DSPIC33CK64MP505-I/M4 - 100MHz 16-bit DSC 64KB Flash | Microchip
MPN: DSPIC33CK64MP505-I/M4 ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $4.75 | $4.75 |
| 10 | $4.28 | $42.80 |
| 100 | $3.75 | $375.00 |
| 500 | $3.42 | $1,710.00 |
| 1,000 | $3.1 | $3,100.00 |
DSPIC33CK64MP505-I/M4 Overview
A digital signal controller combines the computational throughput of a digital signal processor (DSP) with the peripheral integration and control architecture of a microcontroller (MCU). Within the power management hierarchy of embedded systems, the dsPIC33CK family sits in the 16-bit DSC class and is purpose-built for closed-loop control loops such as digital power conversion, motor control, and advanced sensing, where deterministic interrupt latency and high-resolution pulse-width modulation (PWM) matter more than general-purpose application throughput.
Key features of the DSPIC33CK64MP505 include three on-chip operational amplifiers (op-amps), three analog comparators, a high-resolution PWM peripheral, CAN Flexible Data-rate (CAN FD) for robust networking, and the Peripheral Trigger Generator (PTG) for autonomous peripheral sequencing. These peripherals offload time-critical tasks from the CPU, enabling faster control-loop update rates.
Technically, the dsPIC33CK core supports DSP instructions including barrel shifting and single-cycle MAC operations, with DMA channels servicing high-bandwidth peripherals such as the ADC. This allows sampling and control computations to run at hundreds of kilohertz loop rates typical of digital power supplies and field-oriented control (FOC) motor drives.
Typical applications include digital switch-mode power supplies (AC-DC, DC-DC), brushless DC (BLDC) and permanent-magnet synchronous motor (PMSM) control, LED drivers, and CAN FD-connected industrial sensing nodes.
For design, plan decoupling on all VDD pairs and validate the high-resolution PWM dead-time settings early; the extended-temperature -E variant shares the footprint if wider ambient ranges are needed later.
This page synthesizes distributor pricing, same-family drop-in variants, and practical design notes not consolidated in the manufacturer datasheet.
Drop-in alternatives for DSPIC33CK64MP505-I/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 DSPIC33CK64MP505-I/M4 (same form factor and footprint) — differing in Operating Temperature, Package, Architecture, Core, CAN Interface.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33CK64MP505-E/M4
✅ Drop-In✓ In Stock
$3.28 / Unit
View Datasheet →DSPIC33CK64MP505-H/M4
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33CK32MP505-I/M4
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$3.78 / Unit
View Datasheet →DSPIC33CK64MP508-I/M4
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33CK64MC105T-I/M4
✅ Drop-In✓ In Stock
Contact for price
View Datasheet →DSPIC33CK64MP505-I/M4 Maximum Ratings & Electrical Characteristics
| Core Architecture | 16-bit dsPIC33CK DSC core |
| Maximum Operating Frequency | 100 MHz |
| Flash Program Memory | 64 KB |
| SRAM | 8 KB |
| Package | 48-pin UQFN (6x6 mm) |
| Operating Temperature | -40C to +85C (I grade) |
| On-chip Operational Amplifiers | 3 |
| On-chip Comparators | 3 |
| CAN Interface | CAN FD |
| PWM Peripheral | High-Resolution PWM |
| Peripheral Trigger Generator | Yes (PTG) |
| Program Memory Width | 24-bit instruction word |
| DSP Features | Barrel shifter, DSP engine, DMA |
| Mounting Type | Surface Mount |
| Series | dsPIC33CK |
| RoHS Status | Compliant |
DSPIC33CK64MP505-I/M4 48-pin uqfn (6x6 mm) Pin Configuration Guide
Pin configuration for DSPIC33CK64MP505-I/M4 (48-pin 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 DSPIC33CK64MP505-I/M4.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33CK64MP505-I/M4 is suitable for 6 applications: Digital Switch-Mode Power Supplies, BLDC/PMSM Motor Control, LED Drivers and Lighting Control, CAN FD Industrial Sensing Nodes, Wireless Charging and Battery Management, Advanced Sensing and Control Systems.
Digital Switch-Mode Power Supplies
The DSPIC33CK64MP505-I/M4 fits AC-DC and DC-DC converter control where loop bandwidth and PWM resolution determine output quality. Its 100 MHz dsPIC33CK core with DSP engine computes voltage and current compensators at tens-to-hundreds of kHz update rates, while the high-resolution PWM delivers fine duty-cycle steps and programmable dead-time for half-bridge, full-bridge, and LLC topologies. The 3 on-chip op-amps amplify shunt or current-transformer signals internally, and the 3 comparators provide hardware cycle-by-cycle overcurrent trips routed straight to the PWM, keeping protection latency out of software. PTG and DMA offload ADC sequencing, leaving CPU headroom for housekeeping and CAN FD telemetry to a system controller.
Recommended
BLDC/PMSM Motor Control
For brushless DC and permanent-magnet synchronous motor drives, the DSPIC33CK64MP505-I/M4 provides the classic FOC signal chain on one chip. The 100 MHz core with single-cycle MAC executes Clarke/Park transforms and PI current loops fast enough for low-inductance motors. The high-resolution PWM generates three-phase complementary outputs with precise dead-time insertion, the 3 op-amps condition low-side shunt currents, and the 3 comparators implement overcurrent trip that blanks PWM within the switching period. CAN FD connects the drive to industrial or vehicle networks for command and diagnostics, and PTG can sequence ADC sampling synchronized to PWM intervals for clean current measurements.
