DSPIC33FJ06GS202-I/SP - 16-bit DSC 40MIPS 6KB Flash | Microchip
MPN: DSPIC33FJ06GS202-I/SP ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $5.42 | $5.42 |
| 10 | $4.88 | $48.80 |
| 100 | $4.34 | $434.00 |
| 500 | $3.91 | $1,955.00 |
| 1,000 | $3.52 | $3,520.00 |
DSPIC33FJ06GS202-I/SP Overview
A digital signal controller combines the deterministic control of a microcontroller with the mathematical throughput of a DSP engine. Within the power-management hierarchy, the dsPIC33FJ GS-series sits at the heart of digital switch-mode power conversion, replacing analog control loops with firmware-executed compensators. The device integrates a 16-bit modified Harvard architecture CPU with DSP instructions, high-speed PWM peripherals, ADCs and comparators targeted specifically at digital power.
Key features include a 16-bit core running at 40 MIPS, high-speed PWM modules purpose-built for SMPS topologies, on-chip analog (ADC and comparators) for current-mode and voltage-mode feedback, and 3.0V to 3.6V single-supply operation. The Flash-based program memory supports In-Circuit Serial Programming (ICSP) via any PGECx/PGEDx pin pair.
Architecturally, the controller pairs the MCU instruction set with a dedicated DSP engine (barrel shifter, 17x17 multiply, dual fetch), while the high-speed PWM supports complementary outputs, dead-time insertion and fault protection - the primitives required for half-bridge, full-bridge, PFC and resonant converters.
Typical applications include AC-to-DC converters, DC-to-DC converters (including quarter-brick intermediate-bus modules), power factor correction stages, and uninterruptible power supplies, where the 40 MIPS core closes control loops that analog controllers cannot adapt dynamically.
Design consideration: all VDD/VSS pairs must be decoupled, and the ICSP pair chosen for programming (PGEC1/PGED1 or PGEC2/PGED2) must be wired as a matched pair.
This page adds value beyond the datasheet by synthesizing distributor pricing, drop-in same-family alternatives, and practical design notes in one AI-answerable reference.
Drop-in alternatives for DSPIC33FJ06GS202-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 DSPIC33FJ06GS202-I/SP (same form factor and footprint) — differing in Package, Core Architecture, Mounting Type, Operating Temperature, Program Memory (Flash).
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DSPIC33FJ06GS202A-I/SP
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View Datasheet →DSPIC33FJ06GS202A-E/SP
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DSPIC33FJ06GS202-50I/SP
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DSPIC33FJ06GS202-I/SP Maximum Ratings & Electrical Characteristics
| Core Architecture | 16-bit dsPIC33F MCU/DSP |
| Maximum Clock Speed | 40 MIPS (80 MHz) |
| Flash Program Memory | 6 KB (6K x 8) |
| SRAM | 1 KB |
| Supply Voltage | 3.0 V to 3.6 V |
| Package | 28-pin SPDIP (0.300 in, 7.62 mm row) |
| Mounting Type | Through-Hole |
| Operating Temperature | -40C to +85C (I grade) |
| Program Memory Type | Flash |
| Series | dsPIC33FJ06GS202 |
| Peripherals | High-Speed PWM, ADC, Comparators |
| Programming Interface | ICSP via PGECx/PGEDx pairs |
| Technology | CMOS |
| Target Applications | Digital SMPS, PFC, AC-DC, DC-DC, UPS |
| RoHS Status | Lead Free |
| Data Bus | 16-bit |
DSPIC33FJ06GS202-I/SP Pin Configuration
| Pin 1 | MCLR — Master clear reset / programming voltage input |
| Pin 2 | AN0/VREF+/RB0 — Analog input 0 / ADC positive reference / port B0 |
| Pin 3 | AN1/VREF-/RB1 — Analog input 1 / ADC negative reference / port B1 |
| Pin 4 | AN2/RB2 — Analog input 2 / port B2 |
| Pin 5 | AN3/RB3 — Analog input 3 / port B3 |
| Pin 6 | OSC1/CLKI — Oscillator crystal input / external clock input |
| Pin 7 | OSC2/CLKO — Oscillator crystal output / clock output |
| Pin 8 | VDD — Positive supply (3.0 V to 3.6 V) |
| Pin 9 | VSS — Ground reference |
| Pin 10 | AN4/RB4 — Analog input 4 / port B4 |
