DSPIC33CH512MP505T-I/PT - 100MHz Dual-Core DSC, 512KB Flash | Microchip
MPN: DSPIC33CH512MP505T-I/PT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $7.12 | $7.12 |
| 10 | $6.41 | $64.10 |
| 100 | $5.32 | $532.00 |
| 500 | $4.58 | $2,290.00 |
| 1,000 | $3.95 | $3,950.00 |
| 3,000 | $3.81 | $11,430.00 |
DSPIC33CH512MP505T-I/PT Overview
A Digital Signal Controller (DSC) is a hybrid class of microcontroller that combines the deterministic interrupt response and peripheral set of a traditional MCU with the high-throughput math capabilities of a DSP. In the broader taxonomy, this device sits between a microcontroller (MCU) and a digital signal processor (DSP), specialized for closed-loop control loops running at high PWM frequencies with concurrent sensor sampling. The dsPIC33CH family specifically introduces a dual-core architecture, allowing designers to partition software between a master application core and a slave core dedicated to time-critical control loops.
Key differentiating specifications include the dual 16-bit dsPIC cores capable of 100 MIPS each, 512 KB of on-chip Flash split between the cores, 48 KB SRAM plus a dedicated 16 KB slave-core RAM, integrated CAN-FD peripheral, a high-resolution PWM module suited for field-oriented control (FOC) of PMSM and BLDC motors, and a wide 3.0V to 3.6V supply range with -40C to +85C industrial temperature grade.
Architecturally, the dsPIC33CH uses separate program and data buses per core, deterministic interrupt latency, and tightly coupled peripherals shared across cores. The slave core can execute dedicated control tasks (such as a digital power conversion loop or motor commutation) independently of the master, offloading jitter-sensitive code and enabling deterministic cycle times without software priority inversion.
Typical applications include sensorless field-oriented control (FOC) of BLDC/PMSM motors, digital switch-mode power supplies (SMPS) and totem-pole PFC stages, photovoltaic inverters, automotive body and chassis controllers, and industrial drives requiring concurrent communication and high-frequency PWM. The integrated CAN-FD also makes it attractive for vehicle and industrial networking nodes.
When designing with this device, allocate the slave core to the most time-critical control loop and reserve the master for application state machines, communication stacks, and housekeeping. Ensure the decoupling network follows the manufacturer's reference layout: at minimum a 100 nF X7R ceramic per VDD pin plus a bulk 4.7 uF to 10 uF near the package.
This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes drawn from Microchip's dsPIC33CH documentation that are not collated in the manufacturer datasheet itself.
Drop-in alternatives for DSPIC33CH512MP505T-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 DSPIC33CH512MP505T-I/PT (same form factor and footprint) — differing in Package, Core Architecture, Operating Temperature, MSL Level, High-Resolution PWM.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33CH512MP505T-I/M4
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$5.71 / Unit
View Datasheet →DSPIC33CH512MP505T-E/PT
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33CH512MP508T-I/PT
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$4.22 / Unit
View Datasheet →DSPIC33CH512MP208T-I/PT
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$6.9 / Unit
View Datasheet →DSPIC33CH256MP506T-I/PT
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$5.7 / Unit
View Datasheet →DSPIC33CH256MP508-I/PT
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$5.84 / Unit
View Datasheet →DSPIC33CH512MP505T-I/PT Maximum Ratings & Electrical Characteristics
| Core Architecture | Dual 16-bit dsPIC33C DSC cores (master + slave) |
| Maximum CPU Speed | 100 MIPS per core |
| Program Memory (Flash) | 512 KB |
| Data SRAM | 48 KB (master) + 16 KB (slave) |
| Supply Voltage | 3.0 V to 3.6 V |
| Operating Temperature | -40 C to +85 C (industrial) |
| Package | 48-pin TQFP (7x7 mm) |
| Mounting Type | Surface Mount |
| Communication | CAN-FD |
| PWM Modules | High-resolution PWM suitable for FOC motor control |
| DSP Engine | 16-bit DSP instructions, MAC, barrel shifter |
| MSL Level | MSL3 (per JEDEC J-STD-020, typical for TQFP-48) |
| RoHS Status | Compliant |
| Lead-Free | Yes |
DSPIC33CH512MP505T-I/PT 48-pin tqfp (7x7 mm) Pin Configuration Guide
Pin configuration for DSPIC33CH512MP505T-I/PT (48-pin tqfp (7x7 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 DSPIC33CH512MP505T-I/PT.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33CH512MP505T-I/PT is suitable for 7 applications: Sensorless FOC Motor Control (BLDC/PMSM), Digital Switch-Mode Power Supply (SMPS) and Totem-Pole PFC, Photovoltaic Inverter and Solar Power Optimizer, Industrial Servo Drive and Robotics, Automotive Body and Chassis ECU, Industrial Sensor Hub with Edge Filtering, High-Density Digital LED Lighting Driver.
