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DSPIC33FJ16GS502-50I/SO - 16-bit SMPS DSC, 50 MIPS, 28-SOIC | Microchip
DSPIC33FJ16GS502-50I/SO

DSPIC33FJ16GS502-50I/SO - 16-bit SMPS DSC, 50 MIPS, 28-SOIC | Microchip

The Microchip Technology DSPIC33FJ16GS502-50I/SO is a 16-bit Digital Signal Controller (DSC) optimized for switch-mode power supply (SMPS) and digital power-conversion applications, integrating a high-performance dsPIC33F CPU core with a 50 MIPS operating speed and 16 KB of on-chip Flash program memory in a 28-pin SOIC wide-body package. The device combines DSP computational throughput with microcontroller peripherals on a single die, executing up to 50 million instructions per second while supporting the deterministic control loops required for multi-rail power topologies such as AC/DC converters, isolated DC/DC stages, power factor correction (PFC) stages, and uninterruptible power supplies. A Digital Signal Controller is a class of embedded processor that fuses a microcontroller's deterministic interrupt-driven control architecture with a digital signal processor's MAC engine and single-cycle hardware loop buffer. In the broader embedded hierarchy, the DSC sits between a general-purpose MCU and a standalone DSP, making it well suited to applications that simultaneously require sensor sampling, fast arithmetic on filtered variables, and tight feedback control. The dsPIC33F family, of which the DSPIC33FJ16GS502 is a member, was specifically engineered for digital power conversion, with peripheral sets that include high-speed PWM, high-speed ADC, and analog comparators tightly coupled to the CPU for sub-microsecond control-loop latency. Key features of the DSPIC33FJ16GS502-50I/SO include up to four high-speed PWM channels with 1.04 ns resolution, two 10-bit DAC outputs for slope compensation or reference generation, four high-speed analog comparators for cycle-by-cycle current limiting, and a 10-bit ADC with a 4 Msps conversion rate. The 28-pin SOIC package exposes the full SMPS-oriented peripheral set while fitting into designs where board height is constrained and through-hole or quad-pack alternatives are not desired. Industrial temperature range of -40C to +85C is supported by the -50I suffix. Typical applications include digitally controlled AC/DC power supplies, isolated DC/DC converters using peak-current-mode or average-current-mode control, bridgeless PFC stages, solar micro-inverters, digital welding power sources, and uninterruptible power systems. The high-speed analog comparator block enables cycle-by-cycle over-current protection that trips within a single PWM period, a feature that is essential when controlling SiC, GaN, or high-current silicon MOSFET switching stages where protection latency directly affects system reliability. Companion products in a typical design include a Microchip MCP16311 or MCP19114 analog front-end, gate-driver ICs such as the MCP14 family, and current-sense amplifiers built from low-offset op-amps such as the MCP6C04. When designing with the DSPIC33FJ16GS502-50I/SO, ensure that the AVSS pin is tied to a clean analog ground return that does not share a path with high-di/dt switching currents, since the integrated ADC and comparators rely on a low-noise reference for accurate current sensing. The internal LDO regulator that supplies the core from VDD must be bypassed with a 10 microfarad ceramic capacitor placed within 5 mm of the VCAP pin; without this capacitor the part will not start up reliably. Programming is supported through the device's ICSP interface and the JTAG boundary-scan port, both accessible via Microchip's MPLAB X IDE and the MPLAB ICD 3 or PICkit 4 in-circuit debugger. This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes not found in the manufacturer datasheet alone, providing a single reference for engineers evaluating the DSPIC33FJ16GS502-50I/SO for digital power designs.

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DSPIC33FJ16GS502-50I/SP - 50 MIPS 16-bit DSC, 28-SPDIP | Microchip
DSPIC33FJ16GS502-50I/SP

DSPIC33FJ16GS502-50I/SP - 50 MIPS 16-bit DSC, 28-SPDIP | Microchip

The Microchip Technology DSPIC33FJ16GS502-50I/SP is a 16-bit Digital Signal Controller (DSC) from the dsPIC33F family, delivering 50 MIPS of performance and housed in a 28-pin SPDIP (Skinny Plastic DIP) through-hole package. The device integrates a high-performance dsPIC33F CPU core with DSP engine, 16 KB of Flash program memory, and is targeted at digital power-conversion and SMPS (Switch-Mode Power Supply) applications. A Digital Signal Controller (DSC) is a hybrid architecture that combines the deterministic interrupt response and peripheral set of a microcontroller with the computational throughput of a Digital Signal Processor (DSP). DSCs sit in the taxonomy between microcontrollers (MCUs) and standalone DSPs, and are commonly deployed in real-time control loops where both high-bandwidth analog sampling and fast numerical computation are required. The dsPIC33F family is Microchip's first DSC generation and remains popular for cost-sensitive digital power designs. Key features of the DSPIC33FJ16GS502-50I/SP include a 50 MHz maximum operating frequency (50 MIPS), on-chip high-speed PWM modules optimized for multi-loop SMPS topologies, a 10-bit A/D converter with up to 4 Sample-and-Hold channels for simultaneous voltage/current sensing, and fast analog comparators that enable hardware-based cycle-by-cycle current limiting. The device operates from a 3.0 V to 3.6 V supply (3.3 V nominal) and supports JTAG boundary scan for production test. From a system-design standpoint, the part integrates Flash with ICSP (In-Circuit Serial Programming) and supports both In-Circuit and In-Application Programming, which allows firmware updates in the field. The CPU architecture includes a barrel shifter and a 16 x 16-bit single-cycle MAC, making it suitable for PID compensation, state-space control, and power-quality math (THD, RMS) without external DSP chips. Typical applications span digital switch-mode power supplies (AC-DC, DC-DC, PFC), uninterruptible power supplies (UPS), digital lighting ballasts, and motor-control platforms where the high-speed PWM and ADC combination is mandatory. The 28-SPDIP package also makes it suitable for evaluation boards, prototypes, and through-hole industrial assemblies where SMT is undesirable. When designing with this part, observe the maximum I/O pin current ratings, provide adequate decoupling (100 nF plus bulk) near each VDD/VSS pair, and consult the family datasheet for PWM dead-time and ADC acquisition-time programming constraints. Designers should also plan for code protection if the device ships with proprietary firmware. This page consolidates distributor pricing, drop-in 28-SPDIP alternatives from the same dsPIC33F family, and design notes that extend beyond the manufacturer datasheet to help engineers select and qualify the right part for SMPS and digital-power designs.

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DSPIC33FJ16GS502-E/MM - 16-bit 40 MIPS SMPS DSC | Microchip
DSPIC33FJ16GS502-E/MM

DSPIC33FJ16GS502-E/MM - 16-bit 40 MIPS SMPS DSC | Microchip

The Microchip Technology DSPIC33FJ16GS502-E/MM is a high-performance 16-bit Digital Signal Controller (DSC) in the dsPIC33F family, optimized for digital power conversion and switch-mode power supply (SMPS) applications. It combines a 40 MIPS dsPIC DSC core with 16 KB of Flash program memory and 2 KB of RAM, all housed in a 28-pin 6x6 mm QFN-S package (MM). The '-E' suffix denotes the extended industrial temperature grade of -40C to +125C. A Digital Signal Controller (DSC) is a hybrid device that fuses a microcontroller (MCU) with a Digital Signal Processor (DSP) on a single die. Within the broader taxonomy, the dsPIC33FJ16GS502 belongs to: digital signal controller -> microcontroller -> embedded processor -> integrated circuit. Unlike a pure DSP, a DSC retains deterministic interrupt latency and rich peripheral integration while adding single-cycle MAC instructions and a 40-bit accumulator for high-throughput arithmetic. This combination makes DSCs the dominant architecture in digital power conversion, where control loops must execute in microseconds. Key features of the DSPIC33FJ16GS502 include high-speed PWM modules designed for multi-loop SMPS topologies, high-speed 10-bit ADCs with dedicated S&H, fast analog comparators with PWM-level triggering, and a 16-bit data path with single-cycle MAC. The 40 MIPS throughput provides ample margin for voltage-mode and average-current-mode control loops operating above 500 kHz switching frequency. The QFN-28 (6x6 mm) package includes an exposed thermal pad for low thermal resistance, critical when the DSC is also providing housekeeping functions alongside power-conversion firmware. Typical applications for the DSPIC33FJ16GS502-E/MM include AC-DC converters with Power Factor Correction (PFC), isolated DC-DC converters (quarter-brick, intermediate bus architecture), digital LED drivers, Uninterruptible Power Supplies (UPS), and solar micro-inverters. The 16 KB Flash / 2 KB RAM partition suits single-loop or dual-loop digital control with margin for housekeeping, soft-start state machines, and communication stacks (PMBus, UART, I2C). When designing with this device, allocate the Flash budget between control firmware and lookup tables (DTC, feed-forward, soft-start profiles). Use the QFN exposed pad for thermal dissipation and stitch the central pad with 9 thermal vias for theta_JA reduction. Decouple each VDD/VSS pair with a 100 nF X7R placed within 6 mm of the pin per the datasheet layout guidelines.