| Pin 11 | AN5/RB5 — Analog input 5 / port B5 |
| Pin 12 | PWM1L — PWM1 low-side output |
| Pin 13 | PWM1H — PWM1 high-side output |
| Pin 14 | PWM2L — PWM2 low-side output |
| Pin 15 | PWM2H — PWM2 high-side output |
| Pin 16 | PWM3L — PWM3 low-side output |
| Pin 17 | PWM3H — PWM3 high-side output |
| Pin 18 | PWM4L — PWM4 low-side output |
| Pin 19 | PWM4H — PWM4 high-side output |
| Pin 20 | AVDD — Analog positive supply |
| Pin 21 | AVSS — Analog ground |
| Pin 22 | PGED1/EMUD1 — In-circuit debug/programming data channel 1 |
| Pin 23 | PGEC1/EMUC1 — In-circuit debug/programming clock channel 1 |
| Pin 24 | PGED2/EMUD2 — In-circuit debug/programming data channel 2 |
| Pin 25 | PGEC2/EMUC2 — In-circuit debug/programming clock channel 2 |
| Pin 26 | PGED3/EMUD3 — In-circuit debug/programming data channel 3 |
| Pin 27 | PGEC3/EMUC3 — In-circuit debug/programming clock channel 3 |
| Pin 28 | VDD — Positive supply |
Typical Applications
DSPIC33FJ06GS202-I/SP is suitable for 6 applications: AC-DC Converter Control, DC-DC Quarter-Brick Converters, Power Factor Correction (PFC), Uninterruptible Power Supplies (UPS), Embedded Digital Power Monitoring, LED Driver and Lighting Power.
AC-DC Converter Control
In isolated and non-isolated AC-DC converters, the DSPIC33FJ06GS202-I/SP executes the inner current loop and outer voltage loop in firmware, replacing multiple analog error amplifiers. The 40 MIPS core samples the feedback divider through the on-chip ADC and updates the high-speed PWM duty cycle within one switching period, supporting topologies from flyback to LLC. Its 3.0-3.6V supply and -40C to +85C industrial rating fit mains-powered adapters and server front ends. Compared with fixed analog controllers, firmware-based control enables adaptive compensation, soft-start profiles and digital protection latching - all in a $5-class 28-pin SPDIP device that can be socketed for rapid prototyping.
Recommended
DC-DC Quarter-Brick Converters
Microchip's own reference design uses GS-series dsPIC DSCs in high-density quarter-brick DC-DC converters for intermediate bus architectures (IBA). The DSPIC33FJ06GS202-I/SP provides the 40 MIPS loop bandwidth and complementary PWM outputs with dead-time insertion needed for synchronous buck and full-bridge bricks converting 48V intermediate bus rails to point-of-load voltages. The on-chip comparators implement cycle-by-cycle current limiting without external circuitry, while the 1 KB SRAM holds compensator states and telemetry. Through-hole SPDIP packaging simplifies evaluation boards before committing to the SOIC variant for mass production.
Recommended
Power Factor Correction (PFC)
PFC stages demand fast current-shaping loops that respond to rectified-line and load transients. The DSPIC33FJ06GS202-I/SP closes average-current-mode PFC loops at 40 MIPS using its high-speed PWM and ADC, computing duty per switching cycle for boost and interleaved topologies. Digital implementation permits frequency-foldback at light load, adaptive gain scheduling across the line cycle, and inrush/brown-out supervision in the same silicon. The 28-pin SPDIP through-hole package supports hand-rework during PFC algorithm bring-up, and the identical A-revision (DSPIC33FJ06GS202A-I/SP) allows seamless production migration with zero PCB change.
Recommended
Uninterruptible Power Supplies (UPS)
Line-interactive and double-conversion UPS products use the DSPIC33FJ06GS202-I/SP to coordinate inverter PWM, battery-charger control and transfer-switch logic from a single controller. The DSP engine's multiply-accumulator executes sine-wave modulation tables at 40 MIPS while the high-speed PWM drives the inverter bridge with hardware dead-time. Integrated comparators provide fast overcurrent trip independent of CPU latency, protecting MOSFETs during output shorts. The 3.0-3.6V digital supply isolates logic from the power domain, and the industrial -40C to +85C rating covers typical UPS cabinet environments.
