DSPIC33FJ128GP310A-I/PF - 16-bit DSC 40MIPS 128KB Flash | Microchip
MPN: DSPIC33FJ128GP310A-I/PF ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $7.9 | $7.90 |
| 10 | $7.2 | $72.00 |
| 100 | $6.6 | $660.00 |
| 500 | $6.1 | $3,050.00 |
| 1,000 | $5.7 | $5,700.00 |
DSPIC33FJ128GP310A-I/PF Overview
A Digital Signal Controller combines the computational throughput of a Digital Signal Processor (DSP) with the peripheral integration and control ease of a microcontroller (MCU). Within the embedded hierarchy, the dsPIC33F General Purpose (GP) family sits in the broader category of 16-bit DSCs, which themselves are a branch of the microcontroller and semiconductor product space. DSCs are designed to execute digital filter algorithms and high-speed, precision digital control loops, making them ideal for applications that need to perform under pressure.
Key features of the GP310A variant include its 16-bit modified Harvard architecture with DSP engine supporting single-cycle MAC and 40-bit accumulators, codec interfaces (DCI) suited for speech and audio processing, advanced analog peripherals, and seamless migration paths. According to the Microchip datasheet family documentation, dsPIC33F devices are pin compatible with the PIC24H family and share a very high degree of compatibility with the dsPIC30F family, allowing easy migration between device families as computational resource and system cost requirements evolve. Multiple pairs of PGECx/PGEDx pins support In-Circuit Serial Programming (ICSP).
Typical applications include speech and audio processing (via the Data Converter Interface), digital power supplies, motor control, industrial automation, sensor fusion, and general-purpose embedded control where 40 MIPS of DSP headroom is needed. The Explorer 16/32 Development Board supports this device family through Plug-In Modules (PIMs) for rapid prototyping.
A key design consideration: use any PGECx/PGEDx pair for ICSP, but the chosen pair must be used together - for example, PGEC2 for ICSPCLK requires PGED2 for ICSPDAT.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
Drop-in alternatives for DSPIC33FJ128GP310A-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 DSPIC33FJ128GP310A-I/PF (same form factor and footprint) — differing in Package, Operating Temperature, Series, Packaging, RoHS Status.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33FJ128GP310A-E/PF
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33FJ256GP310A-I/PF
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33FJ64GP310A-I/PF
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33FJ128GP310-I/PF
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$4.48 / Unit
View Datasheet →DSPIC33FJ128GP310AT-I/PF
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$5.89 / Unit
View Datasheet →DSPIC33FJ128GP310A-I/PF Maximum Ratings & Electrical Characteristics
| Core | dsPIC33F, 16-bit |
| Maximum Speed | 40 MIPS |
| Program Memory (Flash) | 128 KB |
| RAM | 16 KB |
| Supply Voltage | 3.3 V |
| Operating Temperature | -40C to +85C (I grade) |
| Package | 100-pin TQFP |
| Mounting Type | Surface Mount |
| Product Type | Digital Signal Controller (DSC) |
| Series | dsPIC33FJ128GP310A (General Purpose family) |
| Programming | ICSP via PGECx/PGEDx pairs |
| Family Compatibility | Pin compatible with PIC24H; high compatibility with dsPIC30F |
| Packaging | Tray |
| RoHS Status | Compliant |
| Peripherals | Codec interface (DCI), advanced analog, DSP engine |
DSPIC33FJ128GP310A-I/PF 100-pin tqfp Pin Configuration Guide
Pin configuration for DSPIC33FJ128GP310A-I/PF (100-pin tqfp 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 DSPIC33FJ128GP310A-I/PF.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33FJ128GP310A-I/PF is suitable for 6 applications: Speech and Audio Processing, Digital Power Conversion, Motor Control, Industrial Automation and Control, Embedded Development and Prototyping, Sensor Signal Processing and Data Acquisition.
