DSPIC33CK64MP205T-I/M4 - 100MHz 16-bit DSC 64KB Flash | Microchip
MPN: DSPIC33CK64MP205T-I/M4 ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $5.12 | $5.12 |
| 10 | $4.61 | $46.10 |
| 100 | $4.05 | $405.00 |
| 500 | $3.68 | $1,840.00 |
| 1,000 | $3.27 | $3,270.00 |
DSPIC33CK64MP205T-I/M4 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 power management hierarchy, the dsPIC33CK family sits in the embedded processor category: microcontroller -> digital signal controller -> digital signal processor. These single-core DSCs are purpose-built for closed-loop control applications where fast, deterministic math (MAC, division, trigonometric) executes inside ISR deadlines measured in microseconds.
Key features include DC to 100 MIPS instruction throughput at 3.0-3.6V operation, a high-resolution PWM module with 250 ps effective resolution for digital power converters, three on-chip operational amplifiers and three analog comparators, and a CAN FD interface for automotive and industrial networks. Connectivity peripherals cover I2C, SPI, UART/USART, IrDA, and LINbus. The device belongs to the Functional Safety (FuSa) supported dsPIC33CK family and operates from -40C to +85C (industrial, /I temperature suffix).
Architecturally, the 16-bit dsPIC core uses an enhanced Harvard bus structure with a 24-bit instruction word, hardware DSP engine (single-cycle MAC), zero-overhead loops, and hardware division support, enabling control-law updates at PWM frequencies well above 500 kHz in digital power designs.
Typical applications include digital power supplies (LLC, PFC, buck), brushless and PMSM motor control, solar micro-inverters, and CAN FD-connected sensing nodes. The integrated op-amps and comparators eliminate external analog signal-conditioning ICs in current-sense paths.
Design consideration: the 48-pin UQFN 6x6 package requires thermal via arrays under the exposed pad for high-power switch-mode designs; plan ADC sampling synchronized to the PWM trigger outputs.
This page synthesizes verified distributor data, drop-in alternatives, and application-specific design guidance not found in the manufacturer datasheet alone.
Drop-in alternatives for DSPIC33CK64MP205T-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 DSPIC33CK64MP205T-I/M4 (same form factor and footprint) — differing in Core, Package, Packaging, CAN Interface, DMA Channels.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33CK64MP205-I/M4
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33CK64MP205T-E/M4
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33CK64MC105T-I/M4
✅ Drop-In✓ In Stock
Contact for price
View Datasheet →DSPIC33CK32MP205T-I/M4
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$2.98 / Unit
View Datasheet →DSPIC33CK16MP205T-I/M4
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33CH64MP205T-I/M4
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$3.45 / Unit
View Datasheet →DSPIC33CK64MP205T-I/M4 Maximum Ratings & Electrical Characteristics
| Core | dsPIC33CK (16-bit) |
| Core Speed | 100 MHz (DC to 100 MIPS) |
| Program Memory | 64 KB Flash (24-bit wide) |
| RAM | 8 KB |
| Supply Voltage | 3.0 V to 3.6 V |
| Operating Temperature | -40C to +85C |
| Package | 48-pin UQFN (6x6 mm), exposed pad |
| PWM Resolution | 250 ps |
| CAN Interface | CAN FD |
| Connectivity | I2C, SPI, UART/USART, IrDA, LINbus |
| On-chip Op-Amps | 3 |
| On-chip Comparators | 3 |
| Programmable Timing Generator | PTG |
| Functional Safety Support | Yes (FuSa family) |
| Mounting Type | Surface Mount |
| Packaging | Tape & Reel |
| Technology | CMOS |
| RoHS Status | Compliant |
DSPIC33CK64MP205T-I/M4 48-pin uqfn (6x6 mm), exposed pad Pin Configuration Guide
Pin configuration for DSPIC33CK64MP205T-I/M4 (48-pin uqfn (6x6 mm), exposed pad 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 DSPIC33CK64MP205T-I/M4.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33CK64MP205T-I/M4 is suitable for 6 applications: Digital Power Supplies (LLC, PFC, Buck), Brushless DC and PMSM Motor Control, Solar Micro-Inverters and Power Optimizers, CAN FD-Connected Sensing and Control Nodes, Advanced Sensing and Control Systems, High-Efficiency Consumer and Server Power (AC-DC, USB-PD).
