DSPIC33FJ256GP510A-I/PT - 16-bit DSC 40MIPS 256KB Flash | Microchip
MPN: DSPIC33FJ256GP510A-I/PT ✓ Active| Qty | Unit Price | Extended |
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| 1 | $0 | $0.00 |
| 10 | $0 | $0.00 |
| 100 | $0 | $0.00 |
| 500 | $0 | $0.00 |
| 1,000 | $0 | $0.00 |
DSPIC33FJ256GP510A-I/PT Overview
A digital signal controller combines the computational power of a DSP with the peripheral integration and ease of use of a microcontroller, forming the top tier of the general-purpose (GP) branch of the dsPIC33F family within the broader power-management-by-periphery hierarchy of 16-bit embedded processors. DSCs are the standard choice where both control-loop code and real-time math (filters, transforms, PID) must run on one chip.
Key features include a 16-bit dsPIC RISC core at up to 40 MIPS, two on-chip ADC modules configurable as 10-bit/1.1 Msps with four sample-and-hold circuits or 12-bit/500 ksps with one sample-and-hold, and up to 32 analog inputs on 100-pin devices with flexible, independent ADC trigger sources.
The dsPIC33FJ256GP510A utilizes Microchip's modified Harvard architecture with DSP engine (40-bit accumulator, 17-bit x 17-bit single-cycle MAC), flexible interrupt structure, and multiple PGECx/PGEDx pin pairs for In-Circuit Serial Programming (ICSP) and debugging via MPLAB tools such as MPLAB Snap and the MPLAB XC-DSC compiler. The A-grade silicon is the current production revision, backward-compatible in code for legacy dsPIC33FJ designs after recompilation.
Typical applications include industrial motor control and power conversion, automotive and industrial sensing nodes (Arrow lists the family as AEC-Q100-qualified), audio processing, and general-purpose embedded control in medical and consumer products.
Design consideration: pair every VDD/VSS pair with local decoupling and confirm PGECx/PGEDx pairs are routed as matched pairs for programming access.
This page synthesizes distributor pricing, drop-in same-footprint alternatives, and practical design notes not found in the manufacturer datasheet.
Drop-in alternatives for DSPIC33FJ256GP510A-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 DSPIC33FJ256GP510A-I/PT (same form factor and footprint) — differing in Operating Temperature, Package, Core Architecture, Supply Voltage, Program Memory Size.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33FJ256GP510A-I/PF
✅ Drop-In✓ In Stock
$8.64 / Unit
View Datasheet →DSPIC33FJ256GP510A-E/PT
✅ Drop-In✓ In Stock
$9 / Unit
View Datasheet →DSPIC33FJ256GP506AT-I/PT
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$4.95 / Unit
View Datasheet →DSPIC33FJ128GP510A-I/PT
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33FJ64GP510A-I/PT
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33FJ256MC510A-I/PT
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33FJ256GP510A-I/PT Maximum Ratings & Electrical Characteristics
| Core | 16-bit dsPIC33F RISC with DSP engine |
| Max Operating Speed | 40 MIPS |
| Flash Memory | 256 KB (256K x 8) |
| SRAM | 30 KB |
| Supply Voltage | 3.3 V |
| Package | 100-TQFP (12 x 12 mm) |
| Number of Pins | 100 |
| Mounting Type | Surface Mount |
| ADC Resolution | 10-bit or 12-bit (two ADC modules) |
| ADC Sample Rate | 1.1 Msps (10-bit) / 500 ksps (12-bit) |
| Analog Inputs (100-pin) | Up to 32 |
| ICSP Programming | Yes, multiple PGECx/PGEDx pairs |
| Operating Temperature | -40C to +85C (I grade) |
| Qualification | AEC-Q100 qualified family (automotive) |
| Packaging | Tray |
| RoHS Status | Compliant |
| Compiler Support | MPLAB XC-DSC C/C++ |
DSPIC33FJ256GP510A-I/PT 100-tqfp (12 x 12 mm) Pin Configuration Guide
Pin configuration for DSPIC33FJ256GP510A-I/PT (100-tqfp (12 x 12 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 DSPIC33FJ256GP510A-I/PT.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33FJ256GP510A-I/PT is suitable for 6 applications: Industrial Motor Control and Power Conversion, Automotive and Industrial Sensing Nodes, Audio Signal Processing, Precision Measurement and Data Acquisition, General-Purpose Embedded Control, Medical and Portable Instrumentation.
