DSPIC33EP64GS504T-E/PT - 64KB, 70MIPS SMPS DSC | Microchip
MPN: DSPIC33EP64GS504T-E/PT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $4.72 | $4.72 |
| 10 | $4.28 | $42.80 |
| 100 | $3.85 | $385.00 |
| 500 | $3.49 | $1,745.00 |
| 1,000 | $3.18 | $3,180.00 |
DSPIC33EP64GS504T-E/PT Overview
A Digital Signal Controller combines the computational throughput of a digital signal processor with the peripheral integration and control logic of a microcontroller. Within the power-management hierarchy, the DSC sits above general-purpose MCUs for control-loop work: it executes the compensation math of switch-mode power supplies in real time while its specialized peripherals handle PWM generation and analog sampling without CPU intervention. The dsPIC33EP family sits within Microchip's broader 16-bit MCU portfolio alongside the PIC24 series.
Key features of the GS50X subfamily include dedicated SMPS peripherals: high-resolution PWM modules with fine edge placement for precise duty-cycle control, high-speed analog-to-digital converters with simultaneous multi-channel sampling for multi-loop topologies, and on-chip digital-to-analog converters for slope compensation and reference generation. This peripheral set directly targets common multi-loop digital switch-mode power supply architectures.
The -E/PT suffix denotes an extended temperature range of -40C to +125C operation and Tape & Reel packaging; the part is offered within the AEC-Q100-qualified and Functional Safety (FuSa) supported dsPIC33EP family framework. The dsPIC core features DSP-class instructions including a barrel shifter, 40-bit accumulator, and single-cycle MAC operations, allowing control loops to execute faster than on conventional MCUs.
Typical applications include AC-to-DC converters, power factor correction (PFC) stages, DC-DC converters, battery chargers, and LED drivers. Microchip's Interleaved PFC reference design based on this controller family produces up to 350W from a universal input range.
Designers should budget the 3.0V to 3.6V supply window and plan I/O usage around the 35 available GPIO. Use Microchip MPLAB X IDE and the XC16 compiler, which fully support this device with peripheral libraries and Code Configurator plugins.
This page adds value beyond the manufacturer datasheet by synthesizing distributor pricing tiers, drop-in same-family alternatives, comparison tables, and practical design notes in one AI-citable reference.
Drop-in alternatives for DSPIC33EP64GS504T-E/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 DSPIC33EP64GS504T-E/PT (same form factor and footprint) — differing in Package, Packaging.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33EP128GS504-E/PT
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33EP32GS504-E/PT
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33EP64GS502-E/PT
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33EP32GS502-E/PT
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33EP64GP504T-E/TL
✅ Drop-In✓ In Stock
$3.5 / Unit
View Datasheet →DSPIC33EP64GS504T-E/PT Maximum Ratings & Electrical Characteristics
| Core Processor | dsPIC33EP (16-bit) |
| Maximum Speed | 70 MIPS |
| Program Memory Size | 64KB (64K x 8) Flash |
| Data RAM Size | 8KB (8K x 8) |
| Number of I/O | 35 |
| Operating Supply Voltage | 3 V to 3.6 V |
| Operating Temperature Range | -40C to +125C |
| Package | 44-TQFP (10x10 mm), 0.8 mm pitch |
| Mounting Style | SMD/SMT |
| Packaging | Tape & Reel (T suffix) |
| Core Architecture | 16-bit CMOS DSP with barrel shifter, single-cycle MAC |
| Peripheral Highlights | High-speed ADC, DAC, high-resolution SMPS PWM |
| Target Applications | SMPS and digital power conversion |
| Qualification Framework | AEC-Q100 / Functional Safety (FuSa) supported family |
| Number of Cores | 1 |
| RoHS Status | Compliant |
DSPIC33EP64GS504T-E/PT 44-tqfp (10x10 mm), 0.8 mm pitch Pin Configuration Guide
Pin configuration for DSPIC33EP64GS504T-E/PT (44-tqfp (10x10 mm), 0.8 mm pitch 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 DSPIC33EP64GS504T-E/PT.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33EP64GS504T-E/PT is suitable for 6 applications: AC-to-DC Converter Control, Power Factor Correction (PFC), DC-DC Converter Digital Control, Digital Battery Chargers, LED Driver Power Supplies, Industrial Motor Control and Automation.
