DSPIC33FJ64GS606T-50I/PT - 16-bit 50MIPS DSC 64KB Flash | Microchip
MPN: DSPIC33FJ64GS606T-50I/PT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $7.2 | $7.20 |
| 10 | $6.55 | $65.50 |
| 100 | $5.9 | $590.00 |
| 500 | $5.4 | $2,700.00 |
| 1,000 | $4.95 | $4,950.00 |
DSPIC33FJ64GS606T-50I/PT Overview
A digital signal controller combines the computational throughput of a DSP core with the peripheral integration and ease of use of a microcontroller. Within the power-management hierarchy, the DSC sits between a general-purpose MCU and a dedicated DSP, making it the preferred device class for closed-loop digital switch-mode power supplies (SMPS) where fast control loops, high-resolution PWM and on-chip analog are all mandatory.
Key differentiating features of the GS606 include dedicated SMPS PWM modules with high resolution for precise duty-cycle control, two quadrature encoder interface (QEI) inputs for motor feedback, an on-chip CAN module for system communication, a DAC for reference generation, and four analog comparators for fast overcurrent and cycle-by-cycle protection. Per Microchip product data, the device enumerates as a 16-bit DSC with 64KB Flash, 9KB RAM, 50 MHz operation, SMPS PWM, 2 QEI, CAN, DAC and 4 comparators.
Architecturally, the dsPIC33F core pairs a modified Harvard 16-bit pipeline with DSP multiply-accumulate instructions, allowing single-cycle MAC operations in control-loop interrupt service routines. The deep analog integration lets the GS606 close voltage and current loops entirely on-chip, reducing external component count and board area.
Typical applications include AC-to-DC converters, DC-to-DC converters, power factor correction (PFC) stages, uninterruptible power supplies, and digitally controlled lighting or motor-drive power stages, as cited on the Microchip dsPIC33FJ64GS606 product page.
Design consideration: budget the PWM resolution against the instruction clock and verify comparator response times for your overcurrent trip threshold; the TQFP thermal pad-free package requires solid ground pours for high-frequency switching layouts.
This page synthesizes distributor availability data, same-family drop-in options, and digital-power design notes not consolidated on the manufacturer product page.
Drop-in alternatives for DSPIC33FJ64GS606T-50I/PT — 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 DSPIC33FJ64GS606T-50I/PT (same form factor and footprint) — differing in Operating Temperature, Package, Comparators, DAC, Supply Voltage.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33FJ64GS608-50I/PT
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$5.38 / Unit
View Datasheet →DSPIC33FJ32GS606-50I/PT
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$4.15 / Unit
View Datasheet →DSPIC33FJ32GS608-50I/PT
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$5.35 / Unit
View Datasheet →DSPIC33FJ16GS606-50I/PT
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33FJ16GS608-50I/PT
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33FJ64GS606T-50I/PT Maximum Ratings & Electrical Characteristics
| Core | dsPIC33F 16-bit DSC |
| Processor Series | dsPIC33F |
| Max MIPS | 50 MIPS |
| Clock Frequency | 50 MHz |
| Flash Memory | 64 KB |
| RAM | 9 KB |
| Supply Voltage | 3.3 V |
| Operating Temperature | -40C to +85C |
| Package | 64-TQFP (10x10 mm) |
| Terminal Pitch | 0.5 mm |
| Mounting Type | Surface Mount |
| SMPS PWM Modules | Yes (dedicated digital power PWM) |
| Quadrature Encoder Interfaces | 2 |
| CAN Module | Yes |
| DAC | Yes |
| Analog Comparators | 4 |
| RoHS Status | Compliant |
| Packaging | Tape & Reel (T suffix) |
DSPIC33FJ64GS606T-50I/PT 64-tqfp (10x10 mm) Pin Configuration Guide
Pin configuration for DSPIC33FJ64GS606T-50I/PT (64-tqfp (10x10 mm) 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 DSPIC33FJ64GS606T-50I/PT.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33FJ64GS606T-50I/PT is suitable for 6 applications: AC-to-DC Converter Control, Power Factor Correction (PFC), DC-to-DC Converter (Digital SMPS), Uninterruptible Power Supply (UPS), Motor Drive and Digital Motion Control, Solar Micro-Inverter and Renewable Power Conversion.
