DSPIC33CK64MP208T-I/PT - 16-bit 100MHz DSC 64KB Flash | Microchip
MPN: DSPIC33CK64MP208T-I/PT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $23.48 | $23.48 |
| 10 | $21.13 | $211.30 |
| 100 | $19.5 | $1,950.00 |
| 500 | $17.85 | $8,925.00 |
| 1,000 | $16.44 | $16,440.00 |
DSPIC33CK64MP208T-I/PT Overview
A Digital Signal Controller combines the deterministic, interrupt-driven behavior of a microcontroller with the mathematical throughput of a DSP. Within the power-management hierarchy, the dsPIC33CK family sits alongside general-purpose MCUs and dedicated DSPs, occupying the real-time embedded control niche where fast control loops, such as those in switch-mode power supplies and motor drives, must execute within microseconds. The dsPIC33CK core achieves this with a pipelined 16-bit architecture, DSP multiply-accumulate instructions, and 40-bit accumulators for high-precision filtering.
Key features include the 100 MHz core enabling sub-100 ns interrupt latency for tight control loops, 64 KB of self-programmable Flash for firmware flexibility, 8 KB of RAM for buffering and state variables, and rich analog integration: three on-chip op-amps and three comparators reduce external component count in current-sense and protection circuits. The Peripheral Trigger Generator autonomously sequences ADC sampling and PWM updates without CPU intervention, offloading the processor in time-critical loops.
Technically, the device pairs high-resolution PWM outputs with fast ADCs, a combination purpose-built for digital power conversion. Barrel shifting, DSP MAC instructions, and DMA-driven data movement allow efficient execution of control algorithms such as PID, notch filters, and power-factor-correction loops. Functional Safety documentation support suits designs targeting regulated industrial and automotive-adjacent markets.
Typical applications include digital switched-mode power supplies (AC-DC, DC-DC, totem-pole PFC), brushless DC and PMSM motor control for industrial drives, and advanced sensing with inline current and voltage measurement. The on-chip op-amps condition shunt-current signals directly, while comparators implement cycle-by-cycle overcurrent protection without software latency.
A key design consideration: at 100 MHz with all analog peripherals active, careful PCB layout of the analog ground plane and ADC reference decoupling is essential to achieve specified accuracy; budget Flash headroom for FuSa self-test routines.
This page synthesizes distributor pricing, same-brand drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.
Drop-in alternatives for DSPIC33CK64MP208T-I/PT — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33CK32MP208T-I/PT
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33CK64MP208T-E/PT
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33CK64MP108T-I/PT
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33CK64MP208T-I/PT Maximum Ratings & Electrical Characteristics
| Core Architecture | 16-bit dsPIC DSC |
| Maximum CPU Frequency | 100 MHz |
| Flash Program Memory | 64 KB (64K x 8) |
| RAM | 8 KB |
| Supply Voltage | 3.3 V |
| Package | 80-TQFP (12 x 12 mm) |
| On-chip Operational Amplifiers | 3 |
| On-chip Comparators | 3 |
| Peripheral Trigger Generator (PTG) | Yes |
| Functional Safety Support | Yes (FuSa) |
| DSP Features | DSP instruction set, 40-bit accumulators, barrel shifter |
| Operating Temperature Range | -40C to +85C (I grade) |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
| Packaging | Tape and Reel (T suffix) |
| Product Family | dsPIC33CK64MP208 |
DSPIC33CK64MP208T-I/PT 80-tqfp (12 x 12 mm) Pin Configuration Guide
Pin configuration for DSPIC33CK64MP208T-I/PT (80-tqfp (12 x 12 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 DSPIC33CK64MP208T-I/PT.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33CK64MP208T-I/PT is suitable for 6 applications: Digital Switch-Mode Power Supplies, Brushless DC and PMSM Motor Control, Advanced Current and Voltage Sensing, Wireless Power Transfer and Charging Control, LED Drivers and Smart Lighting, Functional-Safety Industrial Control Nodes.
