DSPIC33CK32MP506T-I/MR - 100MHz 16-Bit DSC 32KB Flash | Microchip
MPN: DSPIC33CK32MP506T-I/MR ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $2.66 | $2.66 |
| 10 | $2.4 | $24.00 |
| 100 | $2.16 | $216.00 |
| 500 | $1.94 | $970.00 |
| 1,000 | $1.75 | $1,750.00 |
DSPIC33CK32MP506T-I/MR Overview
A digital signal controller combines the compute throughput of a DSP with the control peripherals and interrupt architecture of a microcontroller. In the embedded systems hierarchy, the dsPIC33CK family sits alongside 16-bit PIC microcontrollers under the microcontroller umbrella, purpose-built for closed-loop control loops executing at high loop rates - exactly what digital power conversion, motor control, and advanced sensing require.
Key features include the 100 MHz dsPIC33CK core executing from zero-wait-state Flash with DSP instructions (single-cycle MAC, dual operands, modulo and bit-reversed addressing), a High-Resolution PWM (HRPWM) engine for sub-nanosecond PWM edge resolution, and CAN FD for modern vehicle and industrial networking. The integrated 3 op-amps and 3 comparators offload analog signal conditioning, reducing external BOM cost in current-sense front ends.
Architecturally, the dsPIC33CK core is a modified Harvard 16-bit machine with an enhanced instruction set, multiple working registers, hardware loop support, and deterministic interrupt latency. The HRPWM peripheral plus fast ADC enables peak-current-mode power supplies and sensorless Field Oriented Control (FOC) motor drives executed at loop rates above 100 kHz.
Typical applications include digital power supplies (PFC, LLC, 48 V to 12 V brick converters as in the EPC9143 reference design), brushless DC and PMSM motor control (FOC), automotive and industrial CAN FD nodes, and LED lighting.
Design consideration: supply voltage is 3.0 V to 3.6 V; the -I temperature suffix guarantees -40C to +85C operation, and the exposed pad must be soldered to a grounded copper pour for thermal and signal-integrity reasons.
This page synthesizes distributor pricing, drop-in family alternatives, pinout guidance, and practical design notes not found on the manufacturer datasheet alone.
Drop-in alternatives for DSPIC33CK32MP506T-I/MR — 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 DSPIC33CK32MP506T-I/MR (same form factor and footprint) — differing in Operating Temperature, Package, Functional Safety Support, Program Memory (Flash), CPU Speed.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33CK32MP506T-E/MR
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33CK32MP506T-H/MR
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33CK32MP506-I/MR
✅ Drop-In✓ In Stock
$3.1 / Unit
View Datasheet →DSPIC33CK64MP506-I/MR
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$1.58 / Unit
View Datasheet →DSPIC33CK128MP506-I/MR
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$4.35 / Unit
View Datasheet →DSPIC33CK32MP506T-I/MR Maximum Ratings & Electrical Characteristics
| Core | dsPIC33CK 16-bit DSC |
| CPU Speed | 100 MHz |
| Program Memory (Flash) | 32 KB (32K x 8) |
| RAM | 8 KB |
| Supply Voltage | 3.0 V to 3.6 V |
| Package | 64-QFN (9x9 mm), exposed pad |
| Pin Count | 64 |
| On-chip Op-Amps | 3 |
| Comparators | 3 |
| CAN | CAN FD |
| PWM | High-Resolution PWM (HRPWM) |
| PTG Peripheral | Yes |
| Operating Temperature | -40C to +85C (I suffix) |
| Mounting Type | Surface Mount |
| Functional Safety Support | Yes (FuSa) |
| Packaging | Tape & Reel (T suffix) |
| RoHS Status | Compliant |
DSPIC33CK32MP506T-I/MR 64-qfn (9x9 mm), exposed pad Pin Configuration Guide
Pin configuration for DSPIC33CK32MP506T-I/MR (64-qfn (9x9 mm), exposed pad 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 DSPIC33CK32MP506T-I/MR.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33CK32MP506T-I/MR is suitable for 6 applications: Digital Power Conversion, Brushless Motor Control (FOC), Automotive CAN FD Nodes, Advanced Sensing and Signal Conditioning, LED Lighting and Dimming Control, Functionally Safe Embedded Control.
