DSPIC33FJ32GP102-E/ML - 16-bit DSC 32KB Flash 16MIPS QFN-28 | Microchip
MPN: DSPIC33FJ32GP102-E/ML ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $4.62 | $4.62 |
| 10 | $4.16 | $41.60 |
| 100 | $3.69 | $369.00 |
| 500 | $3.32 | $1,660.00 |
| 1,000 | $2.95 | $2,950.00 |
DSPIC33FJ32GP102-E/ML Overview
A digital signal controller combines the compute architecture of a microcontroller with the mathematical throughput of a DSP. The dsPIC33 family sits between general-purpose MCUs and dedicated DSPs in the embedded hierarchy: a 16-bit CPU, hardware multiply-accumulate (MAC), and division support let it run digital filters and high-speed control loops that would overwhelm an 8-bit MCU, while retaining Flash memory, interrupts, and peripheral sets familiar to MCU designers. Program with MPLAB X IDE using XC16 compiler; debug and flash via ICSP with tools such as MPLAB SNAP or ICD.
Key features include the 16 MIPS core at 3.3V, 32KB self-programmable Flash, 2KB RAM, up to three 16-bit timers, output-compare and input-capture channels, a 10-bit ADC (up to 500 ksps) with multiple conversion channels, UART and SPI/I2C peripherals, and remappable peripheral pins (PPS) that let engineers route UART, SPI, and other digital functions to flexible I/O. Five-volt-tolerant pins and up to 20 selectable open-drain outputs with internal pull-ups simplify 5V legacy interfacing.
The dsPIC33F core uses a modified Harvard architecture with a 24-bit instruction word and DSP engine providing single-cycle MAC and dual data fetches, which is what allows deterministic execution of FIR/IIR filter taps and PID loops at full 16 MIPS speed.
Typical applications include motor control and digital power supplies, sensor signal conditioning with on-board filtering, industrial automation nodes, and consumer appliances requiring precise closed-loop control. The -E/ML extended temperature and AEC-Q100 qualification per distributor listings make it suitable for automotive and harsh-environment designs.
Design tip: allocate the ADC sampling and PWM peripheral timings so control-loop ISR execution stays below 50% of CPU cycles, leaving headroom for communication stacks.
This page synthesizes distributor pricing context, verified drop-in alternatives within the dsPIC33FJ 28-QFN family, and practical design notes not found in the manufacturer datasheet.
Drop-in alternatives for DSPIC33FJ32GP102-E/ML — 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 DSPIC33FJ32GP102-E/ML (same form factor and footprint) — differing in Operating Temperature, Package, ADC, Core Architecture, RoHS Status.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33FJ12GP202-I/ML
✅ Drop-In✓ In Stock
$2.69 / Unit
View Datasheet →DSPIC33FJ32GP102T-I/ML
✅ Drop-In✓ In Stock
$2.15 / Unit
View Datasheet →DSPIC33FJ12MC202-I/ML
✅ Drop-In✓ In Stock
$4.66 / Unit
View Datasheet →DSPIC33FJ128MC804-E/ML
✅ Drop-In✓ In Stock
$4.05 / Unit
View Datasheet →DSPIC33FJ32GP302-I/ML
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33FJ16GS504-E/ML
✅ Drop-In✓ In Stock
$6.21 / Unit
View Datasheet →DSPIC33FJ32GP102-E/ML Maximum Ratings & Electrical Characteristics
| Core | dsPIC33F 16-bit DSC |
| Max CPU Speed | 16 MIPS |
| Flash Program Memory | 32KB (11K x 24) |
| RAM | 2KB |
| Supply Voltage | 3.3V (VDD) |
| Package | 28-VQFN (6x6 mm) with Exposed Pad |
| Operating Temperature | -40C to +125C (Extended, E) |
| Qualification | Automotive, AEC-Q100 |
| Series | dsPIC 33F (GP - General Purpose) |
| I/O Sink/Source | 10 mA or 6 mA pin-specific; up to 16 mA or 12 mA for non-standard VOH1 |
| 5V Tolerant Pins | Yes |
| Open-Drain Outputs | Up to 20 selectable |
| External Interrupts | Three (two are remappable) |
| Programming Interface | ICSP / In-Circuit Debug (2 I/O pins + reset) |
| Mounting Type | Surface Mount |
| Packaging | Tube |
DSPIC33FJ32GP102-E/ML 28-vqfn (6x6 mm) with exposed pad Pin Configuration Guide
Pin configuration for DSPIC33FJ32GP102-E/ML (28-vqfn (6x6 mm) with exposed pad 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 DSPIC33FJ32GP102-E/ML.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33FJ32GP102-E/ML is suitable for 6 applications: Digital Power Supplies, Motor Control (BLDC/PMSM Drives), Sensor Signal Conditioning and Filtering, Industrial Automation Nodes, Automotive Body and Auxiliary Control, Consumer Appliance Control.
