DSPIC33CK128MC506-E/PT - 100MHz 16-bit DSC, 128KB Flash | Microchip
MPN: DSPIC33CK128MC506-E/PT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $6.1 | $6.10 |
| 10 | $5.55 | $55.50 |
| 100 | $4.95 | $495.00 |
| 500 | $4.45 | $2,225.00 |
| 1,000 | $3.95 | $3,950.00 |
DSPIC33CK128MC506-E/PT Overview
A digital signal controller combines the computational throughput of a DSP with the peripheral integration and control architecture of a microcontroller. Within the embedded-system hierarchy, the DSC sits between a general-purpose MCU and a dedicated DSP, making it the preferred device class for closed-loop control loops that require both fast math execution and rich on-chip analog and timing peripherals. The dsPIC33CK family represents Microchip's single-core, 100 MHz generation of this device class.
Key features include an integrated DSP engine with single-cycle MAC and dual 40-bit accumulators, on-chip operational amplifiers, a 12-bit high-speed ADC, high-resolution PWM peripherals, and CAN FD connectivity for automotive and industrial networks. These peripherals offload deterministic control tasks from software, reducing interrupt latency in time-critical loops.
Architecturally, the DSPIC33CK128MC506 uses a modified Harvard pipeline running at up to 100 MIPS, with hardware division and DSP multiply-accumulate instructions. The 128 KB of Flash supports self-programming and firmware field updates, while the 16 KB RAM accommodates control variables, filter histories, and communication buffers for motor-control and digital-power algorithms.
Typical applications include brushless DC and PMSM motor control, digital power supplies (LLC, totem-pole PFC), solar inverters, and industrial sensing nodes requiring CAN FD backhaul. The combination of high-speed PWM and fast ADC sampling suits sub-100 kHz switching power stages with cycle-by-cycle current limiting.
For design, budget the ADC sampling and PWM update timing so control-loop jitter stays below one PWM period, and verify the -40C to +125C (E-grade) temperature derating on Flash endurance in your end application.
This page synthesizes distributor pricing, same-family drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.
Drop-in alternatives for DSPIC33CK128MC506-E/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 DSPIC33CK128MC506-E/PT (same form factor and footprint) — differing in ADC Resolution, Flash Memory, Operating Temperature, Package.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33CK256MC506-E/PT
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33CK64MC506-E/PT
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33CK32MC506-E/PT
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33CK64MC506-I/PT
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33CK128MC506-E/PT Maximum Ratings & Electrical Characteristics
| Core Architecture | 16-bit dsPIC DSC |
| Maximum CPU Speed | 100 MHz (100 MIPS) |
| Flash Memory | 128 KB (128K x 8) |
| RAM | 16 KB |
| Package | 64-TQFP (10 x 10 mm) |
| Operating Temperature | -40C to +125C |
| ADC Resolution | 12-bit |
| CAN Interface | CAN FD |
| Integrated Op-Amps | Yes |
| PWM Peripherals | High-speed PWM |
| DSP Engine | Single-cycle MAC, dual 40-bit accumulators |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
| Packaging | Tray |
| Series | dsPIC33CK128MC50X |
DSPIC33CK128MC506-E/PT 64-tqfp (10 x 10 mm) Pin Configuration Guide
Pin configuration for DSPIC33CK128MC506-E/PT (64-tqfp (10 x 10 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 DSPIC33CK128MC506-E/PT.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33CK128MC506-E/PT is suitable for 6 applications: Brushless DC and PMSM Motor Control, Digital Power Supplies (LLC and Totem-Pole PFC), Solar String Inverters and Energy Storage, Industrial Sensing and Condition Monitoring Nodes, Automotive-Adjacent Pumps, Fans, and Actuators, Networking Gateways and Embedded Control Heads.
Brushless DC and PMSM Motor Control
The DSPIC33CK128MC506-E/PT fits motor control because its 100 MHz core executes field-oriented control (FOC) loops well inside one PWM period, while high-speed PWM peripherals generate complementary outputs with dead-time insertion in hardware. The integrated op-amps condition shunt-based phase current measurements without external amplifier ICs, and the 12-bit ADC provides synchronized sampling for dq-axis current reconstruction. In a typical 48 V BLDC drive, the controller closes current loops at 20-50 kHz and speed loops at 1 kHz, with CAN FD handling command traffic from the host. The 128 KB Flash accommodates FOC algorithms, parameter identification, and a Modbus or CANopen stack simultaneously. The E-grade -40C to +125C range suits industrial drive enclosures where ambient temperatures approach 85C.
Recommended
Digital Power Supplies (LLC and Totem-Pole PFC)
Digital power conversion benefits from the DSPIC33CK128MC506-E/PT's fine-resolution PWM edges and fast ADC triggering, which together support cycle-by-cycle current limiting in 65-500 kHz LLC and totem-pole PFC stages. The 100 MIPS DSP engine computes the control law - typically a PID or 3P3Z compensator - within a single switching period, avoiding loop delay that degrades phase margin in high-bandwidth converters. Integrated op-amps amplify current-transformer or shunt signals, saving board area in compact AC-DC designs. Burst mode, phase shedding, and soft-start profiles are implemented in firmware, letting one hardware platform serve multiple power ratings. With 128 KB Flash, multiple converter firmware images and diagnostic logging coexist on-chip, and the E temperature grade covers power-supply internal ambients up to 105C with margin.
