DSPIC33FJ256MC510AT-I/PF - 16-bit 40 MIPS DSC 256KB Flash | Microchip
MPN: DSPIC33FJ256MC510AT-I/PF ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $7.95 | $7.95 |
| 10 | $7.2 | $72.00 |
| 100 | $6.55 | $655.00 |
| 500 | $6.15 | $3,075.00 |
| 1,000 | $5.8 | $5,800.00 |
DSPIC33FJ256MC510AT-I/PF Overview
A digital signal controller combines the computational architecture of a microcontroller (MCU) with the numeric acceleration of a digital signal processor (DSP). In the product hierarchy, the dsPIC33F family sits between general-purpose 16-bit PIC24 MCUs and dedicated DSPs, offering a RISC core modified with DSP instructions, dual operand fetch, and a hardware multiply-accumulate unit. This makes DSCs ideal for closed-loop control loops that need both deterministic real-time behavior and math-intensive algorithms.
Key features of the DSPIC33FJ256MC510AT-I/PF include the 16-bit dsPIC33F RISC core rated at 40 MIPS, 256KB (256K x 8) of self-programmable Flash, 16KB of SRAM, 8 DMA channels, 9 timers, and 4 serial I/O modules. The MC (Motor Control) variant integrates dedicated peripherals for three-phase inverter drive, making it a strong fit for field-oriented control firmware.
Architecturally, the CMOS device employs a 3-stage pipeline with separate program and data buses (Harvard architecture), single-cycle MAC operations, and support for DSP multiply, divide, and bit-manipulation instructions. The core clock reaches 40 MHz, corresponding to the 40 MIPS rating.
Typical applications include brushless DC (BLDC) motor drive, single- and three-phase induction motor control, switched reluctance motor systems, uninterruptible power supplies (UPS), and digital power conversion - use cases Microchip explicitly targets with the dsPIC33F MC family. Digital filtering and sensor fusion tasks in industrial automation also benefit from the on-chip DSP engine.
Design consideration: the 3V-3.6V supply window requires a clean LDO or buck-derived rail; leave adequate decoupling on all VDD/VDDCORE pairs, and verify Flash programming voltage requirements during in-circuit programming with tools like PICkit or ICD headers.
This page synthesizes distributor pricing, drop-in alternatives, pin-package options, and motor-control design notes not consolidated in the manufacturer datasheet.
Drop-in alternatives for DSPIC33FJ256MC510AT-I/PF — 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 DSPIC33FJ256MC510AT-I/PF (same form factor and footprint) — differing in Operating Temperature, Package, Core Architecture, RoHS Status, Maximum CPU Speed.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33FJ256MC510A-I/PF
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33FJ256MC510-I/PF
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33FJ256MC510ATE/PF
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33FJ256MC510ATH/PF
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33FJ128MC510A-I/PF
✅ Drop-In✓ In Stock
$8.1 / Unit
View Datasheet →DSPIC33FJ256GP510T-I/PT
✅ Drop-In✓ In Stock
$6.95 / Unit
View Datasheet →DSPIC33FJ256MC510AT-I/PF Maximum Ratings & Electrical Characteristics
| Core Architecture | 16-bit dsPIC33F RISC |
| Maximum CPU Speed | 40 MIPS (40 MHz) |
| Program Memory Size | 256 KB (256K x 8) Flash |
| RAM Size | 16 KB |
| Supply Voltage (Vdd) | 3 V to 3.6 V |
| DMA Channels | 8 |
| Timers | 9 |
| Serial I/O Modules | 4 |
| Package | 100-TQFP (14x14 mm), 0.5 mm pitch |
| Mounting Type | Surface Mount |
| Operating Temperature | -40C to +85C (Industrial, I) |
| Technology | CMOS |
| Packaging | Tape & Reel (T) |
| Product Family | dsPIC33FJ256MC510A (Motor Control DSC) |
| RoHS Status | RoHS3 Compliant |
| Typical Applications | BLDC, induction, and switched reluctance motor control; UPS; digital power |
DSPIC33FJ256MC510AT-I/PF 100-tqfp (14x14 mm), 0.5 mm pitch Pin Configuration Guide
Pin configuration for DSPIC33FJ256MC510AT-I/PF (100-tqfp (14x14 mm), 0.5 mm pitch 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 DSPIC33FJ256MC510AT-I/PF.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33FJ256MC510AT-I/PF is suitable for 6 applications: Brushless DC (BLDC) Motor Control, Single- and Three-Phase Induction Motor Drives, Uninterruptible Power Supplies (UPS), Switched Reluctance Motor (SRM) Drives, Industrial Automation and Sensor Fusion, Automotive Auxiliary Motor Systems.
