DSPIC33FJ06GS101AT-I/SS - 16-bit 40 MIPS DSC 6KB Flash | Microchip
MPN: DSPIC33FJ06GS101AT-I/SS ✓ Active| Qty | Unit Price | Extended |
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DSPIC33FJ06GS101AT-I/SS Overview
A Digital Signal Controller combines the computational architecture of a digital signal processor with the peripheral set and ease of use of a microcontroller. Within the power-management hierarchy, a DSC is a class of microcontroller optimized for closed-loop control loops such as switch-mode power supplies (SMPS), power factor correction, and digital lighting ballasts, where fast multiply-accumulate (MAC) operations and precise PWM generation are required.
Key features of this device include the 16-bit dsPIC33F core executing up to 40 million instructions per second, DSP-engine instructions with dual operand fetch for single-cycle MAC operations, 6KB of self-programmable flash, and an industrial operating temperature range of -40C to +85C indicated by the -I suffix. The AT suffix denotes a tape-and-reel packaging variant of the A-revision silicon.
The GS-series architecture is specifically tuned for digital power conversion: the core supports the MAC instruction that concurrently fetches two data operands from memory while multiplying two W registers and accumulating the result in the same cycle, per the dsPIC33FJ06GS101/X02 family datasheet. Programming and in-circuit debugging are supported via ICSP (In-Circuit Serial Programming) using two device I/O pins plus the reset line, compatible with the MPLAB SNAP and PICkit programmers, and development is supported by the MPLAB XC-DSC C/C++ compiler.
Typical applications include switch-mode power supplies, AC-DC and DC-DC converters, power factor correction stages, LED drivers, battery chargers, and digital lighting control where high-speed closed-loop control is mandatory.
When designing with this device, budget the limited 256 bytes of RAM carefully, since control-loop state variables and compensation coefficients must fit within it; most GS-series designs keep ISR-heavy control code in assembly-optimized or tightly written C.
This page synthesizes distributor availability data, drop-in family alternatives, and practical design guidance not found in the manufacturer datasheet.
Drop-in alternatives for DSPIC33FJ06GS101AT-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 DSPIC33FJ06GS101AT-I/SS (same form factor and footprint) — differing in Operating Temperature, Packaging, Package, Core Architecture, Peripherals.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33FJ09GS101-I/SS
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33FJ06GS101A-I/SS
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$1.78 / Unit
View Datasheet →DSPIC33FJ06GS101AT-E/SS
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33FJ06GS102-I/SS
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33FJ06GS101AT-I/SS Maximum Ratings & Electrical Characteristics
| Core Architecture | 16-bit dsPIC33F RISC |
| Maximum CPU Speed | 40 MIPS |
| Program Memory (FLASH) | 6 KB (2K x 24) |
| RAM | 256 bytes |
| Supply Voltage | 3.3 V |
| Operating Temperature | -40C to +85C (Industrial, -I suffix) |
| Package | 20-SSOP (0.209 in, 5.30 mm width) |
| Mounting Type | Surface Mount |
| Series | dsPIC 33F (GS-series, digital power) |
| Silicon Revision | A revision (AT variant, tape and reel) |
| Programming Interface | ICSP (In-Circuit Serial Programming) |
| Debugging Support | In-circuit debugging via MPLAB SNAP (2 I/O pins + reset) |
| Compiler Support | MPLAB XC-DSC C/C++ Compiler |
| DSP Engine | Single-cycle MAC with dual operand fetch |
| Typical Applications Focus | SMPS / digital power conversion |
| Packaging | Tape and Reel |
| RoHS Status | unknown |
DSPIC33FJ06GS101AT-I/SS 20-ssop (0.209 in, 5.30 mm width) Pin Configuration Guide
Pin configuration for DSPIC33FJ06GS101AT-I/SS (20-ssop (0.209 in, 5.30 mm width) 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 DSPIC33FJ06GS101AT-I/SS.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33FJ06GS101AT-I/SS is suitable for 6 applications: Switch-Mode Power Supply (SMPS) Control, Power Factor Correction (PFC) Stage, Digital LED Driver and Lighting Control, Battery Charger Power Conversion, Embedded Control in Industrial Power Electronics, Prototyping and Development of Digital Power Designs.