Recommended
LED Drivers and Lighting Control
Digitally controlled LED drivers benefit from the DSPIC33CK64MP505-I/M4's high-resolution PWM, which enables fine dimming resolution and phase-shifted multi-string control without visible flicker. The 100 MHz core sustains constant-current regulation loops for boost, buck, or buck-boost LED stages, while the on-chip comparators enforce fast overcurrent protection during string faults or hot-plug events. CAN FD allows lighting systems in industrial or architectural installations to be networked for scheduling, dimming commands, and fault reporting. The 3 op-amps support multiple current-sense channels so several LED strings can be regulated and monitored from a single 48-pin controller.
Recommended
CAN FD Industrial Sensing Nodes
The integrated CAN FD controller makes the DSPIC33CK64MP505-I/M4 a strong fit for industrial sensing and actuation nodes that must stream data on modern CAN FD buses. The 100 MHz core performs digital filtering, RMS computation, and FFT-based diagnostics on sensor channels using DSP instructions, while DMA keeps ADC sampling continuous without CPU intervention. The on-chip op-amps condition bridge or shunt sensor signals before the ADC, and the 48-pin UQFN keeps node area compact for distributed I/O. The Peripheral Trigger Generator can autonomously chain ADC samples to processing bursts, reducing interrupt load in multi-node installations with deterministic bus traffic.
Recommended
Wireless Charging and Battery Management
Wireless power transmitters and battery chargers require precisely phase-controlled converters with fast fault response, both strengths of the DSPIC33CK64MP505-I/M4. The high-resolution PWM supports phase-shift and frequency control for resonant topologies, and the comparators trip within a switching cycle on abnormal current, protecting the power stage during foreign-object or misalignment events. The 3 op-amps monitor charge current and battery voltage sense dividers, while CAN FD reports state-of-charge and fault status to vehicle or base-station controllers. The 100 MHz core simultaneously runs the compensation loop and communication stack with margin, and DMA decouples sampling from computation.
Recommended
Advanced Sensing and Control Systems
High-performance sensing systems - such as precision pressure, flow, and load-cell front ends - use the DSPIC33CK64MP505-I/M4's analog integration and DSP throughput. The 3 on-chip op-amps amplify small differential sensor signals before the ADC, the 100 MHz DSP engine applies calibration, linearization, and filtering, and PTG automates excitation and sampling sequences for ratiometric measurements. Control outputs close the loop through the high-resolution PWM driving actuators or heaters. With 64 KB Flash, compensation tables and field-updatable firmware coexist comfortably, and CAN FD links the node into factory networks, replacing multiple discrete amplifiers, comparators, and a separate communication MCU.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33CK64MP505-I/M4 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33CK64MP505-E/M4 | DSPIC33CK64MP505-H/M4 | DSPIC33CK32MP505-I/M4 | DSPIC33CK64MC105T-I/M4 |
|---|---|---|---|---|---|
| Package | 48-pin UQFN (6x6 mm) | 48-pin UQFN (6x6 mm) - same | 48-pin UQFN (6x6 mm) - same | 48-pin UQFN (6x6 mm) - same | 48-pin UQFN (M4) - same footprint |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Max Clock Frequency | 100 MHz | 100 MHz | 64 MHz | 100 MHz | 100 MHz |
| Flash Memory | 64 KB | 64 KB | 64 KB | 32 KB | 64 KB |
| SRAM | 8 KB | 8 KB | 8 KB | 8 KB | 8 KB |
| Operating Temperature | -40C to +85C | Extended (up to +125C class) | -40C to +85C class | -40C to +85C | -40C to +85C |
Key Differentiators
- Full 100 MHz speed grade (vs DSPIC33CK64MP505-H/M4)
- Rich MP-series analog integration (vs DSPIC33CK64MC105T-I/M4)
- Extended-temperature upgrade path without redesign (vs DSPIC33CK64MP505-E/M4)
Design Notes
The 48-pin UQFN (6x6 mm) has a large exposed thermal pad and fine-pitch perimeter pads. Define a non-solder-mask-defined (NSMD) land pattern per the datasheet footprint, and dedicate a via array (typically 4-9 vias) under the exposed pad to the ground plane for both thermal relief and low-inductance grounding. Place 100 nF ceramic decoupling capacitors within 2 mm of each VDD/VSS pair. Avoid routing fast PWM outputs (high-resolution PWM edges) directly under the analog op-amp input traces to keep switching noise out of current-sense feedback.
Estimate: the dsPIC33CK core at 100 MHz draws on the order of tens of milliamps core current plus peripheral loads; budget the 3.3V rail accordingly and use separate ferrite beads for VDD and AVDD if analog accuracy is critical in motor-control or power-converter feedback paths. When the on-chip op-amps amplify sub-100 mV shunt signals, keep the AVDD rail clean and reference ADC ground at a Kelvin-connected shunt point. Confirm exact per-pin current limits and ICC figures in the manufacturer datasheet before finalizing the power budget.
Migration pitfalls: the -H/M4 speed grade tops out at 64 MHz versus 100 MHz for the -I/M4, so firmware configured for maximum PLL frequency will not run identically on the H variant. The -E/M4 extended-temperature variant shares the footprint but check maximum frequency derating at high ambient before substituting in high-temperature enclosures. When swapping to the 32 KB Flash DSPIC33CK32MP505-I/M4, verify code size including bootloader and CAN FD stack headroom; DSP libraries can push mid-size firmware past 32 KB quickly.
Compliance Information
RoHS-compliant lead-free production per standard Microchip dsPIC33CK distributor listings. Request current REACH/halogen-free declarations from Microchip by date code.
