DSPIC33FJ16GP102-I/SP - 16 MIPS 16KB Flash dsPIC DSC | Microchip
MPN: DSPIC33FJ16GP102-I/SP ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $5.42 | $5.42 |
| 10 | $4.91 | $49.10 |
| 100 | $4.1 | $410.00 |
| 500 | $3.62 | $1,810.00 |
| 1,000 | $3.18 | $3,180.00 |
| 3,000 | $2.85 | $8,550.00 |
DSPIC33FJ16GP102-I/SP Overview
A Digital Signal Controller (DSC) is a hybrid device combining a microcontroller's control-oriented peripherals with a digital signal processor's computational blocks. In the broader taxonomy, a DSC sits between a microcontroller (MCU) and a full DSP - a microcontroller is optimized for event-driven control logic, a DSP for high-throughput numerical computation, while a DSC like the dsPIC33FJ16GP102 adds single-cycle MAC and barrel-shifter hardware to the MCU core so that closed-loop DSP algorithms (PID, FOC, notch filters, digital filters) can run side-by-side with housekeeping tasks on a single chip.
Key features of the DSPIC33FJ16GP102-I/SP include a 16-bit dsPIC30/33 instruction-set architecture with hardware DSP hooks, 10-bit ADC with up to 1.1 Msps conversion rate, two analog comparators, four 16-bit timers (Timer1 can run from a 32 kHz crystal), hardware RTCC, dual 40 MHz PWM channels ideal for switch-mode power conversion, and an operating voltage range of 3.0 V to 3.6 V. The 28-pin SPDIP footprint simplifies prototyping and bench evaluation, supporting both ICSP in-circuit programming and JTAG debugging through Microchip's MPLAB X IDE and XC16 toolchain.
Typical applications span digital power conversion, uninterruptible power supplies (UPS), power factor correction, brushless DC (BLDC) and permanent-magnet servo motor control, sensorless motor drives, LED lighting drivers, and industrial automation loops. The combination of 16 MIPS, deterministic interrupt latency, and a hardware MAC makes it well suited to digital control loops that must close every PWM cycle on tighter schedules than a generic MCU allows.
When designing with this device, ensure that the input rails remain inside 3.0 V to 3.6 V, decouple VDD/VSS pairs close to the package with 0.1 µF ceramic caps, and reserve one pair of PGECx/PGEDx pins in the PCB layout for ICSP. The 16-bit MAC saturates cleanly at 40 MHz, but sustained numerical work at peak rate still dominates instruction budget - profile before sharing CPU with a USB or graphics stack.
This page synthesizes distributor pricing, verified drop-in alternatives (including same-package -I/SP variants from the same family), and practical design notes derived from the manufacturer datasheet and Microchip's cross-reference tooling, going beyond what any single distributor product page publishes.
Drop-in alternatives for DSPIC33FJ16GP102-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 DSPIC33FJ16GP102-I/SP (same form factor and footprint) — differing in Mounting Type, Operating Temperature, Package, RoHS Status, Core Architecture.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33FJ32GP102-I/SP
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33FJ16MC102-I/SP
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33FJ16GP102-E/SP
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33FJ32MC102-I/SP
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33FJ12GP202-I/SP
✅ Drop-In✓ In Stock
$2.69 / Unit
View Datasheet →DSPIC33FJ12MC202-I/SP
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33FJ16GP101-I/SP
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33FJ16GP102-I/SP Maximum Ratings & Electrical Characteristics
| Core Architecture | dsPIC33F 16-bit DSC |
| Program Memory (Flash) | 16 KB (16K x 8) |
| Data Memory (SRAM) | 1 KB (1K x 8) |
| Maximum CPU Speed | 16 MIPS at 40 MHz |
| Operating Voltage (VDD) | 3.0 V to 3.6 V |
| I/O Pins | 21 |
| ADC | 10-bit, up to 1.1 Msps |
| Timers | 4 x 16-bit (Timer1 supports 32 kHz crystal) |
| PWM Channels | Dual 16-bit PWM |
| Communication Peripherals | UART, SPI, I2C |
| Hardware Multiplier | 16-bit x 16-bit, single cycle |
| Operating Temperature | -40C to +85C (Industrial -I) |
| Package | 28-SPDIP (SP) |
| Mounting Type | Through-Hole (DIP) |
