dsPIC33FJ256MC510T-I/PT - 16-bit 40 MIPS DSC 256KB Flash | Microchip
MPN: DSPIC33FJ256MC510T-I/PT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $7.84 | $7.84 |
| 10 | $7.2 | $72.00 |
| 100 | $6.65 | $665.00 |
| 500 | $6.1 | $3,050.00 |
| 1,000 | $5.55 | $5,550.00 |
DSPIC33FJ256MC510T-I/PT Overview
A digital signal controller combines the computational engine of a microcontroller (MCU) with the math acceleration of a digital signal processor (DSP) in a single chip. Within the power management hierarchy of embedded systems, a DSC sits above a general-purpose MCU for control-loop-intensive tasks: it executes fast multiply-accumulate operations for field-oriented motor control, digital power conversion (PI/PID loops), and sensor signal processing while retaining MCU-style peripherals, interrupts, and low-cost development tooling. The dsPIC33F family from Microchip occupies this MCU-to-DSP intersection, with seamless migration paths to PIC24 MCUs and dsPIC30F DSCs in similar packages.
Key features of this part include the 16-bit dsPIC33F core clocked at up to 40 MIPS, 256KB (256K x 8) of on-chip FLASH for application and bootloader storage, and operation from a 3V to 3.6V single supply. The MC suffix denotes the motor-control peripheral set within the dsPIC33F family, which pairs DSP math capability with motor-control oriented peripherals for closed-loop drive applications.
Architecturally, the dsPIC33F core uses a modified Harvard pipeline with DSP instruction support (MAC, DSP multiply, modulo addressing), enabling deterministic single-cycle DSP math at 40 MIPS. This makes the controller well matched to space-vector PWM generation and current-loop bandwidths of a few kilohertz and above.
Typical applications include brushless DC (BLDC), permanent-magnet synchronous and AC induction motor drives, single- and three-phase power conversion, digital UPS and solar inverter control, and industrial automation nodes requiring sensor fusion with fast control loops.
Design consideration: operate the device within the 3.0V to 3.6V supply window specified by the datasheet and decouple all VDD/VDDCORE pins per the Microchip layout guidelines; the 100-TQFP exposes numerous ground pins that must be tied to a solid ground plane for analog and DSP noise performance.
This page synthesizes distributor pricing, drop-in family alternatives, and practical design notes not found in the manufacturer datasheet, with pricing verified as of 2026-09-27.
Drop-in alternatives for DSPIC33FJ256MC510T-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 DSPIC33FJ256MC510T-I/PT (same form factor and footprint) — differing in Operating Temperature, Package, RoHS Status, Connectivity, Core Architecture.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33FJ256MC510A-I/PT
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33FJ256MC510T-I/PF
✅ Drop-In✓ In Stock
$6.65 / Unit
View Datasheet →DSPIC33FJ256GP510T-I/PT
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$6.95 / Unit
View Datasheet →DSPIC33FJ256GP510-I/PF
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$4.98 / Unit
View Datasheet →DSPIC33FJ128MC710T-I/PT
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$5.2 / Unit
View Datasheet →DSPIC33FJ256MC510T-I/PT Maximum Ratings & Electrical Characteristics
| Core Architecture | 16-bit dsPIC33F DSC |
| Maximum CPU Speed | 40 MIPS |
| Program Memory (FLASH) | 256KB (256K x 8) |
| SRAM | 16KB |
| Supply Voltage Range | 3 V to 3.6 V |
| Operating Temperature | -40C to +85C (I grade) |
| Package | 100-TQFP (12x12 mm) |
| Mounting Type | Surface Mount |
| Product Family | dsPIC33F Motor Control (MC) |
| Packaging Suffix | T = Tape and Reel |
| RoHS Status | ROHS3 Compliant |
DSPIC33FJ256MC510T-I/PT 100-tqfp (12x12 mm) Pin Configuration Guide
Pin configuration for DSPIC33FJ256MC510T-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 DSPIC33FJ256MC510T-I/PT.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33FJ256MC510T-I/PT is suitable for 6 applications: Brushless DC (BLDC) Motor Drives, Digital Power Conversion and Solar Inverters, Industrial Automation and Process Control, Sensor Signal Processing and Data Acquisition, Consumer Appliances with Motor Control, Embedded Control with Seamless Family Migration.
