DSPIC33FJ32GP102-I/SP - 16-Bit 16 MIPS DSC 32KB Flash | Microchip
MPN: DSPIC33FJ32GP102-I/SP ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $5.58 | $5.58 |
| 10 | $5.12 | $51.20 |
| 25 | $4.95 | $123.75 |
| 100 | $4.62 | $462.00 |
| 1,000 | $4.18 | $4,180.00 |
DSPIC33FJ32GP102-I/SP Overview
A digital signal controller combines the computational power of a digital signal processor (DSP) with the peripheral integration and control structure of a microcontroller (MCU). Within the semiconductor hierarchy, the dsPIC33F sits under the broader category of 16-bit microcontrollers and DSP ICs, serving as a single-chip solution for embedded control systems. The dsPIC33F General Purpose (GP) family from Microchip is specifically engineered to execute digital filter algorithms and high-speed precision digital control loops, making it ideal for applications that need to perform under pressure.
Key features include the modified Harvard architecture with a multiple internal bus structure and a barrel shifter, 32KB of self-programmable Flash for in-circuit and in-application programming, 2KB of on-chip RAM, and up to three external interrupts (two remappable). The device supports Peripheral Pin Select (PPS) via RPn remappable pins, allowing any remappable digital peripheral to be routed to any of the RPn pins - a major flexibility advantage for board-level routing.
Technical depth: the CMOS process device operates at a maximum clock frequency of 16 MHz (with internal PLL options per the dsPIC33FJ16(GP/MC)101/102 and dsPIC33FJ32(GP/MC)101/102/104 family datasheet, document 70000652F) and provides 5V-tolerant input pins, selectable open-drain outputs, and internal pull-ups. Debugging and programming are supported through the MPLAB X IDE with tools such as the MPLAB SNAP In-Circuit Debugger, using the In-Circuit Serial Programming (ICSP) interface.
Typical applications include digital power conversion, motor control sensing front-ends, sensor signal conditioning with digital filtering, industrial control loops, and general-purpose embedded control where DSP-class math is needed in a low-pin-count DIP footprint that is easy to prototype on breadboards and through-hole PCBs.
Design consideration: the supply range is strictly 3.0V to 3.6V, so 5V legacy peripherals must be interfaced through level shifting or by exploiting the 5V-tolerant input pins; verify pin tolerance in the datasheet before direct connection.
This page synthesizes distributor pricing, drop-in alternatives within the dsPIC33F family, and practical design notes not consolidated in the manufacturer datasheet. Pricing shown is as of 2026-09-27.
Drop-in alternatives for DSPIC33FJ32GP102-I/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-I/SP (same form factor and footprint) — differing in Core Architecture, Package, Operating Temperature, Mounting Type, Maximum CPU Speed.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33FJ32GP101-I/P
✅ Drop-In✓ In Stock
$3.63 / Unit
View Datasheet →DSPIC33FJ16GP102-I/SP
✅ Drop-In✓ In Stock
$2.85 / Unit
View Datasheet →DSPIC33FJ12GP202-I/SP
✅ Drop-In✓ In Stock
$2.69 / Unit
View Datasheet →DSPIC33FJ32GP202-I/SP
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33FJ64GP202-I/SP
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33FJ32MC102-I/SP
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33FJ16GP101-I/P
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33FJ32GP102-I/SP Maximum Ratings & Electrical Characteristics
| Core Architecture | 16-bit dsPIC33F DSC (RISC, modified Harvard) |
| Max CPU Speed | 16 MIPS |
| Max Clock Frequency | 16 MHz |
| Program Memory | 32KB (11K x 24) Flash |
| RAM Size | 2KB |
| Supply Voltage Range | 3.0 V to 3.6 V |
| Nominal Supply Voltage | 3.3 V |
| Package | 28-pin SPDIP (through-hole, 2.54 mm pitch) |
| Mounting Type | Through Hole |
| Operating Temperature | -40C to +85C (I grade) |
| Technology | CMOS |
| External Interrupts | 3 (two remappable) |
| Pin Features | 5V-tolerant pins, selectable open-drain, internal pull-ups, remappable RPn pins |
| Programming | In-Circuit and In-Application Programming (ICSP) |
| Debug Support | MPLAB X IDE with MPLAB SNAP / ICD (up to 3 complex data breakpoints) |
| Packaging | Tube |
DSPIC33FJ32GP102-I/SP 28-pin spdip (through-hole, 2.54 mm pitch) Pin Configuration Guide
Pin configuration for DSPIC33FJ32GP102-I/SP (28-pin spdip (through-hole, 2.54 mm pitch) 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-I/SP.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33FJ32GP102-I/SP is suitable for 6 applications: Digital Power Conversion, Sensor Signal Conditioning and Digital Filtering, Industrial Control and Automation, Embedded Prototyping and Education, Motor Control Sensing and Supervision, Consumer Appliance Control.
