DSPIC33FJ256GP510-I/PT - 16-Bit DSC 40MIPS 256KB | Microchip
MPN: DSPIC33FJ256GP510-I/PT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $8.2 | $8.20 |
| 10 | $7.45 | $74.50 |
| 25 | $6.95 | $173.75 |
| 100 | $6.4 | $640.00 |
| 1,000 | $5.6 | $5,600.00 |
DSPIC33FJ256GP510-I/PT Overview
A Digital Signal Controller combines the compute throughput of a Digital Signal Processor (DSP) with the peripheral integration and deterministic control of a microcontroller (MCU). Within the power-management and embedded-control hierarchy, the DSC sits between a general-purpose MCU and a dedicated DSP, making the dsPIC33F family a natural choice for motor control, digital power conversion, and sensor signal processing where both math throughput and tight real-time I/O are required.
Key features of the DSPIC33FJ256GP510 include the dsPIC33F core with DSP engine (single-cycle MAC, 40-bit wide accumulator, dual operand fetch), a general-purpose (GP) peripheral set with multiple UART, SPI, and I2C modules, high-speed 12-bit ADC with multi-channel scanning, output compare and input capture channels, and In-Circuit Serial Programming (ICSP) plus in-circuit debugging via pairs of PGECx/PGEDx pins. Wide -40C to +85C industrial temperature coverage is indicated by the -I suffix.
Architecturally, the dsPIC33F core executes most instructions in a single cycle at up to 40 MIPS and provides deterministic interrupt latency, which is essential for field-oriented motor control loops and digital power feedback loops. The 256 KB self-programmable Flash supports field firmware updates, and the family offers seamless migration to/from PIC24 MCUs and dsPIC30F DSCs in similar packages, protecting software investment.
Typical applications include BLDC and PMSM motor control drives, switch-mode power supplies and digital lighting (for example with the related GS-series parts), industrial sensors and instrumentation, audio and signal conditioning front ends, and embedded control in appliances and power tools.
When designing the PCB, connect all VDD and VSS pin pairs; per the manufacturer guidance, leaving any supply pin unconnected can cause programming or debugging failures over ICSP. Decouple every supply pin with 0.1 uF ceramics close to the pins.
This page synthesizes distributor pricing data, verified drop-in alternatives, and practical design notes not found in the standard datasheet, as of 2026-09-27.
Drop-in alternatives for DSPIC33FJ256GP510-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 DSPIC33FJ256GP510-I/PT (same form factor and footprint) — differing in Operating Temperature, Package, Core Architecture, Series, Family Compatibility.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33FJ256GP510A-I/PT
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
Contact for price
View Datasheet →DSPIC33FJ256GP510AT-I/PT
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33FJ256GP510-I/PF
✅ Drop-In✓ In Stock
$4.98 / Unit
View Datasheet →DSPIC33FJ256GP710-I/PT
✅ Drop-In✓ In Stock
$9.9 / Unit
View Datasheet →DSPIC33FJ128GP510-I/PT
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33FJ256GP510-I/PT Maximum Ratings & Electrical Characteristics
| Core Architecture | 16-bit dsPIC33F DSC |
| Maximum Clock Frequency | 40 MHz |
| Performance | 40 MIPS |
| Program Memory Size | 256 KB Flash (256K x 8) |
| Supply Voltage | 3.0 V to 3.6 V (3.3 V nominal) |
| Package | 100-TQFP (12x12 mm) |
| Mounting Type | Surface Mount |
| Operating Temperature | -40C to +85C (industrial, -I suffix) |
| Series | dsPIC33FJ256GP |
| Programming / Debug | ICSP via PGECx/PGEDx pin pairs |
| Number of Pins | 100 |
| SRAM Size | 30 KB |
| RoHS Status | Compliant |
| Packaging | Tray |
DSPIC33FJ256GP510-I/PT 100-tqfp (12x12 mm) Pin Configuration Guide
Pin configuration for DSPIC33FJ256GP510-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 DSPIC33FJ256GP510-I/PT.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33FJ256GP510-I/PT is suitable for 6 applications: BLDC / PMSM Motor Control, Industrial Sensors and Instrumentation, Embedded Control in Appliances and Power Tools, Digital Power Conversion and Lighting, Audio and Signal-Conditioning Front Ends, Legacy Design Continuity and BOM Resilience.