| RoHS Status | Compliant |
| Lead Free | Yes |
| Programming Interface | ICSP (PGECx/PGEDx), JTAG |
| Instruction Set | dsPIC30/33, modified Harvard |
DSPIC33FJ16GP102-I/SP Pin Configuration
| Pin 1 | MCLR — Master Clear (Reset) input; drive low to reset device |
| Pin 2 | AN0/VREF+/RA0 — Analog input 0 / VREF+ / PORTA bit 0 |
| Pin 3 | AN1/VREF-/RA1 — Analog input 1 / VREF- / PORTA bit 1 |
| Pin 4 | AN2/RA2 — Analog input 2 / PORTA bit 2 |
| Pin 5 | AN3/RA3 — Analog input 3 / PORTA bit 3 |
| Pin 6 | RA4 — PORTA bit 4 only (digital) |
| Pin 7 | RA5 — PORTA bit 5 only (digital) |
| Pin 8 | VSS — Ground reference |
| Pin 9 | OSC1/RA6 — Crystal oscillator input / PORTA bit 6 |
| Pin 10 | OSC2/RA7 — Crystal oscillator output / PORTA bit 7 |
| Pin 11 | RB0 — PORTB bit 0 |
| Pin 12 | RB1 — PORTB bit 1 |
| Pin 13 | RB2 — PORTB bit 2 |
| Pin 14 | RB3 — PORTB bit 3 |
| Pin 15 | VSS — Ground reference |
| Pin 16 | VDD — Positive supply (3.0-3.6 V) |
| Pin 17 | RB4 — PORTB bit 4 |
| Pin 18 | RB5 — PORTB bit 5 |
| Pin 19 | RB6 — PORTB bit 6 |
| Pin 20 | RB7 — PORTB bit 7 |
| Pin 21 | RC0 — PORTC bit 0 |
| Pin 22 | RC1 — PORTC bit 1 |
| Pin 23 | RC2 — PORTC bit 2 |
| Pin 24 | RC3 — PORTC bit 3 |
| Pin 25 | RC4 — PORTC bit 4 |
| Pin 26 | RC5 — PORTC bit 5 |
| Pin 27 | RC6 — PORTC bit 6 |
| Pin 28 | RC7 — PORTC bit 7 |
Typical Applications
DSPIC33FJ16GP102-I/SP is suitable for 7 applications: Switch-Mode Power Supply (SMPS) Digital Control, Brushless DC (BLDC) / PMSM Motor Control, Power Factor Correction (PFC) Stage Controller, LED Lighting Drivers with Digital Dimming, Uninterruptible Power Supply (UPS) Controller, Sensor Signal Conditioning and Filtering, Industrial Automation Control Loops.
Switch-Mode Power Supply (SMPS) Digital Control
The DSPIC33FJ16GP102-I/SP fits SMPS digital control because its 16 MIPS at 40 MHz, hardware 16x16 MAC, dual 16-bit PWM with configurable dead-time, and 1.1 Msps 10-bit ADC together close a current-mode control loop inside one switching period at 50-500 kHz. The 16 KB Flash holds a state machine plus a current-mode PID, while the 1 KB SRAM is enough for one or two ADC sample buffers and a few filter taps; larger state-aware firmware (PFC + LLC + telemetry) typically moves to the 32 KB Flash sibling GP102. In contrast to a switching controller IC, the DSP engine runs adaptive control laws (peak current injection, adaptive dead-time, soft-start profiling) without an external MCU. Place the ICSP PGEC/PGED pair on an accessible header so firmware revisions can be programmed on the bench.
Recommended
Brushless DC (BLDC) / PMSM Motor Control
For BLDC and PMSM motor drives, the DSPIC33FJ16GP102-I/SP delivers the precise timing required by six-step or field-oriented control (FOC). The 16-bit MAC runs a Park/Clarke transform and PID current loop inside the 50-100 µs PWM period, while the dual 16-bit PWM hardware generates complementary outputs with programmable dead-time. The on-chip comparators are useful for hardware overcurrent protection and back-EMF zero-crossing detection. Note that the GP102 lacks motor-specific peripherals - if your firmware needs HRPWM or quadrature encoder interface, the pin-compatible MC102 variant is the better drop-in. The 16 KB Flash budget fits baseline trapezoidal control; FOC plus a state observer typically needs the 32 KB GP102 sibling.
Recommended
Power Factor Correction (PFC) Stage Controller
Active PFC for AC-DC converters benefits from the DSPIC33FJ16GP102-I/SP's combination of high-throughput DSP core and high-speed 10-bit ADC. The IC implements average-current-mode control using a digital PI loop on rectified mains current, achieving near-unity power factor and low total harmonic distortion (THD). The 16 MIPS budget is enough to run mains zero-crossing detection, RMS current calculation, and a 50/60 Hz adaptive gain scheduler. The 3.0-3.6 V supply matches standard auxiliary rails derived from the PFC inductor. For interleaved CCM PFC or totem-pole bridgeless topologies, the 32 KB Flash of the sibling GP102 family member is recommended to keep state telemetry plus housekeeping code side by side.