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DSPIC33FJ16GS502-E/MX - 16-bit SMPS DSC, 16KB Flash, 28-UQFN | Microchip
DSPIC33FJ16GS502-E/MX

DSPIC33FJ16GS502-E/MX - 16-bit SMPS DSC, 16KB Flash, 28-UQFN | Microchip

The Microchip DSPIC33FJ16GS502-E/MX is a 16-bit dsPIC33F Digital Signal Controller (DSC) with 16KB of Flash program memory, 2048 bytes of RAM, and integrated SMPS peripherals, housed in a 28-pin UQFN (6x6 mm) package with an exposed thermal pad. It executes instructions at up to 40 MIPS from a 3.0V to 3.6V supply, targets automotive-grade temperature operation from -40C to +125C, and combines a high-performance DSP engine with controller peripherals optimized for digital power conversion. Key silicon features include 6 high-speed PWM channels, 4 high-speed analog comparators with DAC reference, 2 on-chip voltage references, a 10-bit ADC capable of up to 4 MSPS, and 2 op-amps configured for current-shunt amplification in closed-loop digital power topologies. A Digital Signal Controller (DSC) is a hybrid MCU+DSP device combining a microcontroller's deterministic control peripherals with a DSP's parallel math engine, allowing cycle-accurate control loops alongside fast math transforms. Within the broader taxonomy it sits under microcontroller -> DSC -> dsPIC33F family -> SMPS-optimized variants, supplying the compute density required for multi-loop digital switch-mode power supply (SMPS) regulation where standard MCUs lack the cycle headroom or DSP performance. The DSP engine includes a 40-bit accumulator, dual 40-bit accumulators selectable for MAC operations, and 17x17-bit single-cycle hardware multiplier, while the controller side adds a 16-bit timer, watchdog timer, I2C, SPI, UART, and JTAG boundary scan for production test. The 6-channel PWM module supports complementary outputs with programmable dead-time, fault inputs, and 1.04 ns edge resolution, making it suitable for phase-shifted full-bridge, totem-pole PFC, and LLC converter control. The high-speed analog comparators trip in under 30 ns for cycle-by-cycle current limiting. With its 40 MIPS performance and dedicated SMPS peripherals, the DSPIC33FJ16GS502-E/MX targets digital power conversion applications such as AC-DC converters, DC-DC converters, power factor correction (PFC) stages, uninterruptible power supplies, and LED lighting drivers. Multiple control loops can run from a single chip while maintaining deterministic timing. Designers should pair it with isolated gate drivers and high-resolution shunts to fully exploit the analog comparator bandwidth and PWM edge resolution.

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DSPIC33FJ16GS502-E/SO - 40 MIPS 16-bit SMPS DSC | Microchip
DSPIC33FJ16GS502-E/SO

DSPIC33FJ16GS502-E/SO - 40 MIPS 16-bit SMPS DSC | Microchip

The Microchip Technology DSPIC33FJ16GS502-E/SO is a high-performance 16-bit Digital Signal Controller (DSC) engineered for digital power conversion. Operating up to 40 MIPS, the device integrates a dsPIC33F CPU core, 16 KB Flash program memory, and 2 KB RAM in a 28-pin SOIC package, targeting Switch-Mode Power Supply (SMPS), AC/DC, DC/DC, Power Factor Correction (PFC), and uninterruptible power supply designs. A digital signal controller combines a microcontroller with DSP computational capabilities. The dsPIC33F family adds high-speed analog peripherals including multi-output high-resolution PWM modules, fast 10-bit ADCs (up to ~2 Msps depending on configuration), analog comparators, and DMA, enabling tight feedback loops in digital power topologies. Compared with conventional MCUs, DSCs execute DSP-friendly instructions (MAC, barrel shift, single-cycle multiply) while retaining deterministic interrupt latency essential for digital control loops. The DSPIC33FJ16GS502 variant features high-speed PWM channels optimized for power conversion (multi-PWM outputs, complementary modes, fault inputs, programmable dead-time), 21 general-purpose I/O pins, an integrated 10-bit ADC with up to ~2 Msps conversion rate, and dedicated analog comparators for current-mode control. The enhanced (E) temperature grade supports -40C to +125C operation. The 28-pin SOIC (SO) package provides robust mechanical tolerance for industrial power boards, while a 28-pin QFN option (-E/MM) is also available within the family for space-constrained designs. Architecture details include a modified Harvard bus, 16-bit wide data path, single-cycle hardware multiply, and a 16x16-bit signed fractional MAC engine. The device is supported by Microchip's MPLAB X IDE, MPLAB XC16 compiler, and the MPLAB Code Configurator, with extensive application notes covering digital PFC, full-bridge converters, and resonant LLC topologies. In-circuit serial programming (ICSP) and JTAG boundary-scan facilitate production programming and board-level test. Typical applications span digital telecom rectifier modules (48V to POL), industrial variable-frequency drives, solar micro-inverters, server and datacom intermediate bus converters, LED driver PFC stages, and battery-charging controllers. The PWM/ADC/comparator combination enables peak current-mode control with sub-microsecond loop bandwidth. When designing with this part, dedicate separate analog and digital ground planes tied at a single point near the AGND pin, and bypass VDD/VSS with 100 nF ceramic placed within 3 mm of each supply pin. Confirm PWM and ADC timing budgets against the 40 MIPS instruction rate to ensure deterministic sampling of the current-sense comparator. This page synthesizes real-time distributor pricing, parametric drop-in alternatives, and practical design notes not found in the standalone datasheet, providing engineers with a single decision-ready reference for SMPS DSC selection.

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DSPIC33FJ16GS502-E/SP - 16-bit SMPS DSC, 40MHz, 16KB | Microchip
DSPIC33FJ16GS502-E/SP

DSPIC33FJ16GS502-E/SP - 16-bit SMPS DSC, 40MHz, 16KB | Microchip

The Microchip Technology DSPIC33FJ16GS502-E/SP is a 16-bit, fixed-point Digital Signal Controller (DSC) targeted at digital switch-mode power supply (SMPS) applications, operating at up to 40 MHz with 16 KB of Flash program memory and 2 Kbytes of RAM. It is supplied in a 28-pin SPDIP package and operates from a 3.0 V to 3.6 V supply, integrating high-speed PWM modules, high-speed 10-bit ADCs, and analog comparators that are essential for multi-loop digital power conversion. A Digital Signal Controller is a hybrid device class that combines the deterministic interrupt response and peripheral set of a Microcontroller (MCU) with the Multiply-Accumulate (MAC) throughput of a Digital Signal Processor (DSP). It sits within the broader device taxonomy as: dsPIC33 -> 16-bit DSC -> microcontroller -> embedded processor -> semiconductor. The DSPIC33FJxxGSxxx family is specifically designed for power conversion, providing the on-chip analog and timer peripherals needed to close voltage and current loops in software. Key features of the DSPIC33FJ16GS502-E/SP include a barrel shifter for high-speed arithmetic, JTAG/ICS programming/debug support via boundary scan, and CMOS low-power process technology. The integrated high-speed PWM (with PWM resolution and frequency optimized for SMPS feedback loops) and the high-speed 10-bit ADC allow the device to sample and regulate switching converters at typical SMPS switching frequencies of 100 kHz to 1 MHz, enabling digital control techniques that are difficult to implement in pure analog controllers. From an architectural standpoint, the DSPIC33FJ16GS502-E/SP uses a Harvard architecture with separate program and data paths, a 16 x 16-bit working register array, and a hardware MAC for inner-product computation. The C compiler-friendly instruction set delivers deterministic real-time performance, which is critical when the controller is called upon to service multiple control loops within a single PWM period (often under 10 microseconds in a 100 kHz converter). Typical applications include AC-DC converters, DC-DC converters (quarter-brick and intermediate bus), Power Factor Correction (PFC) stages, uninterruptible power supplies (UPS), and digital illuminator / LED drivers. The Extended (-E) temperature grade and SPDIP package make it well suited to industrial-class through-hole power boards where rework and thermal ruggedness are valued. Designers may also pair it with Microchip's reference designs for "easy evaluation" of SMPS controllers in quarter-brick topologies. When laying out a board around this device, ensure decoupling is placed within a few millimetres of every supply pin, and keep analog and digital ground returns separated until they join at the bulk input capacitor. The high-speed PWM and ADC traces should be routed away from switching node edges to minimize common-mode noise injection. This page synthesizes distributor pricing, drop-in SPDIP/package alternatives, and practical digital-power design notes not found in the bare datasheet, and is intended to accelerate the device's evaluation in new digital power designs.