Speech and Audio Processing
The DSPIC33FJ128GP310A-I/PF fits speech and audio applications through its Data Converter Interface (DCI), which per Microchip's family documentation makes the GP family 'well-suited for speech and audio processing.' The 40 MIPS DSP engine with single-cycle MAC and 40-bit accumulators executes real-time FIR/IIR filtering, echo cancellation, and noise suppression on a 3.3V rail with 128 KB of Flash for codec libraries and application code. In a typical design the DCI connects directly to an external audio codec in master or slave mode, while the DSP core processes sample blocks in interrupts or DMA-driven buffers. Unlike a general-purpose MCU, the hardware DSP multiply-accumulate keeps filter loop cycles deterministic at 40 MIPS, avoiding software multiplier overhead.
Recommended
Digital Power Conversion
Digital switch-mode power supplies, LLC resonant converters, and PFC stages benefit directly from the DSPIC33FJ128GP310A's combination of a 40 MIPS 16-bit DSP core and fast control-loop capability. High-speed precision digital control loops are a stated design target of the dsPIC33F family per Microchip documentation. The on-chip high-speed ADCs sample voltage and current feedback, and the DSP engine executes proportional-integral compensator updates within a single PWM period at switching frequencies in the hundreds of kilohertz. PWM peripherals provide complementary outputs with dead-time control for half-bridge and full-bridge topologies. The 128 KB Flash accommodates multiple protection routines, soft-start state machines, and communication stacks (SMBus/PMBus-style) alongside the control code, all at 3.3V industrial temperature ratings.
Recommended
Motor Control
Sensorless BLDC, PMSM field-oriented control (FOC), and stepper drives exploit the DSPIC33FJ128GP310A's 40 MIPS throughput, advanced analog inputs, and PWM generation. Running FOC requires a current-loop execution every PWM cycle with Clarke/Park transforms and PI stages - operations that map naturally onto the single-cycle MAC DSP engine, keeping loop latency predictable at 3.3V supply levels. The 100-pin TQFP exposes abundant I/O for gate-driver interfacing, encoder or resolver inputs, and fault protection lines, which is a key advantage of the 310A pin-count tier over smaller 64-pin siblings. With 128 KB Flash, a full sensorless algorithm plus a UART/CAN-style communication interface fits with margin. Industrial ambient ranges from -40C to +85C (I grade) cover typical drive electronics enclosures.
Recommended
Industrial Automation and Control
Factory automation nodes - sensor conditioning, actuator control, small PLC logic, and HMI interfacing - are core use cases for the dsPIC33F General Purpose family, which Microchip positions as 'ideal for a wide variety of 16-bit MCU embedded applications.' The DSPIC33FJ128GP310A provides enough 40 MIPS headroom to run a control state machine plus digital filtering of noisy industrial sensor signals, while the rich 100-pin TQFP I/O count supports parallel interfaces to displays, keypads, and multiple UART/SPI/I2C buses for field communication. The 128 KB Flash holds protocol stacks and parameter tables; 16 KB RAM buffers telemetry. Operation from -40C to +85C suits unconditioned cabinets, and ICSP programming via any PGECx/PGEDx pair enables in-field firmware updates through a production fixture.
Recommended
Embedded Development and Prototyping
The DSPIC33FJ128GP310A family is directly supported by Microchip's Explorer 16/32 Development Board, a low-cost modular development system for 16-bit and 32-bit Microchip MCUs. Devices are mounted via Plug-In Modules (PIMs) for easy device swapping, and a PICtail Plus daughter card connector adds functionality such as audio, storage, or connectivity. For engineers evaluating the dsPIC33F GP family before PCB commitment, this ecosystem shortens bring-up: the 100-pin device programs through standard ICSP tools using any matched PGECx/PGEDx pair. The 40 MIPS core and 128 KB Flash mirror production targets, so prototype firmware ports to the DSPIC33FJ128GP310A-I/PF on the final PCB with minimal modification, and the pin compatibility with PIC24H devices preserves future migration options.
