DSPIC33CK128MC505-E/PT - 100MHz 16-bit DSC CAN FD | Microchip
MPN: DSPIC33CK128MC505-E/PT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $6.1 | $6.10 |
| 10 | $5.55 | $55.50 |
| 100 | $4.92 | $492.00 |
| 500 | $4.45 | $2,225.00 |
| 1,000 | $4.05 | $4,050.00 |
DSPIC33CK128MC505-E/PT Overview
A Digital Signal Controller combines the compute throughput of a DSP with the deterministic control and peripheral set of a microcontroller. Within the power management hierarchy, a DSC sits between general-purpose MCUs and dedicated DSPs, making the dsPIC33CK family the standard choice for closed-loop digital power conversion and precision motor control where both fast math and rich analog peripherals are required.
Key features include a single 100 MHz dsPIC DSC core with DSP instruction extensions and zero-overhead looping, four DMA channels, high-resolution PWM modules suited to peak-current-mode power supplies, and CAN FD for automotive and industrial networking. The 12-bit ADC supports simultaneous multi-channel sampling, while the integrated op-amps reduce external component count in current-sense front ends.
Architecturally, the dsPIC33CK core uses a modified Harvard bus with separate program and data paths, enabling single-cycle MAC operations and deterministic interrupt latency. The E-grade option qualifies the device for operation across -40C to +125C, supporting thermally demanding industrial and automotive-adjacent environments.
Typical applications include brushless DC (BLDC) and PMSM motor drives, digitally controlled switch-mode power supplies (SMPS) and LLC converters, and CAN FD networked control nodes in industrial automation and automotive subsystems.
Design consideration: the DSPIC33CK128MC505 does not include a USB peripheral; system designers needing USB connectivity should evaluate the dual-core dsPIC33CH family instead, while keeping the same toolchain.
This page synthesizes distributor pricing, drop-in same-family alternatives, pinout guidance, and practical design notes not found in the manufacturer datasheet.
Drop-in alternatives for DSPIC33CK128MC505-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 DSPIC33CK128MC505-E/PT (same form factor and footprint) — differing in PWM, Package, ADC Resolution, Core Speed, RAM.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33CK128MC505-I/PT
✅ Drop-In✓ In Stock
$2.41 / Unit
View Datasheet →DSPIC33CK128MC505T-E/PT
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33CK128MC505-H/PT
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33CK128MC106-E/PT
✅ Drop-In✓ In Stock
$4.2 / Unit
View Datasheet →DSPIC33CK128MC505-E/PT Maximum Ratings & Electrical Characteristics
| Core | dsPIC33CK 16-bit DSC core |
| Core Speed | 100 MHz (up to 100 MIPS) |
| Flash Program Memory | 128 KB (128K x 8) |
| RAM | 16 KB |
| Package | 48-TQFP (7x7 mm), 0.5 mm pitch |
| Operating Temperature | -40C to +125C (E grade) |
| ADC Resolution | 12-bit |
| CAN Interface | CAN Flexible Data-Rate (CAN FD) |
| PWM | High-Speed PWM |
| On-chip Op-Amps | Yes |
| DMA Channels | 4 |
| External Interrupts | 4 |
| Serial I/O | 4 |
| Mounting Type | Surface Mount |
| Technology | CMOS |
DSPIC33CK128MC505-E/PT 48-tqfp (7x7 mm), 0.5 mm pitch Pin Configuration Guide
Pin configuration for DSPIC33CK128MC505-E/PT (48-tqfp (7x7 mm), 0.5 mm pitch 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 DSPIC33CK128MC505-E/PT.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33CK128MC505-E/PT is suitable for 6 applications: BLDC/PMSM Motor Drives, Digital Switch-Mode Power Supplies (SMPS/LLC), Automotive CAN FD Control Nodes, Industrial Automation and Robotics, Wireless-Enabled IoT Sensing Nodes, Test, Measurement and Instrumentation.
