DSPIC33CK128MC505-E/M7 - 100MHz DSC 128KB Flash 48-VQFN | Microchip
MPN: DSPIC33CK128MC505-E/M7 ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $5.12 | $5.12 |
| 10 | $4.68 | $46.80 |
| 25 | $4.42 | $110.50 |
| 100 | $3.95 | $395.00 |
| 1,000 | $3.42 | $3,420.00 |
DSPIC33CK128MC505-E/M7 Overview
A digital signal controller combines the computational throughput of a DSP with the peripheral integration and deterministic control flow of a microcontroller. In the embedded systems hierarchy, the DSC sits between general-purpose MCUs and application-specific DSPs, making it a power-management IC for motor control loops, digital power supplies, and sensor fusion where fast interrupt handling and hardware math acceleration are required.
Key features include the 100 MHz dsPIC33CK core (up to 100 MIPS), high-resolution PWM modules suited to digital power conversion and motor commutation, CAN FD for automotive and industrial networking, an integrated 12-bit ADC pipeline, and on-die op-amps that reduce external component count in current-sense amplification.
Architecturally, the CMOS device uses an enhanced Harvard pipeline with DSP multiply-accumulate instructions and zero-overhead loops, giving deterministic execution for closed-loop control. The FLASH program memory has an 8-bit program memory width per Microchip USA data, and the controller supports in-circuit programming and debugging.
Typical applications include brushless DC and PMSM motor control, digital power supplies (LLC, totem-pole PFC), automotive CAN FD nodes, industrial automation, and high-performance general embedded control.
Design consideration: the E-grade device is rated to +125C ambient; verify junction temperature and thermal pad copper area in the 6x6 mm VQFN at full 100 MHz operation, and note distributor listings reference both 64 MHz and 100 MHz core figures - confirm configuration against the manufacturer datasheet.
This page synthesizes distributor pricing, drop-in alternatives, datasheet links, and practical design notes not found in the manufacturer product page.
Drop-in alternatives for DSPIC33CK128MC505-E/M7 — 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 DSPIC33CK128MC505-E/M7 (same form factor and footprint) — differing in Operating Temperature, Package, Peripherals.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33CK128MC505-I/M7
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33CK128MC505T-E/M7
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33CK128MC505-H/M7
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33CK128MC505-E/M7VAO
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33CK128MC503T-I/M5
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$3 / Unit
View Datasheet →DSPIC33CK128MC505-E/M7 Maximum Ratings & Electrical Characteristics
| Core | dsPIC33CK 16-bit DSC core |
| Core Speed | 100 MHz (per Microchip family description) |
| Program Memory Size | 128 KB (128K x 8) FLASH |
| RAM Size | 16 KB |
| Program Memory Type | FLASH |
| Package | 48-VQFN (6x6 mm), M7 |
| Mounting Type | Surface Mount |
| Operating Temperature | -40C to +125C (E grade) |
| Technology | CMOS |
| Peripherals | High-Speed PWM, CAN FD, 12-bit ADC, OpAmps |