Digital Power Supplies (LLC, PFC, Buck)
The DSPIC33CK64MP205T-I/M4 fits digital power conversion because its 250 ps high-resolution PWM provides the phase and frequency granularity required to regulate LLC and phase-shifted topologies at hundreds of kilohertz, while its three on-chip comparators deliver cycle-by-cycle overcurrent protection without CPU latency. The 100 MHz 16-bit core executes a 3p3z or PID compensator inside a single switching period, with single-cycle MAC and hardware divide shortening ISR execution. Placed as the sole controller, it senses output voltage and inductor current through the integrated op-amps into the 12-bit ADC, triggered synchronously from the PWM module. Unlike fixed-frequency analog controllers, firmware enables soft-start profiles, non-linear gain scheduling, and PMBus/CAN FD telemetry at no extra component cost.
Recommended
Brushless DC and PMSM Motor Control
For sensorless and sensored BLDC/PMSM drives, the DSPIC33CK64MP205T-I/M4 provides field-oriented control (FOC) execution at the 100 MHz core rate, with the DSP engine performing Park/Clarke transforms via single-cycle MAC instructions. The three on-chip op-amps directly condition low-side shunt or inline current signals, eliminating three external amplifier ICs and their matching errors, while the three comparators feed fast PWM trip events for hardware overcurrent shutdown. Complementary PWM outputs with 250 ps resolution minimize dead-time distortion at 20-100 kHz switching frequencies. Mounted on the inverter PCB near gate drivers, the controller updates duty cycles every PWM cycle, and the CAN FD interface links the drive to higher-level industrial or automotive networks.
Recommended
Solar Micro-Inverters and Power Optimizers
In solar micro-inverter designs, the DSPIC33CK64MP205T-I/M4 runs maximum power point tracking (MPPT) algorithms concurrently with grid-synchronized inverter control, leveraging the 100 MIPS budget to execute both loops plus safety monitoring in one device. The high-resolution PWM drives the DC-DC stage at hundreds of kilohertz where 250 ps resolution keeps gain steps small and EMI manageable, and on-chip comparators provide hardware-level fault isolation for DC bus overvoltage. The 12-bit ADC samples panel voltage/current and grid waveforms synchronized to the PWM trigger. The 3.0-3.6V supply and industrial temperature rating suit outdoor enclosure environments, and the PTG (Programmable Timing Generator) offloads deterministic sequencing tasks from the main firmware loop.
Recommended
CAN FD-Connected Sensing and Control Nodes
The DSPIC33CK64MP205T-I/M4 serves as an intelligent CAN FD node in industrial and automotive subnetworks, where its integrated CAN FD controller (up to 64-byte payloads) plus I2C, SPI, and UART peripherals consolidate communication without external bridges. The 16-bit core handles protocol stacks and local control concurrently, while the analog suite - op-amps, comparators, ADC - conditions sensor signals on-chip, reducing BOM count versus a general-purpose MCU plus external AFE. Being part of Microchip's Functional Safety (FuSa) supported dsPIC33CK family, safety-relevant diagnostic coverage options are available for automotive-adjacent designs. The 48-UQFN 6x6 mm footprint with exposed pad suits compact sensor modules; the /I grade covers -40C to +85C ambient conditions.
Recommended
Advanced Sensing and Control Systems
For advanced sensing platforms - ultrasonic, capacitive, and precision analog front ends - the DSPIC33CK64MP205T-I/M4 offers the PTG (Programmable Timing Generator) to autonomously sequence ADC sampling, PWM bursts, and communications with hardware timing precision independent of the CPU, reducing jitter in measurement pipelines. The three op-amps buffer and gain sensor outputs before the on-chip ADC, and the 100 MHz core runs filtering (IIR/FIR via DSP MAC) and calibration math in real time. Results stream over UART, SPI, I2C, or CAN FD to a host. This integration matters in multi-channel systems: one 48-pin UQFN replaces separate MCU, amplifier, and comparator components, shrinking PCB area and improving channel-to-channel timing correlation.
