DSPIC33FJ64MC510AT-I/PT - 16-bit DSC, 40 MIPS, 64KB Flash | Microchip
MPN: DSPIC33FJ64MC510AT-I/PT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $7.45 | $7.45 |
| 10 | $6.78 | $67.80 |
| 100 | $5.94 | $594.00 |
| 500 | $5.32 | $2,660.00 |
| 1,000 | $4.85 | $4,850.00 |
DSPIC33FJ64MC510AT-I/PT Overview
A digital signal controller is a hybrid device that merges the deterministic interrupt latency and peripheral set of a microcontroller with the multiply-accumulate (MAC) DSP engine of a digital signal processor. In the power-management hierarchy, the DSC sits between general-purpose MCUs (such as the PIC24) and standalone DSPs, making it the preferred controller class for closed-loop control systems such as motor drives and switching power supplies where both fast math and rich peripherals are required.
Key features include a 16-bit modified Harvard architecture with a DSP instruction set (40-bit wide accumulators, single-cycle MAC, dual operand fetch), 8 DMA channels for data-intensive peripheral transfers, 9 timers, and 4 serial I/O ports. The motor-control periphery includes dedicated PWM modules with complementary outputs, dead-time insertion, and ADC with simultaneous multi-channel sampling, which are essential for field-oriented control of three-phase motors.
The device executes at up to 40 MIPS from an internal fast RC oscillator with PLL or an external crystal, eliminating the need for precision clock components in many cost-sensitive drives. Flash program memory is rated for in-circuit self-programming, allowing firmware field updates and bootloader deployment. The CMOS process yields low active power consumption, and a wide operating voltage window of 3.0V to 3.6V tolerates noisy industrial supply rails with simple 3.3V regulation.
Typical applications include brushless DC (BLDC), permanent-magnet synchronous (PMSM), single and 3-phase induction, and switched reluctance motor control; digital power supplies such as LLC and totem-pole PFC stages; solar inverters; and uninterruptible power supplies. The dedicated motor-control PWM and fast ADC make this part especially well suited to sensorless FOC algorithms executing at 10-20 kHz control-loop rates.
For design, budget the ADC sampling to align with the PWM period trigger to minimize jitter, and place the controller within a few centimeters of gate drivers to keep PWM edges clean. The TQFP-100 offers 85 general-purpose I/O, providing headroom for communication, protection, and sensing functions on one footprint.
This page synthesizes distributor availability, drop-in same-package alternatives, comparison data, and practical design guidance not found in the manufacturer datasheet.
Drop-in alternatives for DSPIC33FJ64MC510AT-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 DSPIC33FJ64MC510AT-I/PT (same form factor and footprint) — differing in Package, RoHS Status, Operating Temperature, Core Architecture, Packaging.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33FJ64MC510A-I/PT
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33FJ256MC510T-I/PF
✅ Drop-In✓ In Stock
$6.65 / Unit
View Datasheet →DSPIC33FJ256GP510T-I/PT
✅ Drop-In✓ In Stock
$6.95 / Unit
View Datasheet →DSPIC33FJ64GS610T-I/PT
✅ Drop-In✓ In Stock
$5.5 / Unit
View Datasheet →DSPIC33FJ128MC510-I/PT
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33FJ64MC510AT-I/PT Maximum Ratings & Electrical Characteristics
| Core Architecture | 16-bit dsPIC33F RISC with DSP engine |
| Maximum Clock Frequency | 40 MHz (40 MIPS) |
| Program Flash Memory | 64 KB (64K x 8) |
| Data RAM | 8 KB |
| Supply Voltage Range | 3.0 V to 3.6 V |
| DMA Channels | 8 |
| Timers | 9 |
| Serial I/O Ports | 4 |
| Package | 100-TQFP (12x12 mm) |
| Mounting Type | Surface Mount |
| Operating Temperature | -40C to +85C (I grade) |
| Technology | CMOS |
| Application Focus | Motor Control / Digital Power DSC |
| Pin Count | 100 |
| Packaging | Tape & Reel (T/R) |
| RoHS Status | RoHS compliant |
| Migration Path | Seamless migration to PIC24 MCUs and dsPIC30F DSC |
DSPIC33FJ64MC510AT-I/PT 100-tqfp (12x12 mm) Pin Configuration Guide
Pin configuration for DSPIC33FJ64MC510AT-I/PT (100-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 DSPIC33FJ64MC510AT-I/PT.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33FJ64MC510AT-I/PT is suitable for 6 applications: BLDC/PMSM Motor Control Drives, Switch-Mode Power Supplies and Digital Power, Solar Inverters and Renewable Energy Conversion, Uninterruptible Power Supplies (UPS), Industrial Automation and Robotics, Automotive-Adjacent and e-Mobility Subsystems (Non-AEC).