AC-to-DC Converter Control
The DSPIC33FJ64GS606T-50I/PT closes the voltage and current control loops of off-line AC-to-DC converters entirely on-chip. Its dedicated SMPS PWM modules generate precisely timed switching waveforms at 50 MIPS core speed, while the four analog comparators provide cycle-by-cycle overcurrent protection with no software latency - essential for surviving fault events in a mains-connected power stage. Microchip lists AC to DC Converters as a primary application for this exact device. In practice the controller reads feedback through its on-chip ADC, executes a PI or predictive control law with single-cycle MAC instructions, and updates PWM duty cycles within one switching period. The 64KB flash accommodates soft-start sequencing, inrush limiting, fault logging and communication stacks, and the CAN module links the converter to system-level supervision in telecom or industrial rectifiers.
Recommended
Power Factor Correction (PFC)
Power factor correction demands a fast average-current-mode loop plus input-voltage feedforward - exactly the workload the DSPIC33FJ64GS606T-50I/PT was architected for. Microchip explicitly names PFC as a supported application and ships an Interleaved PFC reference design on GS-family SMPS DSCs producing 350W from universal AC input. The controller's 50 MIPS throughput updates PWM duty at every switching cycle, while on-chip comparators trip the PWM outputs within nanoseconds on overcurrent, protecting the MOSFETs during AC zero-cross transients. Interleaving two PFC phases is manageable because the SMPS PWM module supports complementary outputs with programmable dead time. With 64KB flash, the same controller can additionally implement inrush control, brownout handling and digital housekeeping that would otherwise require a second MCU, reducing BOM count in server and telecom front ends.
Recommended
DC-to-DC Converter (Digital SMPS)
For digitally controlled DC-to-DC bricks, point-of-load converters and bus converters, the DSPIC33FJ64GS606T-50I/PT replaces analog PWM controllers with a programmable loop whose gains, nonlinearities and mode switching are set in firmware. Microchip lists DC to DC Converters among the target applications for the GS606. The dedicated SMPS PWM module provides high-resolution duty and period control with dead-time insertion for synchronous rectification, and the four comparators implement lossless cycle-by-cycle current limiting. The DSP engine's single-cycle MAC executes the compensation filter at 50 MIPS, enabling switching frequencies well into the hundreds of kilohertz with multi-sample-per-cycle averaging. The CAN interface allows telemetry - voltage, current, temperature - to be streamed to a system host, a feature analog controllers cannot offer without extra ICs.
Recommended
Uninterruptible Power Supply (UPS)
The Microchip dsPIC33FJ64GS606 product page names Uninterruptible Power Supplies as a supported application, and the GS606T-50I/PT fits naturally: a UPS requires simultaneous control of an AC-DC charger, a DC-AC inverter and a static transfer switch - three power stages that the SMPS PWM modules and rich timer resources can drive from one chip. The 64KB flash holds the full state machine (line mode, battery mode, bypass), while the four comparators provide hardware overcurrent trip for the inverter bridge. The DSP core executes sine-wave reference generation and multi-loop voltage/current regulation at 50 MIPS with deterministic interrupt latency, keeping output THD low. The CAN module reports battery state and alarms to facility monitoring, and the 64-pin TQFP provides enough I/O for relay drivers, LCD interface and front-panel controls without port expanders.
Recommended
Motor Drive and Digital Motion Control
With two quadrature encoder interfaces (QEI) on board, the DSPIC33FJ64GS606T-50I/PT directly reads position feedback from two motors, making it suitable for dual-axis servo drives, BLDC/PMSM inverters and digitally controlled motion platforms. The SMPS PWM modules generate the six or twelve switch waveforms for three-phase bridges with programmable dead time, and the DSP MAC engine runs field-oriented control (FOC) transforms at 50 MIPS - fast enough for current loops executed every PWM cycle. The on-chip comparators give hardware-phase overcurrent protection independent of software, and the CAN bus integrates the drive into industrial networks. The FindIC listing highlights the 2 QEI plus SMPS PWM combination that distinguishes the GS series from general-purpose dsPIC33F parts for motion applications; 64KB flash holds the FOC engine plus communication and profiling code.