Switch-Mode Power Supply (SMPS) Control
The DSPIC33FJ06GS101AT-I/SS was purpose-built for digitally controlled switch-mode power supplies. Its 40 MIPS 16-bit dsPIC core with a DSP engine executing single-cycle MAC instructions - fetching two data operands from memory while multiplying and accumulating in the same cycle - sustains the fast control-loop interrupt rates demanded by buck, boost, and flyback converters switching at hundreds of kilohertz. The 6KB FLASH holds the compensation algorithm, fault handlers, and startup routines, while the 256-byte RAM stores state variables and coefficient tables within the small budget. In a typical topology, the ADC samples the output voltage and current each switching cycle, the ISR computes the PID or type-III compensation update, and the resulting duty cycle is written to the PWM peripheral. Because the controller is fully digital, gain scheduling and non-linear compensation can be implemented in firmware - something analog error amplifiers cannot do - at the cost of careful RAM management given the 256-byte budget.
Recommended
Power Factor Correction (PFC) Stage
Active power factor correction requires precise, fast current-loop control synchronized to the rectified AC line, which matches the DSPIC33FJ06GS101AT-I/SS strengths directly. The 40 MIPS core executes the average-current-mode or peak-current-mode PFC compensation inside each switching-cycle interrupt, and the single-cycle MAC instruction with dual operand fetch keeps the loop overhead minimal even with 3.3V single-supply operation. The 6KB FLASH accommodates PFC-specific features such as input-voltage feedforward, soft-start sequencing, and brown-out/inrush fault handling that analog PFC controllers handle in hardware but with fixed behavior. Firmware flexibility lets engineers implement valley-switching skip modes and adaptive dead-time without hardware changes. Designers must verify that the PWM peripheral's resolution meets the target converter frequency and that the 256-byte RAM suffices for the current-loop state machine; if more code space is needed for harmonic-injection algorithms, the pin-compatible 9KB DSPIC33FJ09GS101-I/SS is the recommended drop-in upgrade.
Recommended
Digital LED Driver and Lighting Control
The DSPIC33FJ06GS101AT-I/SS serves as a compact digital controller for high-brightness LED drivers, dimming engines, and electronic ballasts. The GS-series peripheral set pairs the 40 MIPS core with PWM resources capable of the high-resolution dimming ratios required in architectural and industrial lighting, while the 20-SSOP package (5.30mm body width) fits the tight space budgets of LED driver boards. The 6KB FLASH stores constant-current regulation loops, DALI or simple serial command handling, and thermal foldback algorithms; the DSP MAC support accelerates the averaging math used in ripple-cancellation schemes. Because the part operates from a single 3.3V rail at industrial temperatures (-40C to +85C), it integrates cleanly into driver boards powered from auxiliary low-dropout or buck-derived supplies. The primary trade-off is memory: complex lighting protocols plus dimming curves can approach the 6KB limit, in which case the same-footprint 9KB GS101 variant avoids a PCB respin.
Recommended
Battery Charger Power Conversion
Smart battery chargers - from Li-ion CC/CV converters to multi-chemistry industrial chargers - benefit from the DSPIC33FJ06GS101AT-I/SS digital control approach. The 40 MIPS core closes the charging current and voltage loops every switching cycle, while firmware implements charge-phase state machines (pre-charge, constant current, constant voltage, termination, and top-off) that adapt per battery chemistry. The DSP engine's single-cycle MAC speeds up coulomb-counting accumulation and current averaging for accurate charge-termination decisions, and the 6KB FLASH holds the full charging state machine with safety fault handlers for over-voltage, over-current, and over-temperature conditions. The industrial -40C to +85C rating suits automotive-adjacent and outdoor charging equipment. A key design consideration is RAM discipline: with only 256 bytes, avoid floating-point libraries and use fixed-point Q15 arithmetic consistent with the dsPIC DSP engine's native 16-bit data path.
Recommended
Embedded Control in Industrial Power Electronics
Beyond converters, the DSPIC33FJ06GS101AT-I/SS acts as a general embedded controller inside industrial power electronics: welder power stages, induction heating modules, DC distribution monitors, and solid-state relay controllers. The 40 MIPS throughput handles both the real-time control loop and supervisory logic (fault logging, communication, sequencing) in one compact 20-SSOP device, reducing BOM count versus separate MCU-plus-controller architectures. ICSP programming via two I/O pins and MCLR allows field firmware updates using an MPLAB SNAP without removing the board, which matters for serviceable industrial equipment. The industrial temperature rating of -40C to +85C covers unconditioned factory environments. Engineers should design the PCB so programming pads remain accessible, reserve headroom in the 6KB FLASH for future feature additions (or specify the 9KB sibling at design time), and validate that ISR jitter at 40 MIPS meets the control-loop timing margin under worst-case interrupt load.
