DSPIC33FJ128GP310A-E/PT - 16-bit DSC 40MIPS 128KB AEC-Q100 | Microchip
MPN: DSPIC33FJ128GP310A-E/PT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $8.42 | $8.42 |
| 10 | $7.62 | $76.20 |
| 100 | $6.85 | $685.00 |
| 500 | $6.3 | $3,150.00 |
| 1,000 | $5.85 | $5,850.00 |
DSPIC33FJ128GP310A-E/PT Overview
A Digital Signal Controller combines the compute architecture of a Digital Signal Processor (DSP) with the peripheral integration and ease of use of a microcontroller (MCU). In the system hierarchy: DSC -> 16-bit MCU family -> embedded processor -> semiconductor. The dsPIC33F family uses a modified Harvard architecture with a C-compiler-optimized 16-bit-wide data path and 24-bit-wide instructions, sitting between general-purpose MCUs and dedicated DSPs.
Key features include 16 x 16 fractional/integer multiply operations, DSP engine support for digital filter algorithms and high-speed precision digital control loops, dual supply operation at 3.3V, and an on-chip codec interface suited to speech and audio processing. The A suffix in the part number denotes the A3 silicon revision of the dsPIC33FJXXXGPX06A/X08A/X10A general purpose family, and the -E suffix denotes AEC-Q100 automotive qualification for extended temperature.
Architecturally, the modified Harvard core allows simultaneous instruction and data fetches, enabling deterministic single-cycle MAC-class execution that makes the dsPIC33F ideal for real-time control loops such as FOC motor control and power factor correction.
Typical applications include automotive body and powertrain modules, motor control, digital power supplies, speech and audio processing, and industrial automation requiring 16-bit precision under pressure.
When designing, budget peripheral selection carefully: the 85-channel 12-bit ADC and multiple UART/SPI/I2C modules are shared across the 100-pin TQFP pin map, so confirm pin mapping in the datasheet before PCB routing.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
Drop-in alternatives for DSPIC33FJ128GP310A-E/PT — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33FJ128GP310A-I/PT
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33FJ128GP310A-E/PF
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33FJ256GP310A-E/PT
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33FJ64GP310A-E/PT
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33FJ128GP310A-E/PT Maximum Ratings & Electrical Characteristics
| Core Architecture | Modified Harvard, 16-bit RISC DSC |
| Maximum CPU Speed | 40 MIPS |
| Flash Memory | 128 KB (128K x 8) |
| RAM | 16 KB |
| Supply Voltage | 3.3 V |
| Operating Temperature | -40C to +125C |
| Qualification | AEC-Q100 (automotive) |
| Series | dsPIC33FJ General Purpose (dsPIC33FJXXXGPX06A/X08A/X10A) |
| Package | 100-TQFP (12x12 mm) |
| Mounting Type | Surface Mount |
| Multipliers | 16 x 16 fractional/integer multiply |
| Instruction Width | 24-bit |
| Application Focus | Digital filter algorithms, high-speed precision digital control loops |
| RoHS Status | Compliant |
| Packaging Type | Tray |
| Automotive Grade | Yes (AEC-Q100 qualified) |
DSPIC33FJ128GP310A-E/PT 100-tqfp (12x12 mm) Pin Configuration Guide
Pin configuration for DSPIC33FJ128GP310A-E/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 DSPIC33FJ128GP310A-E/PT.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33FJ128GP310A-E/PT is suitable for 6 applications: Automotive Motor Control, Speech and Audio Processing, Digital Power Supplies, Industrial Automation and Control, Sensor Signal Conditioning and DAQ, Automotive Body Electronics.
Automotive Motor Control
The DSPIC33FJ128GP310A-E/PT's AEC-Q100 qualification and -40C to +125C range make it directly deployable in automotive motor control ECUs such as HVAC blowers, pumps, and throttle actuators. Its 40 MIPS core with single-cycle 16 x 16 fractional multipliers executes field-oriented control (FOC) loops at PWM frequencies of 16 kHz or higher with deterministic latency. The 100-pin TQFP supplies ample GPIO for gate-drive logic, rotor position sensing, and CAN/LIN interfaces. Running from 3.3V with 128 KB Flash, the controller holds both the control algorithm and diagnostics. Placed between the position sensor front-end and the gate driver stage, it adds no external DSP chip, cutting BOM cost versus discrete DSP-plus-MCU designs while meeting automotive thermal requirements.
Recommended
Speech and Audio Processing
According to the Microchip family description, dsPIC33F general purpose devices with codec interfaces are well-suited for speech and audio processing, and the DSPIC33FJ128GP310A-E/PT is the 100-pin flagship of that class. Its 40 MIPS DSP engine executes FIR/IIR filters and FFT routines with single-cycle MAC operations, while the 12-bit ADC covers microphone and line-input acquisition. The 100-pin TQFP provides enough peripherals to interface external audio codecs over SPI/I2C plus multiple UARTs for command channels. In a typical voice-band system, the DSC samples at 8-16 kHz, applies noise suppression and echo cancellation, and outputs processed audio - all within the 16 KB RAM budget for moderate filter lengths.