BLDC / PMSM Motor Control
The DSPIC33FJ256GP510-I/PT fits motor-control drives because its dsPIC33F core executes field-oriented control (FOC) inner current loops at 40 MIPS with single-cycle MAC operations, providing the deterministic latency that 16-bit general MCUs without a DSP engine cannot sustain. The GP peripheral set supplies multiple output-compare/PWM channels, input captures, and encoder interfaces for position feedback. In a typical drive, the DSC runs the FOC loop from the ADC-sampled phase currents and outputs complementary PWM to the gate drivers, achieving control-loop rates in the tens of kHz. Compared with a pure MCU solution, the DSP engine reduces loop execution time, leaving headroom for communication and protection tasks on one chip.
Recommended
Industrial Sensors and Instrumentation
For industrial sensor nodes and instruments, the DSPIC33FJ256GP510-I/PT combines a 3.0-3.6 V supply, -40C to +85C industrial temperature grade, and DSP math for filtering and linearization of analog front-end data. The 100-pin TQFP exposes ample I/O for multi-sensor acquisition, while the ADC captures sensor channels and the DSP engine applies IIR/FIR filtering in real time. The 256 KB self-programmable Flash accommodates protocol stacks plus OTA-style field firmware updates, and multiple UART/SPI/I2C modules interface MODBUS, RS-485, and local sensors. Unlike an 8-bit solution, one dsPIC33F replaces the separate DSP or coprocessor, cutting BOM cost and board area while preserving 40 MIPS of compute for calibration mathematics.
Recommended
Embedded Control in Appliances and Power Tools
Consumer appliances and power tools demand low unit cost, robust EMC behavior, and deterministic motor or heater control - a profile the DSPIC33FJ256GP510-I/PT meets with a single 3.3 V supply, 40 MIPS throughput, and integrated communication peripherals. The wide 100-pin I/O count supports capacitive-touch style front panels, relay and triac drivers, and serial links in one controller, while the DSP engine handles commutation or power-regulation math. The -I temperature grade (-40C to +85C) covers unventilated enclosures, and ICSP enables production-line programming without removing the device. Migration compatibility with PIC24 MCUs lets teams share code across product tiers from basic MCU models up to DSC-equipped flagship variants.
Recommended
Digital Power Conversion and Lighting
In digital power supplies, LED drivers, and lighting ballasts, the DSPIC33FJ256GP510-I/PT supplies the control CPU while Microchip's GS-series dsPIC33F parts (DSPIC33FJ16GS504, DSPIC33FJ16GS502) specialize in high-resolution PWM for the power stage itself. The GP510 handles supervisory control, communication (UART/I2C to a host), fault logging, and housekeeping math at 40 MIPS, complementing the GS part's dedicated power-conversion peripherals. Because all these dsPIC33F devices share the XC16 toolchain and ICSP programming workflow, a single development environment covers both control and power domains. The 3.0-3.6 V operating range and industrial temperature rating suit enclosed switch-mode enclosures where ambient temperatures approach 85C.
Recommended
Audio and Signal-Conditioning Front Ends
The DSP engine of the DSPIC33FJ256GP510-I/PT - single-cycle MAC with 40-bit accumulators - makes it practical for audio-band filtering, equalization, tone generation, and sensor signal conditioning that would overload a conventional MCU at the same clock rate. Multi-channel ADC sampling feeds FIR/IIR chains executing at 40 MIPS, while UART/SPI/I2C modules move data to codecs or hosts. The 256 KB Flash retains large coefficient tables and multiple product profiles, and the -I grade suits professional equipment in studio or installation environments. Designers should budget analog layout care around the shared ADC: a quiet ground reference and supply decoupling on every VDD pin materially improve effective converter performance in audio-critical paths.