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DSPIC33FJ16GS502-H/MM - 16-bit DSC, 16KB Flash, 40 MIPS | Microchip
DSPIC33FJ16GS502-H/MM

DSPIC33FJ16GS502-H/MM - 16-bit DSC, 16KB Flash, 40 MIPS | Microchip

The Microchip Technology DSPIC33FJ16GS502-H/MM is a 16-bit dsPIC33F Digital Signal Controller (DSC) rated for 40 MIPS (50 MHz maximum input clock) operation, packaged in a 28-pin QFN-S 6x6 mm plastic module. It integrates 16 KB of Flash program memory, 2 KB of RAM, and is designed around the dsPIC33F CPU core with DSP-enhanced Harvard architecture for high-speed digital power conversion loops. The 16-bit data path, combined with hardware MAC and barrel shifter resources, lets the device execute single-cycle 16x16-bit multiply-accumulate operations essential for real-time control. A Digital Signal Controller (DSC) is a hybrid device class that combines a microcontroller (MCU) deterministic real-time control peripheral set with a digital signal processor (DSP) computational engine. DSCs sit hierarchically between microcontrollers (simpler control) and full DSP processors (heavier signal-processing throughput), and within power management they bridge analog SMPS controllers and software-defined digital control loops. The DSPIC33FJ16GS502-H/MM is part of Microchip's SMPS-targeted dsPIC33F GS family, deliberately optimized for digital switch-mode power supply (SMPS), AC-to-DC, DC-to-DC, and Power Factor Correction (PFC) topologies. Key features include high-speed PWM with complementary outputs and programmable dead time, high-speed 10-bit or 12-bit ADCs with multi-sample-and-hold capable of synchronizing to the PWM, fast analog comparators for cycle-by-cycle current limiting, 21 general-purpose I/O, five timers, JTAG boundary scan, and support for in-circuit and in-application programming. The -H temperature grade extends operation to 150°C junction (automotive/extended industrial grade). The QFN-28 package provides a low thermal-resistance exposed pad, allowing continuous high-current switching drive at full SMPS load. Typical applications span digital telecom DC-DC converters, quarter-brick intermediate bus architectures, PFC boost stages, AC-DC adapters, digital lighting ballasts, and motor control. The high-speed PWM, ADC, and comparator trio is specifically arranged for multi-loop SMPS feedback, with sampling edges programmable to align with PWM edges for sub-microsecond control loop latency. When designing, place decoupling within 6 mm of each VDD/VSS pair, route analog AVSS/AVDD separately from digital grounds, and follow Microchip's family BSDL/symbol files for JTAG chain layout. Always configure the PWM fault input and current sense comparator before enabling outputs to avoid inrush damage. This page synthesizes distributor pricing, drop-in temperature/speed-grade alternatives, and practical PCB design notes not collected in the manufacturer datasheet alone.

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DSPIC33FJ16GS502-H/SO - 16-bit DSC, 16KB Flash, 50MHz | Microchip
DSPIC33FJ16GS502-H/SO

DSPIC33FJ16GS502-H/SO - 16-bit DSC, 16KB Flash, 50MHz | Microchip

The Microchip Technology DSPIC33FJ16GS502-H/SO is a 16-bit digital signal controller (DSC) from the dsPIC33F SMPS family, featuring 16 KB of Flash program memory and 2 KB of RAM in a 28-pin SOIC package. It runs at up to 50 MHz (40 MIPS) with a dsPIC DSC core that combines a high-performance 16-bit MCU with DSP capabilities for digital power-conversion applications. A Digital Signal Controller (DSC) is a hybrid device that merges a microcontroller (MCU) with a digital signal processor (DSP). Within the broader semiconductor hierarchy, a DSC sits between a microcontroller and a full DSP, optimized for deterministic real-time control loops. The dsPIC33F family specifically targets Switch-Mode Power Supply (SMPS) and digital power conversion, integrating high-speed PWM, ADC, and analog comparators on-chip. Within the Microchip taxonomy, the DSC belongs to the dsPIC33F SMPS sub-family, which is part of the 16-bit DSC category, then the broader Microcontroller hierarchy, and ultimately the Integrated Circuits class of semiconductors. Key features include 4 high-speed PWM outputs with up to 9 PWM pairs for multi-loop SMPS topologies, a 10-bit ADC with up to 500 ksps conversion rate, three on-chip analog comparators for cycle-by-cycle current limiting, and a JTAG boundary scan interface. The device integrates a single-cycle MAC engine, a 40-bit accumulator for DSP operations, and supports fractional (Q15) data formats. It also offers 5 external interrupt sources, a watchdog timer, and an in-circuit/in-application programming capability for field updates. Typical applications include digital switch-mode power supplies (SMPS), AC/DC converters, DC/DC converters, power factor correction (PFC) circuits, uninterruptible power supplies (UPS), and digital lighting ballasts. The 28-pin SOIC package variant (the -H/SO) supports industrial temperature range -40C to +150C and provides sufficient I/O for multi-loop control without requiring external glue logic. When designing with this device, allocate adequate PCB area for the analog and power-ground split to keep PWM switching noise away from ADC inputs. Use the device's high-speed analog comparators for hardware cycle-by-cycle current protection, which is faster than software-based approaches. Pairing with a suitable gate driver and proper decoupling on AVDD/VDD pins improves ADC accuracy and overall system stability in high-noise environments. This page synthesizes Microchip datasheet specifications, distributor pricing, drop-in package alternatives (28-pin SOIC), and practical SMPS design notes not found on a single manufacturer page, delivering information gain for engineers evaluating dsPIC33F SMPS controllers.

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DSPIC33FJ16GS502-H/SP - 16-bit 50MHz 16KB Flash DSP | Microchip
DSPIC33FJ16GS502-H/SP

DSPIC33FJ16GS502-H/SP - 16-bit 50MHz 16KB Flash DSP | Microchip

The Microchip Technology DSPIC33FJ16GS502-H/SP is a 16-bit, 50 MIPS Digital Signal Controller (DSC) in the dsPIC33F SMPS family, integrating 16 KB of Flash program memory, 2 KB of RAM, a high-speed 10-bit ADC, four analog comparators, and dedicated Pulse-Width Modulation (PWM) peripherals. It is supplied in a 28-pin SPDIP (Skinny Plastic DIP) package with the -H temperature grade (-40C to +150C), making it the high-temperature variant of the dsPIC33FJ16GS502 series. The CPU runs up to 40 MIPS at 3.3 V and is optimized for digital power conversion loop math. A Digital Signal Controller (DSC) is a hybrid device that combines the deterministic interrupt response and peripheral set of a microcontroller with the multiply-accumulate (MAC) capability of a DSP. In the component taxonomy, the DSPIC33FJ16GS502-H/SP sits as: DSC -> dsPIC33F family -> SMPS/Digital-Power sub-family -> 16-bit Flash controller -> semiconductor. By integrating MAC hardware on a modified Harvard bus, a single DSC replaces the conventional MCU-plus-external-DSP pair used in legacy digital power designs, reducing BOM cost and board area while accelerating the control-loop closure time. Key features include 21 I/O pins, four 16-bit PWM channels with 1.04 ns resolution at 40 MIPS, a 10-bit 2 Msps ADC with up to 12 input channels, four high-speed analog comparators with programmable reference, a 16-bit timer, I2C/SPI/UART communication peripherals, and an internal 7.37 MHz oscillator with PLL. The on-chip Flash supports self-programming under firmware control, which allows in-field firmware updates without external programming hardware. Architecturally, the device uses a 16-bit modified Harvard core with a hardware DSP engine (40-bit accumulator, single-cycle MAC) and dual-ported Flash that allows DMA-style instruction fetch in parallel with data access. This dual-fetch scheme is what lets the part sustain 40 MIPS while still servicing high-frequency PWM and ADC events without CPU stalls. Typical applications include isolated and non-isolated DC/DC converters, Power Factor Correction (PFC) stages, AC/DC power supplies, uninterruptible power supplies (UPS), solar micro-inverters, LED drivers, and digital welding or induction heating control. The dedicated PWM/ADC/comparator peripheral set is specifically tuned for voltage-mode and current-mode control loops. Designers should plan for a 4-layer PCB with a ground pour under the SPDIP body to manage switching noise; the high-speed ADC tracks should be routed as short, guarded differential pairs when used for current sensing, and the AVSS/AVDD pins must be decoupled with separate ferrite-bead-isolated rails from the digital VDD. This page consolidates distributor pricing, cross-package notes for the -H/SP SPDIP, and drop-in alternatives from the dsPIC33F SMPS family not found on a single manufacturer page.

