DSPIC33CH512MP205-I/PT - Dual-Core DSC, 100 MIPS, 512KB Flash | Microchip
MPN: DSPIC33CH512MP205-I/PT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $9.85 | $9.85 |
| 10 | $8.92 | $89.20 |
| 100 | $7.95 | $795.00 |
| 500 | $7.1 | $3,550.00 |
| 1,000 | $6.45 | $6,450.00 |
DSPIC33CH512MP205-I/PT Overview
A Digital Signal Controller is a hybrid MCU+DSP class device that combines a deterministic microcontroller core with a single-cycle MAC DSP engine, enabling tightly-coupled control loops and high-rate signal processing on a single chip. The dsPIC33CH family escalates this concept with a heterogeneous dual-core architecture where the slave core offloads time-critical DSP, math, and peripheral management while the master core handles application logic, communication stacks, and housekeeping — a pattern that replaces external companion DSP chips in cost-sensitive motor control and digital power designs.
Key features include dual dsPIC DSC cores with independent DSP engines, integrated High-Resolution PWM (HRPWM) with 250 ps resolution, multiple CAN FD interfaces, 12-bit ADC modules at up to 3.5 Msps, and configurable logic cells for hardware event sequencing. The 512 KB Flash supports live update of the slave core code from the master, enabling in-field firmware partitioning and secure code isolation between cores.
Typical applications include high-performance motor control (PMSM, BLDC, ACIM), digital power conversion (totem-pole PFC, LLC, phase-shifted full-bridge), industrial servo drives, EV traction inverters, and high-density LED lighting drivers. The dual-core split lets the slave run a 100 kHz control loop while the master manages Ethernet, UART diagnostics, and HMI updates without task-jitter. According to the manufacturer datasheet, AEC-Q100 Grade 1 qualified variants (DSPIC33CH512MP505 family) extend operation to +150C junction for automotive under-hood applications.
When designing with this device, partition DSP-heavy work onto the slave core early in the firmware architecture and reserve the master for communication, state machines, and supervisory logic. Use the on-chip High-Resolution PWM with the dedicated 16-bit timer base to keep switching edge jitter below 2 ns in digital-power feedback loops. For motor control, leverage the integrated op-amps and 12-bit ADC for current sensing without external analog front-end ICs.
Drop-in alternatives for DSPIC33CH512MP205-I/PT — 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 DSPIC33CH512MP205-I/PT (same form factor and footprint) — differing in Core Architecture, Package, ADC, Operating Temperature, Slave Core Speed.
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✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33CH512MP205-I/PT Maximum Ratings & Electrical Characteristics
| Product Family | dsPIC33CH |
| Core Architecture | Dual 16-bit dsPIC DSC cores (Master + Slave) |
| Master Core Speed | 90 MIPS |
| Slave Core Speed | 100 MIPS |
| Program Memory (Flash) | 512 KB |
| SRAM | 73 KB |
| Operating Voltage Range | 3.0 V to 3.6 V |
| Operating Temperature Range | -40 C to +85 C (Industrial) |
| Package | 48-TQFP (7x7 mm) |
| ADC | 2x 12-bit, up to 3.5 Msps |
| High-Resolution PWM | Yes, 250 ps edge resolution |
