DSPIC33FJ32GP102-E/SP - 16-bit DSC 32KB Flash 16 MIPS | Microchip
MPN: DSPIC33FJ32GP102-E/SP ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $3.62 | $3.62 |
| 10 | $3.3 | $33.00 |
| 100 | $2.95 | $295.00 |
| 500 | $2.7 | $1,350.00 |
| 1,000 | $2.45 | $2,450.00 |
DSPIC33FJ32GP102-E/SP Overview
A Digital Signal Controller combines the compute architecture of a microcontroller with DSP-oriented features such as a hardware multiply-accumulate (MAC) engine, making it a hybrid between an MCU and a DSP. Within the power-management and control-system hierarchy, the dsPIC33F family sits alongside PIC24 16-bit microcontrollers, sharing the same core and peripherals but adding DSP instructions and a 40-bit wide accumulator for digital filter algorithms and high-speed precision digital control loops.
Key differentiating specifications include the 16 MIPS dsPIC33 core with RISC instruction set, 32 KB self-programmable Flash, 5V-tolerant I/O pins on selected pins, up to 20 selectable open-drain outputs, and three external interrupts (two remappable) with Peripheral Pin Select (PPS) remapping that lets designers route UART, SPI, I2C, and input-capture functions to flexible pins.
Architecturally, the device executes DSP filter algorithms and tight control loops efficiently thanks to single-cycle MAC, bit-reversed addressing, and dual operands, while the 2 KB RAM buffers control variables and communication frames. In-Circuit Serial Programming (ICSP) and In-Circuit Debug via MPLAB SNAP (or PICkit 3/4) use just two device I/O pins plus MCLR, easing field updates.
Typical applications include digital power supplies, motor control assists, sensor signal conditioning with digital filtering, industrial automation nodes, and general-purpose embedded control where 16-bit math throughput at 3.3V is required.
Design consideration: because this is the /SP through-hole SPDIP package in the extended-temperature E grade, verify board thermal targets and note the 3.3V supply rail tolerance when interfacing to 5V peripherals; 5V-tolerant input pins simplify such level interfacing without level shifters.
This page synthesizes distributor pricing, drop-in same-package alternatives, pinout data, and practical design notes not consolidated on the manufacturer product page.
Drop-in alternatives for DSPIC33FJ32GP102-E/SP — 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/SP (same form factor and footprint) — differing in Core Architecture, Operating Temperature, Package, Mounting Type, Maximum CPU Speed.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33FJ32GP102-I/SP
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$4.18 / Unit
View Datasheet →DSPIC33FJ32GP101-I/P
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$3.63 / Unit
View Datasheet →DSPIC33FJ16GP102-I/SP
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$2.85 / Unit
View Datasheet →DSPIC33FJ12GP202-I/SP
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$2.69 / Unit
View Datasheet →DSPIC33FJ16GS502-I/SP
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$3.18 / Unit
View Datasheet →DSPIC33FJ32GP102-E/SP Maximum Ratings & Electrical Characteristics
| Core Architecture | 16-bit dsPIC33F RISC DSC |
| Maximum CPU Speed | 16 MIPS (32 MHz instruction clock) |
| Program Memory (Flash) | 32 KB (11K x 24) |
| RAM | 2 KB |
| Supply Voltage | 3.3 V |
| Package | 28-pin SPDIP (0.300 in, 7.62 mm) |
| Operating Temperature | -40C to +125C (E grade) |
| Mounting Type | Through Hole |
| Packaging | Tube |
| Qualification | AEC-Q100 (automotive applications) |
| I/O Sink/Source | 10 mA or 6 mA pin-specific; up to 16 mA or 12 mA non-standard VOH1/VOL1 |
