DSPIC33CK512MP308-I/PT - 100MIPS DSC, 512KB Flash, CAN FD | Microchip
MPN: DSPIC33CK512MP308-I/PT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $7.2 | $7.20 |
| 10 | $6.55 | $65.50 |
| 100 | $5.9 | $590.00 |
| 500 | $5.4 | $2,700.00 |
| 1,000 | $4.95 | $4,950.00 |
DSPIC33CK512MP308-I/PT Overview
A digital signal controller combines the deterministic control of a microcontroller with the mathematical throughput of a DSP engine. In the power-management hierarchy of embedded systems, DSCs sit between general-purpose MCUs and dedicated DSPs, making them the preferred choice for closed-loop control loops running at tens to hundreds of kilohertz, such as field-oriented motor control and digital power conversion.
Key differentiating features include the single 100 MHz dsPIC33C DSC core with DSP instruction extensions, a 24-channel 12-bit SAR ADC, six 12-bit DAC outputs, CAN Flexible Data-Rate (CAN FD) messaging, high-resolution PWM peripherals, and integrated operational amplifiers that offload external analog signal conditioning. These peripherals enable single-chip implementation of current-sense amplification, analog feedback, and gate-drive timing.
Architecturally, the dual-panel flash allows execution from one panel while erasing or programming the other, supporting live firmware updates. The 3V to 3.6V operating window, -40C to +125C industrial temperature range, and up to 69 general-purpose I/O pins suit demanding industrial environments.
Typical applications include precision PMSM and BLDC motor control, digital power supplies and PFC stages, solar inverters, and automotive-adjacent industrial CAN FD nodes.
A key design consideration: the part requires a 3.0-3.6V supply and all VDD/VSS pairs must be decoupled; flash programming via ICSP must use matched PGECx/PGEDx pin pairs.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
Drop-in alternatives for DSPIC33CK512MP308-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 DSPIC33CK512MP308-I/PT (same form factor and footprint) — differing in Package, Operating Temperature, Core, Operating Voltage, PWM.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33CK512MP308-E/PT
✅ Drop-In✓ In Stock
$3.85 / Unit
View Datasheet →DSPIC33CK512MP305-I/PT
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$4.36 / Unit
View Datasheet →DSPIC33CK256MP508-I/PT
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$3.95 / Unit
View Datasheet →DSPIC33CK128MP508-I/PT
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33CH512MP508-I/PT
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$4.95 / Unit
View Datasheet →DSPIC33CK512MP308-I/PT Maximum Ratings & Electrical Characteristics
| Core | dsPIC33C 16-bit DSC |
| Maximum Speed | 100 MIPS (100 MHz) |
| Program Memory (Flash) | 512KB (512K x 8), dual panel |
| RAM | 64KB (64K x 8) |
| Operating Voltage | 3 V to 3.6 V |
| Operating Temperature | -40C to +125C |
| ADC | 24-channel, 12-bit SAR |
| DAC | 6-channel, 12-bit |
| Integrated Op Amps | Yes |
| Communication Interfaces | CAN FD, UART, SPI, I2C |
| PWM | High-resolution PWM |
| I/O Pins | 69 |
| Package | 80-TQFP (12x12 mm) |
| Mounting Type | Surface Mount |
| Temperature Grade Indicator | I (Industrial) |
| Packaging Indicator | PT (Tray) |
| Programming Interface | ICSP via PGECx/PGEDx pairs |
DSPIC33CK512MP308-I/PT 80-tqfp (12x12 mm) Pin Configuration Guide
Pin configuration for DSPIC33CK512MP308-I/PT (80-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 DSPIC33CK512MP308-I/PT.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33CK512MP308-I/PT is suitable for 6 applications: Precision Motor Control (FOC), Digital Power Conversion, CAN FD Industrial Networking Nodes, Solar Inverters and Energy Systems, Battery Management Systems, Test, Measurement and Instrumentation.