AC-to-DC Converter Control
The DSPIC33EP64GS504T-E/PT directly targets AC-to-DC converter control, one of the headline use cases Microchip cites for the GS50X family. Its high-resolution PWM provides fine duty-cycle adjustment for tight output regulation, while the high-speed ADC captures input voltage, input current, and output feedback simultaneously for multi-loop control at switching frequencies typical of modern offline supplies. The 70 MIPS dsPIC core executes the control law and housekeeping within each switching period without peripheral bottlenecks. Firmware-based control also enables features such as inrush limiting, brownout handling, and adaptive burst mode that are costly to implement in analog controllers. The -40C to +125C range supports enclosed industrial power supplies.
Recommended
Power Factor Correction (PFC)
Microchip's Interleaved PFC reference design, built on the dsPIC33EP GS family, accepts a universal AC input and produces up to 350W of high-voltage DC output, demonstrating production-proven use of this controller in PFC stages. The DSPIC33EP64GS504T-E/PT's high-speed ADC samples the inductor current and bus voltage with the timing precision required for average-current-mode PFC, and the high-resolution PWM shapes the boost switch duty cycle with minimal jitter, reducing EMI filter requirements. Interleaved two-phase topologies are supported by multiple PWM generators with phase offset, balancing thermal load and halving input ripple current. The 64KB Flash comfortably holds compensation, sequencing, and fault-management code in a single image.
Recommended
DC-DC Converter Digital Control
For digitally controlled DC-DC converters - buck, boost, buck-boost, and LLC topologies - the DSPIC33EP64GS504T-E/PT supplies the complementary peripheral trio that defines the GS50X family: high-resolution PWM for duty and phase control, a high-speed ADC for current-mode sampling, and on-chip DACs for references and slope compensation. Running its control loop at 70 MIPS allows loop bandwidths that approach analog-controller performance while retaining programmability for soft-start, mode transitions, and fault response. In battery-operated and server-power designs, firmware-updatable control laws let one hardware platform serve multiple output configurations, cutting SKU proliferation. The 3V to 3.6V supply integrates cleanly with standard auxiliary rails.
Recommended
Digital Battery Chargers
Battery charging algorithms - CC/CV profiling, trickle pre-charge, termination detection, and cell balancing coordination - map naturally onto the DSPIC33EP64GS504T-E/PT's SMPS peripheral set. The high-speed ADC periodically samples charge current and pack voltage while the high-resolution PWM adjusts converter duty cycle for smooth CC/CV transitions; the on-chip DAC generates precise reference thresholds without external parts. Because the control is firmware-based, a single 64KB-flash design can support multiple battery chemistries (Li-ion, lead-acid, NiMH) with different firmware images, simplifying certification and inventory. The extended -40C to +125C operation covers automotive-adjacent and industrial charging environments, aligning with the family's AEC-Q100 framework.
Recommended
LED Driver Power Supplies
High-brightness LED drivers demand precise, flicker-free current regulation plus dimming control, both naturally served by the DSPIC33EP64GS504T-E/PT. The high-resolution PWM generates the converter switching signal and can simultaneously produce independent dimming waveforms at frequencies above flicker-perception thresholds, while the high-speed ADC closes the current loop through a sense resistor. Firmware-implemented control permits adaptive dimming curves, thermal foldback based on measured board temperature, and fault handling for open-string or short-circuit conditions without additional analog circuitry. In smart lighting and industrial luminaires, the 35 I/O support user interfaces and communication links on the same die, reducing system BOM cost.