| 5V Tolerant Pins | Yes (selected pins) |
| Open-Drain Outputs | Up to 20 selectable, with pull-ups |
| External Interrupts | 3 (two remappable) |
| Programming / Debug | ICSP via MPLAB SNAP (8-pin SIL, 2 I/O + MCLR) |
| Family Series | dsPIC 33F |
DSPIC33FJ32GP102-E/SP Pin Configuration
| Pin 1 | MCLR — Master clear reset (active low) / programming voltage input |
| Pin 2 | AN0/VREF+/CN2/RB0 — Analog input 0 / positive voltage reference / change notification / port B bit 0 |
| Pin 3 | AN1/VREF-/CN3/RB1 — Analog input 1 / negative voltage reference / change notification / port B bit 1 |
| Pin 4 | AN2/SS1/CN4/RB2 — Analog input 2 / SPI1 slave select / change notification / port B bit 2 |
| Pin 5 | AN3/INDX/CN5/RB3 — Analog input 3 / encoder index input / change notification / port B bit 3 |
| Pin 6 | AN4/QEA/IC7/CN6/RB4 — Analog input 4 / quadrature A / input capture 7 / port B bit 4 |
| Pin 7 | AN5/QEB/IC8/CN7/RB5 — Analog input 5 / quadrature B / input capture 8 / port B bit 5 |
| Pin 8 | VSS — Ground reference |
| Pin 9 | OSC1/CLKI — Oscillator crystal input / external clock input |
| Pin 10 | OSC2/CLKO/RC15 — Oscillator crystal output / clock output / port C bit 15 |
| Pin 11 | RF4/SDA1/INT0 — Port F bit 4 / I2C1 data / external interrupt 0 (remappable RP pin) |
| Pin 12 | RF5/SDO1/U1TX — Port F bit 5 / SPI1 data out / UART1 transmit (remappable RP pin) |
| Pin 13 | RF6/SDI1/U1RX — Port F bit 6 / SPI1 data in / UART1 receive (remappable RP pin) |
| Pin 14 | RF7/SCK1 — Port F bit 7 / SPI1 clock (remappable RP pin) |
| Pin 15 | VDD — Positive supply (3.3 V) |
| Pin 16 | RF8/U1CTS — Port F bit 8 / UART1 clear-to-send (remappable RP pin) |
| Pin 17 | AN11/RP13 — Analog input 11 / remappable peripheral pin 13 |
| Pin 18 | AN10/RP12 — Analog input 10 / remappable peripheral pin 12 |
| Pin 19 | AN9/RP11 — Analog input 9 / remappable peripheral pin 11 |
| Pin 20 | VCAP/VDDCORE — Core voltage regulator capacitor connection |
| Pin 21 | PGED/RP2 — Programming/debug data / remappable peripheral pin 2 |
| Pin 22 | PGEC/RP3 — Programming/debug clock / remappable peripheral pin 3 |
| Pin 23 | RTCC/RP15 — RTCC alarm output / remappable peripheral pin 15 |
| Pin 24 | RP14/T2CK — Remappable peripheral pin 14 / Timer 2 external clock |
| Pin 25 | AN7/RP5 — Analog input 7 / remappable peripheral pin 5 |
| Pin 26 | AN6/RP4 — Analog input 6 / remappable peripheral pin 4 |
| Pin 27 | AVSS — Analog ground reference |
| Pin 28 | AVDD — Analog positive supply |
Typical Applications
DSPIC33FJ32GP102-E/SP is suitable for 6 applications: Digital Power Supply Control, Industrial Sensor Signal Conditioning, Prototyping and Education Boards, Motor Control Auxiliary Processing, Automotive Body and Comfort Nodes, Audio Signal Processing Front Ends.
Digital Power Supply Control
The DSPIC33FJ32GP102-E/SP suits digital power supplies because its 16 MIPS dsPIC33F core executes single-cycle multiply-accumulate operations needed for high-bandwidth voltage and current control loops. The 32 KB Flash accommodates compensation algorithms, nonlinear limiters, and communication stacks, while the -40C to +125C E grade survives power-stage thermal environments. The controller reads ADC feedback, computes duty-cycle corrections in software PID or 2P2Z loops, and drives PWM peripherals at switching frequencies typical of offline and DC-DC converters. Microchip's GS-family relatives (DSPIC33FJ16GS502) show the family pedigree in SMPS control; this GP variant works where general-purpose I/O flexibility and Peripheral Pin Select routing of capture/PWM signals simplify board design. The 3.3V rail pairs cleanly with gate-driver logic inputs.