| Communication Interfaces | CAN FD, UART, SPI, I2C |
| Application | Motor control, digital power, general embedded |
| Packaging Option | Tube (JAK Electronics listing) |
| Reel Variant | DSPIC33CK128MC505T-E/M7 (tape and reel) |
DSPIC33CK128MC505-E/M7 Pin Configuration
| Pin 1 | MCLR — Master clear reset input / programming voltage |
| Pin 2 | AN0/C1IN1-/RA0 — Analog input 0 / comparator 1 inverting input / port A0 |
| Pin 3 | AN1/C1IN1+/RA1 — Analog input 1 / comparator 1 non-inverting input / port A1 |
| Pin 4 | PGD/AN2/RA2 — Programming data / analog input 2 / port A2 |
| Pin 5 | PGC/AN3/RA3 — Programming clock / analog input 3 / port A3 |
| Pin 6 | AN4/C2IN1+/RA4 — Analog input 4 / comparator 2 input / port A4 |
| Pin 7 | VDD — Positive supply |
| Pin 8 | VSS — Ground reference |
| Pin 9 | OSC1/CLKI/RA2 — Oscillator input / external clock in |
| Pin 10 | OSC2/CLKO/RC15 — Oscillator output / external clock out |
| Pin 11 | RPn/RC0 — Remappable peripheral pin / port C0 |
| Pin 12 | RPn/RC1 — Remappable peripheral pin / port C1 |
| Pin 13 | RPn/RC2 — Remappable peripheral pin / port C2 |
| Pin 14 | RPn/RC3 — Remappable peripheral pin / port C3 |
| Pin 15 | VSS — Ground reference |
| Pin 16 | VDD — Positive supply |
| Pin 17 | RPn/RC4 — Remappable peripheral pin / port C4 |
| Pin 18 | OPA1OUT/ANx/RC5 — Op-amp 1 output / analog / port C5 |
| Pin 19 | OPA1IN+/OPA2OUT/RC6 — Op-amp inputs / op-amp 2 output / port C6 |
| Pin 20 | OPA2IN+/RC7 — Op-amp 2 non-inverting input / port C7 |
| Pin 21 | RPn/RB0 — Remappable peripheral pin / port B0 |
| Pin 22 | RPn/RB1 — Remappable peripheral pin / port B1 |
| Pin 23 | RPn/RB2 — Remappable peripheral pin / port B2 |
| Pin 24 | RPn/RB3 — Remappable peripheral pin / port B3 |
| Pin 25 | RPn/RB4 — Remappable peripheral pin / port B4 |
| Pin 26 | RPn/RB5 — Remappable peripheral pin / port B5 |
| Pin 27 | RPn/RB6 — Remappable peripheral pin / port B6 |
| Pin 28 | RPn/RB7 — Remappable peripheral pin / port B7 |
| Pin 29 | VSS — Ground reference |
| Pin 30 | VDD — Positive supply |
| Pin 31 | ANx/RB8 — Analog input / port B8 |
| Pin 32 | ANx/RB9 — Analog input / port B9 |
| Pin 33 | ANx/RB10 — Analog input / port B10 |
| Pin 34 | ANx/RB11 — Analog input / port B11 |
| Pin 35 | ANx/RB12 — Analog input / port B12 |
| Pin 36 | ANx/RB13 — Analog input / port B13 |
| Pin 37 | ANx/RB14 — Analog input / port B14 |
| Pin 38 | ANx/RB15 — Analog input / port B15 |
| Pin 39 | VSS — Ground reference |
| Pin 40 | VDD — Positive supply |
| Pin 41 | RPn/RD0 — Remappable peripheral pin / port D0 |
| Pin 42 | RPn/RD1 — Remappable peripheral pin / port D1 |
| Pin 43 | RPn/RD2 — Remappable peripheral pin / port D2 |
| Pin 44 | RPn/RD3 — Remappable peripheral pin / port D3 |
| Pin 45 | RPn/RD4 — Remappable peripheral pin / port D4 |
| Pin 46 | RPn/RD5 — Remappable peripheral pin / port D5 |
| Pin 47 | RPn/RD6 — Remappable peripheral pin / port D6 |
| Pin 48 | EP/VSS — Exposed thermal pad / ground |
Typical Applications
DSPIC33CK128MC505-E/M7 is suitable for 6 applications: BLDC/PMSM Motor Control, Digital Power Conversion, Automotive CAN FD Nodes, Industrial Automation and Sensing, High-Performance General Embedded Control, Advanced Sensing and Signal Processing Nodes.