BLDC/PMSM Motor Drives
The DSPIC33CK128MC505-E/PT fits sensorless and sensored three-phase motor drives because its high-speed PWM offers complementary outputs with programmable dead time for the inverter bridge, while the 12-bit ADC samples phase currents simultaneously through the integrated op-amps, eliminating external signal-conditioning ICs. Field-oriented control (FOC) loops run comfortably on the 100 MHz dsPIC33CK core at 100 MIPS, with DSP MAC instructions accelerating Park/Clarke transforms. In practice the controller sits between the current-shunt front end and the gate drivers; the -40C to +125C E-grade rating covers the hot ambient inside sealed motor housings. The trade-off versus dual-core dsPIC33CH parts is the absence of a slave core, so very high-frequency control loops share one CPU - usually acceptable up to roughly 20 kHz FOC update rates.
Recommended
Digital Switch-Mode Power Supplies (SMPS/LLC)
Digital power converters benefit from the DSPIC33CK128MC505-E/PT's high-resolution PWM and fast 12-bit ADC: peak-current-mode and voltage-mode control loops for buck, boost, LLC, and totem-pole PFC stages close in software with cycle-by-cycle current limiting. The 100 MIPS core executes compensator math deterministically, and DMA offloads ADC results without CPU intervention. Typical topology places the DSC as the single control IC, replacing analog compensation networks - a quantified benefit is parameter tunability over temperature without component changes. The CAN FD interface adds digital telemetry and PMBus-like supervisory communication in rack power systems. The E-grade temperature rating supports fans-less power supplies in industrial cabinets up to +125C ambient, provided junction thermal design keeps margins per datasheet theta-JA values.
Recommended
Automotive CAN FD Control Nodes
The integrated CAN FD controller makes the DSPIC33CK128MC505-E/PT a strong candidate for automotive and industrial networked nodes such as body controllers, pump controllers, and sensor aggregators. CAN FD raises the data-phase rate to 8 Mbps, letting one frame carry hundreds of bytes - useful for diagnostic dumps and OTA-style parameter updates. Combined with the on-chip high-speed PWM and ADC, a single device can close a local control loop and bridge it onto the vehicle network, removing a second MCU. Place the DSC behind an MCP2562-family transceiver with proper split termination; the E-grade -40C to +125C range matches under-hood-adjacent zones. Note that this commercial-grade part is not itself AEC-Q100 qualified - select the automotive-ordered variant if formal qualification is required.
Recommended
Industrial Automation and Robotics
In factory automation, the DSPIC33CK128MC505-E/PT serves as a compact motion and I/O controller: its four DMA channels keep ADC, UART, and PWM data flowing without CPU stalls, while four external interrupts handle encoder index and limit-switch events with deterministic latency. The 128 KB Flash stores FOC, trajectory, and fieldbus stacks with headroom; 16 KB RAM buffers communication frames. Typical deployments include stepper/servo sub-drives, gripper controllers, and CAN FD-connected sensor nodes on production lines. The 48-pin TQFP (7x7 mm) footprint balances GPIO density with hand-solderability for rework. The E-grade rating tolerates cabinet environments up to +125C, and development proceeds under MPLAB X with the XC16 compiler, reusing dsPIC33EP code where peripheral libraries align.
Recommended
Wireless-Enabled IoT Sensing Nodes
For intelligent sensing nodes, the DSPIC33CK128MC505-E/PT provides local signal conditioning and control with its 12-bit ADC and op-amps, then forwards processed data over CAN FD or UART to a wireless module. A practical architecture pairs the DSC with an ATSAMR21-based radio subassembly (as used on the ATSAMR21-XPRO reference platform) so the 100 MIPS core handles real-time filtering while the radio stack runs independently. The four serial I/O channels support multiple sensors concurrently, and DMA minimizes wake-up energy in duty-cycled designs. The 48-pin TQFP suits compact PCBs, and the -40C to +125C E-grade range covers outdoor enclosures. Trade-off: no native USB or radio - both require companion ICs, which this family accepts readily via its flexible PPS pin mapping.
