DSPIC33CK64MP505-I/PT - 16-bit 100MHz DSC, 64KB Flash | Microchip
MPN: DSPIC33CK64MP505-I/PT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $4.72 | $4.72 |
| 10 | $4.25 | $42.50 |
| 100 | $3.78 | $378.00 |
| 500 | $3.42 | $1,710.00 |
| 1,000 | $3.15 | $3,150.00 |
DSPIC33CK64MP505-I/PT Overview
A digital signal controller combines the computational throughput of a DSP with the peripheral integration and deterministic interrupt architecture of a microcontroller. Within the embedded systems hierarchy, DSCs occupy the space between general-purpose MCUs and dedicated DSPs, making them the de facto standard for closed-loop digital power conversion and precision motor control, where fast multiply-accumulate (DSP) instructions and cycle-accurate PWM peripherals must operate together.
Key features of this part include the 100 MHz dsPIC DSC core with DSP engine, high-resolution PWM (HRPWM) for sub-nanosecond power-conversion resolution, three integrated analog comparators, three on-chip operational amplifiers (op-amps), a Peripheral Trigger Generator (PTG), and the CAN-FD module for modern in-vehicle and industrial networking. These peripherals eliminate external analog front-end components in power stages, reducing BOM cost and board area.
Architecturally, the dsPIC33CK family uses an enhanced Harvard bus structure with single-cycle MAC and hardware divide, plus autonomous peripherals that can operate without CPU intervention. The MP-family is the peripheral-rich flagship of the 33CK line, positioned for applications that need the analog front end (op-amps, comparators, ADC with high sample rates) plus CAN-FD connectivity on one chip.
Typical applications include digital power supplies (totem-pole PFC, LLC converters), brushless DC and PMSM motor drives, solar micro-inverters, and automotive/industrial CAN-FD sensor and actuator nodes.
A key design consideration: the integrated op-amps and comparators must be correctly configured via the Peripheral Pin Select (PPS) system, and ICSP programming requires PGECx/PGEDx pins to be used strictly in pairs.
This page synthesizes distributor pricing, drop-in family alternatives, pinout access, and practical design notes not consolidated in the manufacturer datasheet.
Drop-in alternatives for DSPIC33CK64MP505-I/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 DSPIC33CK64MP505-I/PT (same form factor and footprint) — differing in Operating Temperature, Package, CAN Interface, Core, PWM.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33CK64MP505-E/PT
✅ Drop-In✓ In Stock
$2.32 / Unit
View Datasheet →DSPIC33CK128MP505-I/PT
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33CK256MP505-I/PT
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33CK32MP502-I/SS
✅ Drop-In✓ In Stock
$2.35 / Unit
View Datasheet →DSPIC33CK64MP505-I/PT Maximum Ratings & Electrical Characteristics
| Core | dsPIC33CK 16-bit DSC core |
| Core Speed | 100 MHz |
| Flash Memory | 64KB (64K x 8) |
| SRAM | 8KB |
| Supply Voltage Range | 3 V to 3.6 V |
| Package | 48-TQFP (7x7 mm), PT |
| Operating Temperature | -40C to +85C (Industrial) |
| CAN | CAN Flexible Data (CAN-FD) |
| PWM | High-Resolution PWM (HRPWM) |
| Analog Comparators | 3 |
| On-chip Op-Amps | 3 |
| Peripheral Trigger Generator | Yes (PTG) |
| Mounting Type | Surface Mount |
| Pin Count | 48 |
| Programming Interface | ICSP (In-Circuit Serial Programming), PGECx/PGEDx pairs |
| Product Family | dsPIC33CK MP (digital power and motor control) |
| Functional Safety Support | Yes (FuSa variant documentation available) |
DSPIC33CK64MP505-I/PT 48-tqfp (7x7 mm), pt Pin Configuration Guide
Pin configuration for DSPIC33CK64MP505-I/PT (48-tqfp (7x7 mm), pt 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/PT.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33CK64MP505-I/PT is suitable for 6 applications: Digital Power Supplies, Brushless DC and PMSM Motor Control, CAN-FD Networked Industrial Nodes, Solar Micro-Inverters, Advanced Sensing and Control Systems, Functional Safety Control Platforms.
