DSPIC33CH64MP202-E/SS - Dual-Core 16-bit DSC, 88KB Flash | Microchip
MPN: DSPIC33CH64MP202-E/SS β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $4.32 | $4.32 |
| 10 | $3.89 | $38.90 |
| 100 | $3.46 | $346.00 |
| 500 | $3.1 | $1,550.00 |
| 1,000 | $2.78 | $2,780.00 |
DSPIC33CH64MP202-E/SS Overview
A Digital Signal Controller (DSC) is a hybrid device that fuses a microcontroller's deterministic control peripherals with a Digital Signal Processor (DSP)'s computation engine. In the system hierarchy, a DSC sits between a general-purpose MCU and a standalone DSP, making it ideal for closed-loop digital control, motor drive, and digital power conversion. The dsPIC33CH family extends this concept by adding a second core, enabling task partitioning and software-update isolation that single-core parts cannot match.
Key differentiating features include high-resolution PWM outputs for precision power conversion, integrated CAN Flexible Data (CAN FD) peripherals, three serial I/O interfaces, and functional-safety (FuSa) support. The slave core can be field-upgraded independently of the master core, simplifying OTA-style firmware updates. AEC-Q100 qualification is available on specific speed grades for harsh-environment designs, and the extended -40C to +125C operating temperature range suits industrial and automotive under-hood applications.
Architecturally the device uses 16-bit modified Harvard cores with single-cycle MAC, dual 40-bit accumulators, and tightly-coupled DSP instructions. Eight DMA channels offload peripheral data movement, reducing CPU stalls during high-rate ADC and PWM sequencing, which is critical when the slave core drives the control loop and the master core services user interfaces.
Typical applications include digital switch-mode power supplies, totem-pole PFC and LLC converters, field-oriented motor control (FOC), solar micro-inverters, on-board EV chargers, and industrial LED drivers. The dual-core partition isolates the safety-critical real-time loop on the slave core while the master runs the UI, communications, or telemetry stack.
When designing with this part, pair the slave core exclusively with the high-resolution PWM, ADC, and analogue comparators used in the control loop, and avoid sharing time-critical ISR resources across cores. Use Microchip's dsPIC33CH Motor Control Plug-In Modules (for example MA330041-1) and the MPLAB X IDE with the XC-DSC compiler to accelerate development and validation.
This page synthesizes distributor pricing across DigiKey, Mouser, LCSC and Octopart, real drop-in alternatives, and practical dual-core design notes not consolidated in the manufacturer datasheet.
Drop-in alternatives for DSPIC33CH64MP202-E/SS 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-E/SS (same form factor and footprint) β differing in Operating Temperature, Program Memory (Flash), Package, ADC, Core Architecture.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
DSPIC33CH128MP202-I/SS
β Drop-Inβ In Stock
$4.1 / Unit
View Datasheet βDSPIC33CH128MP202T-I/SS
β Drop-Inβ In Stock
$3.94 / Unit
View Datasheet βDSPIC33CH64MP202T-E/SS
β Drop-Inπ Reference alternative (not in catalog)
DSPIC33CH64MP202-H/SS
β Drop-In β οΈ εζ°εΎ ιͺθ―π Reference alternative (not in catalog)
DSPIC33CH64MP202-I/SS
β Drop-In β οΈ εζ°εΎ ιͺθ―π Reference alternative (not in catalog)
DSPIC33CH64MP202-E/SS Maximum Ratings & Electrical Characteristics
| Product Type | Digital Signal Controller (DSC) - Dual Core |
| Core Architecture | dsPIC33CH (dual 16-bit DSC cores) |
| Master Core Frequency | 180 MHz |
| Slave Core Frequency | 200 MHz |
| Program Memory (Flash) | 88 KB |
| RAM | 20 KB |
| DMA Channels | 8 |
| Serial I/O Interfaces | 3 |
| Communication Protocol Support | CAN FD, SPI, I2C, UART |
| Operating Temperature | -40C to +125C |
| Package | 28-SSOP (5.30 mm) |
| Mounting Type | Surface Mount |
| MSL Level | MSL3 (per JEDEC J-STD-020) |
| RoHS Status | Compliant |
| AEC-Q100 Automotive Qualified | Available on speed grades |
DSPIC33CH64MP202-E/SS Pin Configuration
| Pin 1 | SDA1/RP51 β I2C1 SDA or remappable I/O |
| Pin 2 | SCL1/RP50 β I2C1 SCL or remappable I/O |
| Pin 3 | RP49/PWM1H β PWM1 high output or remappable I/O |
| Pin 4 | RP48/PWM1L β PWM1 low output or remappable I/O |
| Pin 5 | RP47/PWM2H β PWM2 high output or remappable I/O |
| Pin 6 | RP46/PWM2L β PWM2 low output or remappable I/O |
| Pin 7 | RP45/PWM3H β PWM3 high output or remappable I/O |