Sensorless FOC Motor Control (BLDC/PMSM)
The DSPIC33CH512MP505T-I/PT is engineered for high-performance sensorless field-oriented control of 3-phase BLDC and PMSM motors. Its dual 100 MIPS dsPIC33C cores let the slave core run the deterministic current/torque loop while the master handles state machine, communication, and housekeeping, eliminating software priority inversion. The 512 KB Flash and 48 KB + 16 KB split RAM comfortably host FOC observer libraries plus application code. Integrated CAN-FD enables direct connection to vehicle or industrial Fieldbus. Reference designs from Microchip, such as the dsPIC33CH motor-control starter kit, demonstrate sensorless FOC of a 24 V BLDC at >20 kHz PWM with this exact part.
Recommended
Digital Switch-Mode Power Supply (SMPS) and Totem-Pole PFC
The DSPIC33CH512MP505T-I/PT fits digital-controlled SMPS and bridgeless totem-pole PFC stages where the control loop must execute in microseconds. Its high-resolution PWM module drives GaN or SiC switches at >100 kHz with sub-percent duty-cycle resolution, and the slave core offloads the critical voltage/current loop from the master core's communication and housekeeping tasks. The 512 KB Flash accommodates complex digital-compensation firmware and adaptive control algorithms. CAN-FD allows telemetry reporting to a system supervisor over a single twisted pair. Microchip's digital-power reference designs are directly portable to this device.
Recommended
Photovoltaic Inverter and Solar Power Optimizer
Photovoltaic inverters and module-level optimizers require real-time MPPT tracking and grid-synchronization control running concurrently with safety monitoring. The DSPIC33CH512MP505T-I/PT's dual-core architecture lets the slave core execute the MPPT loop every 10 ms while the master runs anti-islanding, grid-sync PLL, and Modbus/CAN-FD communication. The wide 3.0-3.6 V supply tolerates noisy PV-array-derived rails, and the industrial -40C to +85C temperature grade handles outdoor inverter enclosures. With 512 KB Flash, designers can embed both firmware and lookup tables for grid-code parameter sets across regions.
Recommended
Industrial Servo Drive and Robotics
The DSPIC33CH512MP505T-I/PT is a strong fit for multi-axis servo drives and robotic joint controllers that demand deterministic cycle times below 10 us. Each slave core can be assigned to a single axis current loop, while the master synchronizes multiple axes and runs the EtherCAT/CAN-FD stack. The 48-pin TQFP (7x7 mm) package is large enough to route high-speed signals but compact enough for dense multi-axis PCB layouts. The 512 KB Flash and 48+16 KB RAM accommodate S-curve trajectory planners plus DSP-based vibration-suppression filters.
Recommended
Automotive Body and Chassis ECU
The DSPIC33CH512MP505T-I/PT's integrated CAN-FD peripheral and dual-core determinism make it suitable for automotive body and chassis ECUs controlling seat adjustment, HVAC flaps, or active suspension valves. The slave core handles the time-critical valve/actuator PWM while the master runs the CAN-FD diagnostics, fault-handling, and bootloader. The 48-pin TQFP package and 3.0-3.6 V supply align with 12 V automotive rail-derived power trees. Designers targeting AEC-Q100 should note that the -I/PT variant is industrial grade -40C to +85C, while the -E/PT covers -40C to +125C.
Recommended
Industrial Sensor Hub with Edge Filtering
Industrial 4.0 sensor hubs require concurrent high-speed ADC sampling, DSP-based filtering (FFT, FIR, decimation), and CAN-FD/Ethernet uplink. The DSPIC33CH512MP505T-I/PT's slave core can sample and run a 1024-point FFT every millisecond without main-core jitter, while the master aggregates results and pushes them to the cloud gateway. The 48 KB master RAM plus 16 KB slave RAM is sufficient for double-buffered FFT working sets. The 512 KB Flash embeds both the DSP filter library and the secure OTA bootloader.