Precision Motor Control (FOC)
The DSPIC33CK512MP308-I/PT fits field-oriented control of PMSM and BLDC motors because Microchip explicitly targets the dsPIC33CK family at high-performance precision motor control. The 100 MIPS core executes current-loop PI and Park/Clarke transforms fast enough for 20-100 kHz PWM switching frequencies, while the 24-channel 12-bit SAR ADC samples multiple shunt currents with precise trigger timing. Integrated op amps amplify low-level shunt signals on-chip, reducing BOM cost. In use, the ADC is triggered by the PWM module at the center of the counter period for ripple-free current sampling; the high-resolution PWM provides sub-nanosecond edge placement that reduces current ripple and audible noise. The trade-off versus analog controllers is firmware complexity, offset by Microchip's Motor Control Library and MCLV/MCHV reference boards.
Recommended
Digital Power Conversion
The DSPIC33CK512MP308-I/PT is well suited to digital power supplies, PFC stages, and LLC converters because its 100 MIPS core closes voltage and current loops at switching frequencies where analog controllers traditionally dominated. The high-resolution PWM generates phase-shifted, frequency-dithered gate waveforms needed by ZVS topologies, and the 12-bit ADC with multiple simultaneous channels reads output voltage, input current, and temperature in a single cycle. The 512KB dual-panel flash supports firmware updates in the field without interrupting power delivery - valuable in always-on server and telecom rectifiers. Placed as the sole supervisor of a 3-3.6V-scaled feedback chain, the controller implements peak current mode or voltage mode control in software; the consideration is worst-case loop latency, which should be verified against the target bandwidth during design.
Recommended
CAN FD Industrial Networking Nodes
The DSPIC33CK512MP308-I/PT serves as a CAN FD-capable control node in industrial automation, battery management, and heavier vehicle-adjacent systems. The integrated CAN Flexible Data-Rate peripheral supports 64-byte payloads and faster arbitration-plus-data phases than classical CAN, letting one controller both close real-time control loops and participate on the network without a separate communication processor. The -40C to +125C industrial rating and 3.0-3.6V operation align with 24V industrial rails scaled through a DC-DC stage. In deployment, the controller runs the application task set while CAN FD interrupts are serviced in hardware FIFOs; the 64KB RAM buffers message histories and diagnostic logs. The 512KB flash accommodates protocol stacks (J1939-class, CANopen-class) plus application code with headroom for OTA updates.
Recommended
Solar Inverters and Energy Systems
The DSPIC33CK512MP308-I/PT suits single-phase string inverter and MPPT controller designs because it combines DSP throughput for grid-synchronized sine generation, multiple 12-bit ADC channels for PV voltage/current and grid sensing, and high-resolution PWM for the power stage. The 100 MIPS core implements MPPT algorithms (perturb-and-observe or incremental conductance) plus grid-current control concurrently, with dual-panel flash enabling field firmware updates for changing grid codes. The six 12-bit DACs provide reference and test outputs for auxiliary loops. Designers should budget CPU load carefully: MPPT updates at tens of hertz coexist easily with a 20-50 kHz control ISR, but anti-islanding and protection routines must be cycle-counted. The industrial temperature rating covers outdoor enclosure environments when paired with appropriate thermal design.
Recommended
Battery Management Systems
The DSPIC33CK512MP308-I/PT fits battery management for e-mobility, warehouse robotics, and industrial energy storage where its CAN FD interface, 24-channel ADC, and 125C-rated operation cover cell monitoring, pack current measurement, and charger communication in one controller. The integrated op amps condition shunt-based pack current signals, and the 12-bit ADC sequences through cell-voltage channels under timer control for deterministic sampling windows used in coulomb counting. The 512KB flash stores state-of-charge lookup tables, fault logs, and a full CAN FD stack (such as J1939-style messaging) with room for secure boot code. Design consideration: the ADC input structure requires source impedance below datasheet limits, so cell-tap resistor dividers should be buffered or RC-filtered per the analog front-end guidance in the family datasheet.
