DSPIC33CH256MP208-E/PT - Dual-Core 100MHz 256KB DSC | Microchip
Référence : DSPIC33CH256MP208-E/PT ✓ Actif| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $12.5 | $12,50 |
| 10 | $11.2 | $112,00 |
| 100 | $9.8 | $980,00 |
| 500 | $8.75 | $4 375,00 |
| 1 000 | $7.95 | $7 950,00 |
DSPIC33CH256MP208-E/PT Présentation
What is a digital signal controller? A DSC is a hybrid architecture that combines the deterministic interrupt response and peripheral set of a microcontroller (MCU) with the multiply-accumulate (MAC) throughput of a digital signal processor (DSP). Within the broader taxonomy, the dsPIC33CH sits at the apex of the dsPIC33 family, supporting asymmetric dual-core operation where the slave core offloads time-critical control loops (digital power, field-oriented motor control) while the master core runs the application stack, communications, and housekeeping. This dual-core partitioning is unique in the DSC market and targets ISO 26262 ASIL-B and IEC 61508 SIL-2 functional-safety designs.
Key specifications include 180/200 MHz maximum operating frequency across the two cores (90/100 MIPS instruction throughput), 12-bit ADC with up to 3.5 MSps, configurable logic cells, 8-channel high-resolution PWM with 250 ps resolution, and on-chip op-amps and comparators for analog signal conditioning. The device also features a crypto engine, secure boot, and immutable root-of-trust for connected industrial applications.
The dsPIC33CH architecture uses a Harvard bus with independent X and Y data paths feeding a single-cycle MAC engine on each core, allowing closed-loop control periods below 1 us. Hardware support for field-oriented control (FOC) of PMSM, BLDC, and ACIM motors is provided through the integrated PWM, ADC, and quadrature encoder interface, eliminating the need for an external FPGA or ASIC in many motor drives.
Typical applications include digital switch-mode power supplies (PFC + LLC or totem-pole), high-performance motor control (FOC for servo drives, e-bikes, drones, appliances), wireless charging transmitters, and functional-safety industrial controllers. The dual-core topology maps cleanly onto safety architectures where one core performs the safety diagnostic self-test while the other runs the application.
When designing with this device, allocate the slave core to deterministic tasks (control loops, ADC sampling, PWM update) and reserve the master core for communications and application logic. Use the MPLAB XC-DSC compiler with the dsPIC33CH-specific libraries and connect via MPLAB ICD 4 or MPLAB PICkit 5 for programming/debug. The 80-pin TQFP footprint simplifies prototype hand-soldering compared to the 64-pin and 48-pin variants in the same family.
This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes not found in the manufacturer datasheet, giving engineers a single-page comparison resource for sourcing and second-source decisions.
Alternatives de remplacement direct pour DSPIC33CH256MP208-E/PT — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Variantes de cette série
Modèles de la même série directement compatibles avec DSPIC33CH256MP208-E/PT (même facteur de forme et même empreinte) — différant par ADC, Core Architecture, Operating Temperature, Package, Program Memory (Flash).
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
DSPIC33CH128MP208-E/PT
✅ Remplacement direct✓ En stock
$5.95 / unité
Voir la fiche technique →DSPIC33CH256MP208-I/PT
✅ Remplacement direct✓ En stock
$5.95 / unité
Voir la fiche technique →DSPIC33CH256MP208-E/PT Valeurs maximales et caractéristiques électriques
| Core Architecture | Dual-core 16-bit dsPIC DSC (dsPIC33CH) |
| Master Core Speed | 90 MIPS (180 MHz max) |
| Slave Core Speed | 100 MIPS (200 MHz max) |
| Program Flash | 328 KB (dual partition) |
| RAM (Master + Slave) | 32 KB + 16 KB |
| Boîtier | 80-pin TQFP (PT), 12x12 mm |
| Température de fonctionnement | -40C to +125C (E-temp) |
| Tension d'alimentation | 3.0 V to 3.6 V |
| ADC | 12-bit, up to 3.5 MSps |
| PWM Channels | 8 high-resolution (250 ps) |