Recommended
High-Density Digital LED Lighting Driver
Architectural and horticultural LED lighting drivers benefit from the DSPIC33CH512MP505T-I/PT's high-resolution PWM and dual-core determinism. The slave core executes per-channel dimming and color-mixing loops with sub-microsecond precision, while the master runs DALI-2, DMX, or CAN-FD lighting protocols. With 512 KB Flash, firmware can hold multiple lighting profiles, gamma tables, and sunrise/sunset simulation routines. The industrial temperature grade suits indoor fixtures with sealed drivers.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33CH512MP505T-I/PT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33CH512MP505T-I/M4 | DSPIC33CH512MP505T-E/PT | DSPIC33CH512MP508T-I/PT | DSPIC33CH512MP208T-I/PT | DSPIC33CH256MP506T-I/PT | DSPIC33CH256MP508-I/PT |
|---|---|---|---|---|---|---|---|
| Package | 48-pin TQFP (7x7 mm) | 48-pin QFN variant - same die | 48-pin TQFP (7x7 mm) - same | 48-pin TQFP (7x7 mm) - same | 48-pin TQFP (7x7 mm) - same | 48-pin TQFP (7x7 mm) - same | 48-pin TQFP (7x7 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core Architecture | Dual 16-bit dsPIC33C, 100 MIPS each | Dual 16-bit dsPIC33C, 100 MIPS each (same die) | Dual 16-bit dsPIC33C, 100 MIPS each | Dual 16-bit dsPIC33C, 100 MIPS each | Dual 16-bit dsPIC33C, 100 MIPS each | Dual 16-bit dsPIC33C, 100 MIPS each | Dual 16-bit dsPIC33C, 100 MIPS each |
| Program Flash | 512 KB | 512 KB (same) | 512 KB (same) | 512 KB (same family) | 512 KB (same family) | 256 KB (-50%) | 256 KB (-50%) |
| RAM (Master + Slave) | 48 KB + 16 KB | 48 KB + 16 KB (same) | 48 KB + 16 KB (same) | 48 KB + 16 KB | 48 KB + 16 KB (same) | 48 KB + 16 KB | |
| CAN Peripheral | CAN-FD | CAN-FD (same) | CAN-FD (same) | CAN-FD | CAN-FD | Classical CAN (downgrade) | Classical CAN (downgrade) |
| Operating Temperature | -40 C to +85 C (industrial) | -40 C to +85 C (same) | -40 C to +125 C (extended) | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C |
Key Differentiators
- Dual-core 100 MIPS architecture with independent slave-core RAM (vs Single-core DSPIC33EP512GM604-I/PT (100 MIPS, no slave core))
- 512 KB Flash with split 48+16 KB RAM (vs DSPIC33CH256MP506T-I/PT (256 KB Flash, 48+16 KB RAM, classical CAN))
- Industrial -40C to +85C grade standard with -40C to +125C extended option (vs DSPIC33CH512MP505T-I/PT (industrial) vs DSPIC33CH512MP505T-E/PT (extended))
Design Notes
Per the dsPIC33CH family datasheet, place at minimum one 100 nF X7R ceramic decoupling capacitor on each VDD/AVDD pin pair, located within 2-3 mm of the pin. Add a shared bulk 4.7 uF to 10 uF ceramic near the package. For motor-drive applications where the 3.3 V rail is derived from a switching pre-regulator, place an LC pi-filter (10 uH + 2x 10 uF) between the pre-regulator and the DSC to suppress injected switching noise that would otherwise couple into the ADC reference. Estimated: with 100 mA total VDD current at 3.3 V, a 10 uF bulk holds the rail within 5% during a 10 us transient.
The 48-pin TQFP (7x7 mm) package should be routed on a 4-layer PCB with a continuous ground plane on layer 2 directly beneath the DSC. Route the 100 MHz main oscillator traces (OSCI/OSCO) over an unbroken ground pour and keep them under 10 mm length to avoid EMI and clock-jitter issues. The CAN-FD transceiver output traces should be length-matched within 5 mm and routed with 100 ohm differential impedance if using a twisted-pair cable.
Do not assume the master and slave cores can share any peripheral without configuring the PPS (Peripheral Pin Select) multiplexer - many peripherals on the dsPIC33CH family are core-assignable. Mismanaging the slave-core interrupt vector table is a common cause of hard-fault on first power-up; always generate the slave project from the MPLAB Harmony Configurator and load the slave image via the master core's boot sequence. Also, the 3.0 V minimum supply voltage is a hard spec - operating below 3.0 V risks Flash read disturb and ADC linearity degradation.
Estimated: at 100 MIPS each core drawing approximately 30 mA from 3.3 V, total package dissipation is roughly 200 mW. The 48-pin TQFP has theta_JA around 60 C/W on a 4-layer JEDEC test PCB, yielding a junction rise of ~12 C above ambient - well within the industrial -40C to +85C envelope. No external heatsink is required for typical motor-control or digital-power designs.
Compliance Information
RoHS and lead-free compliance per Master Electronics listing and Microchip product page. AEC-Q100 is not applicable for the -I/PT industrial grade; the -E/PT extended grade is also not formally AEC-Q100 qualified per the verified distributor data - consult Microchip automotive-grade part numbers if AEC-Q100 is mandatory.