Brushless DC (BLDC) Motor Drives
The dsPIC33FJ256MC510T-I/PT is purpose-built for BLDC and PMSM drive applications: its 16-bit DSP core executes field-oriented control (FOC) loops at 40 MIPS, while the MC peripheral set provides the complementary PWM outputs required for three-phase inverters. In a typical sensorless drive, the controller samples phase currents at 10-20 kHz, runs Clarke/Park transforms and PI current loops in firmware, and updates PWM duty cycles within the same control period - a workload a general-purpose 8-bit MCU cannot sustain. The 256KB FLASH holds commutation state machines, start-up algorithms, and CAN or UART communication stacks simultaneously. Design consideration: route PWM outputs away from analog current-sense inputs and use the device's 3.0-3.6V supply domain with proper gate-driver level shifting.
Recommended
Digital Power Conversion and Solar Inverters
Digital power converters - solar inverters, UPS systems, and PFC stages - benefit directly from this DSC's deterministic 40 MIPS DSP math and motor-control peripheral heritage. The part closes voltage and current loops in firmware at switching frequencies typical of 20-100 kHz power stages, computing PI compensation with single-cycle multiply-accumulate operations for minimal loop latency. The 256KB FLASH accommodates grid-tie control code, protection routines (over-current, over-voltage, anti-islanding), and communication interfaces concurrently. Because the device runs from 3V to 3.6V, isolate its ADC inputs from power-stage feedback with precision op-amps and level conditioning. Compared to analog control, firmware control enables adaptive compensation and easier grid-code updates - a key reason designers choose the dsPIC33F MC family over discrete analog controllers.
Recommended
Industrial Automation and Process Control
In factory automation nodes, the dsPIC33FJ256MC510T-I/PT combines 40 MIPS signal processing with industrial-temperature operation from -40C to +85C, making it suitable for sensor conditioning, closed-loop actuator control, and machine sequencing on one chip. Typical implementations read analog sensors through the on-chip converter, filter signals with DSP instructions, and drive actuators or report over serial links. The 256KB FLASH supports protocol stacks (Modbus over UART, CAN gateways) plus a bootloader for field firmware updates - important for long-life industrial equipment. Design consideration: the 3.0-3.6V supply domain requires level-shifted interfacing to legacy 5V PLC I/O, and the 100-pin TQFP's pin count provides ample parallel I/O for relay banks and discrete sensing in control cabinets.
Recommended
Sensor Signal Processing and Data Acquisition
DSP-accelerated signal chains - vibration monitoring, acoustic analysis, and multi-channel data acquisition - run efficiently on this DSC: the 16-bit core's single-cycle MAC operations and DSP addressing modes accelerate FIR/IIR filtering and FFT computation at 40 MIPS. The 100-pin TQFP exposes the pin count needed to interface multiple analog front-end channels, external memory, and host communication simultaneously. The 256KB FLASH allows storing calibration tables, filter coefficients, and event logs on-chip. For accuracy, keep analog inputs routed away from the switching PWM traces and use a low-noise 3.3V LDO for the VDD rail. Compared to a general-purpose MCU, the DSP instructions cut filter execution time several-fold, permitting higher sample rates or more filter stages within the same power budget.
Recommended
Consumer Appliances with Motor Control
Appliances such as washing machines, air conditioners, refrigerators, and ventilation fans increasingly use variable-speed BLDC or induction motors controlled by the dsPIC33F MC family. The dsPIC33FJ256MC510T-I/PT executes sensorless commutation with back-EMF observation or single-shunt current sensing, while its spare MIPS handle user-interface scanning, buzzer tones, and appliance-state logic concurrently. The industrial -40C to +85C rating covers unconditioned appliance environments, and the 3V-3.6V supply simplifies integration with modern 3.3V peripheral ICs. The 256KB FLASH supports OTA-style serial bootloaders that manufacturers use to ship feature updates. Compared to discrete motor-control ASICs, firmware control lets one PCB platform serve multiple appliance models - a significant bill-of-materials consolidation advantage at production scale.