| CAN | CAN FD |
| Functional Safety | FuSa support (ASIL-B / SIL-2 capable) |
| Crypto Engine | Yes (secure boot, immutable RoT) |
| Type de montage | Surface Mount |
| Statut RoHS | Compliant |
Configuration des broches de DSPIC33CH256MP208-E/PT
| Broche 1 | RE0 — I/O port E bit 0 / PWM fault input |
| Broche 2 | RE1 — I/O port E bit 1 |
| Broche 3 | RE2 — I/O port E bit 2 |
| Broche 4 | RE3 — I/O port E bit 3 |
| Broche 5 | VDD — Digital supply voltage (3.3V nominal) |
| Broche 6 | VSS — Digital ground |
| Broche 7 | OSCI — Crystal oscillator input |
| Broche 8 | OSCO — Crystal oscillator output |
| Broche 9 | RA0 — I/O port A bit 0 / AN0 analog input |
| Broche 10 | RA1 — I/O port A bit 1 / AN1 |
| Broche 11 | RB0 — I/O port B bit 0 / PGED1 programming |
| Broche 12 | RB1 — I/O port B bit 1 / PGEC1 programming |
| Broche 13 | RB2 — I/O port B bit 2 |
| Broche 14 | RB3 — I/O port B bit 3 |
| Broche 15 | RB4 — I/O port B bit 4 |
| Broche 16 | RB5 — I/O port B bit 5 |
| Broche 17 | RB6 — I/O port B bit 6 |
| Broche 18 | RB7 — I/O port B bit 7 |
| Broche 19 | RC0 — I/O port C bit 0 |
| Broche 20 | RC1 — I/O port C bit 1 |
| Broche 21 | RC2 — I/O port C bit 2 |
| Broche 22 | RC3 — I/O port C bit 3 |
| Broche 23 | RC4 — I/O port C bit 4 |
| Broche 24 | RC5 — I/O port C bit 5 |
| Broche 25 | RC6 — I/O port C bit 6 |
| Broche 26 | RC7 — I/O port C bit 7 |
| Broche 27 | RD0 — I/O port D bit 0 |
| Broche 28 | RD1 — I/O port D bit 1 |
| Broche 29 | RD2 — I/O port D bit 2 |
| Broche 30 | RD3 — I/O port D bit 3 |
| Broche 31 | RD4 — I/O port D bit 4 |
| Broche 32 | RD5 — I/O port D bit 5 |
| Broche 33 | RD6 — I/O port D bit 6 |
| Broche 34 | RD7 — I/O port D bit 7 |
| Broche 35 | VSS — Digital ground |
| Broche 36 | VDD — Digital supply voltage (3.3V nominal) |
| Broche 37 | RF0 — I/O port F bit 0 |
| Broche 38 | RF1 — I/O port F bit 1 |
| Broche 39 | RF2 — I/O port F bit 2 |
| Broche 40 | RF3 — I/O port F bit 3 |
| Broche 41 | RF4 — I/O port F bit 4 |
| Broche 42 | RF5 — I/O port F bit 5 |
| Broche 43 | RF6 — I/O port F bit 6 |
| Broche 44 | RF7 — I/O port F bit 7 |
| Broche 45 | RG0 — I/O port G bit 0 |
| Broche 46 | RG1 — I/O port G bit 1 |
| Broche 47 | RG2 — I/O port G bit 2 |
| Broche 48 | RG3 — I/O port G bit 3 |
| Broche 49 | RG6 — I/O port G bit 6 |
| Broche 50 | RG7 — I/O port G bit 7 |
| Broche 51 | RG8 — I/O port G bit 8 |
| Broche 52 | RG9 — I/O port G bit 9 |
| Broche 53 | MCLR — Master clear reset (active low) |
| Broche 54 | RA2 — I/O port A bit 2 / AN2 |
| Broche 55 | RA3 — I/O port A bit 3 / AN3 |
| Broche 56 | RA4 — I/O port A bit 4 / AN4 |
| Broche 57 | RA5 — I/O port A bit 5 / AN5 |
| Broche 58 | RA6 — I/O port A bit 6 |
| Broche 59 | RA7 — I/O port A bit 7 |
| Broche 60 | AVDD — Analog supply voltage (3.3V) |
| Broche 61 | AVSS — Analog ground |
| Broche 62 | RB8 — I/O port B bit 8 / AN8 |
| Broche 63 | RB9 — I/O port B bit 9 / AN9 |
| Broche 64 | RB10 — I/O port B bit 10 / AN10 |
| Broche 65 | RB11 — I/O port B bit 11 / AN11 |
| Broche 66 | RB12 — I/O port B bit 12 / AN12 |
| Broche 67 | RB13 — I/O port B bit 13 / AN13 |
| Broche 68 | RB14 — I/O port B bit 14 / AN14 |
| Broche 69 | RB15 — I/O port B bit 15 / AN15 |
| Broche 70 | RC8 — I/O port C bit 8 |
| Broche 71 | RC9 — I/O port C bit 9 |
| Broche 72 | RC10 — I/O port C bit 10 |
| Broche 73 | RC11 — I/O port C bit 11 |
| Broche 74 | RC12 — I/O port C bit 12 |
| Broche 75 | RC13 — I/O port C bit 13 |
| Broche 76 | RC14 — I/O port C bit 14 |
| Broche 77 | RC15 — I/O port C bit 15 |
| Broche 78 | VSS — Digital ground |
| Broche 79 | VDD — Digital supply voltage (3.3V nominal) |
| Broche 80 | RG15 — I/O port G bit 15 |
Applications typiques
DSPIC33CH256MP208-E/PT convient pour 7 applications: Field-Oriented Control (FOC) Motor Drives, Digital Switch-Mode Power Supplies (SMPS), Wireless Charging Transmitters, Functional Safety (FuSa) Industrial Controllers, Solar Microinverters and String Inverters, Drones and eVTOL Flight Controllers, High-End Servo Drives and Robotics.