Recommended
Solar Micro-Inverter and Renewable Power Conversion
Renewable energy converters - solar micro-inverters, optimizers and small wind rectifiers - combine MPPT algorithms, grid-synchronized inversion and safety monitoring, a workload the DSPIC33FJ64GS606T-50I/PT handles with its on-chip analog and 50 MIPS DSP core. MPPT searches run as low-priority tasks while the fast loop updates PWM duty per switching cycle; the four comparators enforce anti-islanding and overcurrent protection in hardware per grid-code response-time expectations. The DAC provides a stable internal reference threshold for the comparators, and CAN connects to string-level monitoring. The industrial -40C to +85C rating of the /I temperature suffix suits outdoor enclosures. With 64KB of flash, the controller also stores calibration tables and logging data that support field diagnostics across the inverter's service life.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33FJ64GS606T-50I/PT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33FJ64GS608-50I/PT | DSPIC33FJ32GS606-50I/PT | DSPIC33FJ16GS606-50I/PT | DSPIC33FJ32GS608-50I/PT |
|---|---|---|---|---|---|
| Package | 64-TQFP (10x10 mm) | 64-TQFP (10x10 mm) - same | 64-TQFP (10x10 mm) - same | 64-TQFP (10x10 mm) - same | 64-TQFP (10x10 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 64 KB | 64 KB | 32 KB | 16 KB | 32 KB |
| Core Performance | 16-bit dsPIC33F, 50 MIPS / 50 MHz | 16-bit, 50 MIPS / 50 MHz | 16-bit, 50 MIPS / 50 MHz | 16-bit, 50 MIPS / 50 MHz | 16-bit, 50 MIPS / 50 MHz |
| SMPS PWM | Yes (dedicated digital power PWM) | Yes | Yes | Yes | Yes |
| Analog Comparators | 4 | 4 | 4 | 4 | 4 |
| Operating Temperature | -40C to +85C (industrial) | -40C to +85C (industrial) | -40C to +85C (industrial) | -40C to +85C (industrial) | -40C to +85C (industrial) |
| CAN / DAC / QEI | Yes / Yes / 2 | Yes / Yes / 2 | Yes / Yes / 2 | Yes / Yes / 2 | Yes / Yes / 2 |
Key Differentiators
- Largest flash in the 64-pin GS60x drop-in group (vs DSPIC33FJ32GS606-50I/PT)
- Complete digital-power analog integration (vs DSPIC33FJ16GS606-50I/PT)
- Dual QEI inputs for dual-axis motion (vs DSPIC33FJ64GS608-50I/PT)
- Industrial temperature rating as standard (vs Non-I suffixed GS606 variants)
Design Notes
Suffix decoding matters when ordering: T = tape-and-reel, 50I = 50 MIPS industrial temperature (-40C to +85C), /PT = 64-pin TQFP. A common error is ordering the commercial-temperature (0C to +70C) variant for outdoor or industrial equipment - the die is identical, but the -40C rating is only guaranteed on the I suffix. Also note the /PT tape-and-reel variant ships in reels; the tray-packaged non-T part is better for hand-placed prototypes.
The 64-TQFP (10x10 mm, 0.5 mm pitch) has no exposed thermal pad, so power return integrity depends entirely on the ground network. Use at least a two-layer board with a continuous ground plane under the device, and place 0.1uF ceramic decoupling capacitors on each VDD pin within 2 mm of the pin. Route the SMPS PWM outputs away from the analog comparator and ADC input traces to prevent switching-edge coupling from corrupting the fast overcurrent comparators.
The controller runs from a single 3.3V supply. In digital power converters, bias the dsPIC33F from a small dedicated buck or LDO (e.g., an MCP16301-class part) derived from the power-stage rail rather than the noisy gate-driver supply. Sequence the 3.3V rail before enabling the SMPS PWM outputs via firmware, and use the on-chip comparators - not software polling - for overcurrent trip so protection survives firmware lock-up.
When closing fast control loops, sample the ADC synchronized to the PWM period (trigger ADC conversion just before the PWM new-period point) to avoid switching ripple aliasing into the feedback signal. Use the DSP MAC instructions in the interrupt service routine and keep the ISR shorter than one PWM period at your chosen switching frequency; if loop math exceeds the budget, reduce resolution or move filtering into hardware via the comparators.
Compliance Information
RoHS compliance and lead-free status per Microchip/distributor listings (DigChip, DigiKey). REACH, halogen-free and conflict-minerals declarations were not present in the provided data - obtain official certificates from Microchip's compliance portal.