Recommended
Embedded Control with Seamless Family Migration
Systems that may scale up or down in memory or migrate architectures benefit from Microchip's stated migration strategy: according to the manufacturer's product page, the dsPIC33F motor-control family offers seamless migration options to PIC24 MCUs and dsPIC30F DSCs in similar packages. Designing a product around the dsPIC33FJ256MC510T-I/PT in the 100-TQFP footprint lets a manufacturer reuse the same PCB across product tiers: lower-cost 128KB variants (e.g., the dsPIC33FJ128MC710T-I/PT) for entry models, and GP-family parts (dsPIC33FJ256GP510T-I/PT) for non-motor-control SKUs. This pin-compatibility de-risks supply chain interruptions too, since multiple orderable variants occupy the same footprint. Verify peripheral-to-pin mapping in the family datasheet before committing the second-source part to an existing board revision.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33FJ256MC510T-I/PT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33FJ256MC510A-I/PT | DSPIC33FJ256MC510T-I/PF | DSPIC33FJ256GP510T-I/PT | DSPIC33FJ128MC710T-I/PT |
|---|---|---|---|---|---|
| Package | 100-TQFP (12x12 mm) | 100-TQFP (12x12 mm) - same | 100-TQFP (12x12 mm) - same | 100-TQFP (12x12 mm) - same | 100-TQFP (12x12 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| CPU Speed | 40 MIPS | 40 MIPS | 40 MIPS | 40 MIPS | 40 MIPS |
| FLASH Program Memory | 256 KB | 256 KB | 256 KB | 256 KB | 128 KB |
| 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 |
| Operating Temperature | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C |
| Peripheral Orientation | Motor Control (MC) family | Motor Control (MC) | Motor Control (MC) | General Purpose (GP) | Motor Control (MC) |
| RoHS | ROHS3 Compliant | Compliant | Compliant | Compliant | Compliant |
Key Differentiators
- Largest FLASH in the 100-pin MC family tier (vs DSPIC33FJ128MC710T-I/PT)
- Motor-control peripheral orientation (vs DSPIC33FJ256GP510T-I/PT)
- Latest silicon revision option exists (vs DSPIC33FJ256MC510A-I/PT)
Design Notes
The dsPIC33FJ256MC510T-I/PT requires a tight 3.0V to 3.6V supply. Decouple every VDD pin with 0.1 uF ceramic capacitors placed within 2-3 mm of each pin, and follow the Microchip datasheet's on-chip voltage regulator (VDDCORE) capacitor requirement - typically a low-ESR ceramic of the specified value on the VDDCORE pin; omitting it can cause brown-outs at 40 MIPS operation. Estimated: a 3.3V rail at ~50-70 mA device current dissipates under 0.25 W in the upstream LDO, so thermal design of the supply is trivial; the constraint is rail integrity, not heat.
For motor-control layouts, keep the motor-control PWM output traces short and away from analog feedback lines feeding the ADC pins. The 100-TQFP (12x12 mm) has a 0.5 mm pin pitch - use a fine-pitch footprint per IPC guidance and connect all VSS pins to a solid ground plane with multiple vias. Place crystal/oscillator traces short and guard them with ground. Reference Microchip's dsPIC33F family layout app notes for the recommended PLL supply filtering, which reduces jitter for time-critical PWM updates.
Common pitfalls: (1) powering the device from 5V - the absolute maximum is exceeded above 3.6V operating; (2) forgetting that the T-suffix denotes tape-and-reel moisture sensitivity - bake the reel per J-STD handling practice if shelf life is exceeded; (3) mixing MC and GP family parts on one footprint without verifying the peripheral pin mux table - PWM output pins on the MC510 differ in function on the GP510. Always simulate pin assignments in the Microchip pin-mapping tool before reusing a PCB layout across family variants.
Compliance Information
ROHS3 compliant per distributor listing (ics-embedded.com). REACH and halogen-free status not stated in provided data.