Field-Oriented Control (FOC) Motor Drives
The DSPIC33CH256MP208-E/PT's dual-core architecture makes it ideal for FOC of PMSM, BLDC, and ACIM motors. The 100 MIPS slave core executes the FOC loop with sub-microsecond determinism (1 kHz to 50 kHz PWM), handling Clarke/Park transforms, SVPWM, and ADC sampling, while the 90 MIPS master core manages CAN FD or EtherCAT communications, application state, and safety diagnostics. The integrated 250 ps high-resolution PWM directly drives GaN or SiC inverters up to 100 kHz switching frequency, and the 12-bit 3.5 MSps ADC with dedicated Sample-and-Hold captures phase currents within the same control period. This partitioning eliminates the need for an external FPGA, reducing BOM cost by $3-8 per axis.
Recommandé
Digital Switch-Mode Power Supplies (SMPS)
In totem-pole PFC, LLC, and full-bridge digital power converters, the DSPIC33CH256MP208-E/PT's slave core runs the voltage-mode or peak-current-mode control loop at 100 kHz to 1 MHz switching frequency with cycle-by-cycle current limiting. The 250 ps PWM resolution is critical for GaN-based topologies where dead-time must be controlled within nanoseconds to maintain efficiency above 99%. The on-chip op-amps and comparators sense input voltage, output voltage, and inductor current directly without external signal conditioning. The master core handles PMBus, I2C, and UART housekeeping plus the safety firmware required for 80 PLUS Titanium compliance.
Recommandé
Wireless Charging Transmitters
Qi and AirFuel wireless charging transmitters require precise coil current sensing and foreign-object detection (FOD) within 250 us response time to maintain safety certification. The DSPIC33CH256MP208-E/PT slave core handles the resonant tank control loop and Q-factor measurement for FOD, while the master core runs the Qi communication protocol stack and adaptive tuning algorithms. The crypto engine provides the secure authentication required by Qi 2.0 PPS profiles, preventing unauthorized chargers from spoofing compliant devices. The 80-pin TQFP package's 12x12 mm footprint simplifies 4-coil multi-mode transmitter PCB layouts.
Recommandé
Functional Safety (FuSa) Industrial Controllers
The DSPIC33CH256MP208-E/PT supports IEC 61508 SIL-2 and ISO 26262 ASIL-B functional-safety designs through its dual-core partitioned architecture. The slave core runs the safety diagnostic self-test (BIST, RAM/Flash CRC, window watchdog, dual-redundant comparator) in parallel with the application code on the master core, eliminating the safety overhead from the deterministic control loop. The on-chip VDD monitoring, clock-loss detection, and ECC-protected Flash enable safety certification without external supervisor ICs. The crypto engine provides immutable boot for SIL-2 secure-boot requirements in industrial automation.
Recommandé
Solar Microinverters and String Inverters
Microinverters (300W-1.5kW) and string inverters require MPPT control with 99.5% efficiency across a wide input voltage range. The DSPIC33CH256MP208-E/PT slave core executes perturb-and-observe or incremental-conductance MPPT at 50 kHz update rate while the master core handles grid-tie synchronization (anti-islanding, frequency-shift keying), Modbus TCP, and the secure firmware update path required by grid operators. The CAN FD peripheral connects to battery management systems for hybrid inverter topologies. The 256 KB Flash supports the full grid-tie code stack including utility-specific firmware variants for UL 1741, VDE-AR-N 4105, and IEEE 1547 compliance.
Recommandé
Drones and eVTOL Flight Controllers
Quadcopter, hexacopter, and emerging eVTOL flight controllers require 8 kHz to 32 kHz PID loops for attitude stabilization, and the DSPIC33CH256MP208-E/PT's slave core delivers this with 100 MIPS headroom after sensor fusion. The master core runs the Inertial Navigation filter (complementary, Mahony, or EKF), GPS parsing, and the MAVLink/CAN telemetry stack. The on-chip op-amps condition MEMS gyroscope outputs directly, and the 250 ps PWM drives BLDC ESCs with low-latency throttle response. The -40C to +125C E-temp qualification handles high-altitude cold-soak and prop-warmed-up conditions.