Recommended
Sensor Signal Processing and Data Acquisition
Precision sensor front ends - vibration monitors, load-cell conditioning, ultrasonic flow, and medical-style instrumentation - leverage the DSPIC33FJ128GP310A's advanced analog peripherals and DSP engine. The 40 MIPS core applies calibration, linearization, and digital filtering (IIR notch, moving-average, FFT-based analysis) to ADC samples in real time, tasks that would overwhelm a basic 16-bit MCU. The family's stated purpose of executing 'digital filter algorithms and high-speed precision digital control loops' maps directly onto these workloads. The 128 KB Flash stores multi-point calibration tables and self-test routines; 16 KB RAM buffers waveform captures for burst analysis. Supplying everything from a single 3.3V rail at -40C to +85C simplifies the power tree in portable and benchtop instruments alike.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33FJ128GP310A-I/PF — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33FJ128GP310A-E/PF | DSPIC33FJ256GP310A-I/PF | DSPIC33FJ64GP310A-I/PF | DSPIC33FJ128GP310-I/PF |
|---|---|---|---|---|---|
| Package | 100-pin TQFP | 100-pin TQFP - same | 100-pin TQFP - same | 100-pin TQFP - same | 100-pin TQFP - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Flash | 128 KB | 128 KB | 256 KB | 64 KB | 128 KB |
| Maximum Speed | 40 MIPS | 40 MIPS | 40 MIPS | 40 MIPS | 40 MIPS |
| Temperature Range | -40C to +85C (I) | -40C to +125C (E) | -40C to +85C (I) | -40C to +85C (I) | -40C to +85C (I) |
| Supply Voltage | 3.3 V | 3.3 V | 3.3 V | 3.3 V | 3.3 V |
| Silicon Revision | A-revision | A-revision | A-revision | A-revision | Original (non-A) |
| Relative Cost | Baseline | Premium (E grade) | Higher (2x Flash) | Lower (half Flash) | Similar or lower |
Key Differentiators
- Extended temperature option in identical footprint (vs DSPIC33FJ128GP310A-E/PF)
- Balanced memory at lowest cost in the 310A pin group (vs DSPIC33FJ256GP310A-I/PF)
- Current A-revision silicon (vs DSPIC33FJ128GP310-I/PF)
- Cost floor for the same 100-pin peripheral set (vs DSPIC33FJ64GP310A-I/PF)
Design Notes
Decouple the 3.3V supply with a 0.1 uF ceramic capacitor at each VDD/VSS pin pair, placed within 2-3 mm of the pins, plus at least one 4.7-10 uF bulk capacitor near the TQFP-100. The dsPIC33FJ family datasheet's pin diagram identifies all VDD/VSS pairs on the 100-pin package - connect every one; leaving VSS pins floating is a common cause of erratic ADC readings and brown-out resets. Keep the analog supply domain (AVDD/AVSS) filtered with an RC or ferrite bead from the digital rail to preserve ADC accuracy.
ICSP programming requires a matched PGECx/PGEDx pair: per programming documentation, if PGEC2 is used for ICSPCLK, ICSPDAT must connect to PGED2. Mixing pins from different pairs is the single most common bring-up failure on this family. Reserve a 5-pin (MCLR, VDD, GND, PGECx, PGEDx) header on the production PCB even if programming is done through a connector, and ensure MCLR has its 10 kOhm pull-up to VDD and any programming capacitor on the MCLR line is omitted per the programming specification.
Verify your regulator can supply the peak current of the 40 MIPS core plus all peripheral loads; consult the family datasheet electrical characteristics section for IDD at 40 MIPS before sizing the 3.3V rail. Do not exceed the absolute maximum VDD rating during power sequencing, and add a supervisor or use the internal brown-out reset so flash writes are never executed during a supply dip. Estimated: core current in the tens of milliamps at full speed leaves most of a typical 500 mA regulator for I/O loads, but confirm with datasheet IDD curves for your exact clock configuration.
When using the DCI codec interface or high-speed SPI for audio sampling, route codec bit-clock and frame-sync traces short and away from PWM outputs driving gate drivers, since dsPIC33F PWM edges couple strongly into adjacent parallel bus traces on dense 100-pin layouts. Series-terminate (22-33 ohm) long clock lines and keep the analog sensor traces on the opposite board side from switching nodes. Ground pour under the TQFP with thermal relief vias to the ground plane reduces both EMI and ground bounce.
Compliance Information
Distributor listing (onlinecomponents) identifies the part as RoHS Compliant; Microchip standard TQFP production is lead-free. REACH, halogen-free, and conflict-minerals declarations not stated in provided data - request Microchip's environmental certificate for this ordering code.