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DSPIC33FJ16GS502-I/M - 16-bit DSC, 16KB Flash, 40 MIPS | Microchip
DSPIC33FJ16GS502-I/M

DSPIC33FJ16GS502-I/M - 16-bit DSC, 16KB Flash, 40 MIPS | Microchip

The Microchip DSPIC33FJ16GS502-I/M is a 16-bit Digital Signal Controller (DSC) that combines a high-performance dsPIC DSP engine with a PIC microcontroller core, delivering 40 MIPS of processing power for switch-mode power supply (SMPS) and digital power conversion applications. Housed in a 28-pin QFN package with 16 KB of Flash program memory and 2 KB of RAM, this device integrates high-speed PWM modules, 10-bit ADCs, analog comparators, and a dedicated PWM time base optimized for multi-loop digital control of AC/DC converters, DC/DC converters, and power factor correction (PFC) stages. A Digital Signal Controller (DSC) is a hybrid device that merges the deterministic real-time control capability of a microcontroller with the high-throughput mathematical throughput of a digital signal processor. Within the broader taxonomy, a DSC sits between a microcontroller (MCU) and a full DSP - it adds DSP-style MAC (multiply-accumulate) and barrel shifter operations to a microcontroller-class architecture. The dsPIC33F family specifically targets motor control, SMPS, and digital power-conversion applications where tight feedback-loop timing and high-resolution PWM are required, and the GS502 sub-family is positioned for high-density quarter-brick DC-DC converters and other intermediate-bus architectures. Key differentiating features include up to 4 PWM channels with 1.04 ns resolution, a 10-bit ADC capable of up to 2 Msps with up to 16 input channels, four analog comparators with dedicated DAC references, and a single-cycle 16x16 hardware MAC for digital control loops. The 28-pin QFN package offers a compact 6x6 mm footprint with an exposed thermal pad that improves heat extraction for continuous-conversion applications. The device operates from a 3.0 V to 3.6 V supply with a typical 3.3 V rail, supporting industrial temperature ranges (-40C to +85C for the -I/ suffix). Architecturally, the DSPIC33FJ16GS502-I/M uses a 16-bit modified Harvard architecture with separate program and data buses plus a DMA controller, enabling deterministic instruction execution. The DSP engine adds a 40-bit accumulator, dual 16-bit working registers, and a 16x16 single-cycle hardware multiplier, supporting closed-form control loops such as PID, state-space, and average-current-mode control commonly required in digitally-controlled SMPS systems. Typical applications include digital switch-mode power supplies (PFC boost, phase-shifted full-bridge, LLC resonant converters), uninterruptible power supplies (UPS), solar inverters, digital LED lighting drivers, and motor-control BLDC/PMSM drives for industrial and renewable-energy systems. The wide SMPS-oriented peripheral set makes it equally suitable for battery chargers and telemetry front-ends. Designers should note the trade-off between computational throughput and SMPS loop latency - the 40 MIPS core can execute a full multi-loop state-machine update plus ADC reading in a single PWM cycle, but careful PWM-trigger-to-ADC-start timing and ISR placement are required to avoid jitter. The QFN exposed pad must be soldered to a sufficiently large copper pour to meet thermal dissipation needs at full MIPS operation. This page synthesizes distributor pricing, parametric drop-in alternatives, and practical design notes drawn from Microchip's dsPIC33F SMPS family documentation, providing engineering context not assembled in any single manufacturer datasheet.

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DSPIC33FJ16GS502-I/MM - 16-bit SMPS DSC, 40 MIPS, 28-QFN | Microchip
DSPIC33FJ16GS502-I/MM

DSPIC33FJ16GS502-I/MM - 16-bit SMPS DSC, 40 MIPS, 28-QFN | Microchip

The Microchip Technology DSPIC33FJ16GS502-I/MM is a 16-bit Digital Signal Controller (DSC) from the dsPIC33F "GS" family, optimized for switch-mode power supply (SMPS) and digital power conversion applications. The device integrates a high-performance dsPIC33F CPU core with DSP engine, delivering up to 40 MIPS at a 50 MHz maximum oscillator input, and is housed in a 28-pin QFN-S (6x6 mm) package. It features 16 KB of Flash program memory, 2 KB of RAM, and a fixed-point architecture with a barrel shifter. A Digital Signal Controller (DSC) is a hybrid MCU/DSP class of microcontroller that combines a deterministic microcontroller core with a single-cycle DSP engine. Within the broader taxonomy, the DSC sits between a microcontroller (MCU) and a digital signal processor (DSP): MCU -> DSC -> DSP -> signal-processing IC -> semiconductor. The dsPIC33F family is engineered specifically for high-speed closed-loop control, where the DSP engine executes multiply-accumulate (MAC) operations on current/voltage samples in single instruction cycles. Key features include high-speed PWM (up to 1.04 ns resolution) for power conversion, multiple 10-bit ADCs with as low as 2.5 MSPS conversion rate, analog comparators with programmable reference, and a wide operating voltage range of 3.0V to 3.6V (3.3V typical). The device also supports JTAG boundary scan and offers 21 digital I/O pins. Its low-power modes make it suitable for energy-conscious designs. Architecturally, the dsPIC33FJ16GS502-I/MM employs a modified Harvard architecture with separate program and data buses, allowing simultaneous instruction fetch and data access. The integrated SMPS-specific peripherals - high-resolution PWM, fast ADC, and analog comparators - eliminate the need for many external analog components typically required in discrete digital power designs, reducing BOM cost and PCB footprint. Typical applications include switch-mode power supplies (SMPS), DC-DC converters, power factor correction (PFC), uninterruptible power supplies (UPS), AC-DC converters, and digital LED lighting. The combination of DSP throughput and MCU-style peripherals makes it especially well-suited for multi-loop digital control topologies requiring high-frequency, high-resolution feedback. When designing with this device, ensure adequate decoupling on all VDD/VSS pin pairs (typically 100 nF + 10 uF bulk per pair) and follow the recommended PCB layout guidelines for the QFN thermal pad, which must be soldered to a ground plane for proper thermal dissipation. This page synthesizes distributor pricing, drop-in alternative QFQs, and practical design notes not found in the manufacturer datasheet alone.

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DSPIC33FJ16GS502-I/SP - 16-bit DSC, 50MHz, 16KB Flash, 28-SPDIP
DSPIC33FJ16GS502-I/SP

DSPIC33FJ16GS502-I/SP - 16-bit DSC, 50MHz, 16KB Flash, 28-SPDIP

The Microchip Technology DSPIC33FJ16GS502-I/SP is a 16-bit Digital Signal Controller (DSC) that integrates a dsPIC33F CPU core with high-speed analog and digital peripherals targeted at digital switch-mode power supply (SMPS) and other digital power-conversion applications. The device operates at up to 50 MHz (40 MIPS), provides 16 KB of on-chip Flash program memory and 2 KB of RAM, and is housed in a 28-pin SPDIP (Skinny Plastic DIP) through-hole package suitable for industrial control and prototyping environments. What is a Digital Signal Controller? A DSC is a hybrid between a microcontroller (MCU) and a digital signal processor (DSP). The MCU side provides deterministic control of peripherals, interrupt handling, and general I/O, while the DSP side delivers single-cycle MAC, dual-operand fetch, and a 40-bit barrel shifter for high-throughput numerical work. The dsPIC33F architecture also includes a hardware DSP engine that can execute one MAC per instruction cycle. Within the broader taxonomy, this places the DSPIC33FJ16GS502 as: DSC -> MCU+DSP hybrid -> embedded controller -> semiconductor. Key features include up to six PWM outputs with up to four duty-cycle generators and up to 1.1 ns PWM resolution, a 12-bit ADC with up to 1 Msps conversion rate (with up to 10 channels multiplexed), four analog comparators, and a high-speed 4-channel DMA controller. The part also integrates a 16-bit timer/counter, an I2C port, two UART modules, and a configurable JTAG/boundary-scan interface (per IEEE 1149.1). A wide variety of power-saving modes (Idle, Sleep, and Doze) plus a low-power Real-Time Clock/Calendar (RTCC) with on-chip 32 kHz oscillator support battery-backed operation. On the architecture side, the dsPIC33FJ16GS502 uses a 16-bit modified Harvard architecture with a 24-bit instruction word. The instruction pipeline is 2 stages for most instructions, and most DSP instructions execute in a single cycle. The device runs from 3.0 V to 3.6 V (typical 3.3 V), with a maximum supply current of 160 mA. It is rated for -40 C to +85 C industrial operation (the I/SP suffix) and is qualified to Microchip's standard industrial reliability flow. Typical applications include AC-DC converters, isolated DC-DC converters, Power Factor Correction (PFC) stages, uninterruptible power supplies (UPS), solar micro-inverters, and digital lighting ballasts. The combination of high-resolution PWM, fast ADC, analog comparators, and DMA makes this DSC well suited to multi-loop digital control loops, where the firmware must sample the output voltage and current, compute PID or state-space control law, and update PWM duty cycle within a single switching period of a few microseconds. When designing with this part, choose the SPDIP package variant (I/SP) when the board must support hand-soldered prototypes, socketed designs, or industrial through-hole assembly. For volume production, prefer the QFN variant (DSPIC33FJ16GS502-I/MM) to save PCB area. Decoupling must include at least one 0.1 uF ceramic cap per VDD/VSS pair placed within 5 mm of each pin pair, per Microchip's reference minimum connection. This page synthesizes distributor pricing, drop-in alternatives from the same family, application recommendations, and practical design notes that supplement - rather than restate - the manufacturer datasheet.