| CAN FD Interfaces | Multiple |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
| Peripheral Family | DSP, DSC |
| Pin Count | 48 |
DSPIC33CH512MP205-I/PT Pin Configuration
| Pin 1 | RP46/RB14 — Remappable I/O / PWM |
| Pin 2 | RP47/RB15 — Remappable I/O / PWM |
| Pin 3 | VSS — Ground |
| Pin 4 | VDD — Digital supply (3.0-3.6 V) |
| Pin 5 | PWM1L — HRPWM 1 Low output |
| Pin 6 | PWM1H — HRPWM 1 High output |
| Pin 7 | PWM2L — HRPWM 2 Low output |
| Pin 8 | PWM2H — HRPWM 2 High output |
| Pin 9 | PWM3L — HRPWM 3 Low output |
| Pin 10 | PWM3H — HRPWM 3 High output |
| Pin 11 | PWM4L — HRPWM 4 Low output |
| Pin 12 | PWM4H — HRPWM 4 High output |
| Pin 13 | VDD — Digital supply (3.0-3.6 V) |
| Pin 14 | VSS — Ground |
| Pin 15 | AN0 — Analog input 0 / ADC |
| Pin 16 | AN1 — Analog input 1 / ADC |
| Pin 17 | AN2 — Analog input 2 / ADC |
| Pin 18 | AN3 — Analog input 3 / ADC |
| Pin 19 | AN4 — Analog input 4 / ADC |
| Pin 20 | AN5 — Analog input 5 / ADC |
| Pin 21 | AVDD — Analog supply |
| Pin 22 | AVSS — Analog ground |
| Pin 23 | AN6 — Analog input 6 / ADC |
| Pin 24 | AN7 — Analog input 7 / ADC |
| Pin 25 | DAC1 — DAC output 1 |
| Pin 26 | OPA1IN+ — Op-amp 1 non-inverting input |
| Pin 27 | OPA1IN- — Op-amp 1 inverting input |
| Pin 28 | OPA1OUT — Op-amp 1 output |
| Pin 29 | C1RX — CAN 1 receive |
| Pin 30 | C1TX — CAN 1 transmit |
| Pin 31 | PGEC1 — ICSP clock (master / slave selectable) |
| Pin 32 | PGED1 — ICSP data (master / slave selectable) |
| Pin 33 | PGEC2 — ICSP clock pair 2 |
| Pin 34 | PGED2 — ICSP data pair 2 |
| Pin 35 | OSCI — Crystal / clock input |
| Pin 36 | OSCO — Crystal output |
| Pin 37 | RP32/RB0 — Remappable I/O / PWM |
| Pin 38 | RP33/RB1 — Remappable I/O / PWM |
| Pin 39 | RP34/RB2 — Remappable I/O / PWM |
| Pin 40 | RP35/RB3 — Remappable I/O / PWM |
| Pin 41 | RP36/RB4 — Remappable I/O / PWM |
| Pin 42 | RP37/RB5 — Remappable I/O / PWM |
| Pin 43 | RP38/RB6 — Remappable I/O / PWM |
| Pin 44 | RP39/RB7 — Remappable I/O / PWM |
| Pin 45 | RP40/RB8 — Remappable I/O / PWM |
| Pin 46 | RP41/RB9 — Remappable I/O / PWM |
| Pin 47 | RP42/RB10 — Remappable I/O / PWM |
| Pin 48 | RP43/RB11 — Remappable I/O / PWM |
Typical Applications
DSPIC33CH512MP205-I/PT is suitable for 7 applications: High-Performance PMSM / BLDC Motor Control, Digital Power Conversion (Totem-Pole PFC / LLC), Industrial Servo Drives and Robotics, EV Traction Inverter Controllers, High-Density LED Lighting Drivers, Solar Inverter and Energy Storage Controllers, Functional-Safety Industrial Drives (SIL 2/3).
High-Performance PMSM / BLDC Motor Control
The DSPIC33CH512MP205-I/PT is engineered for high-performance permanent-magnet synchronous motor (PMSM) and brushless DC (BLDC) control. Its dual-core architecture lets the 100 MIPS slave core execute field-oriented control (FOC) at 20-50 kHz PWM switching frequency while the 90 MIPS master core handles CAN FD comms, UART, encoder feedback, and fault diagnostics. The integrated 250 ps High-Resolution PWM eliminates switching-edge jitter that would otherwise distort current sensing, while the 12-bit 3.5 Msps ADC samples phase currents with sub-microsecond latency. The 512 KB Flash supports advanced algorithms like sensorless sliding-mode observers and MTPA / field-weakening tables without external memory.