Digital Power Conversion
dsPIC33F devices are explicitly designed by Microchip to execute high-speed precision digital control loops, making the DSPIC33FJ32GP102-I/SP well suited for digitally controlled AC-DC and DC-DC power supplies. The 16-bit DSP core with barrel shifter executes PID and digital filter algorithms deterministically at up to 16 MIPS, while the 3.0V-3.6V CMOS core keeps controller power draw low. Remappable RPn pins let ADC-trigger, PWM-adjacent, and feedback I/O functions be routed to optimal physical pins, simplifying isolated power-supply PCB layouts. In a typical topology, the controller samples output voltage and current, executes the compensation loop in firmware, and drives the power stage through GPIO or remappable peripherals; deterministic interrupt latency is the key performance consideration.
Recommended
Sensor Signal Conditioning and Digital Filtering
The General Purpose dsPIC33F family is designed to execute digital filter algorithms, so the DSPIC33FJ32GP102-I/SP fits analog-front-end conditioning of noisy sensor signals: FIR/IIR filtering, RMS computation, and threshold decisions run in fixed-point arithmetic on the DSP core. The 32KB Flash accommodates filter coefficient tables and calibration data, while the 2KB RAM buffers sample windows. The device operates from a 3.3V rail shared with typical analog sensors, and 5V-tolerant input pins simplify interfacing with legacy 5V sensor outputs. The trade-off versus a pure MCU is lower maximum clock (16 MIPS class), so extremely high sample-rate filtering should verify MIPS budget in firmware before committing to this part.
Recommended
Industrial Control and Automation
In industrial control nodes, the DSPIC33FJ32GP102-I/SP provides the -40C to +85C industrial temperature grade required for factory-floor enclosures, along with in-circuit and in-application programming that enables field firmware updates without desoldering. Three external interrupts (two remappable) handle limit switches and fault inputs, and selectable open-drain outputs with internal pull-ups reduce external component count on I/O expansion. The 28-pin SPDIP through-hole package is advantageous for prototyping, legacy through-hole production, and repair-friendly designs on industrial PCBAs. Designers should budget the strict 3.0V-3.6V supply regulation and add transient protection on field-wired I/O lines.
Recommended
Embedded Prototyping and Education
The 28-pin SPDIP package with 2.54mm pitch makes the DSPIC33FJ32GP102-I/SP one of the few DSP-class 16-bit controllers that plugs directly into breadboards, sockets, and low-cost through-hole development boards. Microchip supports this exact device class with a low-cost 16-bit, 28-pin Starter Development Board designed for 28-pin PIC24 and dsPIC DSC devices, and the MPLAB X IDE plus MPLAB SNAP programmer provide free software tooling with fast debug cycles. This makes the part ideal for university labs, rapid proof-of-concept builds, and hobbyist DSP projects; the main consideration is that production surface-mount variants (-I/SO, -I/SS) will be needed when transitioning to volume SMT assembly.
Recommended
Motor Control Sensing and Supervision
While dedicated PWM drive belongs to the dsPIC33FJ MC (Motor Control) variants, the GP102 excels at the sensing and supervision side of motor systems: it can digitize current shunt and back-EMF feedback, run digital filters for ripple analysis, and supervise fault conditions with its three external interrupts. According to Microchip, dsPIC33F devices perform high-speed precision digital control loops under pressure, which covers electronicCommutation supervision and thermal protection logic. Pairing the GP102 with an MC-family sibling in the same pinout lets designers reuse one SPDIP-28 footprint across the product family. Verify PWM peripheral mapping in datasheet 70000652F Table 1 before attempting direct drive from the GP variant.
