DSPIC33CK32MP505-E/M4 - 100MHz 16-bit DSC CAN-FD | Microchip
MPN: DSPIC33CK32MP505-E/M4 ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $5.42 | $5.42 |
| 10 | $4.88 | $48.80 |
| 100 | $4.35 | $435.00 |
| 500 | $3.92 | $1,960.00 |
| 1,000 | $3.55 | $3,550.00 |
DSPIC33CK32MP505-E/M4 Overview
A digital signal controller combines the computational throughput of a DSP with the peripheral integration and deterministic interrupt structure of a microcontroller. Within the power-management hierarchy, DSCs sit above general-purpose MCUs for control-loop tasks and below application processors, making the dsPIC33CK family the industry workhorse for high-frequency closed-loop control such as digital power conversion and motor control.
Key features of the DSPIC33CK32MP505-E/M4 include DC to 100 MIPS core execution, 250 ps PWM resolution via high-resolution PWM peripherals, three integrated analog op-amps and three analog comparators that offload analog signal conditioning, plus CAN Flexible Data-rate (CAN FD) for industrial networking. The Peripheral Trigger Generator (PTG) enables autonomous peripheral sequencing without CPU intervention, further shortening control-loop latency.
Architecturally, the dsPIC33CK core uses a modified Harvard architecture with a single-cycle 16x16 MAC DSP engine, dual-partition flash supporting live update firmware switching, and ECC-protected program memory on larger family members. The 3.0 V to 3.6 V supply range aligns with standard 3.3 V rails, and the extended -40C to +125C operating range of the E-grade suffix supports industrial and automotive-adjacent environments.
Typical applications include digital power supplies (LLC, totem-pole PFC), brushless DC and PMSM motor control, and high-end sensing systems where the 250 ps PWM edge resolution enables fine duty-cycle control for peak-efficiency tracking. The CAN FD interface suits industrial automation nodes and gateways.
Design consideration: budget the 8 KB SRAM carefully for control-loop state and buffering, and place a low-ESR capacitor on the internal regulator VCAP pin per the Microchip datasheet layout guidance for core stability.
This page synthesizes distributor inventory data, same-package drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.
Drop-in alternatives for DSPIC33CK32MP505-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 DSPIC33CK32MP505-E/M4 (same form factor and footprint) — differing in Package, Qualification, Operating Temperature, Architecture, Core.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33CK32MP505-I/M4
✅ Drop-In✓ In Stock
$3.78 / Unit
View Datasheet →DSPIC33CK32MP505T-I/M4
✅ Drop-In✓ In Stock
$1.61 / Unit
View Datasheet →DSPIC33CK64MP205-E/M4
✅ Drop-In✓ In Stock
$3.4 / Unit
View Datasheet →DSPIC33CK32MC105-E/M4
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$3.2 / Unit
View Datasheet →DSPIC33CK256MP205-E/M4
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$1.87 / Unit
View Datasheet →DSPIC33CK32MP505-E/M4 Maximum Ratings & Electrical Characteristics
| Core | dsPIC33CK 16-bit DSC core |
| Maximum CPU Speed | 100 MHz (100 MIPS) |
| Program Flash | 32 KB |
| Data SRAM | 8 KB |
| Supply Voltage | 3.0 V to 3.6 V |
| Operating Temperature | -40C to +125C |
| PWM Resolution | 250 ps (High-Resolution PWM) |
| Analog Op-Amps | 3 integrated op-amps |
| Analog Comparators | 3 comparators |
| CAN Interface | CAN FD (Flexible Data-rate) |
| Peripheral Trigger Generator | Yes (PTG) |
| Package | 48-UQFN (6x6 mm) |
| Mounting Type | Surface Mount |
| Architecture | Modified Harvard, dual-partition flash with live update |
| Qualification Suffix | E = extended temperature grade |
DSPIC33CK32MP505-E/M4 48-uqfn (6x6 mm) Pin Configuration Guide
Pin configuration for DSPIC33CK32MP505-E/M4 (48-uqfn (6x6 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 DSPIC33CK32MP505-E/M4.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33CK32MP505-E/M4 is suitable for 6 applications: Digital Power Conversion, BLDC / PMSM Motor Control, Advanced Sensing and Control, High-Accuracy AC-DC Chargers and Adapters, Industrial Automation and CAN FD Networking, Wireless-Connected IoT Control Nodes.