BLDC/PMSM Motor Control Drives
The DSPIC33FJ64MC510AT-I/PT is purpose-built for sensorless field-oriented control of brushless DC and permanent-magnet synchronous motors. Its dedicated motor-control PWM module generates complementary outputs with hardware dead-time insertion, while the high-speed ADC can sample phase currents simultaneously, synchronized to the PWM period to eliminate switching noise from current measurements. Running the FOC current loop at 10-20 kHz consumes only a fraction of the 40 MIPS budget, leaving headroom for position observers and communication. The 8 DMA channels offload ADC result transfers without CPU intervention, reducing control-loop jitter. The industrial -40C to +85C rating supports factory-floor and appliance environments directly.
Recommended
Switch-Mode Power Supplies and Digital Power
In digitally controlled SMPS topologies such as LLC converters, phase-shifted full bridges, and PFC stages, the DSPIC33FJ64MC510AT-I/PT provides the deterministic 40 MIPS control core, fast ADC, and PWM granularity needed for voltage- and current-mode feedback loops. The ADC is triggered directly by the PWM module, keeping sampling instants phase-locked to the switching period, which is critical for stable average-current-mode control. DMA moves ADC results to RAM autonomously, and the DSP MAC engine executes compensator math in few cycles. Supply operation from a 3.3V rail with 3.0-3.6V tolerance simplifies bias generation on densely packed power boards.
Recommended
Solar Inverters and Renewable Energy Conversion
Grid-tied and off-grid solar inverters require simultaneous execution of maximum-power-point tracking (MPPT), grid synchronization, and current control. The DSPIC33FJ64MC510AT-I/PT handles these tasks on its 40 MIPS core: the DSP engine computes MPPT algorithms and PLL grid-synchronization routines, while multiple ADC channels sampled via DMA monitor PV voltage/current and grid voltage/current in parallel. The 9 timers support staged PWM switching of DC-DC boost and DC-AC inverter bridges with interlocked sequencing. Its 64KB flash accommodates complete inverter firmware including protection, communication, and logging, with the TQFP-100 providing sufficient I/O for relays, sensors, and isolation interfaces.
Recommended
Uninterruptible Power Supplies (UPS)
Line-interactive and double-conversion UPS designs benefit from the DSPIC33FJ64MC510AT-I/PT's combination of high-resolution PWM, fast multi-channel ADC sampling of input/output voltage and battery current, and hardware DSP math for waveform generation and RMS computation. The controller synthesizes a sinusoidal output reference in real time using its MAC engine, while DMA-serviced ADC streams keep feedback loops running at tens of kilohertz without CPU loading. Multiple timers coordinate transfer-switch timing between mains and inverter paths within strict phase windows. The 100-pin package supports redundant sensor channels, battery management I/O, and communication ports (UART, SPI, I2C) on a single controller.
Recommended
Industrial Automation and Robotics
In automation equipment such as robotic joint controllers, CNC servo axes, and conveyor motion systems, the DSPIC33FJ64MC510AT-I/PT acts as the motion control processor executing position, velocity, and current cascade loops. Its 4 serial I/O ports allow concurrent RS-485 fieldbus, encoder interface (via SPI), and diagnostics channels. The 85 general-purpose I/O lines of the TQFP-100 interface limit switches, safety interlocks, and auxiliary actuators without an I/O expander. The 8 DMA channels sustain high-rate encoder and ADC data acquisition, while the industrial temperature grade and 3.3V operation integrate cleanly into standard 24V industrial panels protected by appropriate level-shifting.
