DSPIC33CK32MP205-E/M4 - 100MHz 16-bit DSC 32KB Flash | Microchip
MPN: DSPIC33CK32MP205-E/M4 ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $2.75 | $2.75 |
| 10 | $2.55 | $25.50 |
| 100 | $2.32 | $232.00 |
| 500 | $2.18 | $1,090.00 |
| 1,000 | $2.05 | $2,050.00 |
DSPIC33CK32MP205-E/M4 Overview
A digital signal controller combines the deterministic interrupt latency and peripheral set of a microcontroller with the math capability of a DSP. Within the power-management hierarchy, the DSC sits above a general-purpose MCU and below a multi-core DSP SoC: it executes control loops such as Field-Oriented Control (FOC), power-factor correction and digital power conversion in a single chip. The dsPIC33CK family is Microchip's single-core 100 MIPS generation of these controllers.
Key features of the MP205 variant include a high-resolution PWM module for sub-nanosecond PWM edge control, a CAN Flexible Data (CAN FD) interface, three integrated operational amplifiers and three analog comparators that offload signal conditioning from external components, and a Programmable Trigger Generator (PTG) for autonomous peripheral sequencing. The -E temperature suffix guarantees operation from -40C to +125C.
Architecturally, the dsPIC33CK core uses an enhanced Harvard pipeline with DSP multiply-accumulate instructions, allowing single-cycle MAC operations at 100 MHz. Integrated op-amps feed on-chip ADC inputs directly, shortening the analog front-end path in current-sense loops used by motor control firmware.
Typical applications include brushless DC and PMSM motor control, automotive auxiliary systems requiring CAN FD and AEC-Q100 parts, digital power supplies such as totem-pole PFC and LLC converters, and advanced sensing nodes.
Design consideration: at 100 MHz with high-resolution PWM, layout quality of the decoupling network and analog ground return path materially affects ADC accuracy; place 100 nF ceramics directly at each supply pin pair.
This page synthesizes distributor pricing, drop-in same-family alternatives, and practical design notes not consolidated in the manufacturer datasheet.
Drop-in alternatives for DSPIC33CK32MP205-E/M4 — 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 DSPIC33CK32MP205-E/M4 (same form factor and footprint) — differing in Package, Data SRAM, Operating Temperature, Qualification, CAN Interface.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33CK32MP205-I/M4
✅ Drop-In✓ In Stock
$2.39 / Unit
View Datasheet →DSPIC33CK32MP205T-E/M4
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33CK32MC105-E/M4
✅ Drop-In✓ In Stock
$3.2 / Unit
View Datasheet →DSPIC33CK256MP205-E/M4
✅ Drop-In✓ In Stock
$1.87 / Unit
View Datasheet →DSPIC33CK128MP205-E/PT
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$3.61 / Unit
View Datasheet →DSPIC33CK32MP205-E/M4 Maximum Ratings & Electrical Characteristics
| Core Architecture | 16-bit dsPIC33CK DSC |
| Maximum CPU Frequency | 100 MHz (100 MIPS) |
| Flash Memory | 32 KB |
| SRAM | 8 KB |
| Supply Voltage | 3.3 V |
| Package | 48-UQFN (6x6 mm) with exposed pad |
| Operating Temperature | -40C to +125C (E grade) |
| Automotive Qualification | AEC-Q100 qualified |
| CAN Interface | CAN FD |
| Integrated Op-Amps | 3 |
| Integrated Comparators | 3 |
| PWM Module | High-Resolution PWM |
| Analog-to-Digital Converter | 12-bit ADC |
| Programmable Trigger Generator | Yes (PTG) |
| Functional Safety Support | FuSa (functional safety) variant available |
| Mounting Type | Surface Mount |
| Packaging | Tube |
DSPIC33CK32MP205-E/M4 48-uqfn (6x6 mm) with exposed pad Pin Configuration Guide
Pin configuration for DSPIC33CK32MP205-E/M4 (48-uqfn (6x6 mm) with 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 DSPIC33CK32MP205-E/M4.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33CK32MP205-E/M4 is suitable for 6 applications: BLDC/PMSM Motor Control (FOC), Automotive Auxiliary Control Nodes, Digital Power Supplies (PFC, LLC), Advanced Sensing and Signal Conditioning, Robotics and Automation Drives, Functional Safety Embedded Control.
