DSPIC33CK64MP505T-I/PT - 100MHz 64KB DSC 48-TQFP | Microchip
MPN: DSPIC33CK64MP505T-I/PT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $2.12 | $2.12 |
| 10 | $1.95 | $19.50 |
| 100 | $1.75 | $175.00 |
| 500 | $1.58 | $790.00 |
| 1,000 | $1.4 | $1,400.00 |
DSPIC33CK64MP505T-I/PT Overview
A digital signal controller combines the compute power of a DSP with the peripheral set and ease of use of a microcontroller. Within the power-management hierarchy, the DSC sits above generic MCUs and below application-specific DSPs, making it the standard choice when fast control loops (switching regulators, motor drives) must execute deterministic algorithms such as PI/PID control at hundreds of kilohertz. The dsPIC33CK family belongs to the broader 16-bit dsPIC product line from Microchip.
Key features of the MP505 variant include three integrated operational amplifiers (op-amps) for direct current-sense conditioning, three high-speed analog comparators, a 12-bit ADC with high sampling capability, and a Peripheral Trigger Generator (PTG) for autonomous sequenced operation. The controller implements CAN Flexible Data-rate (CAN-FD) for modern in-vehicle and industrial networking, plus multiple 16-bit high-resolution PWM modules purpose-built for digital power conversion.
Architecturally, the dsPIC33CK core uses a modified Harvard architecture with DSP engine support, single-cycle MAC, dual operands, and barrel shifting. The family datasheet notes support for up to 100 MIPS operation from a 3.0V to 3.6V supply, dual-partition flash with ECC and live update capability, and Memory Built-In Self-Test (MBIST) on data SRAM, features that support functional-safety oriented designs (DigiKey lists this family as Functional Safety (FuSa) capable).
Typical applications include digital power supplies ( LLC, totem-pole PFC ), BLDC/PMSM/ACIM motor control, automotive and industrial CAN-FD nodes, and advanced sensing systems where the on-chip op-amps eliminate external analog front-end components.
Design consideration: the core requires a 3.0V to 3.6V rail, so plan a 3.3V LDO or buck with low ripple; the 7x7 mm TQFP exposes an industry-standard footprint requiring no special thermal design at typical operating currents.
This page synthesizes distributor pricing data, drop-in alternatives, design guidance, and FAQ content not found together in the manufacturer datasheet.
Drop-in alternatives for DSPIC33CK64MP505T-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 DSPIC33CK64MP505T-I/PT (same form factor and footprint) — differing in Core, Operating Temperature, Package, PWM, CAN.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33CK64MP505T-E/PT
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33CK64MP505-I/PT
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$3.15 / Unit
View Datasheet →DSPIC33CK64MP505T-I/PTVAO
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33CK32MP505-I/PT
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$2.04 / Unit
View Datasheet →DSPIC33CK64MP505T-I/PT Maximum Ratings & Electrical Characteristics
| Core | dsPIC33CK 16-bit DSC |
| Core Architecture | Modified Harvard, DSP engine |
| Maximum Clock Frequency | 100 MHz (100 MIPS) |
| Program Memory Size | 64 KB Flash |
| Data RAM Size | 8 KB SRAM |
| Supply Voltage Range | 3.0 V to 3.6 V |
| Integrated Op-Amps | 3 |
| Analog Comparators | 3 |
| CAN Interface | CAN-FD |
| Peripheral Trigger Generator | Yes (PTG) |
| Package | 48-TQFP (7 x 7 mm) |
| Pin Count | 48 |
| Mounting Type | Surface Mount |
| Operating Temperature | -40C to +85C (I grade) |
| Special Features | High-resolution PWM, PTG, 3 OpAmp, 3 Comp, CAN-FD |
| Packaging | Tape & Reel (T suffix) |
| Functional Safety | FuSa supported family (per DigiKey listing) |
DSPIC33CK64MP505T-I/PT 48-tqfp (7 x 7 mm) Pin Configuration Guide
Pin configuration for DSPIC33CK64MP505T-I/PT (48-tqfp (7 x 7 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 DSPIC33CK64MP505T-I/PT.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33CK64MP505T-I/PT is suitable for 6 applications: Digital Power Supplies, BLDC / PMSM Motor Control, Automotive CAN-FD Nodes, Advanced Sensing and Control, High-Efficiency LED Drivers, Industrial Automation and Control Panels.