Digital Power Conversion
The DSPIC33CK32MP505-E/M4 fits digital power supplies because its 250 ps high-resolution PWM resolves duty cycles finely enough for LLC, phase-shifted full-bridge, and totem-pole PFC stages operating above 100 kHz. The three integrated op-amps close current loops on-shite, eliminating external amplifiers and their offset errors, while the three comparators provide cycle-by-cycle overcurrent protection with nanosecond-class response. Running at 100 MIPS with single-cycle DSP MACs, the core sustains multi-loop control at high switching frequency with margin for compensation arithmetic. Placed as the supervisory controller with PWM outputs driving gate drivers, the part improves efficiency and transient response versus fixed-frequency analog control, though firmware validation adds development time compared to hardwired control.
Recommended
BLDC / PMSM Motor Control
For brushless DC and permanent-magnet synchronous motor drives, the DSPIC33CK32MP505-E/M4 offers a field-oriented-control-ready platform: 100 MHz execution, hardware DSP multiply-accumulate for Park/Clarke transforms, and 250 ps PWM edge resolution that minimizes current ripple and acoustic noise. The three on-chip op-amps condition low-side shunt current signals directly, and the analog comparators implement fast overcurrent trip without CPU latency. The extended -40C to +125C rating of this E-grade part suits motor-drive enclosures where ambient heat accumulates. Firmware can run sensorless estimators or hall-based commutation; PTG offloads repetitive ADC trigger sequencing from the CPU. The trade-off is 8 KB of SRAM, which constrains very complex observers on this 32 KB flash member of the family.
Recommended
Advanced Sensing and Control
Industrial sensing nodes benefit from the DSPIC33CK32MP505-E/M4 combination of on-chip analog conditioning and CAN FD connectivity. The integrated op-amps amplify bridge or shunt signals, the 12-bit-class ADC pipeline (triggered autonomously via the PTG) samples synchronously with PWM or external events, and the 100 MHz core applies DSP filtering in real time. CAN FD supports 64-byte data frames at higher bit rates than classical CAN, appropriate for factory floor sensor aggregation. The extended temperature grade permits mounting near motors, heaters, or outdoor enclosures. Designers should budget the 32 KB flash carefully, since DSP filter coefficients plus protocol stacks consume code space; a bootloader plus application scheme fits but leaves limited headroom.
Recommended
High-Accuracy AC-DC Chargers and Adapters
Switch-mode AC-DC chargers require precise, fast control of voltage and current loops plus protection logic - exactly the profile of the DSPIC33CK32MP505-E/M4. Its high-resolution PWM delivers fine pulse-width control for tight constant-current regulation, and the on-chip comparators implement primary-side overcurrent protection each switching cycle. At 100 MIPS the controller executes average-current-mode control plus housekeeping tasks concurrently. The -40C to +125C rating tolerates enclosed adapter thermals, and CAN FD (or UART on shared pins) supports charger-to-vehicle or battery-pack communication in smart-charging systems. Compared with a fixed-function PWM controller, firmware control adds safety-critical validation effort but enables adaptive charging algorithms and remote diagnostics.
Recommended
Industrial Automation and CAN FD Networking
As an industrial control node, the DSPIC33CK32MP505-E/M4 pairs deterministic 100 MHz control execution with an integrated CAN FD module, letting one chip handle both local actuation and network communication. Typical roles include I/O concentrators, small PLC function blocks, and gateways bridging CAN FD field buses to higher-level controllers. The PTG and DMA-oriented peripherals keep sampling and PWM generation running independently of communication stack load, preserving loop timing. Three op-amps reduce BOM cost in analog input front ends. The extended -40C to +125C range supports cabinet-less or fan-less installations. Engineers should verify ESD/surge protection on the CAN transceiver side, since the DSC itself requires external TVS protection on network lines.