Digital Power Conversion
The DSPIC33CK32MP506T-I/MR fits digital power supplies because its 100 MHz DSP core executes voltage- and current-mode control loops well above 100 kHz, while the High-Resolution PWM engine delivers fine PWM edge resolution for peak-current-mode LLC and PFC stages. The 3 on-chip op-amps buffer current-shunt signals and the 3 comparators provide hardware overcurrent trips with microsecond response, eliminating external analog ICs. Microchip's EPC9143 48 V to 12 V eGaN brick reference design demonstrates the family in a real converter. Placed as the sole controller driving gate drivers through HRPWM outputs, the DSC replaces dedicated analog controllers and enables firmware-updatable loop tuning. The trade-off vs analog control is firmware development effort, offset by digital flexibility such as adaptive dead-time and soft-start profiles.
Recommended
Brushless Motor Control (FOC)
For BLDC and PMSM drives, the DSPIC33CK32MP506T-I/MR executes sensorless Field Oriented Control at loop rates exceeding 100 kHz thanks to its 100 MHz core with single-cycle MAC DSP instructions. The integrated 3 op-amps condition the three phase-current shunt signals directly, and the 3 comparators implement fast cycle-by-cycle overcurrent limiting in hardware, independent of firmware latency. HRPWM outputs drive the inverter gate stages with fine edge resolution that reduces current ripple and audible noise. The 64-pin package provides enough I/O for encoder/Hall interfaces plus CAN FD for inverter-to-vehicle communication. Performance consideration: keep the current-loop ISR under 10 microseconds - the 100 MHz core with hardware loop support makes this achievable while leaving headroom for speed and position observers.
Recommended
Automotive CAN FD Nodes
The DSPIC33CK32MP506T-I/MR suits automotive and industrial networking nodes via its integrated CAN Flexible Data (CAN FD) controller, which supports up to 8 Mbit/s data-phase bit rates required by modern vehicle and factory networks. The FuSa (Functional Safety) classification supports ISO 26262-oriented development flows, and the -E/-H temperature grades extend operation from -40C to +125C/+150C for under-hood placement. The 64-pin QFN provides ample I/O for driving sensors, LEDs, and actuators while the PTG peripheral offloads simple sequencing tasks from the CPU. In a body-control or pump-control node, the DSC handles CAN FD traffic, local closed-loop control, and diagnostics on one chip. Use proper ESD/TVS protection on the CAN transceiver lines and route the CAN pair differentially with 120-ohm termination.
Recommended
Advanced Sensing and Signal Conditioning
The DSPIC33CK32MP506T-I/MR integrates 3 operational amplifiers and 3 comparators directly on the analog front end, enabling single-chip sensor signal chains for pressure, current, and temperature sensing. Signals from bridge or shunt sensors can be amplified by the internal op-amps and sampled by the fast ADC without leaving the die, reducing noise pickup, BOM cost, and board area. The 100 MHz core applies digital filtering (IIR/FIR), calibration, and linearization in firmware, while the PTG peripheral sequences measurement cycles autonomously to minimize CPU wake-ups and power. This architecture is ideal for industrial transmitters and battery management sensing. Design consideration: filter AVDD with an LC network and allocate the dedicated analog ground pin to a quiet ground island to preserve ADC accuracy at 12-bit resolution.
Recommended
LED Lighting and Dimming Control
In high-power LED drivers, the DSPIC33CK32MP506T-I/MR generates dimming and constant-current regulation using its High-Resolution PWM outputs with fine duty-cycle resolution, eliminating visible flicker at low dimming levels that fixed-resolution PWM controllers exhibit. The on-chip comparators implement fast cycle-by-cycle current limiting for the LED string, and the 100 MHz core closes the feedback loop for average-current regulation. CAN FD connectivity allows multiple luminaires to join DALI-over-CAN or building automation networks, and the 64-pin package supports multi-string architectures with a single controller. PWM frequency and resolution trade-offs are handled in firmware, enabling smooth 16-bit-equivalent dimming curves. Thermal feedback from an on-chip or external temperature sensor can derate drive current automatically for LED junction protection.