Digital Power Supplies
The DSPIC33CK64MP505T-I/PT is purpose-built for digitally controlled power converters such as LLC resonant converters, totem-pole PFC stages, and synchronous buck regulators. Its high-resolution PWM peripheral delivers sub-nanosecond effective duty-cycle resolution, which is essential for phase management and frequency control in resonant topologies. The three on-chip op-amps condition current-shunt feedback without external amplifier ICs, while the three fast comparators implement cycle-by-cycle overcurrent limiting in hardware, protecting the power stage within a single switching period even if firmware stalls. Running deterministic PI control loops at 100 MHz, the DSC comfortably services switching frequencies in the several-hundred-kHz range with margin. Place the PTG in charge of ADC sampling and PWM update sequencing for fully autonomous loop timing with minimal CPU interrupt load.
Recommended
BLDC / PMSM Motor Control
Sensorless and sensored field-oriented control (FOC) of brushless DC, PMSM, and AC induction motors is a flagship application for the dsPIC33CK family per Microchip's product positioning. The DSPIC33CK64MP505T-I/PT supplies center-aligned, high-resolution PWM for three-phase inverters with narrow dead-time control, improving inverter efficiency and reducing torque ripple. On-chip op-amps amplify low-side shunt currents, and the 12-bit ADC can be triggered precisely at PWM mid-points for clean phase-current sampling, avoiding the switching-noise-corrupted readings that plague asynchronous sampling. Fast analog comparators provide hardware-level fault shutdown for overcurrent events independent of software latency. With 100 MIPS of DSP headroom, advanced observers and MTPA algorithms execute in real time while CAN-FD reports diagnostics on industrial or automotive networks.
Recommended
Automotive CAN-FD Nodes
The integrated CAN-FD module makes the DSPIC33CK64MP505T-I/PT suitable for automotive and industrial network nodes requiring up to 64-byte payloads and faster arbitration/data phases than classical CAN. DigiKey categorizes this family under Functional Safety (FuSa) support, and the E-grade temperature option (DSPIC33CK64MP505T-E/PT) extends qualification to -40C to +125C for under-hood and powertrain-adjacent placements. Typical nodes include pump/fan controllers, actuator drivers, and sensor aggregation units where the DSC's op-amps and comparators handle local analog loops while CAN-FD communicates with a vehicle gateway. The dual-partition flash with ECC and Live Update, per the family datasheet, enables field-safe firmware updates over the vehicle network - a key requirement for maintainable automotive ECUs.
Recommended
Advanced Sensing and Control
The Peripheral Trigger Generator (PTG) is the differentiator for advanced sensing applications: it autonomously sequences ADC conversions, triggers, and PWM actions, freeing the CPU for signal processing and decision logic. In applications such as ultrasonic flow meters, capacitive sensing front ends, and multi-channel sensor fusion, the DSPIC33CK64MP505T-I/PT can sample multiple analog channels deterministically while its DSP engine applies filters (IIR/FIR) and compensation algorithms in real time. The three integrated op-amps buffer weak sensor signals close to the source, reducing external component count and noise pickup on the PCB. The 8 KB RAM holds multiple filtering buffers, and CAN-FD or UART/SPI/I2C links export processed results. Memory Built-In Self-Test (MBIST) on SRAM, cited in the family datasheet, supports safety-oriented sensing designs.
Recommended
High-Efficiency LED Drivers
Digitally controlled LED drivers for stage lighting, industrial luminaires, and automotive lighting benefit from the DSPIC33CK64MP505T-I/PT's high-resolution PWM and PTG. The HR PWM enables dimming frequency and current-regulation loop bandwidths that eliminate visible flicker while maintaining accurate average current control through the ADC + comparator fast-limit path. The on-chip op-amps amplify voltage across a current-sense resistor to close the constant-current loop without external amplifiers, and the CAN-FD interface supports DALI-over-CAN or networked lighting architectures used in smart-building and entertainment systems. Running the control loop at 100 MHz leaves DSP capacity for multi-string current balancing, color mixing algorithms, and temperature-compensated output derating based on an NTC thermistor read through another ADC channel.
