DSPIC33FJ06GS101AT-I/SO - 16-bit 40 MIPS DSC 6KB Flash | Microchip
MPN: DSPIC33FJ06GS101AT-I/SO ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $5.62 | $5.62 |
| 10 | $5.08 | $50.80 |
| 25 | $4.85 | $121.25 |
| 100 | $4.42 | $442.00 |
| 1,000 | $3.95 | $3,950.00 |
DSPIC33FJ06GS101AT-I/SO Overview
A digital signal controller combines the computational throughput of a DSP with the peripheral integration and ease of use of a microcontroller. Within the power-management hierarchy, a DSC such as the dsPIC33F sits between a general-purpose MCU and a dedicated DSP, making it the natural control engine for switched-mode power conversion where fast, deterministic closed-loop control is required.
Key features of the GS101 variant center on its digital power peripherals: high-speed PWM outputs with sub-nanosecond-resolution-capable control suitable for power-conversion topologies, an on-chip high-speed 10-bit ADC for fast current and voltage sampling, and analog comparators for cycle-by-cycle current limiting. The 40 MIPS core executes a modified Harvard 16-bit instruction set with DSP multiply-accumulate instructions, enabling tight control loops for peak-current-mode or voltage-mode regulation.
Technically, the dsPIC33FJ06GS101 runs from a single 3.0V to 3.6V supply and supports internal PLL clocking so a low-cost external crystal can generate the full-speed instruction clock. In-circuit serial programming (ICSP) and debugging via the two-wire programming interface allow firmware updates through standard Microchip tools (MPLAB X IDE with the MPLAB XC-DSC compiler and PICkit/ICD programmers).
Typical applications include AC-DC and DC-DC power supplies, power factor correction (PFC) stages, LED drivers, battery chargers, and digital lighting ballasts. The integrated high-speed PWM plus fast ADC combination removes the need for external analog control circuitry in many designs.
When designing with this device, budget the 256-byte RAM carefully: control-loop variables, ADC buffers, and the software stack must fit comfortably, so prefer static allocation and avoid large local arrays in interrupt service routines.
This page synthesizes distributor pricing, drop-in same-package alternatives, datasheet sourcing, and practical design notes not found in the manufacturer product listing alone.
Drop-in alternatives for DSPIC33FJ06GS101AT-I/SO — 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/SO (same form factor and footprint) — differing in Package, Operating Temperature, Core Architecture, Packaging, Mounting Type.
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Request AlternativesDSPIC33FJ06GS101AT-I/SO Maximum Ratings & Electrical Characteristics
| Core Architecture | 16-bit dsPIC33F modified Harvard |
| Max CPU Speed | 40 MIPS |
| Program Memory (Flash) | 6 KB (2K x 24) |
| RAM | 256 bytes |
| Supply Voltage | 3.0 V to 3.6 V |
| Operating Temperature | -40C to +85C (industrial) |
| Package | 18-pin SOIC (SO), 300 mil body |
| Mounting Type | Surface Mount |
| Peripheral Specialization | SMPS (digital power) family |
| High-Speed PWM | Yes (digital power PWM, complementary outputs) |
| ADC Resolution | 10-bit high-speed |
| Analog Comparators | Yes (for current limiting) |
| Programming Interface | ICSP / 2-wire in-circuit debug |
| Packaging | Tape & Reel (T/R) |
| RoHS Status | Compliant |
| Product Family | dsPIC33FJ06GS101 |
| Compiler Support | MPLAB XC-DSC C/C++ |
DSPIC33FJ06GS101AT-I/SO 18-pin soic (so), 300 mil body Pin Configuration Guide
Pin configuration for DSPIC33FJ06GS101AT-I/SO (18-pin soic (so), 300 mil body 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/SO.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33FJ06GS101AT-I/SO is suitable for 6 applications: AC-DC Power Supply Control, Power Factor Correction (PFC), Digital LED Driver / Lighting Ballast, DC-DC Converters and Point-of-Load Supplies, Battery Chargers, Industrial Sensor Signal Conditioning and Embedded Control.