Digital Power Supplies
The DSPIC33FJ32GP102-E/ML fits digital power supplies because its 16 MIPS dsPIC33F core executes the compensation-loop math (PID or 2p2z controllers) deterministically, while the 10-bit ADC and output-compare peripherals provide the sensing and PWM timing path. In a typical topology, the ADC samples the output voltage at switching-frequency rate and an ISR updates the duty cycle within a few microseconds, closing the loop in software. The 32KB Flash holds control code plus compensation tables, and the 2KB RAM buffers state variables. Because the -E/ML grade is rated -40C to +125C and AEC-Q100 qualified, it survives converter hot spots near inductors and power stages where consumer-grade MCUs drift out of spec.
Recommended
Motor Control (BLDC/PMSM Drives)
Sensorless BLDC and PMSM drives need fast, periodic control-loop execution, which is precisely the dsPIC33FJ design intent: the 16-bit DSP engine performs single-cycle multiply-accumulate operations for field-oriented control and digital filtering at full 16 MIPS. The GP102 implements commutation with output-compare PWM channels and input-capture for back-EMF zero-cross detection, while the 10-bit ADC reads phase currents and the DC bus. Using the -E/ML extended-temperature grade keeps the controller within spec near power semiconductors that heat the PCB above 85C. The 28-QFN 6x6 mm exposed-pad package also provides a low-inductance ground return, which reduces switching-noise coupling into analog sensing.
Recommended
Sensor Signal Conditioning and Filtering
Applications that digitize noisy analog sensors - pressure, load cells, accelerometers - benefit from the DSPIC33FJ32GP102-E/ML because the on-chip 10-bit ADC captures samples at up to 500 ksps-class rates and the DSP engine runs FIR/IIR filters in firmware without an external DSP. The remappable peripheral pins (PPS) let UART, SPI, and I2C route to whatever pads the PCB provides, simplifying board layout. 5V-tolerant inputs accept legacy 5V sensor outputs directly, and up to 20 selectable open-drain outputs with pull-ups handle shared diagnostic lines. The extended -40C to +125C range suits industrial and automotive sensor nodes exposed to engine bays or outdoor enclosures where consumer-grade silicon would exceed its limits.
Recommended
Industrial Automation Nodes
Factory-floor nodes - actuators, valve controllers, small conveyors - use the DSPIC33FJ32GP102-E/ML for its combination of deterministic control loops and communication peripherals. The UART, SPI, and I2C interfaces link to PLC I/O, displays, or RS-485 transceivers, while timers, input captures, and three external interrupts (two remappable) handle encoder and limit-switch feedback. The AEC-Q100 qualification and -40C to +125C rating provide the reliability margin demanded in electrically noisy industrial cabinets. In-circuit serial programming (ICSP) via two I/O pins plus reset allows firmware updates on assembled boards without desoldering, cutting field-service cost and enabling late-stage configuration changes during production line bring-up.
Recommended
Automotive Body and Auxiliary Control
The -E/ML grade combines AEC-Q100 qualification with a -40C to +125C operating envelope, meeting the temperature demands of under-dash and engine-bay-adjacent modules such as window lift controllers, lighting ballasts, pump drivers, and valve actuators. The 16 MIPS core closes solenoid and lamp diagnostic loops, while 5V-tolerant I/O interfaces directly with 12V-vehicle-referenced 5V sensor signals through simple dividers. The 32KB Flash accommodates OEM diagnostic code and OBD-style messaging over UART-based links. Designers should verify PPAP documentation availability with Microchip for formal automotive programs, since AEC-Q100 device screening is necessary but not sufficient for OEM release without production-part approval paperwork.