BLDC/PMSM Motor Control (FOC)
The DSPIC33CK32MP205-E/M4 fits Field-Oriented Control of brushless DC and permanent-magnet synchronous motors because its 100 MHz DSP core executes single-cycle MAC instructions while three on-chip op-amps amplify shunt current signals directly into the 12-bit ADC, eliminating external amplifier ICs. The high-resolution PWM module provides fine duty and phase adjustment required for sinusoidal current shaping at switching frequencies of 50-100 kHz. Firmware runs the current loop at 10-20 kHz with deterministic latency thanks to the DSC's interrupt architecture. The integrated comparators support hardware overcurrent trips without CPU intervention, protecting power stages within microseconds. In a typical design the controller gates a three-phase inverter through gate drivers while sampling two phase currents; the -E grade permits operation near heat-generating motor drivers up to +125C ambient.
Recommended
Automotive Auxiliary Control Nodes
Automotive subsystems such as pumps, fans, actuators and lighting controllers require AEC-Q100 silicon and robust in-vehicle networking, and the DSPIC33CK32MP205-E/M4 satisfies both: it is AEC-Q100 qualified and integrates a CAN Flexible Data (CAN FD) controller for data phases well beyond classical CAN rates. Its 100 MHz core runs local closed-loop control while the CAN FD peripheral handles diagnostics and command traffic on the vehicle bus. The -E temperature rating of -40C to +125C covers under-hood-adjacent zones, and functional safety (FuSa) family variants support safety-relevant functions. The three integrated op-amps and comparators condition position or current feedback without extra BOM cost. A typical node uses the high-resolution PWM to drive an actuator stage and the 12-bit ADC for feedback sampling at rates synchronized by the PTG, keeping the CPU free for protocol handling.
Recommended
Digital Power Supplies (PFC, LLC)
Totem-pole PFC and LLC converter control demand precise, phase-aligned PWM at 65-500 kHz switching frequencies, which the high-resolution PWM of the DSPIC33CK32MP205-E/M4 delivers with sub-nanosecond edge resolution. The 100 MHz DSP core computes voltage and current loop compensators at up to 100 kHz update rates using DSP MAC instructions, while the three comparators implement cycle-by-cycle overcurrent limiting in hardware for fast fault response. The 12-bit ADC samples input/output voltages and inductor currents, optionally triggered autonomously by the PTG so sampling jitter stays minimal. Because the M4 variant integrates all control elements on one 3.3 V chip, designers save the external amplifier and comparator stages typical of analog-control designs. The -E grade tolerates power-supply enclosure temperatures up to +125C, and AEC-Q100 qualification opens server and telecom supply designs to automotive-adjacent platforms.
Recommended
Advanced Sensing and Signal Conditioning
Sensor front-ends benefit from the DSPIC33CK32MP205-E/M4 because the three on-chip operational amplifiers can be configured as gain stages, buffers or difference amplifiers feeding the 12-bit ADC, and the three comparators provide fast threshold detection without external parts. This integration shortens the analog signal path, reduces noise pickup and lowers BOM count in industrial sensors, pressure and flow transmitters and bridge-sensor measurement nodes. The 100 MHz DSP core applies filtering, linearization and FFT-based analysis in firmware, offloading host processors. The PTG sequences ADC conversions and PWM-triggered stimulation automatically, useful in active sensor excitation schemes. With 8 KB of RAM and 32 KB of Flash, compact sensing applications fit without external memory; if additional data logging is required, the pin-compatible DSPIC33CK256MP205-E/M4 provides eight times the Flash on the same 48-UQFN footprint.
Recommended
Robotics and Automation Drives
Factory automation and robotics subsystems combine motor control with fieldbus communication, and the DSPIC33CK32MP205-E/M4 addresses both on one chip: the 100 MHz core runs multi-axis FOC or stepper control loops while CAN FD links the node to a PLC or higher-level controller. The high-resolution PWM enables smooth low-speed torque via fine current chopper control, and the integrated op-amps sense motor currents directly. Deterministic interrupt behavior of the dsPIC33CK core supports tight loop timing for coordinated motion, and the comparators give hardware-level protection against stall overcurrent events. Because the part is AEC-Q100 qualified with a -40C to +125C rating, it also survives the thermally demanding cabinets typical of industrial environments. Multi-instance deployments benefit from Microchip's common dsPIC33C toolchain and code compatibility across the family, shortening firmware reuse across product lines.