Industrial Motor Control and Power Conversion
The DSPIC33FJ256GP510A-I/PT fits industrial control nodes that combine real-time math with rich general I/O: its 40 MIPS 16-bit DSP engine executes control-loop filtering and transformations deterministically, while the two ADC modules (10-bit at 1.1 Msps or 12-bit at 500 ksps) with up to 32 analog inputs allow multi-channel current, voltage, and position feedback on one chip. In power-conversion monitoring and supervisory control, the DSC is typically placed as the system supervisor handling communication, sequencing, and closed-loop corrections between dedicated power stages. Independent ADC trigger sources permit precisely timed sampling synchronized to switching events, reducing measurement jitter. Because 256KB of Flash is on chip, complex state machines, bootloaders, and field-updatable firmware coexist without external memory, and the AEC-Q100-qualified family tolerates industrial environments.
Recommended
Automotive and Industrial Sensing Nodes
The dsPIC33FJ256GP510A family is explicitly listed as Automotive AEC-Q100 qualified by Arrow's product data, making the -I/PT grade suitable for sensing and control nodes that must survive -40C to +85C. The dual ADC architecture is the key fit: one module can continuously monitor slow-changing diagnostic channels while the other captures fast transients at 1.1 Msps (10-bit) with four sample-and-hold circuits for simultaneous multi-channel capture. With up to 32 analog inputs on 100-pin devices, a single DSC can aggregate many sensors without external multiplexers, cutting BOM cost. The 256KB Flash supports sensor linearization tables, self-test routines, and LIN/CAN-style communication stacks in one image. Designers should verify the grade (-I vs -E/PT for +125C) against the zone temperature of the mounting location.
Recommended
Audio Signal Processing
The general-purpose dsPIC33FJ256GP510A suits mid-range audio processing where a full DSP is overkill: the single-cycle 17-bit x 17-bit MAC with 40-bit accumulator implements IIR/FIR filters, sample-rate conversion, and gain staging in fixed point at 40 MIPS, comfortably handling multiple audio channels at standard sample rates. The 12-bit/500 ksps ADC mode can digitize audio-band signals and control inputs, while the GP peripherals provide serial links to external audio codecs. The 30KB SRAM holds delay lines and filter state without external RAM, and 256KB Flash stores tables, effects, and a bootloader. Because the GP variant lacks a dedicated audio codec interface, pair it with an external codec over the serial peripheral; the DSP engine then runs the processing pipeline deterministically without an RTOS-heavy software stack.
Recommended
Precision Measurement and Data Acquisition
For bench and industrial data-acquisition fronts, the DSPIC33FJ256GP510A-I/PT consolidates acquisition, conversion math, and communication in one 3.3V device. Two independent ADC modules allow simultaneous-rate operation: for example, one module sampling eight channels at 10-bit/1.1 Msps for transients while the other samples diagnostic channels at 12-bit/500 ksps. Flexible and independent ADC trigger sources let conversions fire from timers, comparators, or external events, ensuring deterministic sampling epochs. The 40 MIPS DSP engine applies offset/gain calibration, windowing, and FFT-based analysis on-chip, and the 100-pin TQFP exposes enough GPIO to control multiplexers, relays, and status indicators directly. AEC-Q100 family qualification and the -40C to +85C industrial grade support deployment in unconditioned environments.
Recommended
General-Purpose Embedded Control
As a general-purpose controller, the DSPIC33FJ256GP510A-I/PT replaces MCU-plus-external-memory combinations: 256KB Flash and 30KB SRAM on chip support large application images, parameter stores in emulated EEPROM, and a resident bootloader simultaneously. The 40 MIPS core executes time-critical ISRs with low jitter, and the flexible interrupt structure of the dsPIC33F architecture keeps communication stacks and control loops responsive. Development flow is fully supported by Microchip: MPLAB Snap connects via a two-wire ICSP interface using any PGECx/PGEDx pair, and the MPLAB XC-DSC compiler compiles ANSI C directly for the DSC. The Explorer 16/32 Development Board with a dsPIC PIM provides a low-cost modular evaluation path before board spin. AEC-Q100 family qualification adds margin for demanding commercial and industrial environments.