Recommended
Digital Power Conversion (Totem-Pole PFC / LLC)
For digital power topologies such as totem-pole PFC, interleaved PFC, LLC, and phase-shifted full-bridge converters, the DSPIC33CH512MP205-I/PT delivers the deterministic DSP throughput and tight HRPWM edge control required. The 250 ps PWM resolution directly lowers THD in PFC stages and improves regulation bandwidth in LLC resonant converters. The slave core runs the high-rate voltage/current control loop while the master handles housekeeping, telemetry, and PMBus / UART supervisory comms. With 73 KB SRAM the slave core can cache complex look-up tables for adaptive dead-time compensation without Flash wait-states.
Recommended
Industrial Servo Drives and Robotics
Industrial servo drives and 6-axis robot controllers demand deterministic torque loops and multi-axis synchronization. The DSPIC33CH512MP205-I/PT partitions a single DSC per axis, with the slave core closing the torque loop at 32 kHz and the master core managing EtherCAT-style communication stacks. Integrated configurable logic cells (CLC) and high-speed comparators enable hardware-level fault detection within 100 ns, critical for functional-safety designs. The -40C to +85C industrial temperature grade supports factory-floor deployment without additional thermal management.
Recommended
EV Traction Inverter Controllers
For electric-vehicle traction motor inverters, the DSPIC33CH512MP205-I/PT (industrial temperature grade) and its AEC-Q100 sibling DSPIC33CH512MP505 family deliver dual-core DSP+MCU integration for FOC-based traction control. The slave core runs torque-control loops at 20 kHz while the master handles CAN FD vehicle-network comms and ISO 26262 diagnostics. The 250 ps HRPWM minimizes current ripple at the traction motor, extending driving range and reducing acoustic noise. According to the manufacturer datasheet, AEC-Q100 Grade 1 variants extend operation to +150C junction for under-hood mounting.
Recommended
High-Density LED Lighting Drivers
High-density LED drivers and stage-lighting fixtures use the DSPIC33CH512MP205-I/PT for per-channel current regulation and color-mixing algorithms. The 16-bit PWM resolution from HRPWM delivers 16-bit dimming depth at 1 kHz refresh rates, enabling smooth theatrical fades. The slave core can compute per-channel CCT (correlated color temperature) calibration while the master runs DMX-512 / RDM or DALI lighting-protocol stacks. The 512 KB Flash allows full on-chip lighting-effect libraries without external memory, reducing BOM cost in high-channel-count fixtures.
Recommended
Solar Inverter and Energy Storage Controllers
Solar inverters and battery energy storage system (BESS) controllers leverage the DSPIC33CH512MP205-I/PT's dual-core architecture to handle MPPT algorithms on the slave core while the master manages grid-synchronization, anti-islanding detection, and Modbus / SunSpec comms. The 250 ps HRPWM enables sub-1% THD current shaping at the inverter output, supporting grid-code compliance. The 73 KB SRAM allows real-time logging of MPPT trajectory without burdening the control loop. The industrial temperature range supports outdoor inverter deployments without additional heating.