Brushless DC (BLDC) Motor Control
The dsPIC33FJ256MC510AT-I/PF was designed by Microchip specifically for brushless DC motor drive. Its 40 MIPS 16-bit core executes field-oriented control (FOC) or sensorless trapezoidal algorithms with interrupt latency low enough for 20 kHz+ PWM current loops, while the DSP multiply-accumulate unit accelerates Clarke/Park transforms and PI calculations. With 9 timers and 8 DMA channels, ADC sampling and PWM update run without CPU intervention in the innermost loop. Firmware typically configures the motor-control PWM module for complementary outputs with dead time, samples phase currents each cycle, and closes the torque and speed loops in software. The 3V-3.6V supply keeps IO logic compatible with 3.3V gate drivers and isolators, and the -40C to +85C industrial grade covers factory and e-mobility environments.
Recommended
Single- and Three-Phase Induction Motor Drives
According to Microchip, the dsPIC33FJ256MC510A family directly supports single- and three-phase induction motor applications. Induction drives need V/f control or rotor-flux-oriented control with slip compensation - computationally demanding tasks the 40 MIPS core and DSP instruction set handle within the PWM period. The 256KB Flash stores sensorless estimator code, parameter identification routines, and communication stacks simultaneously, and the 16KB RAM buffers current/voltage sampling histories for flux observers. The 8 DMA channels offload ADC results, keeping the CPU free for control math, while the 9 timers provide PWM carriers, dead-time generation, and encoder capture. Industrial pumps, fans, compressors, and conveyor drives benefit from the industrial temperature rating and RoHS3-compliant 100-TQFP package suitable for conformal-coated power boards.
Recommended
Uninterruptible Power Supplies (UPS)
The Microchip product page lists UPS as a target application for the dsPIC33F Motor Control portfolio, and the MC510AT-I/PF fits the role well. A line-interactive or double-conversion UPS requires simultaneous inverter PWM generation, battery-charger control, and fast protection - all sharing one controller. The 40 MIPS throughput closes the inverter voltage loop at high carrier frequencies, the DSP engine runs harmonic compensation and RMS calculations, and the 9 timers generate the multiple PWM/SPWM carriers with dead time. 256KB Flash holds waveform tables, communication (CAN/RS-485) stacks, and bootloaders; the 8 DMA channels stream ADC samples of AC input, output, and battery current without CPU loading. The 100-TQFP 14x14 mm package offers enough IO to manage relays, alarms, and front-panel interfaces on one controller.
Recommended
Switched Reluctance Motor (SRM) Drives
Microchip explicitly identifies switched reluctance motors as a supported application for the dsPIC33FJ256MC510A family. SRM control needs precise phase-current chopping, rotor-position estimation from inductance profiles, and asymmetric-bridge PWM switching - all well matched to this DSC. The 40 MIPS core executes torque-sharing and position-estimation algorithms in real time; 256KB Flash stores magnetic characterization tables; and 16KB RAM buffers phase-current histories for sensorless commutation. The 9 timers support per-phase hysteresis or current-band control, and the 8 DMA channels keep ADC phase-current sampling deterministic. Because SRM drives tolerate harsh, dusty environments, the -40C to +85C industrial rating and robust CMOS 100-TQFP package make the MC510AT-I/PF practical for mining, automotive auxiliary, and appliance drives where SRM ruggedness is valued.
Recommended
Industrial Automation and Sensor Fusion
Beyond motors, the 40 MIPS DSP core serves general industrial automation: multi-axis coordination, vibration monitoring, and sensor fusion. The DSP multiply-accumulate instructions accelerate FIR/IIR filtering and FFT-based condition-monitoring algorithms, while 256KB Flash holds protocol stacks (CAN, UART, SPI, I2C via the 4 serial modules) alongside application logic. The 8 DMA channels stream high-rate sensor data into the 16KB RAM ring buffers without CPU stalls - important for predictive-maintenance endpoints sampling accelerometers at kHz rates. The 100-TQFP 14x14 mm package provides ample IO for encoder inputs, limit switches, and analog front ends, and the 3V-3.6V operation simplifies integration with 3.3V logic across the control backplane. The industrial temperature grade covers unconditioned factory floors and outdoor cabinets.