Digital Switch-Mode Power Supplies
The DSPIC33CK64MP208T-I/PT fits digital power conversion because its 100 MHz core closes voltage and current loops within a single switching period even at 300-500 kHz, and its three comparators execute cycle-by-cycle overcurrent protection in hardware, bypassing software latency entirely. In a totem-pole PFC or LLC converter, the Peripheral Trigger Generator chains ADC sampling to PWM events autonomously, so the ADC samples mid-ramp exactly when the average current is valid, improving measurement accuracy without CPU intervention. The three on-chip op-amps condition shunt-resistor current feedback directly, cutting external amplifier count and board area. The trade-off versus dedicated digital power controllers is that firmware development effort is higher, but the same chip can implement multiple converter topologies across a product family.
Recommended
Brushless DC and PMSM Motor Control
For field-oriented control (FOC) of BLDC and PMSM motors, the DSPIC33CK64MP208T-I/PT offers a strong parameter match: the 100 MHz core executes Clarke/Park transforms and current-loop PI regulation at 20-50 kHz loop rates with ample margin, and the DSP multiply-accumulate instruction set keeps the trigonometric and filter math deterministic. Three comparators provide hardware-level overcurrent trip for the power stage, while the three op-amps amplify low-side shunt currents for phase-current reconstruction. High-resolution PWM with dead-time insertion drives six MOSFET gates via a gate driver. In industrial servo drives, HVAC blowers, and e-bike controllers, this reduces BOM cost by eliminating external current-sense amplifiers. The main consideration is allocating Flash headroom for position-observer and safety self-test code within the 64 KB budget.
Recommended
Advanced Current and Voltage Sensing
The DSPIC33CK64MP208T-I/PT serves advanced sensing nodes where precision analog acquisition meets local decision-making. Its integrated op-amps can be configured as programmable-gain amplifiers for shunt-based current measurement, and the fast ADC samples synchronized to the PTG trigger for repeatable, jitter-free sampling instants. Because the 16-bit core processes readings locally - running RMS computation, windowing, or threshold logic - the device can report conditioned values over UART/CAN rather than raw samples, offloading a host controller. This suits inline current monitors in industrial equipment, battery-pack sensing front ends, and power-quality submetering. Design consideration: keep the ADC reference (VREF) decoupled with low-ESR ceramics and route analog returns on a quiet ground island to preserve effective-number-of-bits performance at high sample rates.
Recommended
Wireless Power Transfer and Charging Control
In wireless power transmitter and receiver control, the DSPIC33CK64MP208T-I/PT manages frequency tracking, foreign-object detection, and power-negotiation protocols simultaneously. The 100 MHz core adjusts the driving frequency in a closed loop to maintain resonance as coupling changes, while three comparators implement fast overcurrent and overvoltage trips required by wireless power safety schemes. The Peripheral Trigger Generator coordinates ADC measurement of coil current and voltage phase for resonance detection without CPU-timed sampling jitter. Functional Safety (FuSa) support aids compliance documentation for consumer charging products. A practical trade-off: the 64 KB Flash must accommodate the protocol stack plus control firmware, so teams implementing full Qi-class stacks should evaluate the 128 KB or 256 KB dsPIC33CK family members; the MP208 suits proprietary or simplified protocols comfortably.
Recommended
LED Drivers and Smart Lighting
For high-power LED drivers, the DSPIC33CK64MP208T-I/PT implements constant-current regulation with the 100 MHz core updating PWM duty within each switching cycle, achieving fast transient response during dimming steps. Three comparators enable hardware overcurrent shutdown for the LED string, and the op-amps amplify current-shunt signals for accurate average-current control. Dimming can be implemented via PWM or analog (CCR) methods with high resolution thanks to the fine PWM granularity at 100 MHz. In industrial luminaires and horticultural lighting, one DSC can drive multiple channels and handle DALI or 0-10 V interface decoding concurrently. Design tip: dedicate one comparator channel to the per-string protection path with minimum propagation delay, and keep the sensing shunt Kelvin-connected to preserve regulation accuracy below 2% setpoint error.