Recommended
High-Efficiency Consumer and Server Power (AC-DC, USB-PD)
In consumer and server power stages - adapters, USB-PD chargers, hot-swap shelf power - the DSPIC33CK64MP205T-I/M4 delivers the control bandwidth and protocol handling these designs demand: 250 ps PWM resolution for tight regulation of high-frequency flyback/LLC stages, on-chip comparators for primary-side protection, and hardware-capable communications for USB-PD or PMBus stacks on the UART/I2C peripherals. The 100 MIPS budget interleaves control ISR, protocol state machines, and housekeeping without race conditions thanks to deterministic interrupt nesting. Firmware-defined protection (constant current, constant voltage, cable drop compensation) replaces fixed analog compensation networks. The 3.3V operation and small UQFN-48 footprint fit compact adapter PCBs with typical controller-side power dissipation dominated by I/O and core draw only.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33CK64MP205T-I/M4 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33CK64MP205-I/M4 | DSPIC33CK64MC105T-I/M4 | DSPIC33CK32MP205T-I/M4 | DSPIC33CH64MP205T-I/M4 |
|---|---|---|---|---|---|
| Package | 48-UQFN (6x6 mm), exposed pad | 48-UQFN (6x6 mm) - same | 48-UQFN (6x6 mm) - same | 48-UQFN (6x6 mm) - same | 48-UQFN (6x6 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core Speed | 100 MHz (100 MIPS) | 100 MHz | 100 MHz | 100 MHz | 100 MHz master + slave core |
| Flash Memory | 64 KB | 64 KB | 64 KB | 32 KB | 64 KB |
| On-chip Op-Amps | 3 | 3 | 0 (MC series) | 3 | 3 |
| Temperature Range | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +125C (E grade) |
| CAN Interface | CAN FD | CAN FD | CAN FD | CAN FD | CAN FD |
| PWM Resolution | 250 ps | 250 ps | 250 ps | 250 ps | 250 ps |
Key Differentiators
- Integrated analog front-end (vs DSPIC33CK64MC105T-I/M4)
- Extended temperature option available (vs DSPIC33CK64MP205T-I/M4 vs DSPIC33CK64MP205T-E/M4)
- Deterministic single-core control (vs DSPIC33CH64MP205T-I/M4)
- Memory headroom (vs DSPIC33CK32MP205T-I/M4)
Design Notes
The 48-UQFN 6x6 mm /M4 package has a central exposed pad that is the main ground return and thermal path. Place a 5x5 (or larger) via array under the exposed pad connecting to a solid ground plane; per general Microchip QFN layout guidance, fill vias during assembly to prevent solder wicking. Keep the 3.3V decoupling - one 0.1uF ceramic per supply pin pair plus one 10uF bulk - within 2 mm of the pins. Route high dv/dt PWM outputs away from analog op-amp inputs to preserve ADC accuracy.
The device runs from a 3.0-3.6V supply; provide a local 3.3V regulator with adequate peak current for core plus I/O switching at 100 MIPS. Estimated: with moderate I/O loading, budget on the order of 100-200 mA total; verify against the datasheet electrical characteristics tables for your exact peripheral configuration rather than relying on this estimate. Add a 10uF bulk capacitor near the regulator output and follow Microchip's power-disconnect/brown-out settings guidance (BOR enabled) so PWM outputs tri-state safely during supply sags in motor drive designs.
Three frequent mistakes when migrating to dsPIC33CK from older 33F/33EP families: (1) the ADC core architecture changed - sampling requires explicit trigger configuration, best driven from PWM triggers for deterministic control loops; (2) the on-chip op-amps have configurable gain and must be routed to ADC channels in software - verify the analog routing diagram in the datasheet before committing pin assignment; (3) the T suffix means tape-and-reel - when quoting substitutes, confirm the packaging variant matches your pick-and-place reel requirements.
Compliance Information
RoHS compliance and lead-free finish consistent with Microchip /I grade UQFN packaging; exact REACH, halogen-free, and conflict-minerals declarations should be confirmed on the Microchip product page compliance portal.