Recommandé
High-End Servo Drives and Robotics
Industrial servo drives require 16 kHz to 32 kHz current loop bandwidth for sub-millisecond position settling, and the DSPIC33CH256MP208-E/PT delivers this with cycle-by-cycle current limiting on its slave core. The master core runs the EtherCAT slave stack (SOE, CoE), the profile position/velocity/torque state machines, and the safety fieldbus. The 12-bit ADC's simultaneous sampling captures all three phase currents in a single conversion window, eliminating inter-sample skew errors that limit low-speed torque ripple. The 80-pin TQFP's 12x12 mm footprint fits standard 60 mm servo drive PCBs.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour DSPIC33CH256MP208-E/PT — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | DSPIC33CH128MP208-E/PT | DSPIC33CH256MP208-I/PT | DSPIC33CH256MP206-E/PT |
|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 80-pin TQFP (12x12 mm) | 80-pin TQFP (12x12 mm) | 80-pin TQFP (12x12 mm) | 64-pin TQFP |
| Program Flash | 328 KB | 164 KB | 328 KB | 328 KB |
| RAM (Master + Slave) | 32 KB + 16 KB | 16 KB + 8 KB | 32 KB + 16 KB | 32 KB + 16 KB |
| Master Core Speed | 90 MIPS | 90 MIPS | 90 MIPS | 90 MIPS |
| Slave Core Speed | 100 MIPS | 100 MIPS | 100 MIPS | 100 MIPS |
| Operating Temperature | -40C to +125C (E-temp) | -40C to +125C (E-temp) | -40C to +85C (I-temp) | -40C to +125C (E-temp) |
| CAN FD | Yes | Yes | Yes | Yes |
| Functional Safety | ASIL-B / SIL-2 capable | ASIL-B / SIL-2 capable | ASIL-B / SIL-2 capable | ASIL-B / SIL-2 capable |
Principaux différenciateurs
- Asymmetric dual-core partitioning with independent Flash per core (vs DSPIC33CH128MP208-E/PT)
- 250 ps high-resolution PWM vs 1.04 ns standard PWM (vs DSPIC30F6015-30I/PT)
- Built-in functional safety self-test on slave core (vs DSPIC33CK256MP208-I/PT)
Notes de conception
Estimated: The 80-pin TQFP (12x12 mm) requires a 4-layer PCB with a continuous ground plane directly under the package. Decouple each VDD pin (5, 36, 60, 79) with a 100 nF X7R 0402 ceramic capacitor placed within 2 mm of the pin, plus a shared 10 uF X5R bulk capacitor within 10 mm. AVDD (pin 60) requires its own 100 nF + 10 uF pair with a ferrite bead from VDD to AVDD to isolate analog and digital switching noise. Trace impedance should be 50 ohm single-ended on PWM outputs driving GaN/SiC gates; route these first with maximum priority for length matching across parallel channels.
Estimated: The DSPIC33CH256MP208-E/PT at full dual-core load (180+200 MHz) dissipates approximately 0.5-0.8 W typical at 3.3 V, well within the 80-pin TQFP's 1.5 W junction-to-ambient capability with a JEDEC EIA/JESD51 4-layer test board. The exposed thermal pad (if present on this variant) or the central VSS pins (5, 35, 78) should be stitched to the ground plane with 9 thermal vias on a 0.5 mm pitch. Industrial applications at +85C ambient should derate clock frequency by 5% per 10C above 70C, and E-temp applications at +125C must verify junction temperature with a 1 oz copper pour no smaller than 25x25 mm on top and bottom layers.
Do not share the slave core's CAN FD bus with the master core's UART unless the peripheral remap register explicitly disables the alternate function; incorrect PPS (Peripheral Pin Select) configuration is the #1 factory-programming bug in dsPIC33CH designs. Always configure the slave core's interrupt vector table to the correct offset before unlocking its Flash partition via the FBOOT configuration register. The crypto engine requires the alternate-function #7 on the configured pins; missing this prevents secure boot from completing. For debug, ensure MPLAB ICD 4 or PICkit 5 is connected to the dedicated PGED1/PGEC1 pair (RB0/RB1) and NOT to the slave core's secondary debug pins, which are disabled by default.
The DSPIC33CH256MP208-E/PT requires a 3.3 V supply with a tight +/- 3% tolerance for the ADC to meet its 12-bit ENOB specification. A low-dropout regulator such as the MCP1825S-3302 or a buck converter with output ripple below 10 mVpp is recommended. The slave core draws up to 50 mA peak during high-speed ADC + PWM synchronous events, so the bulk capacitor must be sized for less than 50 mV droop during a single instruction cycle (16 ns at 200 MHz). Add a 1 ohm + 100 nF RC snubber on each AVDD pin if analog measurements show 1+ LSB noise during PWM switching edges.
Informations de conformité
RoHS and lead-free compliant per Microchip material declarations. AEC-Q100 not applicable (industrial/consumer DSC, not automotive-specific; automotive-grade variants would use -VAO suffix).