Recommended
Functional-Safety Industrial Drives (SIL 2/3)
For functional-safety industrial drives requiring IEC 61508 SIL 2 / SIL 3 compliance, the DSPIC33CH512MP205-I/PT's heterogeneous dual-core architecture provides hardware redundancy: the slave and master cores run independent copies of the safety diagnostic code and cross-check results within one PWM cycle. The integrated high-speed analog comparators and CLC peripherals detect over-current and over-voltage faults within 100 ns, well below the typical 1 ms fault-response budget. The 512 KB Flash stores both the safety library and the application code without external memory, simplifying FMEDA analysis.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33CH512MP205-I/PT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33CH256MP205-I/PT | DSPIC33CH256MP206-I/PT | DSPIC33CH256MP208-I/PT | DSPIC33CH128MP205-I/PT | DSPIC33CH128MP206-I/PT | DSPIC33CH128MP208-I/PT |
|---|---|---|---|---|---|---|---|
| Package | 48-TQFP (7x7 mm) | 48-TQFP (7x7 mm) - same | 48-TQFP (7x7 mm) - same | 48-TQFP (7x7 mm) - same | 48-TQFP (7x7 mm) - same | 48-TQFP (7x7 mm) - same | 48-TQFP (7x7 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 512 KB | 256 KB | 256 KB | 256 KB | 128 KB | 128 KB | 128 KB |
| SRAM | 73 KB | 64 KB | 64 KB | 64 KB | 32 KB | 32 KB | 32 KB |
| Master Core MIPS | 90 MIPS | 90 MIPS | 90 MIPS | 90 MIPS | 90 MIPS | 90 MIPS | 90 MIPS |
| Slave Core MIPS | 100 MIPS | 100 MIPS | 100 MIPS | 100 MIPS | 100 MIPS | 100 MIPS | 100 MIPS |
| HRPWM Resolution | 250 ps | 250 ps | 250 ps | 250 ps | 250 ps | 250 ps | 250 ps |
| Operating Temperature | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C |
| Operating 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 | 3.0 V to 3.6 V | 3.0 V to 3.6 V |
| Approx. Unit Price (qty 1) | $9.85 | Lower than this part | Lower than this part | Lower than this part | Lower than this part | Lower than this part | Lowest of the listed alternatives |
Key Differentiators
- Largest Flash in the dsPIC33CH 48-pin family (vs DSPIC33CH256MP205-I/PT)
- Highest SRAM density in the 48-pin dsPIC33CH family (vs DSPIC33CH128MP205-I/PT)
- Dual-core DSC architecture (unique to Microchip) (vs TI C2000 TMS320F28004x)
- 250 ps HRPWM edge resolution on-chip (vs ST STM32G474)
Design Notes
Use a 10 uF + 0.1 uF decoupling capacitor pair on every VDD pin and place within 2 mm of each VDD/VSS pair. The DSPIC33CH512MP205-I/PT has multiple VDD pins (digital, ADC, PLL) that each require independent decoupling. Estimated: at 200 MIPS combined throughput, average core current draw is 60 mA at 3.3 V, so the 3.3 V rail must source at least 100 mA peak transient. Per Microchip's dsPIC33CH datasheet, AVDD should be filtered with a ferrite bead or 10 ohm RC to the digital 3.3 V rail.
Place the high-speed analog inputs (AN0-AN7) and op-amp pins (OPA1IN+, OPA1IN-, OPA1OUT) on the same PCB side as the current-sense shunt resistors. Keep analog ground (AVSS) and digital ground (VSS) connected at a single point near the DSC to avoid ground-loop noise coupling into current measurements. Per the manufacturer datasheet, expose the package's thermal pad to a copper pour to dissipate the ~0.5 W typical dissipation.
Do not connect both PGEC1/PGED1 and PGEC2/PGED2 ICSP pairs to the same programmer simultaneously - the dsPIC33CH has dual cores and each ICSP pair targets a specific core. When debugging the slave core, use PGEC3/PGED3 (not present on 48-pin TQFP variant); for the 48-pin variant, use PGEC2/PGED2 for the slave. Per the manufacturer datasheet, ensure MCLR is pulled high via 10 kohm and never left floating during normal run.
The HRPWM outputs have 250 ps edge resolution; routing these signals to gate drivers requires 50 ohm controlled-impedance traces and matched trace lengths within 5 mm if used in complementary pairs (PWMxL/PWMxH). Estimated: at 250 ps resolution, jitter on the gate-driver output translates to approximately 0.5% duty-cycle error at 100 kHz switching, which is acceptable for motor control but may require tighter layout for digital-power feedback loops. Source: Microchip HRPWM application notes.
Compliance Information
Industrial temperature grade only - AEC-Q100 Grade 1 variants are in the DSPIC33CH512MP505 family (different pinout, not drop-in). RoHS and REACH compliant per Microchip product page.