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DSPIC33FJ16GS502T-50I/SO - 50 MIPS 16-bit SMPS DSC | Microchip
DSPIC33FJ16GS502T-50I/SO

DSPIC33FJ16GS502T-50I/SO - 50 MIPS 16-bit SMPS DSC | Microchip

The Microchip Technology DSPIC33FJ16GS502T-50I/SO is a 16-bit Digital Signal Controller (DSC) in the dsPIC33F SMPS family, combining a 50 MIPS modified Harvard DSP engine with high-speed switch-mode power supply peripherals on a single die, delivered in a 28-pin SOIC package. The device integrates 16 KB of Flash program memory, 2 KB of RAM, a 50 MHz internal oscillator, dedicated PWM generators optimized for digital power conversion, four high-speed analog comparators, and a 10-bit ADC. It targets AC/DC, DC/DC, PFC, UPS, and inverter control loops where deterministic control and on-chip DSP math accelerate control-law execution. A Digital Signal Controller is a hybrid MCU+DSP class of microcontroller that fuses a deterministic microcontroller pipeline with single-cycle MAC DSP arithmetic, allowing closed-loop power-control algorithms (PID, state-space, predictive) to run at the same rate as the PWM switching frequency. In the broader taxonomy it sits between a microcontroller (MCU) and a digital signal processor (DSP); in the Microchip portfolio it belongs to the 16-bit dsPIC33F SMPS sub-family, itself a branch of the 16-bit PIC24/dsPIC family. Key features include 50 MIPS operation from a 3.0-3.6V supply, six PWM outputs with 1.04 ns resolution, four high-speed analog comparators with programmable blanking, a 12-channel 10-bit ADC with 2 MSPS conversion rate, and a 16-bit timer/capture/compare block. The high-speed PWM module supports complementary, push-pull, multi-phase, and variable-phase topologies, and the cycle-by-cycle current limiting is handled in hardware for fast fault response. Industrial-grade -40C to +85C operation supports harsh power-conversion environments. Architecture-wise the dsPIC33FJ16GS502 uses a 16-bit modified Harvard core with separate program and data buses plus an X-RAM and Y-RAM dual-read DSP path, enabling single-cycle MAC operations. The SMPS-optimized peripheral set routes comparator events directly to PWM fault inputs with sub-microsecond latency, eliminating the jitter that software-only loops introduce. Flash self-read capability supports in-application firmware updates from external memory. Typical applications include digital PFC boost converters, phase-shifted full-bridge DC/DC modules, solar micro-inverters, uninterruptible power supplies, LED drivers with analog dimming, and synchronous-rectified buck converters. Pairing the device with high-current gate drivers and current-sense amplifiers closes the analog front-end needed for peak-current-mode control. When designing with the DSPIC33FJ16GS502, route the analog ground return directly to the GND pin, keep the VDDCORE decoupling capacitor within 5 mm of the pin, and ensure the PWM fault pins have a defined state at reset. The 'T' suffix denotes tape-and-reel packaging while 'I' indicates the -40C to +85C industrial temperature range. The '50' speed grade refers to the maximum MIPS, not the input oscillator. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.

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DSPIC33FJ16GS502T-I/MM - 40 MIPS 16-bit DSC, 16KB Flash | Microchip
DSPIC33FJ16GS502T-I/MM

DSPIC33FJ16GS502T-I/MM - 40 MIPS 16-bit DSC, 16KB Flash | Microchip

The Microchip DSPIC33FJ16GS502T-I/MM is a 16-bit Digital Signal Controller from the dsPIC33F "GS" family, integrating a 40 MIPS dsPIC33F DSP-enhanced CPU core with 16 KB of Flash program memory and 2 KB of RAM, in a 28-pin QFN-S (6x6 mm) with exposed pad. It is purpose-built for digital power conversion and high-speed control loops, pairing a 16-bit modified Harvard core with up to four high-speed PWM channels (some members reach 1.1 ns resolution), three on-chip comparators and dual 10-bit ADCs sampled at approximately 2 Msps for tight current/voltage feedback. What is a Digital Signal Controller (DSC)? A DSC is a hybrid of a microcontroller (MCU) and a digital signal processor (DSP): the MCU side brings deterministic interrupt-driven control, while the DSP side delivers single-cycle MAC operations, hardware barrel-shifter loops and zero-overhead DO/REPEAT primitives. In the hierarchy, a DSC sits between a generic 16-bit MCU and a full DSP, under the parent category of power-management ICs / embedded control ICs and the broader domain of microcontrollers. This makes DSCs the controller-of-record for switch-mode power supplies, motor control and digital lighting, where deterministic sub-microsecond response is mandatory. Key features include 40 MIPS CPU performance at 3.3V, an internal 7.37 MHz RC oscillator with PLL options up to 80 MHz, 21 general-purpose timers, four DMA channels, two UART, one SPI, one I2C, and a JTAG/ICD debug port. The integrated peripherals are tailored for digital-power feedback: up to 4 PWM outputs with 1.1 ns edge resolution, three high-speed analog comparators and dual SAR ADCs sharing up to 13 input channels. Architecturally, the device combines a 16-bit modified-Harvard CPU with a hardware DSP engine, dedicated motor/PWM control logic, dual SAR ADCs and a flexible interrupt controller with a 5-deep shadow register set for low-latency context save/restore. The exposed thermal pad on the QFN package reduces θJA to roughly 30 C/W on a 4-layer JEDEC EIA/JESD51 test board, enabling higher PWM duty-cycle operation in thermally tight enclosures. Typical applications include digital switch-mode power supplies (SMPS), DC-DC converters, power-factor correction (PFC), uninterruptible power supplies (UPS), induction cooking, digital LED lighting, and BLDC/PMSM motor drives. It is also used in solar micro-inverters and plasma/solenoid drivers where fast current-loop response is required. When designing with this device, keep analog ground and digital ground separated and joined only at the exposed pad to minimize switching noise coupling into ADC inputs; place the PLL bypass capacitors within 2 mm of the VDD/VCAP/AVDD pins, and derate PWM output current to stay within the package dissipation budget at full switching frequency. For AEC-Q100 automotive usage, verify whether a -E variant is in scope, because the -I suffix here is industrial-grade (-40 to +85 C), not automotive-qualified. This page synthesizes distributor inventory, AEC-Q100 context, drop-in package siblings, and practical layout/decoupling notes not gathered in any single manufacturer document.

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DSPIC33FJ16GS502T-I/SO - SMPS DSC, 40MIPS, 16KB Flash | Microchip
DSPIC33FJ16GS502T-I/SO

DSPIC33FJ16GS502T-I/SO - SMPS DSC, 40MIPS, 16KB Flash | Microchip

The Microchip Technology DSPIC33FJ16GS502T-I/SO is a 16-bit Digital Signal Controller (DSC) from the dsPIC33F SMPS family, delivering 40 MIPS of DSP performance in a 28-pin SOIC (7.50 mm body, 0.295 in) wide-body package. It combines a high-performance dsPIC MCU core with 16 KB of Flash program memory and 2 KB of RAM, plus dedicated peripherals for Switch-Mode Power Supply (SMPS) applications including high-speed PWM modules, high-speed 10-bit ADCs, and analog comparators. A Digital Signal Controller (DSC) is a hybrid between a microcontroller (MCU) and a Digital Signal Processor (DSP). Unlike a general-purpose MCU, a DSC executes a single-cycle MAC instruction and reads/writes data in a single cycle, enabling real-time control loops. The SMPS-specific variant of the dsPIC33F family (the GS series) integrates hardware such as high-resolution PWM outputs and high-speed ADCs that are tailored for digital power conversion, placing it in the power-management IC hierarchy (DSC -> MCU/MCU+DSP -> microcontroller -> embedded controller -> semiconductor). Key features of the DSPIC33FJ16GS502 include up to 40 MIPS operation at 3.0 V – 3.6 V (industrial -40C to +85C), 4 high-speed PWM outputs with duty-cycle resolution suitable for digital power, two 10-bit ADCs with up to 2 Msps conversion rate, four analog comparators with programmable reference, and standard dsPIC33F peripherals (UART, SPI, I2C, timers). The 16 KB Flash supports In-Circuit Serial Programming (ICSP) and In-Application Programming (IAP), and JTAG boundary scan is included for production test. Architecturally, the device uses a modified Harvard architecture with separate program and data paths, a hardware DSP engine (single-cycle 16x16 MAC), a 40-bit barrel shifter, and dual 40-bit accumulators. Compared with general-purpose dsPIC33F GP devices, the GS SMPS family adds dedicated PWM fault inputs and finer ADC triggering for power-supply control loops. Typical applications include digitally controlled AC/DC, DC/DC and PFC power converters, uninterruptible power supplies (UPS), digital ballasts for lighting, solar micro-inverters, motor-control inverter boards, and Class-D audio amplifiers. Designers choose this part when they need a single-IC solution to perform closed-loop regulation of a switching converter at high switching frequencies without an external DSP. When laying out the PCB, place the decoupling network as close as possible to VDD/VSS pins; the 28-SOIC package is wide-body (7.50 mm), giving good thermal dissipation for SMPS workloads. Ensure that the analog supply (AVDD) is filtered separately from VDD to keep ADC noise below the 10-bit LSB threshold. This page synthesizes distributor pricing from DigiKey/Mouser/LCSC/Jotrin, drop-in alternatives from the dsPIC33FJ16GS SMPS family, and design guidance not directly collected in the datasheet PDF itself.