Recommended
Automotive Auxiliary Motor Systems
For automotive programs, Microchip offers the same MC510A silicon in automotive-qualified grades - DSPIC33FJ256MC510ATE/PF and DSPIC33FJ256MC510ATH/PF - with the 256KB Flash, 16KB RAM, 40 MHz operation, 8 DMA channels, 9 timers, and 4 serial IO modules preserved, as documented by Microchip USA. Typical uses include electric power steering assist logic, HVAC blower drives, fuel-pump and throttle actuators, and window/wiper motor control. The 3V-3.6V core supply interfaces cleanly with 3.3V automotive CAN transceivers and gate drivers. When evaluating the standard DSPIC33FJ256MC510AT-I/PF for a automotive design, verify the required temperature and qualification grade; if extended qualification is needed, migrate to the ATE/ATH variants, which share the 100-TQFP footprint for PCB reuse.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33FJ256MC510AT-I/PF — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33FJ256MC510A-I/PF | DSPIC33FJ256MC510-I/PF | DSPIC33FJ128MC510A-I/PF | DSPIC33FJ256GP510T-I/PT |
|---|---|---|---|---|---|
| Package | 100-TQFP (14x14 mm) | 100-TQFP (14x14 mm) - same | 100-TQFP (14x14 mm) - same | 100-TQFP (14x14 mm) - same | 100-TQFP (12x12 mm) |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core / Speed | 16-bit dsPIC33F, 40 MIPS | 16-bit dsPIC33F, 40 MIPS | 16-bit dsPIC33F, 40 MIPS | 16-bit dsPIC33F, 40 MIPS | 16-bit dsPIC33F, 40 MIPS |
| Flash Memory | 256 KB | 256 KB | 256 KB | 128 KB | 256 KB |
| Peripheral Family | MC (Motor Control) | MC (Motor Control) | MC (original silicon) | MC (Motor Control) | GP (General Purpose) |
| Temperature Range | -40C to +85C (I) | -40C to +85C (I) | -40C to +85C (I) | -40C to +85C (I) | -40C to +85C (I) |
| Supply Voltage | 3 V to 3.6 V | 3 V to 3.6 V | 3 V to 3.6 V | 3 V to 3.6 V | 3 V to 3.6 V |
Key Differentiators
- A-series silicon with corrected errata (vs DSPIC33FJ256MC510-I/PF)
- Motor-control peripheral set (vs DSPIC33FJ256GP510T-I/PT)
- Full 256KB Flash at same pinout (vs DSPIC33FJ128MC510A-I/PF)
Design Notes
Power the MC510AT-I/PF from a clean 3.3V rail within the 3V-3.6V window. Place 0.1uF ceramic decoupling at every VDD pin pair plus one bulk 10uF near the device; the 40 MHz core switching and simultaneous IO transitions create fast transient loads. If the same rail feeds gate drivers or LEDs, isolate the MCU rail with an LC filter or separate LDO to prevent ground-bounce resets. Verify VDDCORE requirements in the family datasheet before layout.
The /PF suffix denotes the 14x14 mm 100-TQFP body - do not reuse the 12x12 mm /PT land pattern. Use 0.5 mm pitch footprint per IPC-7351 with ~6 mil trace/gap under the leads, and thermal-relief the exposed fanout vias for thermal dissipation through the ground plane. Keep the motor-control PWM traces short and route phase-current sense lines differentially back to the ADC away from PWM switching edges to limit cross-talk.
The 'A' suffix matters: the original DSPIC33FJ256MC510 (non-A) carries documented silicon errata that the MC510A family corrects, so verify your compiler and header files target the A device (device ID differs). Also confirm programming-tool support for the Tape & Reel AT variant - it is electrically identical, but supply-chain substitutions to non-A or /PT parts are common in broker channels and can break footprints or errata assumptions silently.
Compliance Information
ROHS3 compliant per ics-embedded distributor data. Automotive-qualified grades (ATE/ATH) exist separately in the same family. REACH, halogen-free and conflict-minerals declarations not found in verified web data.