Recommended
Legacy Design Continuity and BOM Resilience
For OEMs maintaining long-life industrial products, the DSPIC33FJ256GP510-I/PT anchors a pin-compatible second-source strategy inside Microchip's own family. Because the GP510A, GP510AT, GP710, and GP506A siblings offer seamless migration in similar packages per Microchip's product page, a single PCB footprint can absorb silicon revisions and supply allocations without requalification of the layout. Procurement teams can qualify the A-revision (DSPIC33FJ256GP510A-I/PT) and the GP710 variant on the same board, switching by firmware or by purchasing decision as availability shifts. Keep firmware portable across the family using the XC16 compiler, and verify PGECx/PGEDx programming-pair wiring matches all qualified variants before releasing the BOM.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33FJ256GP510-I/PT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33FJ256GP510A-I/PT | DSPIC33FJ256GP510AT-I/PT | DSPIC33FJ256GP510-I/PF | DSPIC33FJ256GP710-I/PT | DSPIC33FJ128GP510-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 | 100-TQFP (12x12 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core Performance | 40 MIPS @ 40 MHz | 40 MIPS @ 40 MHz | 40 MIPS @ 40 MHz | 40 MIPS @ 40 MHz | 40 MIPS @ 40 MHz | 40 MIPS @ 40 MHz |
| Program Memory (Flash) | 256 KB | 256 KB | 256 KB | 256 KB | 256 KB | 128 KB (-50%) |
| 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 | 3.0 V to 3.6 V |
| Operating Temperature | -40C to +85C (I grade) | -40C to +85C (I grade) | -40C to +85C (I grade, extended variant) | -40C to +85C (I grade) | -40C to +85C (I grade) | -40C to +85C (I grade) |
| Silicon Revision | Original (non-A) | A-revision (current production) | A-revision, extended (T) | Original (non-A) | Original (non-A) | Original (non-A) |
| Family Peripheral Emphasis | GP (general purpose) | GP (general purpose) | GP (general purpose) | GP (general purpose) | GP710 variant - verify peripheral set | GP (general purpose) |
| ICSP Programming | PGECx/PGEDx pairs | PGECx/PGEDx pairs | PGECx/PGEDx pairs | PGECx/PGEDx pairs | PGECx/PGEDx pairs | PGECx/PGEDx pairs |
Key Differentiators
- Largest Flash in the GP510 100-pin family (vs DSPIC33FJ128GP510-I/PT)
- Current-production A-revision silicon available (vs DSPIC33FJ256GP510A-I/PT)
- Pure GP peripheral emphasis for balanced designs (vs DSPIC33FJ256GP710-I/PT)
- Trade-off: tray packaging vs reel (vs DSPIC33FJ256GP510-I/PF)
Design Notes
Connect every VDD and VSS pin on the 100-pin TQFP; the dsPIC33FJ256GP510 has multiple supply pairs and, per the manufacturer's programming guidance (mirrored by northernsoftware.com), leaving even one supply pin unconnected can cause ICSP programming or debugging to fail. Decouple each VDD pin with a 0.1 uF ceramic placed within a few millimeters of the pin, plus bulk 4.7-10 uF near the device. Do not share a single decoupling network across multiple supply pins.
Wire the ICSP header to exactly one PGECx/PGEDx pair and treat that pair as dedicated - PGECx and PGEDx must be used as a matched set (PGEC2 with PGED2, for example), never mixed across pairs. Route these traces short and away from switching nodes (motor phase outputs, MOSFET drains) so in-circuit debugging remains reliable. Reserve a 5-pin or 6-pin programming header footprint in production layouts even when field programming is not planned.
Do not assume all 100-pin dsPIC33FJ256GP510 variants are peripheral-identical: the GP710 sibling shares the package and core ratings but its peripheral allocation differs from the GP510, so verify against your firmware's module usage before qualifying it as a second source. The A-revision (GP510A) devices incorporate errata fixes - for new designs start with the A-silicon rather than the original non-A die. Confirm the -I temperature grade matches your enclosure worst case; do not substitute unqualified commercial grades in industrial designs.
The specified supply window is 3.0 V to 3.6 V, so power the DSPIC33FJ256GP510-I/PT from a regulated 3.3 V rail (an LDO such as a 3.3 V fixed-output regulator or a buck with 1-2% accuracy). Avoid rails that can exceed 3.6 V during transients, as this is the absolute operating ceiling. Budget supply current according to clock configuration - running the full 40 MHz (40 MIPS) with all peripherals enabled draws the most current, while the internal FRC and idle/sleep modes reduce consumption for battery-backed applications.
Compliance Information
RoHS compliance per Microchip standard product data for -I grade parts. REACH, halogen-free, and conflict-minerals status not stated in the retrieved web data; confirm on the Microchip product page or environmental datasheet.