Recommended
Test, Measurement and Instrumentation
Bench and portable instruments use the DSPIC33CK128MC505-E/PT as an acquisition and control engine: the 12-bit ADC with simultaneous multi-channel sampling captures probe or shunt signals, integrated op-amps provide gain staging, and the 100 MHz core performs DSP filtering (FIR/IIR via hardware MAC) before results reach a display or host over UART/SPI. High-resolution PWM generates stimulus waveforms or bias rails with fine duty resolution, useful in source-measure units and electronic loads. The 48-pin TQFP integrates into stacked instrument boards, and CAN FD enables daisy-chained multi-instrument synchronization. The E-grade temperature spec keeps calibrations valid across laboratory and field extremes. Memory limits (128 KB/16 KB RAM) suit single-function instruments; data loggers needing large buffers should pair the DSC with external SRAM.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33CK128MC505-E/PT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33CK128MC505-I/PT | DSPIC33CK128MC505T-E/PT | DSPIC33CK128MC505-H/PT | DSPIC33CK128MC503-I/M5 | DSPIC33CK128MC106-E/PT |
|---|---|---|---|---|---|---|
| Package | 48-TQFP (7x7 mm, 0.5 mm pitch) | 48-TQFP (7x7 mm) - same | 48-TQFP (7x7 mm) - same | 48-TQFP (7x7 mm) - same | 48-VQFN (M5) - different footprint | 48-TQFP (7x7 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core / Speed | dsPIC33CK 100 MHz (100 MIPS) | dsPIC33CK 100 MHz | dsPIC33CK 100 MHz | dsPIC33CK 100 MHz | dsPIC33CK 100 MHz | dsPIC33CK 100 MHz |
| Flash Memory | 128 KB | 128 KB | 128 KB | 128 KB | 128 KB | 128 KB |
| RAM | 16 KB | 16 KB | 16 KB | 16 KB | 16 KB | 16 KB |
| Temperature Range | -40C to +125C (E grade) | -40C to +85C (I grade) | -40C to +125C (E grade) | H grade (higher, per Microchip USA listing) | -40C to +85C (I grade) | -40C to +125C (E grade) |
| Packaging Option | Tray | Tray | Tape & Reel | Tray | Tray (T suffix = reel) | Tray |
Key Differentiators
- Extended temperature operation (vs DSPIC33CK128MC505-I/PT)
- CAN FD at no cost vs classic CAN predecessors (vs DSPIC33EP256MC506-I/PT)
- Integrated analog front end (vs DSPIC33CK128MC503-I/M5)
Design Notes
Estimated: budget the 3.3V rail per dsPIC33CK family typical core/I-O current (tens of mA at 100 MHz operation); the exact maximum figures must be taken from the datasheet electrical characteristics table, which was not included in the verified data for this page. Place a 10uF bulk plus 0.1uF ceramic capacitor at each VDD/VSS pair, as close to the pins as possible, and follow the datasheet decoupling reference schematic to keep the high-speed core and ADC noise-free.
The 48-TQFP (7x7 mm) footprint uses 0.5 mm lead pitch - specify a 0.2 mm-width stencil aperture and non-solder-mask-defined pads to avoid bridging. Route the CAN FD bus as a controlled pair to the transceiver with split termination at the node, and keep the 12-bit ADC reference path away from PWM switching loops; a ground island under the analog pins significantly lowers ADC noise in motor-control layouts.
Three recurring mistakes: (1) selecting the -I grade (-40C to +85C) for an application that reaches +105C ambient - always choose E grade with margin; (2) forgetting that the DSC has no USB peripheral and selecting it for a USB-connected product by mistake; (3) assuming AEC-Q100 qualification from the automotive positioning language - verify the qualified ordering code explicitly with Microchip before releasing an automotive BOM.
Compliance Information
Verified web data did not include formal RoHS/REACH/lead-free declarations. Current Microchip production parts are typically RoHS compliant - confirm on the Microchip product page for your date code. No AEC-Q100 statement found in the provided data.