Recommended
Solar String Inverters and Energy Storage
In solar string inverters and battery energy-storage converters, the DSPIC33CK128MC506-E/PT runs MPPT (maximum power point tracking) algorithms on its 100 MHz core while simultaneously closing the grid-side current loop with the high-speed PWM and 12-bit ADC. The CAN FD interface implements CAN 2.0/FD battery-management communication to string inverters' storage packs, a common requirement in ESS architectures. The 128 KB Flash holds MPPT scheduling, anti-islanding protection, and grid-code compliance tables, and the 16 KB RAM supports running averages and notch-filter histories for grid harmonic compensation. The -40C to +125C rating matches outdoor NEMA enclosure conditions, and hardware PWM fault inputs provide nanosecond-scale shutdown on overcurrent events independent of software latency.
Recommended
Industrial Sensing and Condition Monitoring Nodes
Industrial condition-monitoring nodes use the DSPIC33CK128MC506-E/PT to sample vibration, current, and temperature channels through the 12-bit ADC at kilohertz rates, execute FFT or RMS computations on-chip via the DSP MAC instructions, and forward condensed health metrics over CAN FD or UART to a SCADA gateway. The integrated op-amps buffer low-level sensor signals, and the 128 KB Flash stores calibration tables and feature-extraction code alongside the communication stack. Because computation happens at the edge, the network carries kilobits of results instead of megabytes of raw waveforms, reducing bus loading. The E-grade temperature range and surface-mount 64-TQFP package support DIN-rail and motor-junction-box installations exposed to -40C cold starts and sustained +85C ambients.
Recommended
Automotive-Adjacent Pumps, Fans, and Actuators
Electric water pumps, cooling fans, and throttle actuators in commercial vehicles and off-highway equipment require -40C to +125C rated controllers with deterministic motor control and robust networking - a profile matched by the DSPIC33CK128MC506-E/PT. The device closes sensorless FOC loops using its 12-bit ADC and integrated op-amps, drives the three-phase bridge with hardware dead-time PWM, and reports diagnostics over CAN FD. The 100 MHz core executes position-estimation observers (sliding-mode or flux-linkage based) without external co-processors. Its 128 KB Flash supports functional-safety logging and multiple actuator firmware variants on one platform. Designers should verify the applicable AEC-Q100 qualification level with Microchip for direct in-vehicle placement, as this E-grade part is positioned for automotive-adjacent and off-highway zones.
Recommended
Networking Gateways and Embedded Control Heads
Embedded control heads and protocol gateways leverage the DSPIC33CK128MC506-E/PT's combination of CAN FD, multiple UART/SPI/I2C ports, and a 100 MHz core to translate between fieldbus and local device networks. The 128 KB Flash hosts dual protocol stacks plus an in-field bootloader, and the 16 KB RAM buffers message queues for bursty traffic aggregation. The 12-bit ADC and integrated op-amps let the same device monitor local analog points such as bus voltage and enclosure temperature, consolidating I/O in one chip. The 64-TQFP package supplies enough general-purpose I/O for relay drive and status indication. Its E-grade temperature rating and RoHS-compliant, surface-mount construction suit industrial control panels where uptime targets exceed 50,000 hours.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33CK128MC506-E/PT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33CK256MC506-E/PT | DSPIC33CK64MC506-E/PT | DSPIC33CK32MC506-E/PT | DSPIC33CK64MC506-I/PT |
|---|---|---|---|---|---|
| Package | 64-TQFP (10x10) | 64-TQFP (10x10) - same | 64-TQFP (10x10) - same | 64-TQFP (10x10) - same | 64-TQFP (10x10) - 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 | 128 KB | 256 KB | 64 KB | 32 KB | 64 KB |
| RAM | 16 KB | 24 KB | 8 KB | 4 KB | 8 KB |
| Operating Temperature | -40C to +125C | -40C to +125C | -40C to +125C | -40C to +125C | -40C to +85C |
| CAN FD | Yes | Yes | Yes | Yes | Yes |
| 12-bit ADC / Op-Amps | Yes / Yes | Yes / Yes | Yes / Yes | Yes / Yes | Yes / Yes |
| Drop-in Compatible | - | Yes - pin-to-pin | Yes - pin-to-pin | Yes - pin-to-pin | Yes - pin-to-pin (temp grade differs) |
Key Differentiators
- 2x code capacity headroom (vs DSPIC33CK64MC506-E/PT)
- Extended temperature rating (vs DSPIC33CK64MC506-I/PT)
- Cost-optimized vs larger Flash sibling (vs DSPIC33CK256MC506-E/PT)
Design Notes
Decouple every VDD pin pair with 100 nF X7R ceramic capacitors placed within 2 mm of the pins, plus at least one bulk 10 uF capacitor near the package. Connect all VSS pins to a solid ground plane through short vias; do not share a single thermal-relief via chain across multiple ground pins. Route the high-speed PWM outputs away from ADC input traces to prevent switching edges from coupling into current-sense channels, which would corrupt FOC feedback.
Estimated: at 100 MHz the dsPIC33CK core draws on the order of tens of milliamps; verify the exact IDD figure in the manufacturer datasheet electrical characteristics table before sizing your 3.3 V regulator. Add margin for simultaneous peripheral loading (ADC, op-amps, CAN FD) and select a regulator with at least 2x worst-case headroom to handle Flash-write current spikes during self-programming.
Confirm configuration-word settings (oscillator source, watchdog, code protection) match your programmer project file - mismatched config bits are the most common bring-up failure on dsPIC33 devices. When migrating between Flash-size variants of the MC506 family, rebuild rather than re-flash: linker memory maps differ. Also verify -40C to +125C (E-grade) Flash retention/endurance specifications in the datasheet if the product must endure sustained high-ambient operation.
Compliance Information
RoHS compliance confirmed by JLCPCB listing. AEC-Q100 qualification level not stated in provided data - confirm with Microchip for automotive programs.