AC-DC Power Supply Control
The DSPIC33FJ06GS101AT-I/SO serves as the digital control core of offline AC-DC converters, replacing analog PWM controllers with a programmable 40 MIPS loop engine. Its SMPS-specialized high-speed PWM supports complementary outputs with programmable dead time for half-bridge and forward topologies, while the fast 10-bit ADC samples output voltage and inductor current each switching cycle. The on-chip comparators provide hardware cycle-by-cycle overcurrent protection independent of firmware latency, a hard requirement for safe power-supply operation. Placed between the rectified bus divider network and the power stage gate drivers, the controller implements voltage-mode or average-current-mode regulation entirely in software, allowing field firmware updates for output-voltage changes or protection re-tuning without hardware redesign.
Recommended
Power Factor Correction (PFC)
In boost-type power factor correction stages, the DSPIC33FJ06GS101AT-I/SO executes a fast inner current loop and slower outer voltage loop at 40 MIPS with DSP multiply-accumulate instructions, computing average-current-mode regulation with deterministic latency. The high-speed ADC captures the input current shape at microsecond intervals, and the dedicated SMPS PWM module produces the boost switch drive with precise duty resolution and dead-time control. Hardware comparators implement instantaneous overcurrent shutdown for switch protection, meeting safety expectations that pure software loops cannot guarantee. Because the control law lives in firmware, the same board can be reprogrammed for different line-voltage standards or THD targets, cutting variant proliferation. The 256-byte RAM is sufficient for a two-loop PI controller with feed-forward when variables are statically allocated.
Recommended
Digital LED Driver / Lighting Ballast
The GS101's combination of high-speed PWM and fast analog feedback makes it well suited to constant-current LED drivers and HID/electronic ballasts. The PWM module drives the buck or flyback power stage while the 10-bit ADC closes the LED-current loop each cycle, achieving better than 1% current accuracy compared to several percent for open-loop analog schemes. On-chip comparators protect against LED-string short circuits within one switching cycle. Dimming can be implemented by digitally modulating the current reference or the PWM burst duty, enabling smooth 0-100% dimming and DALI- or PWM-dimmable products without extra analog dimming circuitry. Firmware re-tuning supports different LED forward voltages and string lengths on one PCB platform, reducing inventory and qualification effort for lighting manufacturers.
Recommended
DC-DC Converters and Point-of-Load Supplies
For intermediate-bus and point-of-load DC-DC converters, the DSPIC33FJ06GS101AT-I/SO implements buck or boost regulation at switching frequencies well into the hundreds of kilohertz, enabled by the 40 MIPS core and the low-latency SMPS PWM peripheral. The fast 10-bit ADC with multiple sample triggers supports simultaneous sensing of input voltage, output voltage, and inductor current for feed-forward plus current-mode control. Hardware comparators guard the power MOSFET against overcurrent events independent of software. Digital implementation permits telemetry, soft-start shaping, and adaptive dead-time optimization that improve efficiency versus fixed analog controllers, and loop parameters can be re-tuned in firmware when the input bus or output load range changes, extending product life across hardware revisions.
Recommended
Battery Chargers
Multi-chemistry battery charging benefits directly from the GS101's programmable control: the 40 MIPS DSC executes CC/CV charging profiles, termination detection, and temperature-qualified charging in firmware, all regulated through the high-speed PWM and fast ADC feedback path. The on-chip comparators add a hardware safety net for overcurrent during fault conditions. Because charge algorithms live in flash memory, a single PCB supports Li-ion, NiMH, and lead-acid profiles with different firmware images, simplifying logistics. Coulomb counting and charge-state state machines fit within the 256-byte RAM when data structures are kept static and compact. The 3.0V-3.6V supply and industrial -40C to +85C rating suit charger boards mounted inside equipment enclosures rather than harsh outdoor environments.
