dsPIC33FJ32GS606-E/MR - 16-bit DSC 40MIPS 32KB Flash | Microchip
MPN: DSPIC33FJ32GS606-E/MR ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $6.21 | $6.21 |
| 10 | $5.64 | $56.40 |
| 100 | $5.15 | $515.00 |
| 500 | $4.79 | $2,395.00 |
| 1,000 | $4.42 | $4,420.00 |
DSPIC33FJ32GS606-E/MR Overview
A digital signal controller combines the deterministic control of a microcontroller (MCU) with the mathematical throughput of a digital signal processor (DSP) in a single core. In the power-management hierarchy, the dsPIC33FJ GS series sits at the application level of switch-mode power supply (SMPS) control: it closes current- and voltage-control loops that would otherwise require multiple analog ICs, making it a programmable power-conversion controller rather than a fixed-function chip.
Key features include a high-speed PWM module purpose-built for power conversion, high-speed ADC and analog comparators for cycle-by-cycle current limiting, four DMA channels, eight timers, boundary-scan (JTAG) capability, a barrel shifter for fast DSP math, and dual serial I/O ports on a multiple internal bus architecture. These peripherals directly support multi-loop digital power topologies.
Technically, the dsPIC RISC core executes most instructions in a single cycle at up to 40 MIPS from a 3.0V to 3.6V (3.3V nominal) supply. The dedicated PWM hardware supports complementary outputs, dead-time insertion, and fault protection, while the fast ADC can synchronize sampling to the PWM period, which is essential for stable average-current-mode control. An internal regulator requires a low-ESR capacitor of at least 22 uF, 16V on the VCAP pin, which must not be tied to VDD.
Typical applications are AC-to-DC converters, DC-to-DC converters, power factor correction (PFC) stages including interleaved PFC reference designs up to 350W, uninterruptible power supplies (UPS), and solar inverters.
For design, budget the VCAP capacitance and PCB copper area early: at 40 MIPS the core draws its full current continuously in power-conversion duty, and incorrect VCAP decoupling is a leading cause of brown-out resets in this family.
This page adds value beyond the datasheet by consolidating distributor stock and pricing, same-package drop-in alternatives, and practical design notes for digital power designs in one place.
Drop-in alternatives for DSPIC33FJ32GS606-E/MR — 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 DSPIC33FJ32GS606-E/MR (same form factor and footprint) — differing in Core Architecture, Operating Temperature, Package, Target Applications.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33FJ32GS606-50E/MR
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33FJ64GS606-E/MR
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$4.43 / Unit
View Datasheet →DSPIC33FJ64GS606-50E/MR
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33FJ32GS606-50I/MR
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33FJ32GS606-E/MR Maximum Ratings & Electrical Characteristics
| Core Architecture | 16-bit dsPIC33F RISC with DSP extensions |
| Maximum Clock / Performance | 40 MIPS (40 MHz) |
| Flash Program Memory | 32 KB (32K x 8) |
| RAM | 4 KB (4096 B) |
| Supply Voltage | 3.0 V to 3.6 V (3.3 V nominal) |
| Package | 64-VQFN (9x9 mm) with exposed pad |
| Operating Temperature | -40C to +125C (extended, E grade) |
| Timers | 8 |
| DMA Channels | 4 |
| Serial I/O Ports | 2 |
| Peripheral Highlights | High-Speed PWM, high-speed ADC, comparators |
| Special Functions | Barrel shifter, boundary scan, multiple internal bus architecture |
| Target Applications | SMPS and digital power conversion |
| Automotive Qualification | Automotive-suitable family (per FindIC listing) |
| Mounting Type | Surface Mount |
| Packaging | Tube |
| Process Technology | CMOS |
| VCAP Requirement | Min 22 uF, 16 V low-ESR (<0.5 ohm), not connected to VDD |
DSPIC33FJ32GS606-E/MR 64-vqfn (9x9 mm) with exposed pad Pin Configuration Guide
Pin configuration for DSPIC33FJ32GS606-E/MR (64-vqfn (9x9 mm) with exposed pad 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 DSPIC33FJ32GS606-E/MR.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33FJ32GS606-E/MR is suitable for 6 applications: AC-to-DC Converters, DC-to-DC Converters, Power Factor Correction (PFC), Uninterruptible Power Supplies (UPS), Solar Inverters and MPPT, Industrial Motor Control and Digital Power Racks.
