DSPIC33FJ16GP102T-I/SS - 16-bit DSC, 16KB Flash, 40MHz | Microchip
MPN: DSPIC33FJ16GP102T-I/SS ✗ End of Life| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $3.85 | $3.85 |
| 10 | $3.45 | $34.50 |
| 100 | $2.97 | $297.00 |
| 500 | $2.58 | $1,290.00 |
| 1,000 | $2.2 | $2,200.00 |
| 2,100 | $1.95 | $4,095.00 |
DSPIC33FJ16GP102T-I/SS Overview
A Digital Signal Controller (DSC) is a hybrid architecture that merges a microcontroller's deterministic interrupt-driven peripherals with a DSP engine's single-cycle MAC (multiply-accumulate) and barrel shifter. In the broader taxonomy, a DSC belongs to microcontrollers -> microprocessors -> embedded controllers -> semiconductors. dsPIC33F DSCs specifically target real-time closed-loop control where the MAC unit performs one 16x16-bit multiplication per cycle, enabling IIR/FIR filters and PID compensators to execute with deterministic timing unavailable on general-purpose MCUs.
Key features of the DSPIC33FJ16GP102 include a 16-channel 10/12-bit ADC with on-chip sample-and-hold, up to 21 general-purpose I/O pins, four 16-bit timers, an input capture module, an output compare/PWM module, and three UART/SPI/I2C configurable serial interfaces. The 40 MHz maximum clock speed (10 MIPS effective from 4x PLL) gives it sufficient headroom for closed-loop motor control at moderate PWM frequencies. The Flash-based program memory supports self-programming under software control, enabling in-field firmware updates through the UART bootloader.
Architecturally, the DSPIC33FJ16GP102 uses a modified Harvard architecture with separate program and data paths, a 16-bit DSP engine, a 24-bit instruction word, and a barrel shifter for single-cycle normalized shifts. The integrated DSP instructions (ADD/SUB/MAC) operate on 40-bit accumulators to preserve precision during cascaded filter stages. Power management is provided through idle, sleep, and deep-sleep modes with multiple clock sources (FRC, LPRC, HS, XT) selectable via the OSCCON register.
Typical applications include BLDC/PMSM sensorless motor control, AC induction motor V/Hz drives, digital power conversion (PFC + LLC), audio effects processing, sensor signal conditioning with on-the-fly filtering, and industrial control loops. The 28-pin SSOP footprint and 3.3 V single supply make it suitable for compact, cost-sensitive industrial modules where a Cortex-M0/M0+ would lack DSP throughput. Companion parts commonly paired with it include the MCP1700 LDO regulator, MCP2551 CAN transceiver, and MCP4725 DAC for analog outputs in control applications.
When designing with the DSPIC33FJ16GP102, ensure that VDD decoupling uses a 100 nF ceramic capacitor within 5 mm of each VDD pin and a 10 uF bulk capacitor near the ICSP/VPP rail. Programming can be performed with the MPLAB Snap, PICkit 4, or MPLAB ICD 4 over the 4-wire ICSP interface (PGECx/PGEDx). Designers migrating from PIC24F to dsPIC33F gain access to single-cycle MAC and DSP intrinsics without changing the development toolchain. This page synthesizes distributor pricing, drop-in alternatives, and design notes not found in the manufacturer datasheet alone.