Recommended
Functionally Safe Embedded Control
The DSPIC33CK32MP506T-I/MR is classified by Microchip as a Functional Safety (FuSa) capable DSC, making it appropriate for control systems targeting industrial safety standards where diagnostics, watchdog supervision, and documented development flows are required. The 100 MHz core runs the control application while built-in watchdogs, brown-out reset, and clock monitoring detect faults; the 3 comparators provide hardware-level protection channels independent of software. With 32 KB Flash, developers can implement both the application and safety routines with room for CRC self-tests of program memory. Typical uses include safety-interlocked motor drives, industrial automation controllers, and monitored power systems. Always consult Microchip's FuSa safety manual for the dsPIC33CK family and plan diagnostic coverage during architecture definition, not as a late retrofit.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33CK32MP506T-I/MR — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33CK32MP506T-E/MR | DSPIC33CK32MP506T-H/MR | DSPIC33CK64MP506-I/MR | DSPIC33CK128MP506-I/MR |
|---|---|---|---|---|---|
| Package | 64-QFN (9x9 mm) MR | 64-QFN (9x9) - same | 64-QFN (9x9) - same | 64-QFN (9x9) - same | 64-QFN (9x9) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| CPU Speed | 100 MHz | 100 MHz | 100 MHz | 100 MHz | 100 MHz |
| Flash Memory | 32 KB | 32 KB | 32 KB | 64 KB | 128 KB |
| Operating Temperature | -40C to +85C | -40C to +125C | -40C to +150C | -40C to +85C | -40C to +85C |
| CAN FD | Yes | Yes | Yes | Yes | Yes |
| On-chip Op-Amps | 3 | 3 | 3 | 3 | 3 |
Key Differentiators
- Lowest-cost 100 MHz family entry point (vs DSPIC33CK128MP506-I/MR)
- Identical die at three temperature grades (vs DSPIC33CK32MP506T-H/MR)
- Integrated analog reduces BOM (vs DSPIC33CK32MP506T-E/MR)
Design Notes
Supply the DSPIC33CK32MP506T-I/MR from a clean 3.3 V rail within the 3.0-3.6 V range. Place a 100 nF ceramic capacitor at every VDD pin as close to the package as possible, plus at least one 10 uF bulk capacitor per power domain. Keep AVDD on a separate LC-filtered rail (ferrite bead plus 10 uF and 100 nF) to protect ADC accuracy and op-amp CMRR from digital switching noise generated by the 100 MHz core.
The 64-QFN 9x9 exposed pad is the primary ground and thermal path - it is not optional. Design the land pattern per the manufacturer datasheet footprint with an array of thermal vias (typically 5x5, 0.3 mm drill) connecting the pad to internal ground planes. During reflow, follow the package MSL rating and profile; insufficient solder under the pad causes elevated junction temperature and unreliable ground returns for the HRPWM and analog peripherals.
On the tape-and-reel T-suffix part, do not assume the same firmware binary works unchanged when migrating within the dsPIC33CK family: Flash sizes differ (32/64/128 KB) so linker scripts and self-test address ranges must change, even though pin functions are identical between MP506 and MP506 Flash-upgrades. Also verify ICSP programming pins (PGD/PGC) are routed to a header and not repurposed in final hardware, or field reprogramming becomes impossible.
The 100 MHz core switching edges demand short, direct return paths. Route HRPWM outputs to gate drivers with series resistors (10-22 ohm) to control ringing, keep CAN FD H and L as a tightly coupled 100-ohm differential pair, and isolate analog sensor routing away from PWM traces. Place decoupling on the opposite side of the board directly beneath VDD pins to minimize loop inductance.
Compliance Information
RoHS compliant and lead-free per Microchip product listings on DigiKey/Mouser. AEC-Q100 qualification not explicitly stated in provided data for this MPN; the -E/-H grades offer extended temperature ranges. REACH, halogen-free, and conflict-minerals status: verify on Microchip's environmental page.
