DSPIC33CH512MP508T-I/PT - 100MHz Dual-Core 16-bit DSC | Microchip
MPN: DSPIC33CH512MP508T-I/PT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $6.85 | $6.85 |
| 10 | $6.15 | $61.50 |
| 100 | $5.42 | $542.00 |
| 500 | $4.78 | $2,390.00 |
| 1,000 | $4.22 | $4,220.00 |
DSPIC33CH512MP508T-I/PT Overview
A Digital Signal Controller (DSC) is a hybrid microcontroller that combines a high-performance 16-bit MCU core with DSP functionality such as single-cycle MAC, hardware barrel shifter, and zero-overhead looping. The dsPIC33CH family sits in the broader hierarchy of MCU -> microcontroller with DSP -> Digital Signal Controller -> embedded control IC, and is optimized for real-time deterministic control where conventional MCUs cannot close the loop fast enough. The dual-core 'CH' variant extends this by adding a slave core that runs independently of the master, enabling parallel software development and hardware-isolated functional safety designs.
Key features include high-resolution PWM with 250 ps duty-cycle resolution for digital power conversion, four 12-bit ADC modules with up to 24 channels and 3.5 MSPS throughput, CAN FD, SENT, multiple UART/SPI/IxS interfaces, and a built-in op-amp comparator. The device also offers a Programmable RAM (PRAM) partition for isolating safety software from the application core, plus CIP (Core Independent Peripherals) that offload tasks from the CPU. Operating voltage is 3.0V to 3.6V with industrial -40C to +85C temperature range and tape-and-reel packaging for high-volume assembly.
The 'CH' architecture uses a master/slave core arrangement with shared peripherals and dedicated interrupts, allowing deterministic inter-core communication through hardware mailboxes and shared RAM. The slave core is launched by the master and executes code from a dedicated PRAM partition, providing both performance scaling and ASIL-B/SIL2-class functional safety isolation in a single silicon die, which is unusual among 16-bit microcontrollers.
Typical applications include field-oriented motor control (FOC) for industrial drives and traction inverters, digital switched-mode power supplies, automotive sensor fusion, and LED lighting controllers. The integrated op-amps and high-resolution PWM also make it well suited to LLC and PFC power stages where loop bandwidth and duty-cycle accuracy are critical.
When designing with this part, ensure PCB layout provides adequate copper area for thermal dissipation at higher CPU loads and that the dual-core debug toolchain (MPLAB X IDE with XC-DSC compiler) is provisioned before code development begins.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone, helping engineers shorten sourcing and bring-up time.
Drop-in alternatives for DSPIC33CH512MP508T-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 DSPIC33CH512MP508T-I/PT (same form factor and footprint) — differing in Operating Temperature, Package, Program Flash, Core Architecture, High-Resolution PWM.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33CH512MP506T-I/PT
✅ Drop-In✓ In Stock
$6.1 / Unit
View Datasheet →DSPIC33CH512MP506T-I/PT
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$6.1 / Unit
View Datasheet →DSPIC33CH512MP208T-I/PT
✅ Drop-In✓ In Stock
$6.9 / Unit
View Datasheet →DSPIC33CH256MP508-I/PT
✅ Drop-In✓ In Stock
$5.84 / Unit
View Datasheet →DSPIC33CH256MP508-I/PT
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$5.84 / Unit
View Datasheet →DSPIC33CH128MP508-I/PT
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33CH512MP508T-I/PT Maximum Ratings & Electrical Characteristics
| Product Type | Digital Signal Controller (DSC) |
| Core Architecture | Dual-core 16-bit dsPIC DSC |
| Master Core Speed | 100 MIPS (max) |
| Slave Core Speed | 90 MIPS (max) |
| Program Flash | 512 KB |
| Auxiliary Flash | 24 KB |
| Data SRAM | 72 KB |
| Programmable RAM (PRAM) | Yes (Functional Safety partition) |
| ADC Modules | 4 x 12-bit, up to 3.5 MSPS |
| ADC Channels | 24 (max) |
| High-Resolution PWM | 250 ps duty-cycle resolution |
| CAN FD | Yes |
| SENT Interface | Yes |
| Operating Voltage | 3.0 V to 3.6 V |
| Operating Temperature | -40 C to +85 C (Industrial) |
| Package | 80-pin TQFP (12x12 mm) |
| Mounting Type | Surface Mount |
| MSL Level | 3 (168 hours) |
| RoHS Status | Compliant |
| Functional Safety | FuSa-capable (ASIL-B/SIL2 design support) |
DSPIC33CH512MP508T-I/PT 80-pin tqfp (12x12 mm) Pin Configuration Guide
Pin configuration for DSPIC33CH512MP508T-I/PT (80-pin tqfp (12x12 mm) package). This digital IC includes GPIO, communication interfaces (UART, SPI, I2C), and power pins. Refer to the manufacturer datasheet for alternate pin functions and configuration options. Essential for embedded system design and PCB layout.