Recommended
Consumer Appliance Control
Appliance user interfaces, small pump and fan controllers, and sensor-based consumer products benefit from the DSPIC33FJ32GP102-I/SP's combination of DSP-class math in a low-cost, low-pin-count package. The 3.3V operation aligns with modern low-power designs, 5V-tolerant inputs accept legacy switch and encoder signals, and in-application programming supports feature updates in the field. The 32KB Flash is sufficient for control firmware plus a simple UI state machine, and the through-hole package simplifies repair-oriented appliance boards. Designers should confirm EMC robustness with proper decoupling and watch the 3.0V minimum supply rail under brownout conditions, adding a supervisor if mains dips are expected.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33FJ32GP102-I/SP — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33FJ32GP101-I/P | DSPIC33FJ16GP102-I/SP | DSPIC33FJ12GP202-I/SP | DSPIC33FJ32GP202-I/SP |
|---|---|---|---|---|---|
| Package | 28-pin SPDIP (through-hole) | 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 |
| Core / Performance | 16-bit dsPIC33F, 16 MIPS | 16-bit dsPIC33F, 16 MIPS | 16-bit dsPIC33F, 16 MIPS | 16-bit dsPIC33F, 16 MIPS | 16-bit dsPIC33F, 16 MIPS |
| Flash Memory | 32KB (11K x 24) | 32KB | 16KB | 12KB | 32KB |
| Supply Voltage | 3.0 V to 3.6 V | 3.0 V to 3.6 V | 3.0 V to 3.6 V | 3.0 V to 3.6 V | 3.0 V to 3.6 V |
| Operating Temperature | -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 Set | GP102 general purpose | GP101 (reduced) - same footprint | GP102 (same peripherals) | GP202 variant | GP202 variant |
Key Differentiators
- Twice the Flash of the 16KB sibling in the same DIP footprint (vs DSPIC33FJ16GP102-I/SP)
- Fuller GP peripheral set than the GP101 variant (vs DSPIC33FJ32GP101-I/P)
- Through-hole SPDIP prototyping convenience vs surface-mount siblings (vs DSPIC33FJ32GP102-I/SS)
Design Notes
The supply range is strictly 3.0V to 3.6V. Use a precision 3.3V LDO or buck regulator with adequate load transient response; do not power from a 5V rail through an unregulated divider. Add 0.1uF ceramic decoupling directly across the VDD/VSS pin pairs (pins 11/14/15 region) plus a 4.7uF-10uF bulk capacitor. Brownout behavior below 3.0V is not guaranteed - add a supply supervisor for mains-powered designs. Estimated: a dsPIC33F core drawing tens of mA at 3.3V stays well within a typical 100mA LDO budget.
Keep the OSC1/OSC2 crystal traces short and guard them with ground if electromagnetic environments are harsh (industrial sites). Because Peripheral Pin Select allows software-routing of RPn functions, route the physical traces first for signal integrity (clocks and interrupts away from power-stage noise) and then assign peripherals to those pins in firmware - PPS makes this practical. The through-hole SPDIP footprint also suits two-layer boards; place a solid ground plane under the controller region.
Do not assume the dsPIC33F family-wide 40 MIPS figure applies to this listing - verified distributor data states 16 MIPS / 16 MHz for the DSPIC33FJ32GP102-I/SP, so confirm the exact maximum clock and PLL configuration in the Microchip family datasheet (70000652F) before design sign-off. Also remember that 5V-tolerant applies to specific input pins only, not to the whole port structure; analog pins must not exceed VDD. When migrating between GP101/GP102/GP202 variants, recompile under the correct device selection and verify the peripheral mapping table.
Compliance Information
Compliance status was not stated in the provided verified web data; confirm RoHS/REACH certificates on the Microchip product page for the current date code.