AC-to-DC Converters
The dsPIC33FJ32GS606-E/MR fits off-line AC-DC front ends because its high-speed PWM generates complementary gate drive with programmable dead time, while the high-speed ADC samples output voltage and inductor current every switching cycle at 40 MIPS compute throughput. In a typical flyback or LLC controller firmware, the DSC closes the voltage loop in software and uses the analog comparators for cycle-by-cycle overcurrent trips without CPU latency. Because the whole control law is firmware, one silicon SKU serves multiple output-voltage products, cutting BOM variety. Trade-off: expect to budget development and code-verification effort that a fixed-function controller would not need.
Recommended
DC-to-DC Converters
For synchronous buck, boost, or half-bridge DC-DC stages, the dsPIC33FJ32GS606-E/MR aligns well: its high-speed PWM supports phase-shifted and complementary outputs with hardware dead-time insertion, and the ADC can be triggered by the PWM time base so feedback sampling lands away from switching edges, minimizing noise in the control loop. The 4 DMA channels move ADC results to RAM without CPU intervention, preserving loop bandwidth at 40 MIPS. The E temperature grade (-40C to +125C) suits telecom rectifier and onboard converter environments. Design note: use the internal regulator's 22 uF, 16V low-ESR VCAP requirement exactly as the datasheet specifies to avoid reset glitches during load transients.
Recommended
Power Factor Correction (PFC)
Power factor correction is the flagship application of the GS series: Microchip ships an interleaved PFC reference design based on these DSCs that works from universal input voltage and produces a high-voltage DC output up to 350W. The dsPIC33FJ32GS606-E/MR closes the outer voltage loop and inner current loop in firmware, computes the current reference from the rectified line waveform, and uses the high-speed ADC synchronized to the PWM for per-cycle inductor current sampling. The analog comparators provide hardware overcurrent shutdown faster than any software loop. Interleaved two-phase topologies fit naturally since the PWM module drives multiple phase legs from one controller, reducing phase-current ripple and input EMI filter size.
Recommended
Uninterruptible Power Supplies (UPS)
Line-interactive and double-conversion UPS systems need a controller that simultaneously manages an AC-DC charger, a DC-AC inverter, and transfer logic - exactly the multi-loop case the dsPIC33FJ32GS606-E/MR was designed for per Microchip's application positioning. The 40 MIPS core runs the inverter sinusoidal modulation and the charger current loop concurrently, while eight timers handle transfer timing, battery-test scheduling, and PWM fault blanking. The 2 serial I/O ports provide communication to a front-panel or host, and four DMA channels keep ADC servicing deterministic. The extended -40C to +125C rating suits outdoor cabinet UPS installations where ambient temperatures exceed standard industrial limits.
Recommended
Solar Inverters and MPPT
Grid-tied solar micro-inverters and MPPT charge controllers benefit from the dsPIC33FJ32GS606-E/MR's combination of DSP math (barrel shifter accelerates MPPT perturb-and-observe and power computations) and power-specific peripherals. The high-speed PWM drives the boost stage at fixed frequency with dead-time control, the ADC samples panel voltage/current and grid voltage each cycle, and firmware implements anti-islanding and synchronization logic. The multiple internal bus architecture lets the DSP engine and general-purpose control code run without resource contention. With 32KB Flash, compact single-phase MPPT firmware including protection and communication fits with margin; larger grid-code compliance code bases should step up to the pin-compatible 64KB dsPIC33FJ64GS606-E/MR.