Drop-in alternatives for DSPIC33FJ16GP102T-I/SS — 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 DSPIC33FJ16GP102T-I/SS (same form factor and footprint) — differing in Package, Mounting Type, ADC, DSP Engine, Estimated EOL Date.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33FJ16GP102-I/SS
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33FJ16GP102T-I/SO
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33FJ16GP102T-I/ML
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33FJ16GP101-E/SS
✅ Drop-In✓ In Stock
$2.3 / Unit
View Datasheet →DSPIC33FJ32GP102-I/SS
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33FJ12MC202-I/SS
✅ Drop-In✓ In Stock
$2.62 / Unit
View Datasheet →DSPIC33FJ16GP102T-I/SS Maximum Ratings & Electrical Characteristics
| Architecture | dsPIC33F (16-bit DSC, modified Harvard) |
| Instruction Set | 16-bit DSP + 24-bit MCU instruction word |
| Max CPU Speed | 40 MIPS at 3.3 V |
| Program Memory (Flash) | 16 KB |
| Data RAM | 1 KB |
| Supply Voltage (VDD) | 3.0 V to 3.6 V |
| Operating Temperature | -40C to +85C (industrial, I grade) |
| I/O Pins | 21 |
| ADC | 16-channel, 10/12-bit, ~500 ksps |
| Timers | 4 x 16-bit |
| Input Capture | Yes (1 module) |
| Output Compare / PWM | Yes (1 module) |
| UART / SPI / I2C | 3 serial interfaces (configurable) |
| DSP Engine | Single-cycle MAC, 40-bit accumulator, barrel shifter |
| Package | 28-SSOP (5.30 mm width) |
| Mounting Type | Surface Mount, Tape & Reel |
| Lead-Free / Halogen-Free | Yes / Compliant |
| Country of Origin | Thailand |
| ECCN | 3A991.a.2 |
| Estimated EOL Date | 2026 |
DSPIC33FJ16GP102T-I/SS Pin Configuration
| Pin 1 | SDA/RPI24 — I2C data or remappable I/O |
| Pin 2 | SCL/RPI25 — I2C clock or remappable I/O |
| Pin 3 | OSCI/CLKI/RA0 — Oscillator crystal input or GPIO |
| Pin 4 | OSCO/CLKO/RA1 — Oscillator crystal output or GPIO |
| Pin 5 | VSS — Ground reference |
| Pin 6 | EMUD1/RB0 — ICD data 1 / remappable I/O |
| Pin 7 | EMUC1/RB1 — ICD clock 1 / remappable I/O |
| Pin 8 | VSS — Ground reference |
| Pin 9 | EMUD2/RB2 — ICD data 2 / remappable I/O |
| Pin 10 | EMUC2/RB3 — ICD clock 2 / remappable I/O |
| Pin 11 | RP04/RB4 — Remappable peripheral I/O |
| Pin 12 | RP05/RB5 — Remappable peripheral I/O |
| Pin 13 | VDD — Positive supply 3.0-3.6V |
| Pin 14 | RP06/RB6 — Remappable peripheral I/O |
| Pin 15 | RP07/RB7 — Remappable peripheral I/O |
| Pin 16 | RP08/RB8 — Remappable peripheral I/O |
| Pin 17 | MCLR — Master Clear reset (active low) |
| Pin 18 | RP09/RB9 — Remappable peripheral I/O |
| Pin 19 | VSS — Ground reference |
| Pin 20 | VDD — Positive supply 3.0-3.6V |
| Pin 21 | AN0/RP10/RB10 — ADC input 0 / remappable I/O |
| Pin 22 | AN1/RP11/RB11 — ADC input 1 / remappable I/O |
| Pin 23 | AN2/RPI12/RB12 — ADC input 2 / remappable I/O |
| Pin 24 | AN3/RPI13/RB13 — ADC input 3 / remappable I/O |
| Pin 25 | AN4/RPI14/RB14 — ADC input 4 / remappable I/O |
| Pin 26 | AN5/RPI15/RB15 — ADC input 5 / remappable I/O |
| Pin 27 | VDD — Positive supply 3.0-3.6V |
| Pin 28 | VSS — Ground reference |
Typical Applications
DSPIC33FJ16GP102T-I/SS is suitable for 6 applications: Brushless DC (BLDC) Motor Trapezoidal Control, Digital Power Conversion (PFC + LLC), Industrial Sensor Signal Conditioning, Audio Effects Processing and DFX, PV Inverter MPPT Controller, Portable Medical Monitoring Device.
Brushless DC (BLDC) Motor Trapezoidal Control
The DSPIC33FJ16GP102T-I/SS fits cost-sensitive BLDC motor drives where its 40 MIPS DSP core can execute commutation tables and PI speed loops in software without a dedicated motor-control PWM. The single Output Compare module generates one PWM channel suitable for trapezoidal commutation on 3-phase half-bridges using external gate drivers such as the MCP8026. The 16-channel ADC samples DC-bus current, back-EMF, and potentiometer feedback within each PWM period. Compared to a Cortex-M0 part, the single-cycle MAC accelerates rotor speed calculations during startup, reducing the firmware's interrupt latency requirements. The 28-SSOP footprint keeps the BOM small for appliances and HVAC blowers. Companion parts: MCP2551 ISP, MCP1700 LDO, MCP8026 gate driver.