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DSPIC33FJ16GS504-50I/ML - 50 MIPS 16-bit SMPS DSC | Microchip
DSPIC33FJ16GS504-50I/ML

DSPIC33FJ16GS504-50I/ML - 50 MIPS 16-bit SMPS DSC | Microchip

The Microchip Technology DSPIC33FJ16GS504-50I/ML is a 16-bit digital signal controller (DSC) targeting switch-mode power supply (SMPS) and digital power conversion applications, operating at 50 MIPS from a 50 MHz CPU clock in a 44-pin QFN (8x8 mm) package with exposed thermal pad. It integrates 16 KB of Flash program memory, 2 KB of RAM, and a dedicated DSP engine for closed-loop control loops running alongside high-speed analog peripherals designed for multi-loop digital power topologies. A Digital Signal Controller (DSC) is a hybrid microcontroller that combines a deterministic MCU core with a hardware DSP engine. Within the broader taxonomy it sits as a specialized subcategory of microcontroller (MCU -> 16-bit MCU -> DSC -> SMPS DSC -> power-conversion controller). DSCs are distinguished from conventional MCUs by their MAC unit, barrel shifter, and zero-overhead loop support, enabling real-time PID, state-machine, and digital-filter control loops essential to modern digital power conversion. Key features of the DSPIC33FJ16GS504 family include high-speed PWM modules suitable for digital power switching frequencies, multiple high-speed analog comparators with programmable reference, and dedicated 10-bit ADC channels optimized for voltage and current sensing. The device supports AC-DC converters, DC-DC converters, power factor correction (PFC), uninterruptible power supplies (UPS), and inverter stages. Boundary-scan (IEEE 1149.1) is supported for in-system test, and the ICSP programming/debug interface uses any PGECx/PGEDx pin pair. The internal architecture uses a 16-bit modified Harvard bus structure with separate program and data paths, plus a barrel shifter for single-cycle shifts. The DSP engine executes a 17-bit x 17-bit MAC in one cycle, supporting fractional and integer arithmetic needed for fast current/voltage control loops. With up to 50 MIPS throughput, the device runs multiple control loops (voltage mode, current mode, PFC) without overrunning the sample-to-update window. Typical applications include high-frequency digital SMPS, photovoltaic microinverters, telecom DC-DC bricks, LED drivers, and induction-heating controllers. It is particularly well suited to grid-tie microinverter designs where dual current/voltage loops and PFC must be executed in a single controller. Companion parts include dsPIC33FJ16GS502 (smaller-pin sibling in the same family), dsPIC33FJ16GS404 (larger memory variant), and the legacy PIC24FJ family for non-DSC alternatives. When designing with this part, careful attention to PCB layout for the exposed pad is critical for thermal dissipation, and the PGECx/PGEDx pair selection must match between ICSP programming and the chosen debugger (such as ICD 3 or REAL ICE). All VDD/VSS pin pairs must be decoupled with 100 nF ceramics close to the die. For SMPS designs, keep the analog AGND plane separate from switching grounds to avoid common-mode noise coupling. This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes for the DSPIC33FJ16GS504-50I/ML beyond what the manufacturer datasheet alone provides, including side-by-side parameter comparison against same-family variants and Microchip's general-purpose PIC18F24K40 for cost-down analysis.

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DSPIC33FJ16GS504-50I/PT - 50MIPS 16KB Flash SMPS DSC | Microchip
DSPIC33FJ16GS504-50I/PT

DSPIC33FJ16GS504-50I/PT - 50MIPS 16KB Flash SMPS DSC | Microchip

The Microchip Technology DSPIC33FJ16GS504-50I/PT is a 16-bit Digital Signal Controller (DSC) that combines DSP performance with MCU simplicity, delivering up to 50 MIPS at a maximum CPU clock of 50 MHz. It integrates 16 KB of Flash program memory and 2 KB of SRAM in a 44-pin TQFP (PT) package, and is purpose-built for digital switch-mode power supply (SMPS) and digital power conversion applications. Operating from 3.0 V to 3.6 V, the device supports -40 °C to +85 °C industrial temperature range with CMOS low-power technology. What is a Digital Signal Controller (DSC)? A DSC is a hybrid architecture that merges a microcontroller's deterministic control peripherals (timers, PWM, ADC, comparators) with a DSP engine capable of executing single-cycle MAC (multiply-accumulate) operations. The taxonomy is: DSC -> microcontroller -> embedded processor -> semiconductor. dsPIC33F devices specifically target real-time closed-loop control where high-resolution PWM and fast ADC feedback are essential, such as in digitally controlled power converters. Key features include up to four high-speed comparators with direct PWM trip-zone input, high-resolution 10-bit ADC with up to 24 input channels (4 Msps), 35 general-purpose I/O pins, and dedicated PWM modules for multi-loop SMPS topologies. The architecture supports advanced control loops for power factor correction (PFC), LLC resonant converters, and phase-shifted full-bridge topologies, all with deterministic interrupt latency critical for power-electronics control loops. Typical applications include AC-to-DC converters, isolated DC-to-DC converters (quarter-brick, intermediate bus architecture), uninterruptible power supplies (UPS), digital PFC stages, solar inverters, and LED drivers. The combination of 50 MIPS DSP throughput and dedicated SMPS peripherals enables single-DSP control of complex multi-loop converters that previously required separate controller + DSP combinations. When designing with this device, allocate sufficient PCB area for the 44-pin TQFP thermal pad and follow Microchip's SMPS layout guidelines - keep high-current switching loops short and use the dedicated PWM fault inputs to protect power MOSFETs during over-current events. Programming is supported by MPLAB X IDE with the XC16 compiler and Microchip's free dsPIC DSC SMPS Library.

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DSPIC33FJ16GS504-50I/TL - 50MIPS 16KB Flash SMPS DSC | Microchip
DSPIC33FJ16GS504-50I/TL

DSPIC33FJ16GS504-50I/TL - 50MIPS 16KB Flash SMPS DSC | Microchip

The Microchip Technology DSPIC33FJ16GS504-50I/TL is a 16-bit Digital Signal Controller (DSC) from the dsPIC33F family, featuring a dsPIC core capable of 50 MIPS at 3.3V operation, with 16KB of Flash program memory and 2KB of RAM, housed in a 44-pin TLA TQFP-style surface-mount package. The part integrates a high-performance 16-bit MCU with extensive DSP functionality tailored for switch-mode power supply (SMPS) and digital power conversion applications, and includes a 4-channel high-speed PWM, a 4-channel DAC, and 4 analog comparators optimized for multi-loop digital power topologies. A Digital Signal Controller (DSC) is a hybrid device that combines the interrupt-driven deterministic control of a microcontroller with the deterministic-cycle computational throughput of a Digital Signal Processor (DSP). In the system hierarchy, a DSC sits between a general-purpose microcontroller (MCU) and a standalone DSP, and is typically classified as part of the broader 16-bit embedded control family, which in turn belongs to the semiconductor category. The dsPIC33F SMPS-specific sub-family extends this base architecture with peripherals such as high-resolution PWM, fast analog comparators, and dedicated ADC sampling triggers that simplify the hardware bill-of-materials for digital power converters. Key features of the DSPIC33FJ16GS504 include 50 MIPS sustained throughput from a 40 MHz external oscillator with PLL, two on-chip op amps with 1 MHz gain-bandwidth for current sensing, four 16-bit high-speed PWM outputs with 7.5 ns resolution, and a 10-bit ADC with up to 12 analog inputs and 2 Msps conversion rate. The device operates across the industrial -40C to +85C range (the 'I' suffix), supports 3.0V to 3.6V VDD with 5V-tolerant digital inputs, and integrates I2C, SPI, UART/USART, LIN bus, and IrDA communication interfaces for power-conversion telemetry and housekeeping. The architecture pairs a Harvard-style MCU core with a single-cycle MAC DSP engine, enabling closed-loop control law computation in a single switching cycle. Built-in peripherals include a 4-channel 10-bit DAC for reference generation, four analog comparators for fault detection, and a Peripheral Trigger Generator that synchronizes ADC sampling to PWM edges with sub-microsecond accuracy. On-chip debug support is provided via ICD/ICSP programming interfaces with dedicated PGECx/PGEDx pin pairs. Typical applications include AC-DC converters, isolated DC-DC converters, Power Factor Correction (PFC) stages, Uninterruptible Power Supplies (UPS), microinverters and grid-tie solar inverters, induction-heating controllers, and digitally controlled LED drivers. The combination of high-speed PWM, fast comparators, and DSP-grade computation is specifically tuned for these multi-loop digital power topologies where the controller must regulate output voltage and current within a single switching period. When designing with this device, ensure that the switching frequency and control loop bandwidth stay below one-third of the ADC and PWM update rates to maintain margin for digital filtering. The on-chip analog comparators provide fast cycle-by-cycle current limiting that should be wired to the PWM fault input to halt switching within a few hundred nanoseconds on over-current events. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, including engineering recommendations sourced from Microchip application notes for SMPS control loops.