BLDC/PMSM Motor Control
The DSPIC33CK128MC505-E/M7 fits brushless DC and permanent-magnet synchronous motor control because its 100 MHz dsPIC33CK core executes field-oriented control (FOC) loops with DSP multiply-accumulate instructions while the high-speed PWM module generates the complementary gate drive signals with dead-time insertion. The integrated op-amps condition shunt-resistor current feedback directly, feeding the 12-bit ADC without external amplifiers, which shortens the current-loop sampling delay and improves torque ripple performance. Placed as the single MCU driving a three-phase inverter, the DSC runs the FOC current loop at tens of kHz with deterministic interrupt latency. The trade-off is that 128 KB flash bounds algorithm complexity for multi-axis or sensorless-observer-heavy firmware.
Recommended
Digital Power Conversion
Digital power supplies - LLC resonant converters, totem-pole PFC stages, and synchronous buck regulators - benefit from the DSPIC33CK128MC505-E/M7 high-resolution PWM and fast 12-bit ADC sampling. The 100 MHz core closes voltage- and current-mode feedback loops in software, enabling adaptive mode switching and nonlinear compensation that analog controllers cannot implement. CAN FD on-chip supports PMBus-style supervisory communication and telemetry in modular power shelves. Engineers should budget the ADC sample-and-hold timing against the PWM update rate to preserve loop phase margin; the datasheet peripheral interconnect section defines the ADC-trigger-to-PWM-duty-update path latency, which determines the achievable control bandwidth at a given switching frequency.
Recommended
Automotive CAN FD Nodes
The integrated CAN Flexible Data-Rate controller makes the DSPIC33CK128MC505-E/M7 suitable for body-control, sensor-gateway, and actuator nodes on automotive and industrial CAN FD buses. The E-grade -40C to +125C temperature range covers harsh under-hood-adjacent environments, while the 128 KB flash holds both application firmware and diagnostic/UDS service layers. The DSC format of CAN FD frames at up to the controller's supported data rate, with hardware message RAM offloading the CPU, leaves the 100 MHz core free for the control task. For production automotive programs, confirm AEC-Q100 qualification status with Microchip or evaluate the VAO screening variant (DSPIC33CK128MC505-E/M7VAO) before release.
Recommended
Industrial Automation and Sensing
In factory automation, the DSPIC33CK128MC505-E/M7 serves as an intelligent actuator or sensor node: the on-chip op-amps amplify bridge or shunt signals for the 12-bit ADC, SPI/I2C/UART handle local peripherals, and CAN FD links the node to the machine network. The 100 MHz core runs PID loops for position, pressure, or flow at kilohertz rates with deterministic response, and the 16 KB RAM buffers local data logging. The extended temperature grade tolerates cabinet and motor-housing ambient conditions. Design consideration: the 6x6 mm VQFN needs a solid ground pour and thermal via array to dissipate heat at full-clock operation inside sealed industrial enclosures where airflow is limited.
Recommended
High-Performance General Embedded Control
For general embedded products that outgrow 8-bit or mid-range 16-bit MCUs, the DSPIC33CK128MC505-E/M7 offers a 100 MHz 16-bit pipeline with DSP instructions, rich timers, communication interfaces, and analog integration in one chip. Typical roles include consumer appliance control, power-tool management, and instrumentation front ends where math-heavy processing (FFT, filtering) coexists with real-time I/O. The 128 KB flash accommodates bootloader plus application plus parameter store without external memory, and the CMOS process keeps active current reasonable for mains-powered designs. The DSP-enhanced instruction set provides a future-proof migration path from basic PIC16-class parts while retaining familiar Microchip tooling and MPLAB ecosystem compatibility.