Recommended
Medical and Portable Instrumentation
Battery-operated and benchtop medical instruments benefit from the single-chip integration of the DSPIC33FJ256GP510A: one 3.3V device provides the 40 MIPS processing core, dual ADCs for physiological signal capture (500 ksps in 12-bit mode is adequate for many biosignal front ends after external amplification), and serial peripherals for USB-bridge, display, and telemetry links. The 100-pin TQFP provides sufficient GPIO for user interfaces and safety interlocks without expansion logic. On-chip 256KB Flash permits regulatory-friendly firmware versioning and encrypted update images. Because the family is AEC-Q100 qualified, it carries industrial-grade robustness practices into medical designs, though designers must complete their own IEC 60601 system qualification. Fixed-point DSP routines implement filtering and detection algorithms deterministically, simplifying validation documentation.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33FJ256GP510A-I/PT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33FJ256GP510A-I/PF | DSPIC33FJ128GP510A-I/PT | DSPIC33FJ256MC510A-I/PT |
|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 100-TQFP (12x12) | 100-TQFP (12x12) - same | 100-TQFP (12x12) - same | 100-TQFP (12x12) - same |
| Core Speed | 40 MIPS | 40 MIPS | 40 MIPS | 40 MIPS |
| Flash Memory | 256 KB | 256 KB | 128 KB (-50%) | 256 KB |
| Peripheral Family | GP (general purpose) | GP - same | GP - same | MC (motor-control PWM) |
| Temperature Grade | -40C to +85C (I) | -40C to +85C (I) | -40C to +125C (E) | -40C to +85C (I) |
Key Differentiators
- Largest Flash in the same 100-pin TQFP footprint (vs DSPIC33FJ128GP510A-I/PT)
- General-purpose peripheral set with full analog capability (vs DSPIC33FJ256MC510A-I/PT)
- Extended temperature option without redesign (vs DSPIC33FJ256GP510A-E/PT)
Design Notes
The dsPIC33FJ256GP510A requires all VDD/VSS pairs to be connected during programming and operation; per Microchip's NSDSP support documentation, all VSS and VDD pins must be wired for ICSP to work. Place a 100 nF ceramic decoupling capacitor at every VDD/VSS pair as close to the pins as possible, plus bulk capacitance near the supply entry. The 100-pin TQFP (12x12 mm) has 0.5 mm pin pitch - use a fine-pitch footprint per IPC land-pattern guidance and consider a slightly oversize mask opening to aid assembly yield.
ICSP wiring: the device has more than one PGECx/PGEDx pair, and pairs must be used as matched pairs - if PGEC2 carries ICSPCLK, then PGED2 must carry ICSPDAT. Mixing pins from different pairs is a common bring-up failure. Also, when migrating from non-A dsPIC33FJ parts to A-grade silicon, recompile and program the device as the A device; the community-confirmed migration path is not a binary drop of the old image.
Design the 3.3V rail for the full core + I/O budget at 40 MIPS; consult the family datasheetIDD tables rather than assuming a generic MCU figure. For mixed analog/digital boards, partition the ground return so ADC reference and analog input routing avoid switching-current loops, and use independent ADC trigger sources rather than software polling to keep sampling epochs deterministic. Estimated: allow headroom of at least 30% above the datasheet worst-case supply current when sizing the regulator.
The 100-pin TQFP (12x12 mm) dissipates modest power at 3.3V/40 MIPS, so dedicated heatsinking is normally unnecessary; thermal relief is achieved through the PCB. Provide at least one solid ground plane connected to the VSS pins via short thermal vias to spread heat and anchor return currents. Verify junction temperature against the -40C to +85C industrial rating of the -I grade; for ambient above +85C, switch to the -E/PT (-40C to +125C) grade rather than pushing the -I part beyond its rating.
Compliance Information
Arrow listing describes the dsPIC33FJ256GP510A family as Automotive AEC-Q100 qualified; findic.us also labels the part Automotive. RoHS/lead-free inferred from standard Microchip production packaging of this MPN; REACH and halogen-free status not stated in the retrieved data.