Recommended
Test, Measurement and Instrumentation
The DSPIC33CK512MP308-I/PT is a strong fit for embedded instrumentation: programmable power supplies, electronic loads, and sensor front-ends. Its 100 MIPS DSP engine performs digital filtering, RMS computation, and FFT-based analysis on the fly, while the six 12-bit DACs generate setpoints and stimulus waveforms and the 24-channel ADC digitizes multi-point measurements simultaneously. The 69 I/O pins drive relays, range-switching analog front ends, and communication LEDs without external expanders, and UART/SPI/I2C links modules and displays. The dual-panel flash supports feature upgrades and calibration-table updates in the field. A practical design note is that DSP MAC operations with the hardware multiplier dramatically outperform generic 16-bit MCU filtering for the same clock rate - one reason DSCs like this part displace general MCUs in measurement products.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33CK512MP308-I/PT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33CK512MP308-E/PT | DSPIC33CK512MP305-I/PT | DSPIC33CK256MP508-I/PT | DSPIC33CK128MP508-I/PT | DSPIC33CH512MP508-I/PT |
|---|---|---|---|---|---|---|
| Package | 80-TQFP (12x12 mm) | 80-TQFP (12x12 mm) - same | 80-TQFP (12x12 mm) - same | 80-TQFP (12x12 mm) - same | 80-TQFP (12x12 mm) - same | 80-TQFP (12x12 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Memory (Flash) | 512KB dual panel | 512KB dual panel | 512KB dual panel | 256KB dual panel | 128KB dual panel | 512KB dual panel (dual core) |
| Maximum Speed | 100 MIPS | 100 MIPS | 100 MIPS | 100 MIPS | 100 MIPS | 100 MIPS (x2 cores) |
| Core Architecture | Single dsPIC33C DSC | Single dsPIC33C DSC | Single dsPIC33C DSC | Single dsPIC33C DSC | Single dsPIC33C DSC | Dual core (master + slave) |
| Temperature Range | -40C to +125C (I grade) | -40C to +150C-class (E grade, extended) | -40C to +125C (I grade) | -40C to +125C (I grade) | -40C to +125C (I grade) | -40C to +125C (I grade) |
Key Differentiators
- Extended temperature option in identical footprint (vs DSPIC33CK512MP308-E/PT)
- Integrated op amps reduce BOM (vs DSPIC33CK512MP305-I/PT)
- Single-core deterministic execution vs dual core (vs DSPIC33CH512MP508-I/PT)
Design Notes
The device operates strictly from 3.0 V to 3.6 V per the family operating conditions - do not feed 5 V logic rails to any VDD pin. Decouple every VDD/VSS pair with 100 nF ceramics placed within 2 mm of the pins, plus one bulk 4.7-10 uF capacitor. All VDD and VSS pins must be connected even if unused, per Microchip power connection requirements; floating power pins cause erratic flash behavior and unstable ADC references.
ICSP programming and debugging require matched PGECx/PGEDx pin pairs: ICSPCLK and ICSPDAT must come from the same pair number (e.g. PGEC2 with PGED2), as documented in Northern Software's dsPIC33CK512MP308 support notes. Mixing pairs from different numbers prevents device detection in MPLAB X / IPE. Also reserve the pair and its series resistors on the PCB even in production builds to keep field firmware updates possible.
For motor-control or digital-power layouts, keep the ADC input traces (current shunt sense, voltage dividers) short and away from PWM gate-drive traces; route the analog reference (AVDD/AVSS) as a star branch from the main 3.3 V rail with a dedicated ferrite or RC filter. Place the high-resolution PWM outputs' gate-driver loop area minimal to limit dv/dt coupling into the SAR ADC sampling network. The 12x12 mm TQFP exposes a center thermal pad-free underside, so 2 oz copper pours on adjacent layers help conduction at high MIPS load.
Compliance Information
Lead-free/solder-reflow-compatible per standard Microchip -I/PT commercial offering; RoHS and REACH statements should be confirmed via Microchip's product page environmental documents as they were not present in the retrieved web data.
