DSPIC33CK64MP508-I/PT - 100MHz 16-bit DSC, 64KB Flash | Microchip
MPN: DSPIC33CK64MP508-I/PT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $5.1 | $5.10 |
| 10 | $4.65 | $46.50 |
| 100 | $4.2 | $420.00 |
| 500 | $3.85 | $1,925.00 |
| 1,000 | $3.55 | $3,550.00 |
DSPIC33CK64MP508-I/PT Overview
A digital signal controller combines the computational throughput of a digital signal processor (DSP) with the peripheral integration and control-oriented architecture of a microcontroller. Within the power-management hierarchy, the dsPIC33CK family sits above basic MCUs and targets real-time closed-loop control: digital power conversion, motor control, and advanced sensing where deterministic interrupt latency and hardware DSP multiply-accumulate operations are essential.
Key differentiating features include 3 on-chip operational amplifiers and 3 comparators that offload analog signal conditioning for current-sense loops, the Peripheral Trigger Generator (PTG) for hardware-sequenced tasks, and a CAN-FD interface for industrial and automotive networking. The 100 MHz core executes a modified Harvard instruction set with single-cycle DSP MAC instructions, enabling high-bandwidth control loops such as multi-phase LLC or field-oriented control (FOC).
Architecturally, the dsPIC33CK core delivers deterministic performance with zero-cycle stall DSP operations, multiple interrupt priority levels, and a rich DMA capable of servicing ADC results and UART/SPI traffic without CPU intervention. High-resolution PWM peripherals with dead-time insertion and fault inputs make it a natural fit for switch-mode power stages.
Typical applications include digital power supplies (LLC, totem-pole PFC), brushless DC and PMSM motor drives, wireless charging, server PSU control, and CAN-FD connected industrial sensors.
Design consideration: the device operates from a 3.0V to 3.6V supply (3.3V nominal) and requires careful analog ground partitioning to exploit the integrated op amps; use Microchip MPLAB X with XC16 compiler and the PICkit or ICD programming tools. ICSP requires using PGECx/PGEDx pin pairs as matched pairs.
This page synthesizes distributor inventory data, drop-in family alternatives, and practical design notes not found in the manufacturer datasheet alone.
Drop-in alternatives for DSPIC33CK64MP508-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 DSPIC33CK64MP508-I/PT (same form factor and footprint) — differing in Package, High-Resolution PWM, Operating Temperature, Core, Core Architecture.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33CK64MP508-E/PT
✅ Drop-In✓ In Stock
$2.35 / Unit
View Datasheet →DSPIC33CK128MP508-I/PT
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33CK256MP508-I/PT
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$3.95 / Unit
View Datasheet →DSPIC33CH256MP508-I/PT
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$5.84 / Unit
View Datasheet →DSPIC33CH512MP508T-I/PT
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$4.22 / Unit
View Datasheet →DSPIC33CK64MP508-I/PT Maximum Ratings & Electrical Characteristics
| Core | dsPIC33CK 16-bit DSC core |
| CPU Speed | 100 MHz |
| Flash Program Memory | 64 KB (64K x 8) |
| SRAM | 8 KB |
| Supply Voltage | 3 V to 3.6 V (3.3 V nominal) |
| Number of Pins | 80 |
| Package | 80-TQFP (12x12 mm) |
| On-chip Op Amps | 3 |
| On-chip Comparators | 3 |
| CAN Interface | CAN-FD |
| Peripheral Trigger Generator (PTG) | Yes |
| Temperature Grade | -40C to +85C (Industrial, I suffix) |
| Mounting Type | Surface Mount |
| Programming Interface | ICSP (PGECx/PGEDx pairs) |
| Series | dsPIC33CK, Functional Safety (FuSa) capable |
DSPIC33CK64MP508-I/PT 80-tqfp (12x12 mm) Pin Configuration Guide
Pin configuration for DSPIC33CK64MP508-I/PT (80-tqfp (12x12 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 DSPIC33CK64MP508-I/PT.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33CK64MP508-I/PT is suitable for 6 applications: Digital Power Supplies (LLC / Totem-Pole PFC), Brushless DC and PMSM Motor Control, Wireless Charging Transmitters and Receivers, CAN-FD Connected Industrial Sensing and Control Nodes, Server and Telecom Power Shelf Control, Drone ESC and Flight Power Management.