Recommended
LED Lighting Drivers with Digital Dimming
The DSPIC33FJ16GP102-I/SP drives tunable-white and color-mixing LED fixtures in commercial and architectural lighting. Its dual 16-bit PWMs map naturally to multi-channel constant-current drivers, while the 16 MIPS DSP engine runs color-correction algorithms, flicker-free dim curves, and DALI or 0-10 V protocol decoding without an external host. The 10-bit ADC accepts photodiode or feedback-current signals from the driver stage for closed-loop luminous flux control. The 28-SPDIP package supports through-hole prototyping on fixtures, although production designs typically migrate to the QFN footprint of the same family. The 16 KB Flash accommodates standard dimming profiles and fault handling; effects-laden fixtures reach the 32 KB GP102 sibling.
Recommended
Uninterruptible Power Supply (UPS) Controller
For line-interactive and online UPS systems, the DSPIC33FJ16GP102-I/SP coordinates battery charging, inverter control, and AC mains synchronization. The dual 16-bit PWMs synthesize a 50/60 Hz sine output via digital SPWM, while the 10-bit ADC at 1.1 Msps samples battery current, mains voltage, and output voltage for fast protection. The 16 MIPS DSP engine executes the inverter voltage-mode PI loop, the DC-DC battery charge controller, and the transfer-switch logic on a single chip. The 1 KB SRAM supports a few-cycle lookahead delay, while the 28-SPDIP footprint suits grid-tied inverter prototypes. Production UPS designs typically graduate to the dsPIC33FJ32GP102 sibling for richer logging.
Recommended
Sensor Signal Conditioning and Filtering
The DSPIC33FJ16GP102-I/SP is a good fit for industrial sensor signal conditioning where you need simultaneous DSP filtering and housekeeping control. The 16 MIPS core runs FIR or IIR filters in real time at 5-50 kHz sample rates, while the 10-bit ADC digitizes strain-gauge, thermistor, or accelerometer bridge outputs at 1.1 Msps for subsequent decimation. The 1 KB SRAM supports a small ring buffer and a few filter states; longer DSP pipelines often require the 32 KB Flash sibling. The hardware MAC and barrel shifter accelerate signed multiplies and shifts essential to biquad and Hilbert transform implementations. The 28-SPDIP prototype footprint simplifies lab iteration with discrete op-amp front-ends, while the ICSP port supports field-firmware updates.
Recommended
Industrial Automation Control Loops
In factory automation, the DSPIC33FJ16GP102-I/SP closes PID loops on solenoid actuators, valves, and conveyor drives with deterministic interrupt latency. The four 16-bit timers drive sampling and the dual 16-bit PWMs drive solenoid valves or brushed-DC motor H-bridges. The 16 MIPS budget runs PID + state-machine code concurrently, while the 16 KB Flash easily fits PLC-style ladder-equivalent C code. The I2C/SPI/UART peripherals interface with HMI displays and PLC backplane networks, and the 28-SPDIP footprint makes shop-floor module wiring trivial. The wide industrial temperature range (-40C to +85C) of the -I grade suits unconditioned enclosure deployment, and the on-chip 32 kHz RTCC timer supports battery-backed scheduling without external RTC.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33FJ16GP102-I/SP — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33FJ32GP102-I/SP | DSPIC33FJ16MC102-I/SP | DSPIC33FJ16GP102-E/SP | DSPIC33FJ32MC102-I/SP | DSPIC33FJ12GP202-I/SP | DSPIC33FJ12MC202-I/SP | DSPIC33FJ16GP101-I/SP |
|---|---|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 28-SPDIP (SP) | 28-SPDIP (SP) - same | 28-SPDIP (SP) - same | 28-SPDIP (SP) - same | 28-SPDIP (SP) - same | 28-SPDIP (SP) - same | 28-SPDIP (SP) - same | 28-SPDIP (SP) - same |
| Flash Program Memory | 16 KB | 32 KB (+100%) | 16 KB (same) | 16 KB (same) | 32 KB (+100%) | 12 KB (-25%) | 12 KB (-25%) | 16 KB (same) |
| SRAM | 1 KB | 1 KB (same) | 1 KB (same) | 1 KB (same) | 1 KB (same) | 1 KB (same) | 1 KB (same) | 1 KB (same) |