Digital Power Supplies
The DSPIC33CK64MP505-I/PT fits digitally controlled AC-DC and DC-DC converters because its 100 MHz dsPIC33CK core closes voltage and current loops fast enough for switching stages in the hundreds of kHz, while the High-Resolution PWM delivers the fine duty-cycle resolution needed for tight output regulation. The 3 on-chip op-amps amplify current-shunt signals without external amplifiers, and the 3 analog comparators provide hardware-fast cycle-by-cycle overcurrent protection independent of the CPU. Typical topologies include totem-pole PFC, LLC, and phase-shifted full bridge. Unlike analog-control designs, a firmware-controlled power stage allows adaptive dead-time, soft-start shaping, and telemetry via CAN-FD. The main trade-off is software complexity: loop tuning and protection latency must be validated on hardware.
Recommended
Brushless DC and PMSM Motor Control
For BLDC and PMSM drives the DSPIC33CK64MP505-I/PT provides complementary or center-aligned High-Resolution PWM for the three-phase inverter, on-chip op-amps for low-side current sensing, and comparators for overcurrent trip - all the analog front-end blocks a sensorless FOC drive needs. The 100 MHz core executes field-oriented control with single-cycle MAC instructions, keeping current-loop bandwidth high even at electrical speeds typical of industrial servo and drone motors. The Peripheral Trigger Generator synchronizes ADC sampling to PWM center points, minimizing switching-noise corruption of current feedback. Position sensing can use encoder or hall interfaces, or sensorless estimation runs on-core. Trade-off: sensorless startup algorithms consume code space, so watch the 64KB FLASH budget versus larger 128/256KB MP505 siblings.
Recommended
CAN-FD Networked Industrial Nodes
The integrated CAN Flexible Data module makes the DSPIC33CK64MP505-I/PT a strong fit for industrial and vehicular nodes that must move larger payloads or faster periodic frames than classic CAN allows. CAN-FD supports higher data-phase bit rates and up to 64-byte payloads, useful for firmware-update distribution, sensor fusion streams, and deterministic control networks. Combined with the 100 MHz core and PTG for autonomous task triggering, one chip can handle network stack plus real-time control. Typical nodes include motor drives, energy-management controllers, and smart actuators on factory fieldbuses. Design consideration: the 3V-3.6V supply and the CAN-FD transceiver must share a clean 3.3V rail, and transceiver selection determines the achievable data-phase rate.
Recommended
Solar Micro-Inverters
Micro-inverter designs benefit directly from the DSPIC33CK64MP505-I/PT's combination of High-Resolution PWM for the DC-DC MPPT stage and grid-frequency inverter stage, on-chip op-amps for current and voltage sense conditioning, and comparators for hardware overcurrent protection. The 100 MHz core runs MPPT algorithms (perturb-and-observe or incremental conductance) alongside grid-synchronization (PLL) and anti-islanding logic within one deterministic interrupt structure. Because analog front-end functions are integrated, per-channel signal-chain cost falls versus discrete op-amp designs, an important factor at consumer-solar volumes. The industrial temperature rating suits rooftop enclosures; for extreme heat choose the -E extended variant, which is drop-in identical. Grid-certification firmware consumes code space - evaluate the 64KB limit early.
Recommended
Advanced Sensing and Control Systems
General high-precision sensing platforms use the DSPIC33CK64MP505-I/PT because Microchip positions the 33CK MP-family for advanced sensing and control: the on-chip op-amps can be configured as programmable-gain front ends for bridge or shunt sensors, the ADC is triggered autonomously by the PTG for jitter-free sampling, and DSP instructions execute filtering (IIR/FIR) on-core in real time. This removes external analog conditioning ICs in multi-channel measurement nodes such as weigh scales, pressure transmitters, and power-quality monitors. Results can stream over CAN-FD or UART-based links. Trade-off: op-amp bandwidth and gain configurations are fixed by the silicon - verify they meet your signal bandwidth in the family datasheet before committing the design.
