DSPIC33FJ256GP510T-I/PT - 16-bit 40 MIPS DSC 256KB Flash | Microchip
MPN: DSPIC33FJ256GP510T-I/PT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $9.87 | $9.87 |
| 10 | $8.92 | $89.20 |
| 100 | $8.14 | $814.00 |
| 500 | $7.55 | $3,775.00 |
| 1,000 | $6.95 | $6,950.00 |
DSPIC33FJ256GP510T-I/PT Overview
A digital signal controller combines the computational throughput of a DSP with the peripheral integration and control peripherals of a microcontroller. DSCs sit between general-purpose MCUs and dedicated DSPs in the processing hierarchy, making them the preferred choice when an application needs both fast math (multiply-accumulate, division support) and rich real-time control peripherals on a single chip.
Key features include the dsPIC33F 16-bit core with DSP engine at up to 40 MIPS, 256KB self-programming FLASH, 16KB RAM, an internal on-chip regulator supplying the 1.8V core (external low-ESR capacitor required on VCAP), industrial temperature rating of -40C to +85C, and in-circuit serial programming (ICSP) and debugging support via MPLAB tools such as the MPLAB SNAP.
The dsPIC33FJXXXGPX06/X08/X10 family shares a common peripheral set: multiple UART, SPI, and I2C modules, motor-control and general-purpose PWM outputs, a high-speed 12-bit ADC, input capture/output compare channels, and flexible interrupt architecture. Per the Microchip family data sheet (document 70286C), the family is pin compatible with the PIC24H family and shares a very high degree of compatibility with the dsPIC30F family, enabling easy migration between families as application requirements evolve.
Typical applications include industrial automation and control, motor drives and power conversion, digital power supplies, sensor signal conditioning and digital filtering, and embedded systems requiring deterministic real-time performance with DSP-class arithmetic.
Design consideration: the on-chip regulator requires a low-ESR capacitor (such as tantalum) on the VCAP pin to maintain core voltage stability; omitting or undersizing this capacitor is a common cause of startup instability.
This page synthesizes distributor pricing, drop-in alternatives, design notes, and comparison data not found in the manufacturer data sheet. Pricing shown is as of 2026-09-27.
Drop-in alternatives for DSPIC33FJ256GP510T-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 DSPIC33FJ256GP510T-I/PT (same form factor and footprint) — differing in Operating Temperature, Package, Connectivity, Series, Core Processor.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33FJ256GP510-I/PT
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33FJ256GP510-I/PF
✅ Drop-In✓ In Stock
$4.98 / Unit
View Datasheet →DSPIC33FJ256GP510A-I/PT
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33FJ256GP506AT-I/PT
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$4.95 / Unit
View Datasheet →DSPIC33FJ256GP510T-I/PT Maximum Ratings & Electrical Characteristics
| Core Architecture | 16-bit dsPIC33F DSC core |
| Maximum Operating Speed | 40 MIPS |
| Program Memory (FLASH) | 256KB (256K x 8) |
| RAM | 16KB |
| Supply Voltage (VDD) | 3.3 V |
| Core Voltage | 1.8 V (via on-chip regulator, VCAP capacitor required) |
| Package | 100-TQFP (12x12 mm) |
| Pin Count | 100 |
| Mounting Type | Surface Mount |
| Operating Temperature | -40C to +85C (Industrial, I suffix) |
| Series | dsPIC33F General Purpose (dsPIC33FJXXXGPX06/X08/X10) |
| Programming/Debug | ICSP via MPLAB SNAP / ICD (2 device I/O pins + MCLR) |
| Family Compatibility | Pin compatible with PIC24H; high compatibility with dsPIC30F |
| DSP Engine | Yes (multiply-accumulate, DSP instructions) |
| RoHS Status | Compliant |
| Packaging Suffix | T = Tape and Reel |
DSPIC33FJ256GP510T-I/PT 100-tqfp (12x12 mm) Pin Configuration Guide
Pin configuration for DSPIC33FJ256GP510T-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 DSPIC33FJ256GP510T-I/PT.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33FJ256GP510T-I/PT is suitable for 6 applications: Industrial Automation and Control, Digital Motor Control, Sensor Signal Conditioning and DSP Filtering, Digital Power Supplies, Embedded Instrumentation and Test Equipment, Medical and Portable Diagnostic Devices.
Industrial Automation and Control
Factory automation nodes need deterministic, real-time control with multiple communication interfaces. The DSPIC33FJ256GP510T-I/PT delivers 40 MIPS of 16-bit processing with DSP multiply-accumulate capability for PID loops and digital filtering, plus multiple UART, SPI, and I2C modules to talk to drives, HMIs, and sensors. Its 256KB FLASH supports complex state machines and protocol stacks without external memory, and ICSP programming enables field firmware updates through a production fixture. The -40C to +85C industrial rating covers unconditioned cabinets, while the on-chip core regulator simplifies 3.3V-rail power design on crowded control boards.
Recommended
Digital Motor Control
Sensorless FOC andBLDC control require fast current-loop execution, which this part addresses with 40 MIPS throughput, a hardware DSP engine for Clarke/Park transforms, PWM outputs, and a high-speed 12-bit ADC for phase-current sampling synchronized to the PWM carrier. The 256KB FLASH leaves ample room for commutation tables, protection routines, and protocol stacks. Because the dsPIC33F family is pin compatible with the PIC24H per data sheet 70286C, a control board can be shared across speed/memory grades, letting one PCB serve economy and premium product tiers by swapping the DSC alone.