Recommended
Industrial Sensor Signal Conditioning
In industrial sensor nodes, the DSPIC33FJ32GP102-E/SP digitizes transducer outputs via its analog inputs and applies digital filtering (FIR/IIR) using the hardware MAC engine, replacing discrete analog filter stages with reconfigurable firmware. The 2 KB RAM buffers rolling-window samples, and 5V-tolerant input pins directly accept signals from legacy 5V sensor outputs without level shifting. The extended -40C to +125C temperature range suits panels near motors, heaters, or outdoor enclosures. Peripheral Pin Select lets engineers map UART or SPI to whichever pins reach the connector, easing PCB routing on rev-A boards. With three external interrupts (two remappable), threshold-crossing alarms respond in hardware latency rather than polling time, and ICSP allows recalibration firmware updates in the field through the same two-wire programming interface.
Recommended
Prototyping and Education Boards
The 28-pin SPDIP through-hole package makes the DSPIC33FJ32GP102-E/SP ideal for breadboard prototyping, university labs, and hobbyist DSC experimentation, where socketed insertion and hand soldering are required. Microchip's own 28-pin Starter Development Board supports 28-pin PIC24 and dsPIC devices, validating this package's ecosystem role. Programmers such as MPLAB SNAP connect through a low-cost 8-pin SIL header using only two I/O pins plus MCLR, so students learn ICSP workflows on hardware they assemble themselves. The 16 MIPS core with DSP instructions demonstrates real digital-filter and control-loop concepts beyond 8-bit PIC16 capability, while the 32 KB Flash provides room for lab exercises, bootloader experiments, and RTOS trials without constant memory pressure or code-size optimization gymnastics.
Recommended
Motor Control Auxiliary Processing
While dedicated MC-family dsPICs lead BLDC/PMSM control, the DSPIC33FJ32GP102-E/SP handles auxiliary motor-control tasks: encoder processing using quadrature inputs (QEA/QEB on AN4/AN5), index counting (INDX on AN3), digital current-loop assist computations, and host communication. The 16 MIPS core executes Clarke/Park transforms in firmware for monitoring, and the 32 KB Flash holds protocol bridges between CAN/UART fieldbuses and the main drive controller. The E-grade temperature rating suits drive enclosures reaching +105C internals. 5V-tolerant pins interface directly with Hall-sensor and legacy encoder outputs. Remappable external interrupts capture fault signals (overcurrent, overtemperature) with deterministic latency, and the open-drain option on up to 20 pins simplifies wired-OR fault bussing across multiple drives sharing one fault line.
Recommended
Automotive Body and Comfort Nodes
With AEC-Q100-aligned qualification and a -40C to +125C E grade, the DSPIC33FJ32GP102-E/SP fits automotive body electronics such as seat-position sensing, lighting sequencing, and pump or actuator supervision, where 12V loads are switched by external drivers under DSC supervision. The 3.3V core rail derives from the vehicle's regulated 5V through an LDO, and 5V-tolerant inputs accept 5V sensor signaling directly. The 32 KB Flash stores diagnostics, NVM calibration, and LIN/UART messaging; remappable peripherals let one PCB design serve multiple trim levels by firmware. Three external interrupts with two remappable handle wake-up sources (door, key, light sensor). Designers should confirm the vehicle OEM's quiescent-current budget, since dsPIC33F sleep current must be reconciled with always-on body-node requirements per module specification.