Digital Power Supplies (LLC / Totem-Pole PFC)
The DSPIC33CK64MP508-I/PT fits digital power conversion because its 100 MHz core executes single-cycle DSP MAC instructions for the compensation math in LLC and totem-pole PFC loops, while 3 on-chip op amps condition current-shunt feedback without external amplifiers and 3 comparators provide cycle-by-cycle overcurrent protection. In a typical server PSU design, high-resolution PWM peripherals generate phase-shifted drive signals with dead-time insertion, and the Peripheral Trigger Generator sequences ADC sampling precisely at PWM valley points to minimize switching-noise-induced measurement error. The CAN-FD module enables telemetry and PMBus-style monitoring on the system bus. Unlike analog-control power stages, firmware control allows adaptive mode switching between burst, CCM, and DCM operation with a single silicon platform.
Recommended
Brushless DC and PMSM Motor Control
For field-oriented control (FOC) of BLDC and PMSM motors, the DSPIC33CK64MP508-I/PT offers a directly aligned feature set: the 100 MHz 16-bit DSC core runs Clarke/Park transforms and PI current loops at tens of kHz update rates using hardware DSP instructions, while the 3 integrated operational amplifiers amplify low-level shunt resistor signals (typically 10-50 mV full scale) to ADC input range, and 3 comparators implement fast overcurrent trip that shuts PWM outputs within one PWM cycle. Dedicated PWM modules support center-aligned, complementary outputs with programmable dead time for three-phase inverters. The 80-pin TQFP provides ample I/O for Hall/encoder interfaces and communication. Microchip's Motor Control Application Frameworks target this family specifically.
Recommended
Wireless Charging Transmitters and Receivers
Wireless power transfer demands precise frequency-tuned control of a resonant half/full bridge, which the DSPIC33CK64MP508-I/PT addresses with high-resolution PWM, fast analog comparators for zero-voltage-switching detection, and integrated op amps for current-mode feedback. The 100 MHz core regulates power delivery by adjusting operating frequency and duty cycle in a closed loop, maintaining coil-to-coil tuning under varying coupling and load conditions per the Qi control model. The Peripheral Trigger Generator synchronizes ADC sampling of coil current and voltage at consistent phase points, improving demodulation accuracy of the power-control protocol. The 80-pin TQFP package supports multiple coil positions and foreign-object detection sensing channels in transmitter designs.
Recommended
CAN-FD Connected Industrial Sensing and Control Nodes
The integrated CAN-FD module makes the DSPIC33CK64MP508-I/PT well suited to industrial nodes that stream processed sensor data on modern CAN-FD networks up to the higher FD data rates, offloading the host for real-time tasks. The 3 op amps condition analog sensor signals (pressure, current, position) on-chip, the 100 MHz core applies DSP filtering (IIR/FIR) before transmission, and 8KB SRAM buffers message payloads. The Functional Safety (FuSa) designation noted by DigiKey supports deployment in safety-relevant industrial equipment. The 80-pin package leaves sufficient I/O for local actuators, status indicators, and auxiliary UART/SPI/I2C devices, making it a compact single-chip smart-node controller replacing MCU-plus-external-ADC-plus-op-amp chains.
Recommended
Server and Telecom Power Shelf Control
In datacenter power shelves, the DSPIC33CK64MP508-I/PT serves as the hot-swap, eFuse, or DC-DC stage controller: 100 MHz deterministic core performance handles multi-loop regulation, comparators implement hardware fast-fault paths independent of software latency, and the CAN-FD/PMBus-style messaging integrates with shelf management controllers. The 3 integrated op amps accept hot-swap shunt and back-plane current signals directly, reducing BOM count versus discrete amplifier solutions. The Peripheral Trigger Generator aligns ADC sampling with PWM switching instants, which is essential for accurate average-current measurement in multiphase converters. Microchip explicitly positions the dsPIC33CK family for server power supplies in its digital power portfolio documentation.