Recommended
Functional Safety Control Platforms
The DSPIC33CK64MP505-I/PT is identified by DigiKey as a Functional Safety (FuSa) supporting device, making it appropriate for control loops where safety-integrity documentation is required, such as industrial drives with safe-torque-off features, e-bike and light-electric-vehicle controllers, and battery-management master controllers. The hardware comparators give an independent, CPU-free overcurrent protection path, and the CAN-FD interface supports network-level safety messaging. Microchip provides FuSa collateral for the dsPIC33CK family to support ISO-class development processes. Design consideration: safety architectures typically require heartbeat/ question-answer communication and independent monitoring channels - the 64KB FLASH must accommodate both application and safety code, so budget for the 128KB or 256KB MP505 variants if the safety layer is large.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33CK64MP505-I/PT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33CK64MP505-E/PT | DSPIC33CK128MP505-I/PT | DSPIC33CK256MP505-I/PT | DSPIC33CK32MP502-I/SS |
|---|---|---|---|---|---|
| Package | 48-TQFP (7x7 mm) | 48-TQFP (7x7 mm) - same | 48-TQFP (7x7 mm) - same | 48-TQFP (7x7 mm) - same | 48-pin (SS) - same footprint family |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core Speed | 100 MHz | 100 MHz | 100 MHz | 100 MHz | 100 MHz |
| Flash Memory | 64KB | 64KB | 128KB | 256KB | 32KB |
| SRAM | 8KB | 8KB | 8KB | 8KB | 4KB |
| CAN-FD | Yes | Yes | Yes | Yes | No |
| On-chip Op-Amps / Comparators | 3 / 3 | 3 / 3 | 3 / 3 | 3 / 3 | reduced set |
| Operating Temperature | -40C to +85C | -40C to +125C | -40C to +85C | -40C to +85C | -40C to +85C |
Key Differentiators
- Integrated analog front end (3 op-amps + 3 comparators) in a 48-pin DSC (vs DSPIC33CK32MP502-I/SS)
- Extended-temperature drop-in twin available (vs DSPIC33CK64MP505-E/PT)
- Cost-efficient 64KB entry point to the MP50x 48-pin family (vs DSPIC33CK128MP505-I/PT)
Design Notes
Reserve one PGECx/PGEDx pair for ICSP on every board. The dsPIC33CK64MP505 has multiple debug pairs and any pair works, but ICSPCLK and ICSPDAT must come from the SAME pair (e.g., PGEC2 with PGED2) - documented in the family development notes (Northern Software dsPIC33CK64MP505 page). Mixing pairs is the most common bring-up failure. Add a series resistor on MCLR and a standard ICSP header footprint even if production programming is done in-fixture.
The device runs from a 3V to 3.6V single rail. Place 100 nF ceramic decoupling capacitors directly at each VDD/VSS pin pair with short return paths to the ground plane, and add bulk capacitance (4.7 uF to 10 uF) near the supply entry. When co-located with a power stage (motor inverter, PFC), separate the noisy power ground from the controller ground and join at a single point; PWM switching edges coupling into ADC or comparator inputs will corrupt current-feedback samples.
The Peripheral Pin Select (PPS) system maps most digital functions flexibly, which helps route around constraints - fix the analog pins (op-amp inputs, comparator inputs, ADC channels) early in layout since they are not freely assignable. Route PWM outputs away from analog traces and use ground guard regions under sense lines. Keep the CAN-FD transceiver as close as possible to the CANH/CANL connector with proper common-mode choke placement per transceiver layout guidance.
The 64KB FLASH fills faster than expected once CAN-FD stacks, FOC math, and diagnostics coexist - if your firmware estimate exceeds roughly 50KB, select DSPIC33CK128MP505-I/PT (same 48-TQFP footprint) to avoid a respin. Also verify the on-chip op-amp gain/bandwidth configuration satisfies your sensor bandwidth before deleting external amplifiers; the integrated amps trade bandwidth for BOM savings.
Compliance Information
Verified web data did not include explicit RoHS/REACH certificates. Standard Microchip catalog parts in active production are typically RoHS-compliant/lead-free, but confirm on the Microchip product page for your date code. AEC-Q100 applies to automotive-qualified variants; this is the standard industrial -I grade.