Recommended
Functional-Safety Industrial Control Nodes
The DSPIC33CK64MP208T-I/PT is positioned by Microchip for applications requiring Functional Safety (FuSa) compliance, making it appropriate for industrial control nodes where diagnostics and fail-safe behavior are required by end-system standards. In practice, the DSC runs safety self-test routines on Flash, RAM, clock, and analog peripherals while concurrently performing its control function; the 64 KB Flash budget must be shared between application code and these self-test libraries, which is the key capacity trade-off versus larger 128/256 KB family members. Three comparators allow independent hardware protection channels separate from the software path, supporting diagnostic diversity. Typical deployments include safety-related motor starter logic, power-supply supervisory control, and automated-test actuation nodes. Design teams should obtain Microchip's FuSa collateral and follow the safety manual's configuration recommendations from project start.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33CK64MP208T-I/PT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33CK32MP208T-I/PT | DSPIC33CK64MP208T-E/PT | DSPIC33CK64MP108T-I/PT |
|---|---|---|---|---|
| Package | 80-TQFP (12 x 12 mm) | 80-TQFP (12 x 12 mm) - same | 80-TQFP (12 x 12 mm) - same | 80-TQFP (12 x 12 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| CPU Frequency | 100 MHz | 100 MHz | 100 MHz | 100 MHz |
| Flash Memory | 64 KB | 32 KB (-50%) | 64 KB | 64 KB |
| RAM | 8 KB | 8 KB | 8 KB | 8 KB |
| On-chip Op-Amps | 3 | 3 | 3 | 0 |
| Comparators | 3 | 3 | 3 | 3 |
| Temperature Range | -40C to +85C | -40C to +85C | -40C to +125C | -40C to +85C |
| Functional Safety (FuSa) | Yes | Yes | Yes | Yes |
Key Differentiators
- Three integrated op-amps eliminate external current-sense amplification (vs DSPIC33CK64MP108T-I/PT)
- Extended-temperature drop-in option for harsh environments (vs DSPIC33CK64MP208T-E/PT)
- 64 KB Flash headroom versus the smaller-footprint family member (vs DSPIC33CK32MP208T-I/PT)
Design Notes
Place the 0.1 uF VDD decoupling capacitors within 2 mm of each VDD/VSS pin pair on the 80-TQFP, with at least one bulk 4.7-10 uF ceramic near the package. The 12 x 12 mm TQFP exposes no thermal pad, so all heat exits through the leads; provide solid VSS planes on layers 2 and 3 of a 4-layer board for both thermal relief and return-current integrity. Route the three op-amp inputs as short Kelvin traces directly to the current-shunt resistors; do not share these traces with digital signals.
Budget the 64 KB Flash carefully: FuSa self-test libraries, bootloader, and communication stacks can consume 30-50% of program memory. If your control algorithm plus protocol stack exceeds roughly 40 KB, migrate to a 128 KB or 256 KB dsPIC33CK family member before layout freeze, since the MP208 footprint does not exist in higher-memory variants with identical pinout. Also confirm the exact comparator and op-amp pin assignments in the datasheet pin diagrams - these differ between MP1xx and MP2xx variants despite the shared TQFP-80 footprint.
Use the Peripheral Trigger Generator to trigger ADC sampling synchronized to PWM center or midpoint rather than sampling from software timers; this eliminates sampling jitter that would otherwise inject noise into control-loop feedback. Estimated: at 100 MHz, a 20 kHz FOC current loop has 5000 core cycles per iteration - reserve headroom by keeping interrupt service routines under 3000 cycles to avoid loop overrun at maximum switching frequency. Verify actual PWM resolution at your switching frequency from the datasheet timing tables.
Compliance Information
RoHS compliance per standard Microchip product offering for the dsPIC33CK family; confirm exact REACH and halogen-free status on the Microchip product page environmental datasheet.