Recommended
Drone ESC and Flight Power Management
Electronic speed controllers (ESCs) for drones benefit from the DSPIC33CK64MP508-I/PT's combination of 100 MHz DSP throughput for sensorless FOC, hardware overcurrent comparators, and high-resolution PWM for smooth low-throttle behavior. The 3 op amps amplify single- or multi-shunt phase currents so the ADC resolves the small signals needed for low-speed sensorless startup, while the core executes sliding-mode or high-frequency-injection observers in real time. The industrial -40C to +85C temperature grade suits outdoor airframe environments. The 80-pin TQFP supports multiple ESC channels or ESC-plus-BEC integration on one controller. Microchip lists drones among target dsPIC33 family applications on its product pages.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33CK64MP508-I/PT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33CK64MP508-E/PT | DSPIC33CK128MP508-I/PT | DSPIC33CK256MP508-I/PT | DSPIC33CH256MP508-I/PT | DSPIC33CH512MP508T-I/PT |
|---|---|---|---|---|---|---|
| Package | 80-TQFP (12x12) | 80-TQFP (12x12) - same | 80-TQFP (12x12) - same | 80-TQFP (12x12) - same | 80-TQFP (12x12) - same | 80-TQFP (12x12) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| CPU Speed | 100 MHz | 100 MHz | 100 MHz | 100 MHz | 100 MHz main core | 100 MHz main core + aux DSP core |
| Flash Memory | 64 KB | 64 KB | 128 KB | 256 KB | 256 KB | 512 KB |
| Cores | 1 (dsPIC33CK) | 1 (dsPIC33CK) | 1 (dsPIC33CK) | 1 (dsPIC33CK) | 2 (dsPIC33CH dual-core) | 2 (dsPIC33CH dual-core) |
| Temperature Range | -40C to +85C (Industrial) | -40C to +125C (Extended) | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C |
| CAN Interface | CAN-FD | CAN-FD | CAN-FD | CAN-FD | CAN-FD | CAN-FD |
Key Differentiators
- Single-core simplicity with full 100 MHz performance (vs DSPIC33CH256MP508-I/PT)
- Extended temperature drop-in option (vs DSPIC33CK64MP508-E/PT)
- Integrated analog front end (vs DSPIC33CK64MC105T-I/M4)
Design Notes
For the 80-TQFP (12x12 mm) package, place a 0.1 uF ceramic decoupling capacitor at each VDD pin pair within 2 mm of the pin, plus a 10 uF bulk capacitor near the device. Use a solid ground plane on layer 2 and connect the exposed thermal-pattern vias under the chip to it. Keep the analog pins (op amp inverting/non-inverting inputs, VDDCORE, AVDD) on a quiet island with an RC filter from digital VDD, since the 3 integrated op amps will amplify ground noise just as readily as sensor signals.
ICSP programming requires PGECx/PGEDx pins used strictly as matched pairs - if PGEC2 carries ICSPCLK, ICSPDAT must connect to PGED2, per Microchip's dsPIC33CK64MP508 programming documentation. Mixing pairs from different numbers prevents programming. Also reserve MCLR with a 10 kOhm pull-up and keep Programming headers accessible in production; do not drive PGECx/PGEDx nets with external circuitry during reset. Firmware must configure the on-chip voltage regulator (VDDCORE) per datasheet capacitor requirements.
The 80-TQFP draws modest power; estimated dissipation at 100 MHz active operation is typically well under 0.5 W (estimated: ~50 mA typical operating current at 3.3 V is a common family value, giving ~165 mW - confirm exact ICC from the manufacturer datasheet for your clock and peripheral configuration). Standard 2 oz copper pour of about 1 square inch around the package keeps junction temperature well below the +125C absolute rating at +85C ambient; no heatsink is required for typical digital power control workloads.
Route PWM outputs to gate drivers as short, matched-length traces and keep them away from op amp input traces; the high-resolution PWM edges can capacitively couple into the analog front end and corrupt current-sense readings. Ground-shield or space analog traces at least 3x trace width from PWM nets. Sample ADC synchronously at PWM valley via the Peripheral Trigger Generator rather than free-running, which is the technique Microchip's digital power reference designs use to reject switching noise.
Compliance Information
Compliance certificates were not present in the retrieved distributor data. DigiKey describes the part as a Functional Safety (FuSa) capable dsPIC 33CK. Confirm RoHS/REACH status on the Microchip product page before regulatory documentation.