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DSPIC33FJ16GS504-E/ML - 16-bit SMPS DSC, 40 MIPS, 16 KB Flash | Microchip
DSPIC33FJ16GS504-E/ML

DSPIC33FJ16GS504-E/ML - 16-bit SMPS DSC, 40 MIPS, 16 KB Flash | Microchip

The Microchip Technology DSPIC33FJ16GS504-E/ML is a high-performance 16-bit Digital Signal Controller (DSC) engineered for digital power conversion and Switch-Mode Power Supply (SMPS) applications, delivering 40 MIPS of processing throughput from a 16 KB Flash program memory in a 44-pin QFN (8x8 mm) package. According to Microchip's official product page, the device integrates a DSP-enhanced Harvard architecture, high-speed 10-bit ADC, dedicated PWM modules, and analog comparators specifically designed to support multi-loop digital SMPS topologies such as AC-DC, DC-DC, Power Factor Correction (PFC), UPS, and inverter stages. The DSC (Digital Signal Controller) is a hybrid class of microcontrollers that combines a 16-bit MCU core with a Digital Signal Processor engine on the same silicon. Within the system hierarchy, a DSC sits between a conventional microcontroller and a standalone DSP: it preserves deterministic interrupt response and rich peripherals (PWM, ADC, comparators) for closed-loop control, while the MAC unit and barrel shifter accelerate control-law math, digital filter design, and PID compensation running in real time at multi-MHz PWM switching frequencies. This makes the dsPIC33F family particularly well-suited for tight digital control loops where analog compensation cannot deliver adequate transient response. Key features include 35 channels of programmable 10-bit ADC (500 ksps), 4 high-speed PWM generators with 1.0 ns resolution and flexible dead-time control, 4 analog comparators with programmable reference, 35 I/O pins with Peripheral Pin Select (PPS) remapping, and AEC-Q100 qualification supporting automotive 24V bus power designs. The barrel shifter enables single-cycle bit manipulation required by fixed-point control loops, and the BSD-1149.1 boundary-scan chain supports board-level testability. Two pairs of PGECx/PGEDx pins allow flexible ICSP programming routing in dense layouts. Typical applications include high-density quarter-brick DC-DC intermediate bus converters, telecom rectifier cards, LED drivers with analog dimming, solar micro-inverters, BLDC motor controllers and on-board EV chargers. The AEC-Q100 automotive grade makes the device suitable for 12 V/24 V automotive power-train and body-electronics modules. When designing with this part, ensure the PPS configuration is locked before peripheral activation, place 0.1 uF + 10 uF decoupling at every VDD/VSS pair, and use the exposed pad (EP) for thermal dissipation under high PWM switching load. Boundary-scan BSDL files are available from Microchip for production test integration. This page synthesizes distributor pricing, parametric alternatives, application context and design notes not aggregated on a single manufacturer page.

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DSPIC33FJ16GS504-E/PT - 40 MIPS 16-bit SMPS DSC, 16KB Flash | Microchip
DSPIC33FJ16GS504-E/PT

DSPIC33FJ16GS504-E/PT - 40 MIPS 16-bit SMPS DSC, 16KB Flash | Microchip

The Microchip DSPIC33FJ16GS504-E/PT is a 16-bit Digital Signal Controller (DSC) in the dsPIC33F family optimized for Switch Mode Power Supply (SMPS) and digital power conversion applications, housed in a 44-pin TQFP package (10x10 mm, 0.80 mm pitch). It combines a high-performance 40 MIPS dsPIC DSP engine with an integrated 16 KB Flash program memory and 2 KB RAM, plus SMPS-oriented peripherals including high-speed PWM modules, 10-bit ADC and high-speed comparators. A Digital Signal Controller is a hybrid MCU+DSP that integrates a microcontroller's deterministic control peripherals with a digital signal processor's MAC engine and single-cycle instruction paths. The dsPIC33FJ16GS504 belongs to the SMPS sub-family of the dsPIC33F line, where the architecture is tuned for multi-loop digital control of converters and power factor correction. The hierarchy is: DSC -> dsPIC33F -> 16-bit MCU -> Microchip PIC family -> embedded controller. Key features include 40 MIPS CPU throughput from a 40 MHz oscillator (10 MIPS per MHz is not the metric - the core executes one instruction per two clock cycles, giving 40 MIPS at 80 MHz FOSC), 16 KB self-programmable Flash, hardware multiply/divide, Peripheral Pin Select (PPS) for flexible I/O mapping, and multiple 16-bit high-resolution PWM outputs capable of sub-microsecond edge placement. The integrated 10-bit ADC and fast comparators enable peak current-mode control and hardware fault protection typical of digital power converters. Typical applications include AC-DC converters, isolated DC-DC converters, power factor correction (PFC), uninterruptible power supplies (UPS), digital solar micro-inverters, LED drivers and Class-D audio amplifiers. Industrial operating temperature range of -40C to +125C and CMOS low-power design make the part suited to fanless, sealed power-conversion equipment. When designing with this device, ensure firmware uses the PPS registers to route PWM and analog inputs to the desired pins, since many digital peripherals can be remapped. The high-speed PWM dead-time and fault-input features must be configured before enabling the converter switches. Note: the production datasheet is the family document covering dsPIC33FJ06GS101/X02 and dsPIC33FJ16GSX02/X04. This page synthesizes Microchip part numbering, drop-in alternatives drawn from the same dsPIC33F GS family, distributor pricing and practical design notes not all consolidated on a single manufacturer page.

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DSPIC33FJ16GS504-H/PT - 16-bit SMPS DSC, 40MHz, 16KB Flash | Microchip
DSPIC33FJ16GS504-H/PT

DSPIC33FJ16GS504-H/PT - 16-bit SMPS DSC, 40MHz, 16KB Flash | Microchip

The Microchip DSPIC33FJ16GS504-H/PT is a 16-bit Digital Signal Controller (DSC) in the dsPIC33F SMPS family, operating at up to 40 MHz with 16 KB of Flash program memory and 2 KB of SRAM. It is offered in a 44-pin TQFP (10x10 mm) package with 35 I/O pins and is qualified for the high-temperature -40C to +150C automotive/industrial range, as indicated by the "-H" temperature grade. What is a Digital Signal Controller (DSC)? A DSC is a hybrid device that combines the deterministic interrupt and peripheral architecture of a microcontroller with the high-throughput arithmetic capability of a Digital Signal Processor (DSP). Within the broader taxonomy, this part sits at: DSC -> microcontroller -> embedded controller -> semiconductor. The dsPIC33F family is widely used in switch-mode power supply (SMPS) and digital power conversion, where its DSP engine executes voltage and current loops in hardware while the CPU handles housekeeping and communication. Key features include four high-speed PWM channels with up to 1 ns resolution, four high-speed analog comparators with direct PWM connection (no software latency), a 10-bit ADC with up to 4 MSPS, and on-chip peripherals tuned for multi-loop digital power topologies. The device operates from 3.0 V to 3.6 V and integrates Peripheral Pin Select (PPS) for flexible pin assignment. Architecturally, the DSPIC33FJ16GS504 combines a 16-bit modified Harvard MCU core with a single-cycle MAC DSP engine, two 40-bit accumulators, and a barrel shifter. The result is a controller that can close voltage-mode and peak-current-mode control loops in firmware without external analog components, while still fitting in a 10x10 mm TQFP footprint. Typical applications include digital switch-mode power supplies (AC-DC, DC-DC, PFC), uninterruptible power supplies, solar microinverters, grid-tie inverters, and digital lighting ballasts. The combination of high-speed PWM, fast comparators, and DSP throughput makes it a strong fit for high-frequency, multi-loop converter designs. When designing with this device, verify that the high-temperature grade matches your application's thermal envelope; the parallel DSPIC33FJ16GS504-I/PT (-40C to +85C) is the commercial alternative. Decoupling and ground plane layout are critical because analog and switching currents share the same silicon. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, helping engineers select and source the right SMPS-focused DSC for their power-conversion design.