Recommended
Consumer Appliance Control
Appliances - rice cookers, blenders, fan heaters, espresso machines - pair a control MCU with triac/PWM drive and user interfaces. The DSPIC33FJ32GP102-E/ML covers this with a 16 MIPS control core, 10-bit ADC for temperature (NTC) and user-input sensing, output-compare PWM for heater and motor power, and UART/SPI for displays. The 3.3V core with 5V-tolerant pins bridges legacy 5V display drivers without level shifters, and the 28-QFN 6x6 mm footprint fits compact main-PCBs. Extended-temperature headroom (-40C to +125C) keeps the controller reliable near heater zones that push enclosed board temperatures past 85C, a common failure mode when consumer-grade -C parts are specified in thermal-proximity applications.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33FJ32GP102-E/ML — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33FJ12GP202-I/ML | DSPIC33FJ32GP102T-I/ML | DSPIC33FJ12MC202-I/ML | DSPIC33FJ128MC804-E/ML |
|---|---|---|---|---|---|
| Package | 28-VQFN (6x6 mm) ML, exposed pad | 28-VQFN (6x6 mm) ML - same | 28-VQFN (6x6 mm) ML - same | 28-VQFN (6x6 mm) ML - same | 28-VQFN (6x6 mm) ML - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core / Max Speed | dsPIC33F 16-bit, 16 MIPS | dsPIC33F 16-bit, 16 MIPS | dsPIC33F 16-bit, 16 MIPS | dsPIC33F 16-bit, 16 MIPS | dsPIC33F 16-bit, 16 MIPS |
| Flash Memory | 32KB (11K x 24) | 12KB | 32KB (11K x 24) | 12KB | 128KB |
| Operating Temperature | -40C to +125C (E grade) | -40C to +85C (I grade) | -40C to +85C (I grade) | -40C to +85C (I grade) | -40C to +125C (E grade) |
| Peripheral Family | General Purpose (GP) | General Purpose (GP) | General Purpose (GP) | Motor Control (MC) | Motor Control (MC) |
| Automotive / AEC-Q100 | Automotive, AEC-Q100 qualified | dsPIC33F family, I grade | dsPIC33F family, I grade | dsPIC33F family, I grade | E grade (extended temp) |
Key Differentiators
- Extended temperature range for hot environments (vs DSPIC33FJ32GP102T-I/ML)
- Largest Flash among the direct drop-in set (vs DSPIC33FJ12GP202-I/ML)
- General-purpose peripheral balance vs MC specialization (vs DSPIC33FJ12MC202-I/ML)
Design Notes
The 28-VQFN (ML) package has an exposed pad that must be soldered to a ground copper pour on the PCB - do not treat it as a no-connect. The pad provides the primary ground return and heat spreading; Microchip QFN layout guidance recommends a solder-mask-defined pad with an array of thermal vias (typically 4-9 vias of 0.3 mm) connecting to the ground plane. At 16 MIPS, the ground pad also supplies the low-inductance return path that keeps ADC noise low, so a floating pad commonly shows up as ADC jitter rather than obvious malfunction.
Decouple VDD with at least one 0.1 uF ceramic placed within 2 mm of the VDD pin plus one bulk 4.7-10 uF capacitor per Microchip layout guidance. The core is fed at 3.3V for this family (no external core regulator capacitor scheme like the 5V-tolerant PIC24H parts with VCAP), so verify VDD sequencing with any 5V-tolerant I/O sources: I/O pins tolerate 5V, but VDD must be present before 5V signals are applied for reliable operation. Brown-out behavior should be enabled in configuration words for automotive supply cranking profiles.
Use the remappable peripheral pin (PPS) feature to keep switching signals (PWM outputs) away from analog ADC input traces on the 6x6 mm QFN where trace lengths are short but coupling is high. Assign the ADC sampling channel to pins on the opposite side of the package from PWM outputs, and place an RC anti-aliasing filter (e.g., 1 kOhm / 1 nF, giving roughly 160 kHz corner) at the analog input. The three external interrupts (two remappable) should be reserved for time-critical encoder or zero-cross signals rather than polled switches.
Configuration-word mistakes are the most frequent bring-up failure on dsPIC33FJ parts: wrong oscillator settings (FRC vs primary crystal) leave the part at a lower clock than expected, and disabled debug bits lock out ICSP access until a bulk erase. When substituting a family alternative such as the GP202 for the GP102, the memory map changes (12KB vs 32KB Flash) - a GP102-linked hex file will not fit; rebuild from source with the correct device selected in MPLAB X / XC16 rather than reusing binaries.
Compliance Information
Distributor listings (Hotenda, Lisleapex) describe the part as Automotive, AEC-Q100 qualified, and RoHS-compliant lead-free surface mount. REACH and halogen-free status not stated in provided data - verify on Microchip product page.