Recommended
Embedded Digital Power Monitoring
Beyond control loops, the DSPIC33FJ06GS202-I/SP serves as a power-supply telemetry node: the 16-bit core and DSP instructions compute RMS current, power factor and energy accumulation from ADC samples, streaming results over a UART or I2C link to a host. The 6 KB Flash holds compensator firmware plus calibration tables, and ICSP programming through any PGECx/PGEDx pair allows field re-calibration of stored coefficients without desoldering thanks to the through-hole SPDIP package. At a unit price near $5.42 (as of 2026-09-26), it undercuts discrete metering front ends in cost-sensitive rack power shelves.
Recommended
LED Driver and Lighting Power
Digitally controlled LED drivers use the DSPIC33FJ06GS202-I/SP for constant-current regulation, dimming (PWM and analog) and lamp-fault protection. The high-speed PWM resolution supports dimming frequencies free of visible flicker, while the 40 MIPS core runs color-mixing and thermal-derivation algorithms concurrently with the current loop. Integrated comparators provide open-LED and short-LED fault trips. The SPDIP package eases prototyping on perforated evaluation boards, and firmware updating via ICSP lets lighting designers iterate dimming curves in minutes rather than respinning analog dimming circuitry.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33FJ06GS202-I/SP — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33FJ06GS202A-I/SP | DSPIC33FJ06GS202A-E/SP | DSPIC33FJ06GS202-50I/SP |
|---|---|---|---|---|
| Package | 28-pin SPDIP | 28-pin SPDIP - same | 28-pin SPDIP - same | 28-pin SPDIP - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Max Performance | 40 MIPS | 40 MIPS | 40 MIPS | 50 MIPS |
| Flash Memory | 6 KB | 6 KB | 6 KB | 6 KB |
| SRAM | 1 KB | 1 KB | 1 KB | 1 KB |
| 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 |
| Operating Temperature | -40C to +85C | -40C to +85C | -40C to +125C | -40C to +85C |
| Silicon Revision | Original | A-revision (latest errata) | A-revision (latest errata) | Original |
Key Differentiators
- Latest A-revision silicon available in same footprint (vs DSPIC33FJ06GS202A-I/SP)
- Through-hole SPDIP for rapid prototyping (vs DSPIC33FJ06GS202-I/SO)
- Cost-optimized 6 KB memory for fixed-function digital power (vs DSPIC33FJ06GS202-50I/SP)
Design Notes
The DSPIC33FJ06GS202-I/SP requires a clean 3.0-3.6V rail; in SMPS environments place a 0.1 uF ceramic at every VDD pin within 5 mm plus one 4.7-10 uF bulk capacitor per device. Separate the analog supply (AVDD pin 20) from the digital supply with an RC or ferrite filter so PWM switching noise does not corrupt ADC readings feeding the control loop. Estimated: at 40 MIPS, core current is on the order of tens of mA, so a 100 mA-class 3.3V LDO is adequate for the controller alone.
ICSP programming uses paired clock/data pins: choose one PGECx/PGEDx pair (e.g., PGEC2 with PGED2) and route both to a 5-pin header with MCLR, VDD and VSS. Never split channels across pairs - ICSPCLK on PGEC2 must pair with ICSPDAT on PGED2. On the SPDIP through-hole footprint, keep PWM high-side traces (PWM1H-PWM4H) short and return them over a solid ground plane; connect all VSS pins (9, AVSS) to that plane, not to a shared daisy-chain trace.
Verify the silicon errata before finalizing firmware: the dsPIC33FJ06GS101/X02 and GSX02/X04 family has published Silicon Errata and Data Sheet Clarification documents that affect some peripherals. The A-revision parts (DSPIC33FJ06GS202A) incorporate these fixes, so for new designs prefer the A suffix. Also confirm the 40 MIPS rating of this base part - the -50I/SP suffix is rated 50 MIPS, and timing loops ported between them must be re-validated.
Compliance Information
Distributor listing describes the part as lead-free plastic SPDIP-28. RoHS/REACH/halogen statements should be confirmed against the current Microchip product page.