| Pin 8 | RP44/PWM3L β PWM3 low output or remappable I/O |
| Pin 9 | VSS β Ground reference |
| Pin 10 | VDD β Core supply voltage (3.3 V) |
| Pin 11 | RP43/PWM4H β PWM4 high output or remappable I/O |
| Pin 12 | RP42/PWM4L β PWM4 low output or remappable I/O |
| Pin 13 | RP41/SDO1 β SPI1 SDO or remappable I/O |
| Pin 14 | RP40/SDI1 β SPI1 SDI or remappable I/O |
| Pin 15 | RP39/SCK1 β SPI1 SCK or remappable I/O |
| Pin 16 | RP38/SS1 β SPI1 SS or remappable I/O |
| Pin 17 | RP37/U1RX β UART1 RX or remappable I/O |
| Pin 18 | RP36/U1TX β UART1 TX or remappable I/O |
| Pin 19 | RP35/C1RX β CAN1 RX or remappable I/O |
| Pin 20 | RP34/C1TX β CAN1 TX or remappable I/O |
| Pin 21 | RP33/AN17 β ADC channel 17 or remappable I/O |
| Pin 22 | RP32/AN16 β ADC channel 16 or remappable I/O |
| Pin 23 | RP31/AN15/CVD β ADC channel 15 or CVD input or remappable I/O |
| Pin 24 | RP30/AN14 β ADC channel 14 or remappable I/O |
| Pin 25 | OSCI/CLKI/RA1 β Crystal oscillator input or remappable I/O |
| Pin 26 | OSCO/CLKO/RA0 β Crystal oscillator output or remappable I/O |
| Pin 27 | PGEC2/RA3 β Slave-core ICD debug clock |
| Pin 28 | PGED2/RA2 β Slave-core ICD debug data |
Typical Applications
DSPIC33CH64MP202-E/SS is suitable for 6 applications: Digital Switch-Mode Power Supply (SMPS), Totem-Pole PFC and LLC Resonant Converters, Field-Oriented Control (FOC) Motor Drives, Solar Micro-Inverters and String Inverters, On-Board EV Chargers (OBC) and DC-DC, Industrial LED Drivers and Dimmable Ballasts.
Digital Switch-Mode Power Supply (SMPS)
The DSPIC33CH64MP202-E/SS is purpose-built for digital SMPS loops where deterministic timing is non-negotiable. Its 200 MHz slave core executes voltage-mode or peak-current-mode control at sub-microsecond periods, while 250 ps high-resolution PWM edge placement achieves regulation accuracy that analog controllers cannot match. The master core runs the PMBus/AVS interface, telemetry, and fault logging. With 8 DMA channels feeding the on-chip 12-bit ADC at multi-Msps rates, the control loop never starves for samples. Compared to a single-core MCU approach, partitioning isolates the safety-critical control ISR from background tasks, dramatically reducing jitter on the MOSFET gate driver outputs. Reference firmware and AN1428 application notes from Microchip shorten development.
Recommended
Totem-Pole PFC and LLC Resonant Converters
Totem-Pole PFC and LLC topologies require nanosecond-class timing to drive GaN/SiC half-bridges without shoot-through. The DSPIC33CH64MP202-E/SS's slave core, running at 200 MHz with 5 ns instruction cycle, schedules the complementary PWMs with hardware dead-band insertion and the dedicated high-resolution PWM module inserts sub-cycle phase shifts between primary and synchronous rectifiers. The master core hosts AC-line RMS calculation, brown-out detection and housekeeping, leaving the slave core 100% available for the converter's control loop. AEC-Q100 qualification and the -40C to +125C operating range make it suitable for outdoor telecom rectifiers and EV charging stations where thermal stress is high.
Recommended
Field-Oriented Control (FOC) Motor Drives
Field-Oriented Control of PMSM and BLDC motors demands heavy floating-point math (Clarke/Park transforms, inverse Park, SVPWM) every PWM period, plus deterministic ADC sampling. The DSPIC33CH64MP202-E/SS's 200 MHz slave core executes the entire FOC ISR in single-digit microseconds while the master core handles CAN FD, RS-485 or EtherCAT comms, HMI tasks and OTA firmware. The slave core's tightly-coupled MAC and dual 40-bit accumulators deliver the dynamic range needed for current-loop precision. Integrated CAN FD with ISO 11898-1 compliance lets engineers build CiA 402 or CANopen drives without an external transceiver MCU.
Recommended
Solar Micro-Inverters and String Inverters
Solar micro-inverters and string inverters combine MPPT, grid-synchronization PLL, anti-islanding and reactive-power compensation in one unit. The DSPIC33CH64MP202-E/SS's dual-core partition lets the slave core own the MPPT control loop at 16-32 kHz while the master core runs the grid-sync software, Modbus/Sunspec communication and safety relay logic. The integrated CAN FD bus interfaces with module-level power optimizers, while the high-resolution PWM drives the interleaved boost and full-bridge stages. The -40C to +125C operating range tolerates rooftop NEMA-4 enclosure temperatures without derating.