Recommended
Industrial Motor Control and Digital Power Racks
Beyond pure power conversion, the dsPIC33FJ32GS606-E/MR serves industrial racks combining servo-adjacent motor drives and distributed DC rails. The 40 MIPS 16-bit core executes field-oriented control inner loops for small motors, while the high-speed PWM with fault inputs provides safe shutdown on comparator trips. Eight timers support encoder interface and task scheduling, and boundary-scan capability aids in-circuit test on dense industrial backplanes. The -40C to +125C E-grade and automotive-suitable family positioning make it viable for factory automation environments with hot enclosures. For designs needing only housekeeping control, a PIC18 from the XAIPART catalog is more cost-effective; reserve the GS DSC for loops with sub-millisecond dynamics.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33FJ32GS606-E/MR — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33FJ32GS606-50E/MR | DSPIC33FJ64GS606-E/MR | DSPIC33FJ64GS606-50E/MR | DSPIC33FJ32GS606-50I/MR |
|---|---|---|---|---|---|
| Package | 64-VQFN (9x9 mm) with EP | 64-VQFN (9x9 mm) - same | 64-VQFN (9x9 mm) - same | 64-VQFN (9x9 mm) - same | 64-VQFN (9x9 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Performance | 40 MIPS | 50 MIPS | 40 MIPS | 50 MIPS | 50 MIPS |
| Flash Program Memory | 32 KB | 32 KB | 64 KB | 64 KB | 32 KB |
| RAM | 4 KB | 4 KB | 4 KB | 4 KB | 4 KB |
| Operating Temperature | -40C to +125C (E) | -40C to +125C (E) | -40C to +125C (E) | -40C to +125C (E) | -40C to +85C (I) |
| 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 | 3.0 V to 3.6 V |
| SMPS Peripherals (PWM/ADC/Comparators) | Yes - high-speed set | Yes - identical set | Yes - identical set | Yes - identical set | Yes - identical set |
Key Differentiators
- Purpose-built SMPS peripheral set, not a repurposed general-purpose MCU (vs DSPIC33FJ32GS606-50E/MR)
- Extended temperature rating with automotive-suitable family positioning (vs DSPIC33FJ32GS606-50I/MR)
- Lowest Flash footprint in the pin-compatible GS606 family, minimizing cost (vs DSPIC33FJ64GS606-E/MR)
- Honest trade-off: 40 MIPS ceiling (vs DSPIC33FJ64GS606-50E/MR)
Design Notes
The internal LDO output on VCAP must be decoupled with a minimum 22 uF, 16V capacitor with ESR below 0.5 ohms to ground, and VCAP must never be connected to VDD - per the Microchip family datasheet. Use an X5R/X7R ceramic and verify the DC-bias derating: a 22 uF 0805 ceramic can lose 30-50% of its capacitance at the regulator voltage, so a 47 uF part often lands at the effective minimum. Undersized VCAP is the leading cause of spurious brown-out resets during load transients on this family.
On the 64-VQFN (9x9 mm) exposed-pad package, solder the thermal pad to a ground plane array of vias - it carries the device ground return and dissipates heat at 40 MIPS sustained operation. Connect every VDD/VSS pair per the datasheet power-pin diagram; omitting a VSS connection on QFN parts is a common bring-up failure. Keep the PGECx/PGEDx ICSP header on one numbered pair (e.g., PGEC2/PGED2) and route it away from the PWM gate-drive nets to avoid debug-connector noise injection.
Because the ADC sampling window can be triggered by the high-speed PWM time base, configure sampling points away from switching edges and gate-drive transitions; this eliminates the need for heavy analog filtering that would degrade loop phase margin. Keep the analog reference path (VDD/VSS to AVDD/AVSS as applicable per datasheet) star-routed, and place a local 0.1 uF plus bulk capacitor at each supply pin. For multi-phase converters, verify dead-time settings under worst-case temperature on the bench before release.
Compliance Information
Distributor listings describe the family as automotive-suitable, but explicit RoHS/REACH/lead-free status for this exact ordering code was not stated in the provided verified data. Verify on the official Microchip product page (microchip.com/en-us/product/dsPIC33FJ32GS606) or its environmental data sheet before release.