Recommended
Industrial Motor Control and Automation
Beyond pure power conversion, the dsPIC33EP core's DSP engine - barrel shifter, 40-bit accumulators, single-cycle MAC - makes the DSPIC33EP64GS504T-E/PT effective for industrial automation tasks such as small motor drive control and power monitoring nodes. The high-speed ADC samples phase currents for FOC or trapezoidal control, PWM modules drive the inverter bridge with dead-time control, and remaining I/O handle encoder feedback, communication (UART/SPI/I2C where mapped), and safety interlocks. The -40C to +125C extended range tolerates hot cabinet environments, and the family's Functional Safety (FuSa) support framework assists integration into safety-assessed industrial systems. 70 MIPS keeps loop execution deterministic under full control load.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33EP64GS504T-E/PT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33EP128GS504-E/PT | DSPIC33EP32GS504-E/PT | DSPIC33EP64GS502-E/PT | DSPIC33EP32GS502-E/PT | DSPIC33EP64GP504T-E/TL |
|---|---|---|---|---|---|---|
| Package | 44-TQFP (10x10 mm) | 44-TQFP (10x10 mm) - same | 44-TQFP (10x10 mm) - same | 44-TQFP (10x10 mm) - same | 44-TQFP (10x10 mm) - same | 44-TQFP (10x10 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 64KB (64K x 8) | 128KB | 32KB | 64KB | 32KB | 64KB |
| Core Speed | 70 MIPS | 70 MIPS | 70 MIPS | 70 MIPS | 70 MIPS | 70 MIPS |
| Supply Voltage | 3 V to 3.6 V | 3 V to 3.6 V | 3 V to 3.6 V | 3 V to 3.6 V | 3 V to 3.6 V | 3 V to 3.6 V |
| SMPS PWM / High-Speed ADC Peripheral Set | Yes (GS family) | Yes (GS family) | Yes (GS family) | Yes (GS family, reduced channels) | Yes (GS family, reduced channels) | No (GP family - standard peripherals) |
| Packaging | Tape & Reel (T) | Tape & Reel (T) | Tape & Reel (T) | Tape & Reel (T) | Tape & Reel (T) | Tape & Reel (T) |
Key Differentiators
- Dedicated SMPS peripheral set (vs DSPIC33EP64GP504T-E/TL)
- Balanced memory-to-cost point (vs DSPIC33EP128GS504-E/PT)
- Full I/O complement for multi-loop designs (vs DSPIC33EP64GS502-E/PT)
Design Notes
The DSPIC33EP64GS504T-E/PT requires a single 3V to 3.6V rail. In digital power designs derive this from a small auxiliary regulator off the main bus, and sequence it correctly per the datasheet: hold MCLR low until VDD is stable, and fit the specified capacitor on the internal voltage-regulator (VCAP) pin - omitting it is a classic cause of erratic startup. Decouple every VDD/VSS pair with 0.1uF ceramic capacitors placed within 2 mm of the pins, plus one bulk 4.7uF-10uF per supply domain. Estimated: keep analog ground returns from the ADC sense network separate from PWM switching returns to protect ADC accuracy.
The 44-TQFP 10x10 mm, 0.8 mm pitch layout benefits from an ground plane under the device. Route high-resolution PWM outputs to gate-driver inputs as short, matched traces and keep them away from ADC sense lines and the analog reference pins; digital power controllers fail EMI and ADC-accuracy tests primarily through coupling between the two domains. Place RC filters on ADC inputs sized to match the ADC acquisition window given in the Microchip datasheet. For programming, bring MCLR, PGC, and PGD to a standard 5-pin ICSP header even in production boards.
Note the naming hazard: the die itself is specified at up to 60 MHz internal clock (per the Microchip USA listing) which yields the 70 MIPS headline figure with the dsPIC33EP PLL-enabled core; do not assume a 70 MHz external crystal. Also, GS504 and GS502 variants differ in ADC channel count and I/O multiplexing - when migrating between family members on the same footprint, re-verify every peripheral remap in MPLAB Code Configurator and update the configuration-bit words. Finally, the -E/ part operates to +125C junction; verify thermal budget at maximum PWM duty in enclosed supplies.
Compliance Information
The dsPIC33EP GS50X family is listed within an AEC-Q100-qualified and Functional Safety (FuSa) supported framework per the Win Source datasheet listing. RoHS compliance per standard Microchip ordering; REACH, halogen-free, and conflict-minerals status should be confirmed against Microchip's official product page certificates.