Recommended
Prototyping and Development of Digital Power Designs
For R prototyping of digital power systems, the DSPIC33FJ06GS101AT-I/SS pairs with Microchip's mature development ecosystem. The MPLAB X IDE plus the MPLAB XC-DSC C/C++ compiler translate standard ANSI C into DSC assembly while exposing hardware-specific extensions, and the MPLAB SNAP debugger provides in-circuit debugging through just two device I/O pins and the reset line - no socketed parts or emulator pods needed. Designers commonly prototype on PDIP-packaged family members such as the DSPIC33FJ06GS001-E/P (same 6KB family in through-hole for breadboards), then move to this 20-SSOP tape-and-reel part for the production PCB. This path keeps firmware portable since the GS-series shares one datasheet (70000318g) and one peripheral register map across packages. Budget note for labs: the 256-byte RAM forces early adoption of fixed-point math habits, which pays off later because the code ports directly to the DSP engine's 16-bit MAC data path in production.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33FJ06GS101AT-I/SS — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33FJ09GS101-I/SS | DSPIC33FJ06GS101A-I/SS | DSPIC33FJ06GS101AT-E/SS | DSPIC33FJ06GS001-E/P |
|---|---|---|---|---|---|
| Package | 20-SSOP (5.30mm width) | 20-SSOP - same footprint | 20-SSOP - same footprint | 20-SSOP - same footprint | PDIP-18 - different (not drop-in) |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core / Speed | 16-bit dsPIC33F, 40 MIPS | 16-bit dsPIC33F, 40 MIPS | 16-bit dsPIC33F, 40 MIPS | 16-bit dsPIC33F, 40 MIPS | 16-bit dsPIC33F, 40 MIPS |
| Program Memory (FLASH) | 6 KB (2K x 24) | 9 KB | 6 KB | 6 KB | 6 KB |
| RAM | 256 bytes | 1 KB | 256 bytes | 256 bytes | 256 bytes |
| Supply Voltage | 3.3 V | 3.3 V | 3.3 V | 3.3 V | 3.3 V |
| Operating Temperature | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +125C (Extended) | -40C to +125C (Extended) |
| Packaging / Ordering | Tape and Reel (AT suffix) | Tape and Reel / tube per order code | Tube / tray | Tape and Reel | Tube (through-hole) |
Key Differentiators
- Balanced 6KB FLASH footprint at lowest family cost (vs DSPIC33FJ09GS101-I/SS)
- Tape-and-reel ordering for automated production (vs DSPIC33FJ06GS101A-I/SS)
- Industrial temperature rating covers standard equipment (vs DSPIC33FJ06GS101AT-E/SS)
Design Notes
RAM budgeting is the number-one pitfall on this device: only 256 bytes of RAM exist, and the DSP MAC instruction splits the RAM data space into X and Y regions for dual operand fetch. Partition X/Y data early, use fixed-point Q15 arithmetic instead of floating point (software float libraries will not fit comfortably in 6KB FLASH), and keep ISR-local state minimal. If the linker reports overflow, the pin-compatible DSPIC33FJ09GS101-I/SS with 1KB RAM is the no-respin fix.
Decouple VDD with a 0.1uF ceramic capacitor placed within 5mm of the supply pin, plus a 4.7uF to 10uF bulk capacitor near the device, per general dsPIC33F power guidelines. Keep the analog inputs used for converter feedback sensing away from the switching node and gate-drive traces; route the PWM outputs with controlled loops to limit radiated EMI at the converter switching frequency. Preserve ICSP access (two I/O pins plus MCLR) on a header or test pads for in-circuit programming with MPLAB SNAP.
The device operates from a single 3.3V rail. Derive it from an LDO or small buck off the converter's auxiliary winding, and sequence it so VDD is stable before releasing MCLR to avoid spurious resets during converter startup. Estimated: with a 40 MIPS core the device current is in the tens-of-mA class per typical dsPIC33F figures, so a 100mA-class auxiliary supply provides adequate margin including I/O drive current for gate-driver inputs. Confirm exact IDD against the datasheet electrical characteristics table (70000318g) for your clock configuration.
Compliance Information
Compliance data not present in the provided web sources; verify RoHS/REACH status on the official Microchip product page or distributor environmental datasheet before procurement.