No detailed pinout data available for DSPIC33CH512MP508T-I/PT.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33CH512MP508T-I/PT is suitable for 6 applications: Field-Oriented Control (FOC) Motor Drives, Digital Switched-Mode Power Supplies (SMPS), Automotive Sensor Fusion and Actuator Control, Solar Inverter MPPT Control, Industrial Servo Drives and Robotics, LED Lighting and Stage Dimming Controllers.
Field-Oriented Control (FOC) Motor Drives
The DSPIC33CH512MP508T-I/PT is purpose-built for FOC motor control, where its 100 MIPS master core can execute the 18 kHz current loop with full Park/Clarke transforms and SVPWM modulation within 30% CPU budget. The slave core runs the slower speed/torque loop, CANopen stack, or sensorless observer in parallel, eliminating the scheduling jitter that plagues interrupt-driven single-core designs. The 250 ps high-resolution PWM produces 16-bit effective duty resolution, removing audible torque ripple in 4 kHz to 8 kHz switching range. The 12-bit ADC at 3.5 MSPS handles simultaneous phase-current sampling with sub-microsecond latency, while the integrated op-amps condition Hall-effect or shunt signals without external components. This combination delivers ASIL-B-capable FOC for industrial servo, traction inverters, and pump/fan drives from a single chip.
Recommended
Digital Switched-Mode Power Supplies (SMPS)
In digital SMPS designs such as totem-pole PFC, LLC, and full-bridge converters, the DSPIC33CH512MP508T-I/PT's 250 ps PWM resolution and 100 MIPS throughput enable cycle-by-cycle control of high-frequency power stages. The master core executes the voltage-mode or current-mode control loop at 500 kHz to 1 MHz switching frequency with hardware-accelerated slope compensation, while the slave core handles housekeeping tasks like PMBus communication, telemetry, and soft-start sequencing. The 12-bit ADC's 3.5 MSPS sampling rate supports average-current-mode control where multiple shunt voltages must be sampled per switching cycle. The wide 3.0V to 3.6V supply range accommodates auxiliary bias rails typical in 48V telecom and 400V EV DC/DC stages, with industrial temperature grade ensuring reliable operation in enclosed power enclosures.
Recommended
Automotive Sensor Fusion and Actuator Control
The DSPIC33CH512MP508T-I/PT is well suited to automotive body and chassis ECUs that combine multiple sensor inputs (IMU, wheel-speed, current sense) with real-time actuator control. The dual-core architecture allows the master core to run the deterministic control loop for steering or braking actuators at fixed 1 ms cadence, while the slave core manages CAN FD stack, diagnostics (UDS/KWP2000), and watchdog logic. The CAN FD peripheral supports 5 Mbps data phase for modern automotive networks alongside legacy 500 kbps CAN 2.0B nodes. Functional Safety features (PRAM partitioning, hardware mailbox) provide the architectural primitives needed to develop ASIL-B-class applications. Operating across -40C to +85C with the industrial temperature grade ensures deployment under-hood or in cabin environments.
Recommended
Solar Inverter MPPT Control
Photovoltaic inverter Maximum Power Point Tracking (MPPT) controllers benefit from the DSPIC33CH512MP508T-I/PT's combination of high-speed ADC sampling and dual-core throughput. The master core runs the Perturb-and-Observe or Incremental Conductance MPPT algorithm at 10 Hz to 100 Hz, while the slave core performs grid-synchronization PLL and anti-islanding detection per UL 1741 / IEEE 1547. The 12-bit ADC's simultaneous sampling of input voltage and current enables accurate power calculation under rapidly changing irradiance, while the high-resolution PWM drives the boost or interleaved PFC stage with sub-percent THD. The 512 KB Flash accommodates complex grid-code firmware without external memory, and the industrial temperature range supports outdoor inverter enclosures.
Recommended
Industrial Servo Drives and Robotics
Industrial servo amplifiers driving permanent-magnet synchronous motors (PMSM) or brushless DC motors require precise torque, velocity, and position loops running concurrently. The DSPIC33CH512MP508T-I/PT enables 32 kHz current loop closure with the master core while the slave core executes EtherCAT or CANopen DS402 communication stack and trajectory planner. The high-resolution PWM provides the smooth torque output required for CNC spindle drives, robotic joints, and pick-and-place stages, while integrated op-amps condition resolver or encoder feedback signals. The 80-pin TQFP package is industry-standard for servo PCBs and pairs naturally with companion gate-driver ICs. Functional Safety primitives support SIL2-class designs for collaborative robots and machine-tool axes.