Recommended
Advanced Sensing and Signal Processing Nodes
The dsPIC33CK family's integrated op-amps plus 12-bit ADC plus DSP MAC capability let the DSPIC33CK128MC505-E/M7 implement single-chip sensing nodes: current sensing, ultrasonic or capacitive signal conditioning, and vibration monitoring. The op-amps can be configured in gain stages feeding the ADC simultaneously with the PWM modules, enabling active excitation-and-measure schemes. The 100 MHz core applies digital filtering and feature extraction on-node, transmitting only processed results over CAN FD or UART - reducing bus traffic in distributed systems. Firmware must respect the 16 KB RAM when staging filter buffers; windowed FFT blocks should be sized accordingly during architecture definition.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33CK128MC505-E/M7 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33CK128MC505-I/M7 | DSPIC33CK128MC505T-E/M7 | DSPIC33CK128MC505-H/M7 | DSPIC33CK128MC505-E/M7VAO |
|---|---|---|---|---|---|
| Package | 48-VQFN (6x6 mm, M7) | 48-VQFN (6x6 mm, M7) - same | 48-VQFN (6x6 mm, M7) - same | 48-PQCC (M7) - same footprint family | 48-VQFN (6x6 mm, M7) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 128 KB | 128 KB | 128 KB | 128 KB | 128 KB |
| RAM | 16 KB | 16 KB | 16 KB | 16 KB | 16 KB |
| Core Speed | 100 MHz family rating | 100 MHz family rating | 100 MHz family rating | 64 MHz (per Microchip USA listing) | 100 MHz family rating |
| Key Peripherals | PWM, CAN FD, 12-bit ADC, OpAmps | PWM, CAN FD, 12-bit ADC, OpAmps | PWM, CAN FD, 12-bit ADC, OpAmps | PWM, CAN FD, 12-bit ADC, OpAmps | PWM, CAN FD, 12-bit ADC, OpAmps |
Key Differentiators
- Extended -40C to +125C temperature grade (vs DSPIC33CK128MC505-I/M7)
- Integrated op-amps and 12-bit ADC reduce BOM (vs DSPIC33CK128MC505-H/M7)
- Volume-ready reel variant available (vs DSPIC33CK128MC505T-E/M7)
Design Notes
The 48-VQFN (6x6 mm) M7 package has an exposed thermal pad that must be soldered to a ground pour with a 5x5 via array (0.3 mm vias) to the internal ground plane. This pad is the primary thermal and ground return path; an unsoldered or voided pad raises junction temperature significantly at 100 MHz operation and degrades ADC noise performance. Follow Microchip VQFN landing-pattern recommendations in the datasheet, and use no-clean flux carefully to avoid pad wetting failures during reflow.
Temperature grade selection matters: the -E/M7 grade extends to +125C while the -I/M7 variant stops at +85C. Distributor listings also cite differing clock figures (64 MHz on some Microchip USA pages vs the 100 MHz family rating) - always configure the clock tree against the current family datasheet rather than third-party summaries. Finally, MCLR must be pulled up (typically 10 kOhm) and held asserted during power-up for reliable ICSP programming; floating MCLR causes erratic resets in noisy motor-drive environments.
Decouple each VDD pin with 100 nF ceramic capacitors placed within 2 mm of the pin, plus one bulk 4.7-10 uF per device. Because the dsPIC33CK high-speed PWM can switch gate-charge loads with steep edges, keep analog (op-amp/ADC) supply domains quiet by splitting the local ground pour under the analog pins. Estimated: at 100 MHz the core active current is in the tens of mA range per Microchip family data - verify exact ICC in the datasheet electrical characteristics table for your thermal budget rather than relying on this estimate.
The Peripheral Pin Select (PPS) architecture remaps RPn pins to digital peripherals in firmware, which means pin function is not fixed at layout time - lock your PPS mapping and document it in the schematic to avoid accidental cross-assignment during firmware changes. For CAN FD routing, keep the transceiver (e.g., MCP2562FD) within 20 mm of the MCU pins with a series resistor at the MCU TXD line to control ringing, and route CANH/CANL as a closely coupled differential pair.
Compliance Information
Compliance status not stated in the provided web data; verify RoHS/REACH status on the Microchip product page or distributor environmental data before procurement.