Recommended
Industrial Automation and Control Panels
In industrial automation, the DSPIC33CK64MP505T-I/PT serves as a compact real-time controller for pumps, heaters, valves, and actuators, where it closes fast local control loops while connecting to higher-level systems via CAN-FD. The 48-pin 7x7 mm TQFP balances I/O availability (multiple UART, SPI, I2C, and PWM channels) with a hand-solderable, reworkable footprint that survives industrial assembly. The -40C to +85C industrial temperature grade (I suffix) covers cabinet environments, and the 3.0V-3.6V supply integrates cleanly with standard industrial 3.3V logic rails. The PTG enables autonomous pulse trains for stepper or valve driving with zero CPU overhead, and firmware assets are portable across the dsPIC33CK family, letting designers scale flash from 32 KB to 256 KB within the same toolchain (MPLAB X + XC16) as products diversify.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33CK64MP505T-I/PT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33CK64MP505T-E/PT | DSPIC33CK64MP505-I/PT | DSPIC33CK32MP505-I/PT |
|---|---|---|---|---|
| Package | 48-TQFP (7x7 mm) | 48-TQFP (7x7 mm) - same | 48-TQFP (7x7 mm) - same | 48-TQFP (7x7 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core Speed | 100 MHz (100 MIPS) | 100 MHz (100 MIPS) | 100 MHz (100 MIPS) | 100 MHz (100 MIPS) |
| Program Flash | 64 KB | 64 KB | 64 KB | 32 KB |
| RAM | 8 KB | 8 KB | 8 KB | 8 KB |
| Operating Temperature | -40C to +85C (I) | -40C to +125C (E) | -40C to +85C (I) | -40C to +85C (I) |
| Integrated Op-Amps / Comparators | 3 / 3 | 3 / 3 | 3 / 3 | 3 / 3 |
Key Differentiators
- Integrated analog front end (vs DSPIC33CK64MC103T-I/M5)
- 100 MHz single-core performance with DSP engine (vs DSPIC33CH64MP506T-I/PT)
- Extended-temperature drop-in availability (vs DSPIC33CK64MP505T-E/PT)
Design Notes
Supply the core from a clean 3.0V-3.6V rail; 3.3V LDO or buck output is standard. Decouple every VDD pin pair with 0.1 uF ceramic capacitors placed within 2 mm of the pins, plus one bulk 10 uF capacitor near the device. Because the on-chip op-amps and ADC reference share the analog supply, segregate the AVDD pin with an RC filter (e.g., ferrite bead plus 1 uF) from the digital rail to preserve ADC accuracy in digital power designs.
Route the high-resolution PWM outputs to gate drivers as short, matched traces with a solid ground plane beneath to minimize overshoot into IGBT/MOSFET gates. Keep the current-sense op-amp inputs as Kelvin connections directly to the shunt resistor; the on-chip op-amp gain magnifies any layout-induced offset. The exposed TQFP-48 requires no thermal pad, but use standard 4-mil pitch land pattern per IPC-7351 conventions for reliable reflow.
Three frequent mistakes: (1) driving 5V logic into I/O pins - the 3.0V-3.6V supply means pins are not 5V tolerant, so add level shifters; (2) ignoring MCLR programming voltage requirements when designing the ICSP header - reserve the standard 5-pin programming header even in production boards; (3) assuming the temperature grade from the package alone - the I suffix (-40C to +85C) and E suffix (-40C to +125C) are electrically identical dies but qualification differs; select E grade for automotive/high-ambient designs.
Compliance Information
Standard Microchip production parts of this family are RoHS-compliant and lead-free per distributor listings; AEC-Q100 adherence is noted on the VAO variant listing from Microchip USA. REACH and halogen-free status not stated in provided data.