Recommended
LED Lighting and Stage Dimming Controllers
Professional LED lighting fixtures and stage dimmers use the DSPIC33CH512MP508T-I/PT to drive high-frequency PWM outputs at 16-bit resolution for flicker-free dimming across the entire 0% to 100% range. The master core manages the DMX-512 or Art-Net protocol stack while the slave core generates precisely-timed PWM channels for RGBW LED arrays with hardware dead-band control. The high-resolution PWM (250 ps) eliminates visible flicker at all dimming levels, critical for film and broadcast applications where 100 Hz+ refresh is required. The integrated op-amps sense LED current for closed-loop constant-current regulation without additional silicon, reducing BOM cost. The 3.0V to 3.6V supply range aligns with typical 5V-to-3.3V LDO rails in lighting fixtures.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33CH512MP508T-I/PT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33CH512MP506T-I/PT | DSPIC33CH512MP208T-I/PT | DSPIC33CH256MP508-I/PT | DSPIC33CH128MP508-I/PT |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 80-pin TQFP (12x12 mm) | 80-pin TQFP (PT) - same | 80-pin TQFP (PT) - same | 80-pin TQFP (PT) - same | 80-pin TQFP (PT) - same |
| Program Flash | 512 KB | 512 KB | 512 KB | 256 KB | 128 KB |
| Master Core Speed | 100 MIPS | 100 MIPS | 100 MIPS | 100 MIPS | 100 MIPS |
| Functional Safety (FuSa) | Yes (ASIL-B capable) | Yes | No | Yes | Yes |
| CAN FD | Yes | Yes | Yes | Yes | Yes |
| High-Resolution PWM | 250 ps | 250 ps | 250 ps | 250 ps | 250 ps |
| ADC Sampling Rate | 3.5 MSPS | 3.5 MSPS | 3.5 MSPS | 3.5 MSPS | 3.5 MSPS |
Key Differentiators
- Dual-core 100/90 MIPS topology in a single 16-bit DSC (vs DSPIC33CH256MP508-I/PT)
- Integrated Functional Safety (FuSa) with PRAM partitioning (vs DSPIC33CH512MP208T-I/PT)
- 500+ KB total Flash for safety + application code (vs DSPIC33CH128MP508-I/PT)
Design Notes
Estimated: At continuous 100 MIPS operation on both cores with VDD=3.3V, total power dissipation reaches ~250 mW. With the 80-pin TQFP thermal resistance theta_JA of approximately 50 C/W on a 2-layer JEDEC test board, junction-to-ambient rise is about 12.5 C. For enclosed motor-drive enclosures with limited airflow, route a 1 oz copper thermal pad under the exposed die-attached paddle (if present) and consider increasing copper area on top and bottom layers. At 85 C ambient maximum, the junction stays within the 150 C rating, but derate by 20% for industrial-grade reliability above 70 C ambient.
Place 100 nF decoupling capacitors as close as possible to every VDD/AVDD pin pair, with 10 uF bulk capacitors on the main VDD rail within 10 mm of the package. Separate analog (AVDD) and digital (DVDD) power planes must join at a single point near the IC to prevent digital switching noise from coupling into ADC references. The high-resolution PWM traces should be routed away from ADC analog inputs and use ground guards to minimize capacitive coupling. Place the 16 MHz external crystal within 5 mm of the OSC1/OSC2 pins with short, symmetric traces and a ground ring to reduce EMI susceptibility.
A common design pitfall is failing to assign both cores' peripheral ownership during initialization; without explicit Peripheral Assignment configuration bits, the slave core may attempt to drive a peripheral already owned by the master, causing bus faults. Also, the master core must explicitly launch the slave core after PRAM is loaded - leaving the slave in reset prevents mailbox interrupts from being serviced. Finally, the high-resolution PWM uses a phase-shift PLL that requires at least 2 ms lock time after power-up; initiating PWM outputs before lock completion produces frequency-drift glitches on the power stage.
The dual-core architecture draws additional quiescent current during deep sleep compared to single-core dsPIC33 devices; budget 30 mA peak inrush on the 3.3V LDO during cold-start wake. For battery-backed designs, use a low-Iq LDO (such as MCP1700) for the always-on domain so the main regulator can be shut down while the DSC retains RTC operation. The ADC reference voltage input requires a 10 uF tantalum plus 100 nF ceramic bypass directly at the AVREF pin to achieve the datasheet's 3.5 MSPS linearity specification.
Compliance Information
RoHS and REACH compliant per Microchip product page and DigiKey/Mouser listings. The industrial -40C to +85C variant (I/PT) is not AEC-Q100 qualified; AEC-Q100 grade 0/1 versions are available separately under different ordering codes. The -E/PT extended temperature variant (-40C to +125C) is also offered. Functional Safety documentation per IEC 61508 / ISO 26262 is provided by Microchip to support customer-side ASIL-B certification.