Recommended
Automotive-Adjacent and e-Mobility Subsystems (Non-AEC)
The DSPIC33FJ64MC510AT-I/PT is used in off-road, agricultural, and light e-mobility subsystems such as pump/fan controllers, battery chargers, and small traction drives where full AEC-Q100 qualification is not mandated. Its 40 MIPS core runs sensorless motor algorithms with the dedicated PWM and ADC peripherals, and the -40C to +85C industrial rating covers most under-hood-adjacent temperature zones with proper thermal placement. Designers should note this grade is 'I' (industrial), not automotive qualified; for AEC-Q100 requirements, select the appropriate Microchip automotive dsPIC variant. The 64KB flash supports complete charger or pump control firmware with CAN-style communication implemented over UART/SPI bridges.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33FJ64MC510AT-I/PT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33FJ64MC510A-I/PT | DSPIC33FJ256MC510T-I/PF | DSPIC33FJ256GP510T-I/PT | DSPIC33FJ64GS610T-I/PT |
|---|---|---|---|---|---|
| Package | 100-TQFP (12x12 mm) | 100-TQFP - same | 100-TQFP - same | 100-TQFP - same | 100-TQFP - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core / Performance | 16-bit DSC, 40 MIPS | 16-bit DSC, 40 MIPS | 16-bit DSC, 40 MIPS | 16-bit DSC, 40 MIPS | 16-bit DSC, 40 MIPS |
| Program Flash | 64 KB | 64 KB | 256 KB | 256 KB | 64 KB |
| Data RAM | 8 KB | 8 KB | 16 KB | 16 KB | 8 KB |
| Supply Voltage | 3.0 V to 3.6 V | 3.0 V to 3.6 V | 3.0 V to 3.6 V | 3.0 V to 3.6 V | 3.0 V to 3.6 V |
| Operating Temperature | -40C to +85C (I grade) | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C |
| Peripheral Focus | Motor-control PWM + ADC (MC family) | Motor-control PWM + ADC (MC, A-revision) | Motor-control PWM + ADC (MC family) | General purpose (GP family) | Digital power PWM + comparators (GS family) |
| DMA Channels | 8 | 8 | 8 | 8 | 8 |
| Best Fit Application | Motor control / industrial drives | Motor control (current production) | Feature-rich motor control, large firmware | General embedded control with DSP math | Digital power supplies, inverters |
Key Differentiators
- Dedicated motor-control PWM with dead-time insertion (vs DSPIC33FJ256GP510T-I/PT)
- Optimized cost-to-memory ratio for motor control firmware (vs DSPIC33FJ256MC510T-I/PF)
- Current-production A-revision silicon availability (vs DSPIC33FJ64MC510A-I/PT)
- Motor-control ecosystem vs digital-power specialization (vs DSPIC33FJ64GS610T-I/PT)
Design Notes
Place 0.1uF ceramic decoupling capacitors at every VDD/VSS pair of the TQFP-100, routed with short, wide traces, plus a 4.7-10uF bulk capacitor near the device. Keep AVDD/AVSS on a separate filtered analog supply (ferrite bead plus 1uF) feeding the ADC reference path - sharing digital VDD with AVDD measurably degrades ADC noise performance in motor-control current sampling. Use a solid ground plane under the package and connect all VSS pins to it directly. This is standard practice per the Microchip dsPIC33F family reference layout guidance.
Trigger the ADC from the PWM module at the center of the low-side PWM on-time so phase-current sampling occurs away from switching edges; sampling during a switch transition injects noise into current-feedback loops and can destabilize sensorless FOC observers at 10-20 kHz loop rates. Route PWM outputs to gate drivers with series resistors (22-47 ohm typical) to control edge ringing, and keep ADC input traces short, guarded, away from PWM and gate-drive traces. Estimated: with a 40 MIPS core, a 10 kHz FOC loop consumes roughly 30-50% CPU, leaving margin for observers and communication.
Do not exceed the 3.6V maximum VDD - dsPIC33F devices are not 5V tolerant; use level shifting on any 5V-signal interfaces. Configure configuration words (FOSC, FICD, FWDT) deliberately before first programming: incorrect oscillator settings are the most common cause of a 'dead' board. Migrating between original and 'A' revisions (e.g., DSPIC33FJ64MC510A) requires checking the respective device errata - silicon differences exist in peripheral edge cases. When substituting the 256KB variants on an existing 64KB PCB, update the linker script and verify all used pins are remapped identically in the larger device's datasheet pinout tables.
Compliance Information
RoHS compliance confirmed via JLCPCB and distributor listings. 'I' suffix denotes industrial temperature grade (-40C to +85C); this is not an automotive-qualified (AEC-Q100) part.