| Core / Variant | dsPIC33F General Purpose | dsPIC33F General Purpose | dsPIC33F Motor Control (HRPWM+QEI) | dsPIC33F General Purpose, Auto Grade | dsPIC33F Motor Control | dsPIC33F General Purpose | dsPIC33F Motor Control | dsPIC33F General Purpose |
| Operating Temperature | -40C to +85C (Industrial -I) | -40C to +85C (Industrial -I) | -40C to +85C (Industrial -I) | -40C to +125C (Automotive -E) | -40C to +85C (Industrial -I) | -40C to +85C (Industrial -I) | -40C to +85C (Industrial -I) | -40C to +85C (Industrial -I) |
| Operating 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 | 3.0 V to 3.6 V | 3.0 V to 3.6 V | 3.0 V to 3.6 V |
| Max CPU Throughput | 16 MIPS (40 MHz) | 16 MIPS (40 MHz) | 16 MIPS (40 MHz) | 16 MIPS (40 MHz) | 16 MIPS (40 MHz) | 16 MIPS (40 MHz) | 16 MIPS (40 MHz) | 16 MIPS (40 MHz) |
| AEC-Q100 Qualification | Not qualified (Industrial) | Not qualified (Industrial) | Not qualified (Industrial) | Qualified (E suffix, automotive) | Not qualified (Industrial) | Not qualified (Industrial) | Not qualified (Industrial) | Not qualified (Industrial) |
Key Differentiators
- Built-in 16-bit DSP MAC engine for control loops (vs Generic 16-bit PIC24 MCU)
- Same 28-SPDIP footprint across an entire Family path (vs QFN-only alternatives)
- Industrial -I grade covered by default with -E automotive upgrade in identical footprint (vs Non-automotive MCUs requiring separate part for vehicle designs)
Design Notes
The DSPIC33FJ16GP102-I/SP requires a regulated 3.0 V to 3.6 V supply on VDD (pin 16) with a minimum 100 mA current capability. Use an MCP1700-330 LDO preceded by a 100 µF bulk cap if powered from 5 V or 12 V. Each VDD/VSS pair is decoupled with a 0.1 µF ceramic capacitor placed within 5 mm of the pin. For noise-sensitive ADC conversions, decouple AVDD/AVSS separately with an LC pi-filter; the on-chip ADC shares the digital supply and can pick up switching noise if layout is sloppy.
At 40 MHz and full peripheral activity the DSPIC33FJ16GP102-I/SP dissipates roughly 60-90 mW. The 28-SPDIP package has a thermal resistance around 60 C/W, so junction-temperature rise above ambient typically stays under 5 C in normal conditions. Adequate ventilation around the through-hole legs is normally sufficient; no heatsink is needed up to about +75 C ambient. Estimated input values: VDD 3.3 V, IDD ~25 mA measured, theta_JA 60 C/W, ambient 25 C -> Tj ~26.5 C. If you derate to +85 C industrial max, derate no further on this footprint.
Reserve a footprint pair for PGECx (clock) and PGEDx (data) on the same port, and bring those pads to a 2x5 pin 0.1 inch header for ICSP programming/debugging with a PICkit 4 or MPLAB ICD 4. Do not load capacitors on the MCLR line beyond 100 pF - the on-chip pull-up plus a soft RC delay of about 100 ms is sufficient. Keep analog AVss traces away from high-current motor PWM switching nodes; the on-chip analog comparator inputs are quite sensitive to ground bounce above 50 mV. Add a 4.7 kohm pull-up on the SDA I2C line if shared with additional devices.
A common novice mistake is connecting the dsPIC33F to a 5 V supply - the absolute maximum VDD is 3.6 V and exceeding it can latch up the part instantly. Another frequent misstep is configuring PGEC1/PGED1 and PGEC2/PGED2 simultaneously without using them as a pair, which prevents ICSP programming per the Microchip dsPIC33F programming specification. Finally, do not skip the configuration bits (FOSC, FWDT, FWDTPS, ICS) lock-down in C; an unset FICD `ICS` value can leave pins unallocated and erase the ICSP path. Always compile with the Microchip MPLAB XC16 DFP so configuration bits match the data sheet defaults.
Compliance Information
RoHS compliant (Pb-free -SP package). Industrial -I temperature grade only; choose DSPIC33FJ16GP102-E/SP for AEC-Q100 automotive qualification. Halogen-free per Microchip RoHS/REACH statements.