Recommended
Wireless-Connected IoT Control Nodes
The DSPIC33CK32MP505-E/M4 serves as the deterministic control element in IoT edge devices, where its 100 MHz DSP core runs real-time control or signal processing while an external radio module handles connectivity. Its 3.0 V to 3.6 V supply range pairs directly with 3.3 V battery-backed or USB supplies. Analog integration (3 op-amps, 3 comparators) conditions sensor inputs locally, and the PTG automates sampling schedules to minimize CPU wake-ups for lower average power. Typical deployments include smart lighting drivers, environmental monitors, and connected actuators. Designers must accept that connectivity, security, and TLS stacks compete for the 32 KB flash and 8 KB SRAM, so split tasks between the DSC and a network microcontroller or select a larger-memory family variant.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33CK32MP505-E/M4 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33CK32MP505-I/M4 | DSPIC33CK64MP205-E/M4 | DSPIC33CK32MC105-E/M4 | DSPIC33CK256MP205-E/M4 |
|---|---|---|---|---|---|
| Package | 48-UQFN (6x6 mm) | 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 Speed | 100 MHz | 100 MHz | 100 MHz | 100 MHz | 100 MHz |
| Program Flash | 32 KB | 32 KB | 64 KB | 32 KB | 256 KB |
| SRAM | 8 KB | 8 KB | 8 KB | 8 KB | 24 KB |
| Operating Temperature | -40C to +125C | -40C to +85C | -40C to +125C | -40C to +125C | -40C to +125C |
| Integrated Op-Amps | 3 | 3 | 3 | reduced analog set vs MP50x | 3 |
| CAN FD | Yes | Yes | Yes | Yes | Yes |
| PWM Resolution | 250 ps | 250 ps | 250 ps | 250 ps | 250 ps |
Key Differentiators
- Extended -40C to +125C temperature rating (vs DSPIC33CK32MP505-I/M4)
- Full MP50x analog integration on a 48-pin footprint (vs DSPIC33CK32MC105-E/M4)
- Cost-optimized 32 KB flash for compact control firmware (vs DSPIC33CK256MP205-E/M4)
- Memory headroom upgrade path on identical footprint (vs DSPIC33CK64MP205-E/M4)
Design Notes
Supply the DSPIC33CK32MP505-E/M4 from a clean 3.0 V to 3.6 V rail. Decouple each VDD pin with 100 nF ceramic capacitors placed within 2 mm of the pin, plus one bulk 4.7 uF to 10 uF capacitor near the package. The internal core regulator requires the datasheet-specified low-ESR capacitor on the VCAP pin - omitting or undersizing it causes core instability and erratic resets. Per Microchip's dsPIC33CK family datasheet layout guidance, keep the VCAP loop area minimal and do not route switching node traces near it.
On the 48-UQFN (6x6 mm) land pattern, solder the exposed thermal pad to a grounded copper pour with an array of thermal vias; this anchors the ground reference for analog op-amps and spreads heat for the extended -40C to +125C rating. Separate the analog ground region under the op-amp/comparator pins from the PWM switching return currents, joining at a single point near the thermal pad. Route high-resolution PWM outputs away from analog inputs to avoid coupling jitter into ADC samples.
Two frequent mistakes: first, assuming 32 KB flash is ample - a bootloader, CAN FD stack, and control firmware can approach the limit, so verify the linker map early or select a larger-memory family variant (DSPIC33CK64MP205/256MP205). Second, using the I-grade (-40C to +85C) in a design measured to run hot; the E-grade part on this page is rated to +125C. Also confirm that dual-partition live-update is only usable within available flash partitions per the Microchip datasheet before committing a field-update scheme.
Compliance Information
Compliance status not stated in the provided verified web data. The part is a standard industrial (non-automotive) grade device; E suffix denotes extended temperature rating -40C to +125C. Confirm RoHS/REACH on the Microchip product page compliance summary for this exact ordering code.