Recommended
Digital Power Supplies
High-speed precision digital control loops are a headline design target of the dsPIC33F family, and the DSPIC33FJ128GP310A-E/PT's 40 MIPS core with 16 x 16 integer multipliers closes current-mode loops at hundreds of kHz switching frequencies. Its fast 12-bit ADC with multiple sample-and-hold channels samples inductor current and output voltage simultaneously, feeding compensator code executed within one PWM period. The 100-pin TQFP exposes enough PWM outputs for interleaved multi-phase converters and UART/SPI links for PMBus-style telemetry. Placed directly driving the PWM gate interfaces, this DSC eliminates analog compensator trimming, enabling firmware-adjustable loop tuning and adaptive mode changes that analog controllers cannot match.
Recommended
Industrial Automation and Control
Industrial controllers benefit from the DSPIC33FJ128GP310A-E/PT's combination of 128 KB Flash, 40 MIPS throughput, and rich peripheral set on the 100-pin TQFP: multiple UARTs, SPI, I2C, and a parallel master port for HMI or FPGA connectivity. Its 85 ADC channels allow dense analog sensor integration - pressure, temperature, and current sensing - in a single chip, while the DSP engine runs notch filtering and harmonic analysis for condition monitoring. Operating from 3.3V with surface-mount 100-pin TQFP construction, it integrates into standard SMT industrial PCBA flows. In a typical PLC or sensor hub role, one DSC replaces separate ADC, filter, and MCU chips, reducing board area and component count.
Recommended
Sensor Signal Conditioning and DAQ
With 85 ADC input channels, the DSPIC33FJ128GP310A-E/PT is a strong fit for multi-channel data acquisition and sensor conditioning modules. The 40 MIPS DSP engine performs per-channel digital filtering - averaging, IIR rejection, and FFT-based feature extraction - that offloads a host processor or eliminates it entirely. The 100-pin TQFP supplies SPI and UART links for upstream communication to SCADA or gateway nodes. Sampled data flows through the DMA-capable ADC into the 16 KB RAM ring buffer, allowing continuous acquisition at sample rates sufficient for vibration and acoustic monitoring. Firmware-based linearization for thermocouples and RTDs executes easily within the 128 KB Flash budget, making the single-chip DAQ node both compact and field-updatable.
Recommended
Automotive Body Electronics
AEC-Q100 qualification makes the DSPIC33FJ128GP310A-E/PT suitable for body control modules, lighting controllers, and gateway sub-nodes in vehicles. Its -40C to +125C grade survives under-hood-adjacent environments, while the 40 MIPS core handles LIN/UART protocol stacks plus real-time tasks such as LED PWM dimming and load diagnostics. The 100-pin TQFP provides ample GPIO and multiple ADC channels to monitor switch inputs, currents, and temperature sensors simultaneously. Firmware routines for wake-up management, fault latching, and network re-spawn fit comfortably in 128 KB Flash with room for OTA-style update frameworks. Consolidating control, sensing, and networking in one DSC reduces the module's component count versus discrete MCU-plus-DSP approaches.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33FJ128GP310A-E/PT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33FJ128GP310A-I/PT | DSPIC33FJ128GP310A-E/PF | DSPIC33FJ256GP310A-E/PT | DSPIC33FJ64GP310A-E/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 |
| Flash Memory | 128 KB | 128 KB | 128 KB | 256 KB | 64 KB |
| CPU Speed | 40 MIPS | 40 MIPS | 40 MIPS | 40 MIPS | 40 MIPS |
| RAM | 16 KB | 16 KB | 16 KB | 16 KB | 16 KB |
| Supply Voltage | 3.3 V | 3.3 V | 3.3 V | 3.3 V | 3.3 V |
| Temperature Range | -40C to +125C | -40C to +85C (industrial) | -40C to +125C | -40C to +125C | -40C to +125C |
| AEC-Q100 Qualification | Qualified | Not qualified (industrial grade) | Qualified (E grade) | Qualified (E grade) | Qualified (E grade) |
Key Differentiators
- Automotive extended temperature grade in the identical footprint (vs DSPIC33FJ128GP310A-I/PT)
- Twice the program memory at zero PCB cost (vs DSPIC33FJ64GP310A-E/PT)
- Cost-optimized alternative exists without respin (vs DSPIC33FJ256GP310A-E/PT)
Design Notes
The dsPIC33FJ family uses dual internal supplies (1.8V core generated by the on-chip regulator, 3.3V I/O). Decouple VDDCORE/VDD with a 10 uF bulk plus 0.1 uF ceramic per rail, placed within 5 mm of the pins. Estimated: a 40 MIPS core draws roughly 40-60 mA typical; at 3.3V input this is about 0.2 W - no heatsink is needed, but maintain solid ground planes for ADC accuracy.
The 100-TQFP (12x12 mm) has 0.5 mm pitch leads. Route analog inputs away from PWM and clock traces; use a dedicated analog ground island tied to digital ground at a single point near the decoupling network. Keep VCAP/VDDCORE capacitor selection exactly per the Microchip family datasheet - an incorrect core capacitor is the most common cause of erratic brown-out behavior on dsPIC33F boards.
Do not confuse the -E (automotive extended temperature) and -I (industrial) grades: substituting an -I part into a -40C to +125C application violates the qualification. Also note the 'A' suffix denotes the A3 silicon revision; when migrating designs from the non-A dsPIC33FJ128GP310, review the Microchip silicon errata and re-verify affected peripherals before taping out.
Compliance Information
AEC-Q100 automotive qualification confirmed via datasheets.com part record. RoHS/lead-free inferred from current Microchip production status of the dsPIC33F family; REACH and halogen-free status not stated in provided data.