Recommended
Audio Signal Processing Front Ends
The dsPIC33F architecture is designed to execute digital filter algorithms, and the DSPIC33FJ32GP102-E/SP applies this to low-rate audio processing: equalization, AGC, limiters, and simple effects in intercoms, PA heads, and industrial voice annunciators. The 40-bit accumulator preserves dynamic range through long FIR chains, and the 16 MIPS core processes multiple audio bands at typical 8-48 kHz sample rates within a single CPU. The 32 KB Flash stores coefficient tables for several EQ presets switched at runtime, while SPI connects to codec or audio ADC/DAC devices routed via Peripheral Pin Select. The 3.3V rail matches codec logic levels, and 5V-tolerant pins simplify mixed-supply boards. Board designers should allocate analog ground separation to AVSS/AVDD pins for converter noise performance.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33FJ32GP102-E/SP — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33FJ32GP102-I/SP | DSPIC33FJ32GP101-I/P | DSPIC33FJ16GP102-I/SP | DSPIC33FJ12GP202-I/SP | DSPIC33FJ16GS502-I/SP |
|---|---|---|---|---|---|---|
| Package | 28-pin SPDIP (0.300 in) | 28-pin SPDIP - same | 28-pin SPDIP - same | 28-pin SPDIP - same | 28-pin SPDIP - same | 28-pin SPDIP - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 32 KB (11K x 24) | 32 KB (11K x 24) | 16 KB | 16 KB | 12 KB | 16 KB |
| CPU Performance | 16 MIPS @ 32 MHz | 16 MIPS | 16 MIPS | 16 MIPS | 16 MIPS | 16 MIPS class |
| Operating Temperature | -40C to +125C (E grade) | -40C to +85C (I grade) | -40C to +85C (I grade) | -40C to +85C (I grade) | -40C to +85C (I grade) | -40C to +85C (I grade) |
| Peripheral Family | dsPIC33F General Purpose (GP) | GP - identical | GP | GP | GP | GS (digital power / SMPS-oriented) |
| Automotive Suitability | Yes (E grade, AEC-Q100 aligned) | No (industrial grade) | No (industrial grade) | No (industrial grade) | No (industrial grade) | No (industrial grade) |
Key Differentiators
- Extended -40C to +125C temperature grade (vs DSPIC33FJ32GP102-I/SP)
- Double the program memory of same-footprint siblings (vs DSPIC33FJ16GP102-I/SP)
- General-purpose peripheral set versus digital-power-specialized family (vs DSPIC33FJ16GS502-I/SP)
Design Notes
Supply the DSPIC33FJ32GP102-E/SP from a clean 3.3V rail with 0.1 uF ceramic decoupling directly across VDD/VSS (pins 15/8) and a second 0.1 uF at AVDD/AVSS (pins 28/27) with a small ferrite bead from VDD to AVDD for ADC noise isolation. The VCAP/VDDCORE pin (20) requires the datasheet-specified external capacitor for the internal core regulator - do not omit it or the device will not start. Estimated: with 16 MIPS operation and moderate I/O loading, core current stays in the tens-of-mA range, so a 100 mA LDO margin suffices.
In through-hole prototyping, keep the crystal loop (OSC1/OSC2, pins 9-10) as short as possible with the load capacitors grounded close to VSS pin 8. Route PGEC/PGED (pins 22/21) to an accessible 5-pin ICSP header (MCLR, VDD, GND, PGD, PGC) on every production board - Microchip design reuse across the dsPIC33F family depends on this standard header. Reserve Peripheral Pin Select assignments early: map UART/SPI RP pins before finalizing the schematic, since PPS registers are configured in firmware but physical routing is fixed in copper.
Do not exceed +125C junction conditions on the E grade by assuming the rating covers internal self-heating: at 16 MIPS with heavy I/O sourcing, add device dissipation to ambient temperature. Verify 5V-tolerance per pin - only selected pins tolerate 5V; arbitrary I/O exposure to 5V without checking the datasheet table risks latch-up. When substituting the /I grade variant, confirm your worst-case environment never exceeds +85C. Finally, code size must be re-verified before dropping to 16 KB alternatives (GP101/GP102-16/GS502), especially if self-programming reserves Flash boot blocks.
Compliance Information
Distributor listings (Lisleapex, Hotenda, Microchip USA) describe the part as AEC-Q100 compliant / suited for automotive applications. RoHS, REACH, lead-free and halogen status were not stated in the provided verified data.
