26 | RP33/TCK β Remappable I/O / JTAG TCK |
| Pin 27 | VSS β Ground reference |
| Pin 28 | PGED1/PGEC1 β Programming data pair 1 / Programming clock pair 1 |
Typical Applications
DSPIC33CH64MP202-I/2N is suitable for 7 applications: Digital Switch-Mode Power Supplies (SMPS), Field-Oriented Control (FOC) Motor Drives, Automotive Body Electronics and Mechatronics, Industrial LED Lighting Drivers, Functional Safety (FuSa) Sensor Hubs, Smart Sensor and IoT Edge Nodes, PV/Battery Energy Storage Converters.
Digital Switch-Mode Power Supplies (SMPS)
The DSPIC33CH64MP202-I/2N fits digital SMPS applications because its slave core can execute a tight voltage-mode or peak-current-mode control loop at 200 MHz while the master core manages PMBus or CAN communication, housekeeping, and telemetry. The on-chip 250 ps high-resolution PWM module delivers fine-grained duty-cycle control, and CAN FD provides a robust industrial backbone for multi-rail telemetry and firmware updates.
Recommended
Field-Oriented Control (FOC) Motor Drives
The DSPIC33CH64MP202-I/2N is well matched to FOC motor drives since the slave core can run a 20-50 kHz torque loop deterministically while the master handles the upper state machine, encoder/sensor feedback parsing, and CAN/CAN-FD communication. The PWM resolution and ADC sampling flexibility simplify the current-sense timing path, allowing the device to replace a discrete MCU-plus-DSP pair in sub-2 kW industrial drives.
Recommended
Automotive Body Electronics and Mechatronics
The DSPIC33CH64MP202-I/2N serves automotive body modules (HVAC flaps, headlamp leveling, electric pumps) thanks to its dual-core partitioning: the master runs UDS over CAN-FD while the slave maintains precise actuator control. Note that this -I variant is industrial grade (-40C to +85C); AEC-Q100 automotive qualified parts exist separately in the dsPIC33CH family with VAO suffixes, which share the same silicon but add automotive qualification.
Recommended
Industrial LED Lighting Drivers
Adaptive LED color mixing and dimming is well handled by the DSPIC33CH64MP202-I/2N because the slave core keeps current-mode loops synchronized while the master runs DMX or DALI-2 protocol stacks. The PWM resolution down to 250 ps lets the same device drive high-brightness RGB arrays with sub-1% dimming accuracy, supporting color-tunable luminaires in commercial and architectural installations.
Recommended
Functional Safety (FuSa) Sensor Hubs
The DSPIC33CH64MP202-I/2N suits SIL-2 / ASIL-B systems because the two cores can run the same firmware in lockstep for diagnostic coverage, with built-in FuSa primitives reducing the need for an external watchdog MCU. With CAN FD, the chip aggregates diagnostics from multiple sensors and reports them up the safety chain in industrial machinery and process-control installations.
Recommended
Smart Sensor and IoT Edge Nodes
The dual-core partitioning makes the DSPIC33CH64MP202-I/2N attractive for IoT edge nodes where pre-processing must happen deterministically on the slave core while the master handles TLS-secured MQTT publish, OTA updates, and protocol translation. The CAN-FD and UART/SPI/I2C interfaces allow a single device to bridge industrial fieldbuses and IP-based management in gateway applications.
Recommended
PV/Battery Energy Storage Converters
Solar PV micro-inverters and battery-management converters benefit from the DSPIC33CH64MP202-I/2N's dual-core architecture, where the slave keeps an MPPT or converter control loop locked to a 100 kHz tick while the master manages grid-tie protection, anti-islanding, and communication. Combined with CAN FD for higher-level battery-stack synchronization, the chip can replace two discrete MCUs in 100 W to 1 kW converters.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33CH64MP202-I/2N β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33CH64MP202-E/2N | DSPIC33CH128MP202-I/SS | DSPIC33CH128MP202T-I/SS | DSPIC33CH64MP202-I/SS |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 28-pin UQFN (6x6 mm) | 28-pin UQFN (6x6 mm) - same | 28-pin SSOP | 28-pin SSOP | 28-pin SSOP |
| Program Flash | 88 KB | 88 KB | 128 KB | 128 KB | 88 KB |
| RAM (Master/Slave) | 16 KB + 4 KB | 16 KB + 4 KB | 16 KB + 4 KB | 16 KB + 4 KB | 16 KB + 4 KB |
| Core Architecture | Dual dsPIC33 cores (master+slave) | Dual dsPIC33 cores | Dual dsPIC33 cores | Dual dsPIC33 cores | Dual dsPIC33 cores |
| Master / Slave Frequency | 180 MHz / 200 MHz | 180 MHz / 200 MHz | 180 MHz / 200 MHz | 180 MHz / 200 MHz | 180 MHz / 200 MHz |
| Supply Voltage | 3.0 V to 3.6 V | 3.0 V to 3.6 V | 3.0 V to 3.6 V | 3.0 V to 3.6 V | 3.0 V to 3.6 V |
| Temperature Grade | Industrial -40C to +85C | Extended -40C to +125C | Industrial -40C to +85C | Industrial -40C to +85C | Industrial -40C to +85C |
| CAN FD | Yes | Yes | Yes | Yes | Yes |
| Functional Safety (FuSa) | Yes | Yes | Yes | Yes | Yes |
Key Differentiators
- Only 28-pin UQFN dual-core DSC in Microchip's portfolio with industrial-grade temperature rating (vs DSPIC33CH64MP202-I/SS)
- Flash memory sized for typical BLDC/PMSM control firmware plus communication stack (vs DSPIC33CH128MP202-I/SS)
- Industrial (-40C to +85C) temperature variant with immediate distributor stock (vs DSPIC33CH64MP202-E/2N)
Design Notes
Estimated: the 28-pin UQFN (6x6 mm) package requires a central thermal pad (typically grounded) and matched-length PDN traces on VDD/VSS. Place 100 nF ceramic decoupling plus 1-10 uF bulk caps within 2 mm of each VDD/VSS pair. The four VSS pins must be tied directly to the ground plane with vias to dissipate thermal losses without a heat sink.
When using the dual-core architecture, always use Microchip's MPLAB Harmony v3 configuration to allocate shared RAM regions and enable hardware semaphores (SEMA, RPx mutex) before both cores start. Race conditions on shared memory are the most common design pitfall; without semaphores the slave core can corrupt data mid-write by the master.
Estimated: at 200 MHz with both cores active, the DSPIC33CH64MP202-I/2N typically draws 70-95 mA from a 3.3 V supply; an LDO with at least 250 mA headroom should supply the rail. For low-noise applications, place a ferrite bead or pi filter between the switching regulator and the DSC VDD pin to prevent dV/dt ripple from coupling into the PLL.
Keep the ICSP/PGECx/PGEDx traces short and avoid routing them near PWM outputs or CAN-FD lines to prevent programming failures. Per Microchip's family reference manual, any of the multiple PGECx/PGEDx pairs can be used, but choose the pair with the shortest, least-crosstalked path to the programming header for production hand-rework accessibility.
Compliance Information
RoHS compliant per Microchip product listing. Industrial temperature variant not AEC-Q100 qualified - seek VAO automotive ordering codes for AEC-Q100. Functional Safety (FuSa) implementation is supported, allowing IEC 61508 / ISO 26262 system certifications at the application level.