Recommended
Functional Safety Embedded Control
Safety-relevant functions such as safe torque off, safe speed monitoring and redundant sensing need controllers with documented diagnostics, and Microchip offers the dsPIC33CK family with Functional Safety (FuSa) support, of which the DSPIC33CK32MP205-E/M4 is a member per DigiKey's classification. The part's built-in comparators enable independent hardware monitoring of safety-critical analog signals, providing a second, CPU-independent protection layer. The 100 MHz core executes diagnostic software routines alongside the primary control loop, with 32 KB Flash accommodating compact safety firmware and 8 KB RAM supporting double-buffered sensor data. AEC-Q100 qualification and the -40C to +125C range suit harsh installations. Designers should follow Microchip's functional safety collateral and validation packages when architecting systems toward safety standards, pairing the DSC with external monitoring for higher-integrity levels.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33CK32MP205-E/M4 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33CK32MP205-I/M4 | DSPIC33CK32MP205T-E/M4 | DSPIC33CK32MC105-E/M4 | DSPIC33CK256MP205-E/M4 |
|---|---|---|---|---|---|
| Package | 48-UQFN (6x6 mm) EP | 48-UQFN (6x6 mm) - same | 48-UQFN (6x6 mm) - same | 48-UQFN (6x6 mm) - same | 48-UQFN (6x6 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| CPU Frequency | 100 MHz | 100 MHz | 100 MHz | 100 MHz | 100 MHz |
| Flash Memory | 32 KB | 32 KB | 32 KB | 32 KB | 256 KB |
| SRAM | 8 KB | 8 KB | 8 KB | 8 KB | 24 KB |
| Operating Temperature | -40C to +125C (E) | -40C to +85C (I) | -40C to +125C (E) | -40C to +125C (E) | -40C to +125C (E) |
| AEC-Q100 Qualification | Qualified | Not qualified (industrial grade) | Qualified | Qualified | Qualified |
Key Differentiators
- Extended temperature and AEC-Q100 qualification (vs DSPIC33CK32MP205-I/M4)
- Eight times the code space without PCB change (vs DSPIC33CK32MP205-E/M4 vs DSPIC33CK256MP205-E/M4)
- Integrated analog front end (vs DSPIC33CK32MC105-E/M4)
Design Notes
Place a 100 nF ceramic decoupling capacitor at each VDD pin pair and one at AVDD, within 2 mm of the pins, plus bulk 4.7-10 uF near the package. The exposed pad on the 48-UQFN must be soldered to a grounded copper array with thermal vias; it is both the main heat removal path and the analog ground reference. Keep the op-amp input routing away from high-resolution PWM output traces to prevent switching coupling into the ADC front end.
The device operates from a 3.3 V rail. Estimated: at 100 MHz with all peripherals active, typical core plus peripheral current is in the tens of milliamps range (verify against the datasheet electrical characteristics table for your peripheral configuration); budget the local LDO accordingly. Separate the analog 3.3 V feed with an RC or ferrite filter from the digital rail so ADC and op-amp accuracy is not degraded by digital switching noise.
Verify the exact 48-pin M4 package pinout in the Microchip family datasheet before finalizing the schematic - the dsPIC33CK family spans 28/36/48/64/80-pin variants with different pin multiplexing, and peripheral mapping (PWM, op-amp, comparator pins) must be confirmed per package. The -I and -E suffixes differ in temperature rating, so do not substitute -I stock into automotive builds requiring AEC-Q100 and +125C. Use the configurable logic and PPS features carefully, as remapped pins can silently break hardware fault paths.
Compliance Information
AEC-Q100 automotive qualification confirmed via distributor parametric data (datasheets.com, DigiKey). RoHS/REACH/lead-free status not stated in the provided web data and marked unknown - verify on Microchip's product page.