Recommended
Digital Power Conversion (PFC + LLC)
The DSPIC33FJ16GP102T-I/SS is suitable for entry-level digital power supplies where its DSP engine executes average-current-mode PFC loops and soft-start ramping. With 40 MIPS throughput, the controller runs a 32-tap FIR filter on the AC line current waveform at 16 kHz switching frequency, while the 10-bit ADC samples the rectified line voltage and inductor current. The 1 KB of RAM stores a complete LUT for boost PFC coefficients and the LLC dead-time table. Compared to a fixed-frequency analog UC3842, the dsPIC33FJ adds adaptive valley skipping and cycle-by-cycle current limiting in firmware. Designers choose this part for sub-300 W PFC implementations where its 16 KB Flash is sufficient for the control law. Companion parts: MCP4725 DAC for analog monitoring, TC1411N MOSFET driver.
Recommended
Industrial Sensor Signal Conditioning
The DSPIC33FJ16GP102T-I/SS is ideal for multi-channel sensor signal conditioning modules used in factory automation and process control. The 16-channel 10-bit ADC scans thermocouples, RTDs, pressure transducers, and 4-20 mA loop inputs at up to 500 ksps, while the DSP engine performs real-time digital filtering to remove 50/60 Hz line noise. The 21 general-purpose I/O pins drive optocouplers and 24 V signal conditioning. Compared to a PIC18F4550, the dsPIC33FJ adds single-cycle MAC instructions that accelerate IIR filter execution and PID compensator math. The 28-SSOP package fits inside standard DIN-rail enclosure modules. Companion parts: MCP2551 CAN, MCP6002 op-amp for signal gain, MCP1700 LDO.
Recommended
Audio Effects Processing and DFX
The DSPIC33FJ16GP102T-I/SS enables low-cost audio effects pedals and consumer DFX modules where the single-cycle MAC engine runs biquad filters, chorus, flanger, and reverb algorithms at 48 kHz sample rate. The 40 MIPS throughput sustains a 4-stage cascaded biquad chain while leaving cycles for SPI communication with a CODEC such as the MCP4921. The I2S interface and DMA channels move audio samples with minimal CPU overhead. Compared to a generic 8-bit PIC, the dsPIC33F performs the multiply-accumulate operations per audio sample that would otherwise require a dedicated DSP chip. The 28-SSOP footprint keeps the PCB compact for stomp-box formats. Companion parts: MCP4921 DAC, MCP601 op-amp.
Recommended
PV Inverter MPPT Controller
The DSPIC33FJ16GP102T-I/SS works as the MPPT controller in sub-1 kW solar inverters where its DSP core executes perturb-and-observe or incremental-conductance MPPT algorithms each PWM cycle. The 16-channel ADC monitors PV panel voltage, current, and DC-bus voltage simultaneously, while the 1 KB SRAM stores the perturb-step history table. The PWM module drives the boost converter MOSFET through the TC1411N driver. Compared to analog MPPT controllers, the dsPIC33FJ adapts the perturb step size dynamically for varying irradiance, increasing harvested energy by 5-15%. The 3.3 V single supply simplifies the auxiliary power design. Companion parts: TC1411N gate driver, MCP2551 CAN, MCP1700 LDO.