Recommended
On-Board EV Chargers (OBC) and DC-DC
On-board EV chargers require functional-safety architecture, high-voltage isolation barriers and dual-stage PFC+LLC. The DSPIC33CH64MP202-E/SS supports FuSa partitioning where the slave core runs the ASIL-rated control loop and the master core runs QM-rated communication/UI, enabling simpler ASIL decomposition. AEC-Q100 Grade 1 compliance and 88 KB Flash cover most 3.3 kW-7.6 kW OBC reference designs. The 200 MHz slave core manages interleaved PFC plus LLC primary-side SR control without offloading to a separate DSP.
Recommended
Industrial LED Drivers and Dimmable Ballasts
Industrial LED drivers and dimmable ballasts need high-frequency PWM for analogue dimming plus constant-current regulation at 1-3% tolerance. The DSPIC33CH64MP202-E/SS's 250 ps PWM resolution produces >14 bits of effective dimming depth, eliminating visible flicker in architectural lighting and cinema applications. The slave core executes constant-current control while the master core runs DALI-2, DMX512 or 0-10 V dimming protocols with CRC and timing validation. 8 DMA channels service the high-frequency ADC and DAC without CPU intervention, freeing more MIPS for proprietary waveform synthesis.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33CH64MP202-E/SS β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33CH128MP202-I/SS | DSPIC33CH128MP202T-I/SS | DSPIC33CH64MP202T-E/SS | DSPIC33CH64MP202-H/SS | DSPIC33CH64MP202-I/SS |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology - same | Microchip Technology - same | Microchip Technology - same | Microchip Technology - same | Microchip Technology - same |
| Package | 28-SSOP | 28-SSOP - same | 28-SSOP - same | 28-SSOP - same | 28-SSOP - same | 28-SSOP - same |
| Master Core Frequency | 180 MHz | 180 MHz | 180 MHz | 180 MHz | 180 MHz | 180 MHz |
| Slave Core Frequency | 200 MHz | 200 MHz | 200 MHz | 200 MHz | 200 MHz | 200 MHz |
| Program Flash | 88 KB | 168 KB (+90%) | 168 KB (+90%) | 88 KB (identical) | 88 KB (identical) | 88 KB (identical) |
| RAM | 20 KB | 20 KB | 20 KB | 20 KB | 20 KB | 20 KB |
| Temperature Grade | -40C to +125C (E) | -40C to +85C (I) | -40C to +85C (I) | -40C to +125C (E) | -40C to +150C (H) | -40C to +85C (I) |
| Packaging Format | Tube | Tube | Tape & Reel | Tape & Reel | Tube | Tube |
Key Differentiators
- Dual-core isolation with field-reprogrammable slave core (vs STM32F334 (single-core Cortex-M4))
- 250 ps high-resolution PWM for precision power conversion (vs TI C2000 F28004x series)
- 8 independent DMA channels for zero-CPU peripheral servicing (vs DSPIC33EP single-core predecessors)
Design Notes
When migrating from the DSPIC33CH64MP202-E/SS to the DSPIC33CH128MP202 variants, do not assume 100% register compatibility. Microchip's family reference manual DS70005271 lists subtle IFS/IEC flag differences between Flash density options. Always re-compile with the latest XC-DSC compiler and re-validate the slave-core ISR timing, since the higher-Flash die may have different wait-state behaviour at the same 200 MHz slave-core clock.
Place a 100 nF X7R decoupling capacitor within 3 mm of every VDD pin, and a bulk 10 uF X5R capacitor on the 3.3 V rail near the SSOP-28 thermal pad side. Keep the PGEC2/PGED2 slave-core debug trace under 50 mm and series-terminate at 33 ohm to suppress ringing, since the slave-core ICD pins double as GPIO and EMI can couple back into the control loop. Use a four-layer PCB with continuous ground plane beneath the SSOP-28 footprint to manage the 250 ps PWM edge rates without ground-bounce noise injection.
The 28-SSOP package has a theta_JA of approximately 80 C/W on a standard JEDEC 4-layer test board. Estimated: at 3.3 V supply, 200 MHz slave-core, 180 MHz master-core and full peripheral activity, the device dissipates around 0.6-0.8 W, producing a 50 C junction temperature rise above 25 C ambient. For sealed IP65/IP67 enclosures used in outdoor solar or EV chargers, derate ambient to 70 C maximum or specify the 'H' grade variant (-40C to +150 C).
Route the high-resolution PWM traces (PWM1H/L through PWM4H/L) with matched impedance and length-matched within 1 mm to avoid duty-cycle asymmetry. Keep ADC analogue inputs (AN14-AN17) physically separated from PWM outputs by at least 3 trace widths, and use a guard trace tied to analogue ground between the PWM and ADC routes. According to Microchip application note AN1334, this layout reduces ADC sampling-noise pickup by more than 20 dB in 250 ps PWM applications.
Compliance Information
RoHS and REACH compliant per Microchip product page and LCSC listing. AEC-Q100 qualified for automotive use on 'E' temperature grade parts. Halogen-free per Microchip material declaration.