Recommended
Sensor Signal Conditioning and DSP Filtering
Applications such as vibration monitoring, load-cell front ends, and acoustic analysis benefit from the part's DSP instructions performing FIR/IIR filtering on ADC streams at 40 MIPS. The high-speed 12-bit ADC with multiple channels captures simultaneous sensor inputs, while 16KB RAM buffers waveform windows for FFT or envelope analysis. Executing filtering on-chip removes the need for a separate DSP chip, cutting BOM cost and board area on the 100-TQFP 12x12 mm footprint. The 256KB FLASH also stores calibration coefficients and logging history locally for predictive-maintenance analytics.
Recommended
Digital Power Supplies
Digitally controlled AC-DC and DC-DC converters use the 40 MIPS core to run voltage/current control loops with sampling rates of tens of kHz and beyond, compensating faster than analog trim approaches. PWM modules generate the switching waveforms, and the ADC is triggerable from PWM events for cycle-by-cycle current control. The on-chip 1.8V core regulator (with the mandatory VCAP capacitor per data sheet 70286C) allows the controller to share the 3.3V bias rail of the gate-driver stage. Firmware-based control also enables adaptive features such as burst mode, current sharing, and telemetry over UART/I2C.
Recommended
Embedded Instrumentation and Test Equipment
Bench instruments, data loggers, and portable testers need display, storage, and communication concurrency. The DSPIC33FJ256GP510T-I/PT offers multiple UARTs (for RS-232/485 and GPS modules), SPI (for displays and flash cards), and I2C (for sensors and RTCs), all serviced by a priority interrupt architecture that keeps time-critical acquisition routines deterministic. With 40 MIPS, it can drive a graphical LCD while continuously sampling and buffering data into the 16KB RAM. ICSP allows firmware feature upgrades after deployment, extending product lifetime without hardware revisions.
Recommended
Medical and Portable Diagnostic Devices
Portable diagnostic products use the 40 MIPS DSP engine to process biopotential or optical sensor signals with on-chip digital filtering, reducing noise without external analog filter stages. The 12-bit ADC samples electrode or photodiode inputs, while UART and SPI interfaces stream results to a host or wireless module. The industrial -40C to +85C rating exceeds typical medical ambient requirements, adding margin, and 3.3V single-rail operation (with on-chip core regulation) suits battery-powered designs. The 256KB FLASH holds multi-protocol firmware and patient calibration data securely on-chip.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33FJ256GP510T-I/PT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33FJ256GP510-I/PT | DSPIC33FJ256GP510-I/PF | DSPIC33FJ256GP510A-I/PT |
|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 100-TQFP (12x12 mm) | 100-TQFP (12x12 mm) - same | 100-TQFP (14x14 mm) - body larger | 100-TQFP (12x12 mm) - same |
| Core / Speed | 16-bit dsPIC33F, 40 MIPS | 16-bit dsPIC33F, 40 MIPS | 16-bit dsPIC33F, 40 MIPS | 16-bit dsPIC33F, 40 MIPS |
| Program Memory | 256KB FLASH | 256KB FLASH | 256KB FLASH | 256KB FLASH |
| RAM | 16KB | 16KB | 16KB | 16KB |
| Supply Voltage | 3.3 V | 3.3 V | 3.3 V | 3.3 V |
| Operating Temperature | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C |
| Packaging / Delivery | Tape & Reel (T suffix) | Tray / Tube | Tray / Tube | Tape & Reel (T suffix) |
Key Differentiators
- Identical function with automated-assembly packaging (vs DSPIC33FJ256GP510-I/PT)
- Smaller 12x12 mm body for dense boards (vs DSPIC33FJ256GP510-I/PF)
- Mature, errata-proven silicon for existing designs (vs DSPIC33FJ256GP510A-I/PT)
Design Notes
The on-chip regulator derives the 1.8V core from the 3.3V VDD pins. Per Microchip data sheet 70286C, a low-ESR capacitor (tantalum recommended) must be connected to the VCAP pin, with value and ESR per Section 8.0 AC/DC characteristics. Estimated: with 40 MIPS full-speed core operation, core current is typically in the tens of mA range; the VCAP capacitor absorbs core-current transients. Do not load the VCAP pin externally and do not substitute a plain high-ESR electrolytic, or startup instability may result.
Place a 0.1uF ceramic decoupling capacitor at each VDD pin pair, as close to the pins as possible, plus one bulk 4.7uF-10uF capacitor near the device. Connect all VSS pins solidly to a continuous ground plane; with 100 pins on a 12x12 mm body, use via stitching directly at each VSS pad. Keep the VCAP capacitor trace short and away from clock signals to avoid coupling noise into the core regulator.
Reserve PGC/PGD and MCLR routing to a programming header even in cost-optimized designs - ICSP debugging with MPLAB SNAP uses two device I/O pins plus MCLR per Microchip documentation, and retrofitting these traces after layout is painful. Also verify oscillator startup: if using an external crystal for the PLL to reach 40 MIPS, follow the data sheet load-capacitance guidance and confirm the PLL lock before assuming full-speed operation.
When switching 40 MIPS internal clocks, keep high-speed peripheral traces (SPI SCK, UART TX) away from the analog ADC input pins, and use a quiet analog supply or RC filter on AVDD if ADC accuracy matters. Estimated: digital switching noise of tens of mV on AVDD can cost several LSBs of the 12-bit ADC; an RC filter (e.g., 10 ohm / 1uF as a starting point, verify in-system) is a low-cost mitigation.
Compliance Information
RoHS compliant per DigiKey and Hotenda listings; standard matte-tin lead finish Microchip TQFP. AEC-Q100 qualification not stated in provided data for this part.