Recommended
Portable Medical Monitoring Device
The DSPIC33FJ16GP102T-I/SS fits portable medical devices such as pulse oximeters, digital stethoscopes, and ECG front-ends where its DSP engine performs real-time DSP on bioelectric signals. The single-cycle MAC executes cascaded biquad bandpass filters to remove 50/60 Hz mains hum from ECG traces while preserving the 0.05-150 Hz diagnostic band. The 16-channel ADC samples multiple lead signals simultaneously at 1 kHz per channel. The 16 KB Flash stores the full feature set including SpO2 algorithms and Bluetooth control logic. Compared to a Cortex-M0+ part, the dsPIC33F's deterministic single-cycle MAC simplifies FDA 510(k) software verification documentation. The 28-SSOP package supports small handheld form factors. Companion parts: MCP1700 LDO, RN-42 Bluetooth module.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33FJ16GP102T-I/SS — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33FJ16GP102-I/SS | DSPIC33FJ16GP102T-I/SO | DSPIC33FJ16GP102T-I/ML | DSPIC33FJ16GP101-E/SS | DSPIC33FJ32GP102-I/SS | DSPIC33FJ12MC202-I/SS |
|---|---|---|---|---|---|---|---|
| Package | 28-SSOP (5.30 mm) | 28-SSOP (5.30 mm) - same | 28-SOIC (7.50 mm) - wider | 28-QFN (6x6 mm) - check footprint | 28-SSOP (5.30 mm) - same | 28-SSOP (5.30 mm) - same | 28-SSOP (5.30 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 16 KB | 16 KB | 16 KB | 16 KB | 16 KB | 32 KB (+100%) | 12 KB (-25%) |
| RAM | 1 KB | 1 KB | 1 KB | 1 KB | 1 KB | 2 KB (+100%) | 1 KB |
| Max MIPS | 40 MIPS at 3.3V | 40 MIPS | 40 MIPS | 40 MIPS | 40 MIPS | 40 MIPS | 40 MIPS |
| Motor Control PWM | No (general purpose) | No | No | No | No | No | Yes (with QEI + dead-band) |
| Temperature Grade | I grade (-40C to +85C) | I grade | I grade | I grade | E grade (-40C to +125C) | I grade | I grade |
| Price (qty 100) | $2.97 USD | ~$2.97 USD | ~$2.97 USD | ~$2.97 USD | ~$3.15 USD | ~$3.55 USD | ~$3.20 USD |
Key Differentiators
- Tape & Reel packaging matches automated SMT lines (vs DSPIC33FJ16GP102-I/SS)
- Industrial temperature grade -40C to +85C (vs DSPIC33FJ16GP101-E/SS)
- 16 KB Flash with general-purpose peripherals (vs DSPIC33FJ12MC202-I/SS)
- Lower memory footprint than 32 KB Flash variant (vs DSPIC33FJ32GP102-I/SS)
- Narrower PCB footprint vs SOIC alternative (vs DSPIC33FJ16GP102T-I/SO)
Design Notes
The DSPIC33FJ16GP102T-I/SS requires a clean 3.3 V supply between 3.0 V and 3.6 V. Place a 100 nF ceramic decoupling capacitor within 5 mm of each VDD pin (4 VDD pins total: 13, 20, 27 and any analog AVDD). Add a 10 uF bulk tantalum or ceramic capacitor near the ICSP VPP pin to support in-circuit programming transients. Using an MCP1700-3302E LDO provides 250 mA continuous output with 1.6 uA quiescent current, ideal for battery-powered applications.
Route the ICSP signals (PGECx, PGEDx, MCLR, VDD, VSS) to a 6-pin in-line header with 0.1 inch pitch. Keep PGECx/PGEDx traces short and parallel; place a 4.7 kohm pull-up resistor on MCLR. Avoid routing analog ADC inputs AN0-AN5 near PWM switching nodes - keep at least 10 mm separation and use a ground guard ring. For EMI-sensitive designs, place the 16 MHz crystal within 10 mm of the OSCI/OSCO pins with guard traces to VSS.
Do not apply 5 V signals to any digital I/O pin - the absolute maximum is VDD + 0.3 V (=3.9 V at 3.6 V supply). When migrating from PIC24F devices, note that the dsPIC33FJ16GP102 does not include an internal 5 V regulator or 5 V-tolerant I/O. The 16 KB Flash is sufficient for typical control loops but requires code-size optimization (use the MPLAB X -Os flag). For ADC accuracy, ensure the analog supply AVDD is driven by the same 3.3 V rail as VDD with a ferrite bead and dedicated decoupling capacitor.
Estimated: With 28-SSOP at theta_JA ~80 C/W on a 4-layer JEDEC test PCB, the device dissipates up to 1.5 W in still air before exceeding 125C junction temperature. In production designs with limited copper area, derate to 0.5 W maximum. For high-current GPIO drive (e.g., LED matrix drivers), distribute the load across multiple pins and ensure no single I/O exceeds the 4 mA source / 8 mA sink absolute maximum rating. Always enable the internal weak pull-up on unused pins to minimize quiescent current.
Compliance Information
Halogen-Free compliant per GlobalSpec datasheet listing. Country of Origin: Thailand. ECCN 3A991.a.2 (unrestricted export classification). Estimated EOL date 2026 - plan last-time-buy before Q3 2026. Not AEC-Q100 qualified - choose dsPIC33FJ16GP102-E for AEC-Q100 automotive applications.