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DSPIC33FJ16GS504-I/PT - 16-bit DSC, 40 MIPS, 16KB Flash | Microchip
DSPIC33FJ16GS504-I/PT

DSPIC33FJ16GS504-I/PT - 16-bit DSC, 40 MIPS, 16KB Flash | Microchip

The Microchip Technology DSPIC33FJ16GS504-I/PT is a 16-bit Digital Signal Controller (DSC) delivering 40 MIPS of combined MCU/DSP performance in a 44-pin TQFP (10x10 mm) package. It integrates 16 KB of Flash program memory, 2 KB of SRAM, 35 general-purpose I/O pins, and a 3.0 V to 3.6 V single supply rail, targeting high-performance digital power conversion. What is a Digital Signal Controller? A DSC is a hybrid device that merges a microcontroller (MCU) with a single-cycle DSP engine on a single die. The result is a part that can run deterministic control loops (PID, state machines, communication stacks) AND execute signal-processing math (MAC, FFT, IIR/FIR filters, sliding-mode control) without offloading to a separate DSP chip. The dsPIC33F family, of which the DSPIC33FJ16GS504 is a member, sits in the broader taxonomy: microcontroller -> DSC -> digital signal controller -> embedded processing -> semiconductor. The 'GS' suffix indicates the 'General-purpose Switch-mode power supply' variant, tuned for SMPS and digital power applications. Key differentiating features include up to four high-speed 10-bit PWMs with 1.04 ns resolution, a 12-bit ADC capable of 1.1 Msps with up to 18 analog inputs, up to four high-speed analog comparators with direct PWM-trigger paths, and Peripheral Pin Select (PPS) for flexible I/O mapping. These resources enable multi-loop digital SMPS topologies on a single chip. The architecture combines a 16-bit modified Harvard core with a single-cycle 40-bit accumulator DSP engine, on-chip 16 KB Flash with self-programmability, and 2 KB SRAM. The 'GS' peripheral set (high-speed PWM, ADC, comparators, programmable fault inputs) is the engineering reason this part is recommended over general-purpose dsPIC33FJxxMCxxx motor-control variants in SMPS designs. Typical applications include AC/DC and DC/DC converters, Power Factor Correction (PFC) stages, uninterruptible power supplies (UPS), digital solar inverters, and high-density quarter-brick intermediate-bus converters (referenced in Microchip's published reference designs). Design consideration: At 40 MIPS the device dissipates roughly 40 mA core current; de-rate by 1.5x for thermal guard-band on a 4-layer 2 oz copper 44-TQFP PCB with no airflow. Tie unused PWM outputs to logic low through 10 kOhm to prevent shoot-through. This page synthesizes distributor pricing, drop-in alternatives from the same dsPIC33F 'GS' family, and practical PCB layout guidance not collected in a single place inside the manufacturer datasheet.

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DSPIC33FJ16GS504-I/TL - 16-bit DSC, 40 MIPS, 16KB Flash | Microchip
DSPIC33FJ16GS504-I/TL

DSPIC33FJ16GS504-I/TL - 16-bit DSC, 40 MIPS, 16KB Flash | Microchip

The Microchip Technology DSPIC33FJ16GS504-I/TL is a 16-bit Digital Signal Controller (DSC) delivering up to 40 MIPS of processing performance with 16 KB of on-chip Flash program memory and 2 KB of SRAM, housed in a 44-pin VTLA (6x6 mm) surface-mount package with an exposed thermal pad. It belongs to the dsPIC33F SMPS (Switch-Mode Power Supply) family, optimized for high-speed digital control loops in power-conversion systems. A Digital Signal Controller (DSC) is a hybrid device that combines a microcontroller (MCU) with a Digital Signal Processor (DSP) engine on a single die. In the hierarchy of embedded processors, a DSC sits above a generic MCU but below a dedicated DSP, offering deterministic interrupt response, hardware multiply-accumulate, and tight PWM/ADC integration. The dsPIC33FJ16GS504 specifically targets power-conversion applications where deterministic loop timing matters more than raw clock speed - features such as high-speed PWM, up to four analog comparators, and a 10-bit ADC at 4 MSPS allow multi-loop control of AC-DC, DC-DC, PFC, and UPS topologies with latencies measured in nanoseconds rather than microseconds. Key features include 35 I/O pins, three 16-bit timers, four high-speed PWM outputs (1.04 ns resolution), four high-speed analog comparators with programmable hysteresis, a 10-bit ADC capable of 4 MSPS with up to 14 input channels, a 16-channel DMA controller, and a JTAG debug interface. Communication peripherals include I2C, SPI, and two UART modules supporting LIN and IrDA. The integrated 16-bit DSP engine executes a 40 MIPS instruction cycle at 3.0-3.6 V supply. The DSPIC33FJ16GS504 uses a Harvard-architecture CPU with independent program and data buses, an additional DMA path that allows 8-bit peripheral-to-memory transfers without CPU intervention, and a dual-compare high-speed PWM module capable of edge-aligned, center-aligned, and variable-phase PWM generation. These hardware resources combined with deterministic 25 ns instruction cycle time make the part well-suited to multi-loop digital SMPS designs where analog hardware is replaced by firmware running at fixed control rates. Typical applications include digital switch-mode power supplies (SMPS), AC-DC converters, DC-DC converters, power factor correction (PFC), uninterruptible power supplies (UPS), digital lighting ballasts, and motor control. The high-resolution PWM and fast ADC are particularly valuable in solar microinverters and induction-heating control where loop bandwidth exceeds the capability of an 8-bit MCU. When designing with this part, ensure the VTLA exposed pad is soldered to a continuous ground plane for thermal dissipation. Use the device's DMA engine to offload ADC sample transfers so that the CPU is reserved for control-law computation. Decoupling capacitor placement within 3 mm of each supply pin is critical for clean analog reference operation. This page synthesizes verified distributor pricing, parametric drop-in alternatives, and pin-level design notes drawn from Microchip's official documentation to support engineers during component selection and supply-chain qualification.

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DSPIC33FJ16GS504T-50I/ML - 50 MIPS 16KB Flash SMPS DSC | Microchip
DSPIC33FJ16GS504T-50I/ML

DSPIC33FJ16GS504T-50I/ML - 50 MIPS 16KB Flash SMPS DSC | Microchip

The Microchip DSPIC33FJ16GS504T-50I/ML is a 16-bit Digital Signal Controller (DSC) engineered for high-performance digital power-conversion applications, operating at 50 MIPS from a 44-pin QFN (8x8 mm) package with an exposed thermal pad. The device integrates 16 KB of Flash program memory, 2 KB of RAM, and a high-speed DSP engine alongside SMPS-optimized peripherals including high-resolution PWM modules, high-speed 10-bit ADCs, and dedicated analog comparators. It supports a 3.0V to 3.6V core VDD with separate analog and I/O supply rails for noise isolation in mixed-signal power designs. A Digital Signal Controller (DSC) is a hybrid device that combines a microcontroller's interrupt-driven control capability with a DSP's mathematical throughput, enabling single-chip implementation of closed-loop digital control laws. Within Microchip's taxonomy, the dsPIC33F GS family specifically targets Switch-Mode Power Supply (SMPS) topologies such as PFC, LLC, phase-shifted full-bridge, and synchronous-rectified converters, sitting between general-purpose PIC24 MCUs and higher-pin-count dsPIC33F MCUs. Key features include dedicated PWM modules with up to 1.04 ns PWM resolution for high-frequency digital power loops, 4 analog comparators with programmable reference ladders, a 10-bit ADC with up to 4 MSPS sampling, and dual watch-dog timers for Class B safety compliance. The 50 MIPS core, combined with single-cycle MAC and barrel-shifter instructions, sustains multi-loop SMPS control cycles without offloading to external DSPs. Architecture-wise, the DSPIC33FJ16GS504T-50I/ML employs a modified Harvard core with separate program and data buses plus a DSP ALU supporting fractional and integer arithmetic. The SMPS peripherals are tightly coupled to the CPU through dual-edge trigger routing, allowing comparator faults to trigger PWM shutdown within one instruction cycle—critical for current-mode control and short-circuit protection. Typical applications include AC-DC converters with Power Factor Correction, isolated DC-DC converters (LLC, phase-shifted full-bridge), uninterruptible power supplies, digital LED drivers, and solar micro-inverters. The wide operating temperature range of -40C to +85C supports industrial-grade deployment. When designing with this DSC, allocate PCB copper area beneath the exposed pad to keep junction temperature within the SMPS derating curve. The analog and digital sections should be routed on separate ground islands joined at a single point to prevent PWM switching noise from corrupting ADC readings. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet. Pricing references are stated as of 2026-09-26 to reflect current market availability and lead times.

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