Recommended
Industrial Sensor Signal Conditioning and Embedded Control
Beyond power conversion, the GS101 works as a compact embedded controller for industrial sensing nodes: the 10-bit ADC digitizes sensor outputs, DSP instructions apply digital filtering (IIR/FIR) at 40 MIPS, and the remaining I/O drives actuators or communicates over UART/SPI to the plant network. The 18-SOIC footprint suits dense control boards where an oversized MCU would waste PCB area, and the industrial temperature rating covers cabinet-mounted electronics. Typical uses include transducer linearization, simple closed-loop actuators, and small automation sequences where the deterministic DSP core outperforms 8-bit MCUs yet the 6KB flash keeps firmware auditable and small. In-circuit programming via the two-wire ICSP interface enables field firmware updates without desoldering the device.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33FJ06GS101AT-I/SO — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33FJ06GS101A-I/SO | DSPIC33FJ06GS101-I/SO | DSPIC33FJ06GS101AT-E/SO | DSPIC33FJ06GS001-I/SO |
|---|---|---|---|---|---|
| Package | 18-SOIC | 18-SOIC - same | 18-SOIC - same | 18-SOIC - same | 18-SOIC - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| CPU Speed | 40 MIPS | 40 MIPS | 40 MIPS | 40 MIPS | 40 MIPS |
| Flash Memory | 6 KB (2K x 24) | 6 KB | 6 KB | 6 KB | 6 KB |
| RAM | 256 bytes | 256 bytes | 256 bytes | 256 bytes | 256 bytes |
| Operating Temperature | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +125C | -40C to +125C (E variant) / -40C to +85C (I variant) |
| Silicon Revision | T (tape & reel suffix; A-rev silicon family) | A-step (errata corrected) | Original revision | Original revision, extended temp | GS001 silicon (reduced peripherals) |
| SMPS Peripheral Set | Full GS-series digital-power peripherals | Full set - same | Full set - same | Full set - same | Reduced set |
| Packaging Format | Tape & Reel | Tube | Tube | Tape & Reel | Tube (E variant) |
Key Differentiators
- Full SMPS peripheral set for digital power control (vs DSPIC33FJ06GS001-I/SO)
- A-step silicon revision option available (vs DSPIC33FJ06GS101-I/SO)
- Industrial temperature rating suits cost-optimized designs (vs DSPIC33FJ06GS101AT-E/SO)
Design Notes
The dsPIC33FJ06GS101 requires a single 3.0V-3.6V supply. Decouple VDD with a 0.1uF ceramic capacitor placed within 5 mm of the pin, plus a 4.7uF-10uF bulk capacitor near the device. In digital-power applications the controller shares a board with switching power stages; route a star ground so that MOSFET switch-node current returns do not flow through the analog ground region feeding the ADC. Consider an RC filter (e.g., 100 ohm + 1uF) on VDD in electrically noisy converters, but keep the voltage drop within the 3.0V minimum.
Keep the high-speed ADC input traces away from PWM output traces and switch nodes to prevent digital switching noise coupling into analog readings. Route analog sense lines as short Kelvin connections to the shunt resistor for current sampling. Use a solid ground plane under the controller. Place the ICSP programming connector (PGD/PGC plus MCLR with a 10k pull-up and reset diode per Microchip programming-spec guidelines) on the board even for production units to preserve field-firmware updatability.
The 256-byte RAM is the most common design hazard: firmware that links successfully can still overflow the stack at runtime when interrupt nesting plus call depth peaks. Estimate the worst-case stack usage in MPLAB XC-DSC and leave headroom. Also verify your specific silicon revision against the Microchip errata sheet for the dsPIC33FJ06GS101 family, and prefer the A-step revision (GS101A) for new designs to avoid documented errata workarounds.
Compliance Information
RoHS compliance per Microchip product page and distributor listings for the -I industrial grade; REACH, halogen-free and conflict-minerals statements not found in provided data.
