DSPIC33EP512GP502T-E/MM - 16-bit DSC 512KB Flash 60 MIPS | Microchip
MPN: DSPIC33EP512GP502T-E/MM ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $6.12 | $6.12 |
| 10 | $5.55 | $55.50 |
| 100 | $4.98 | $498.00 |
| 500 | $4.46 | $2,230.00 |
| 1,000 | $3.92 | $3,920.00 |
DSPIC33EP512GP502T-E/MM Overview
A digital signal controller combines the deterministic control structure of a microcontroller with the math acceleration of a DSP engine. Within the power-management hierarchy, the DSC sits between a general-purpose MCU and a dedicated DSP: it executes single-cycle MAC and 40-bit accumulate instructions for filtering and control loops, while retaining interrupt-driven peripherals, watchdog timers and flash self-programming typical of PIC microcontrollers. The dsPIC33EP family is Microchip's E-core generation, superseding the dsPIC33F with higher speed and richer analog integration.
Key features include CAN 2.0B, I2C, SPI, UART/IrDA and LINbus connectivity, high-speed PWM modules for motor control and power conversion, up to two on-chip operational amplifiers, three analog comparators, a Charge Time Measurement Unit (CTMU) for capacitive touch and precise timing, and a Peripheral Trigger Generator (PTG) for autonomous task scheduling that offloads the CPU.
Architecturally, the dsPIC33EP core pairs a 16-bit MCU pipeline with a DSP engine supporting 32-bit multiply, fractional and integer arithmetic, and dual operand fetch, plus DMA channels that move ADC and communication data without CPU intervention. The superior ADC performance of this family suits high-bandwidth closed-loop control in digital power supplies and sensor conditioning.
Typical applications include digital power supplies and battery chargers using the hi-speed PWM, brushless DC and PMSM motor drives, and industrial nodes requiring CAN bus networking with DSP filtering on sensor inputs.
Design-wise, reserve the FLASH programming budget carefully - the 512 KB density allows table-driven FOC algorithms, but ECC-style flash endurance still favors logging in external EEPROM; also confirm QFN thermal pad soldering for extended temperature operation.
This page synthesizes distributor pricing, drop-in family alternatives, and practical design notes not found in the manufacturer datasheet.
Drop-in alternatives for DSPIC33EP512GP502T-E/MM — 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 DSPIC33EP512GP502T-E/MM (same form factor and footprint) — differing in Package, Operating Temperature, Core, Series, Timers.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33EP512GP502T-I/MM
✅ Drop-In✓ In Stock
$3.25 / Unit
View Datasheet →DSPIC33EP32GP502T-E/MM
✅ Drop-In✓ In Stock
$2.98 / Unit
View Datasheet →DSPIC33EP256GP502T-E/MM
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$3.55 / Unit
View Datasheet →DSPIC33EP128GP502T-E/MM
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$3.36 / Unit
View Datasheet →DSPIC33EP64GP502T-E/MM
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33EP512GP502T-E/MM Maximum Ratings & Electrical Characteristics
| Core | dsPIC33EP 16-bit DSC |
| CPU Speed | 60 MIPS |
| Program Memory Size | 512 KB (170K x 24) FLASH |
| RAM Size | 48 KB |
| Data Bus Width | 16 bit |
| Connectivity | CANbus, I2C, IrDA, LINbus, SPI, UART/USART |
| Package | 28-QFN-S (6x6 mm) |
| Operating Temperature | -40C to +125C (Extended, E grade) |
| Supply Voltage | 3.0 V to 3.6 V |
| Mounting Type | Surface Mount |
| Timers | Multiple 16-bit timers incl. T1CK, T2CK |
| PWM | High-Speed PWM modules |
| Analog Peripherals | Op Amps (2), Comparators (3), CTMU |
| Special Peripherals | Peripheral Trigger Generator (PTG), DMA |
| Packaging | Tape & Reel (T suffix) |
| RoHS Status | Compliant |
| Watchdog Timer | Yes |
DSPIC33EP512GP502T-E/MM Pin Configuration
| Pin 1 | MCLR — Master clear reset input / programming voltage |
| Pin 2 | AN0/VREF+/CN3/RB0 — Analog input 0 / positive voltage reference / port B0 |
| Pin 3 | AN1/VREF-/CN2/RB1 — Analog input 1 / negative voltage reference / port B1 |
| Pin 4 | AN2/SS1/CN4/RB2 — Analog input 2 / SPI slave select 1 / port B2 |
| Pin 5 | AN3/IND1/CN5/RB3 — Analog input 3 / comparator input / port B3 |
| Pin 6 | PGD1/AN4/C1IN-/RP32/CN6/RB4 — ICSP data 1 / analog 4 / comparator input / port B4 |
| Pin 7 | PGC1/AN5/C1IN+/RP33/CN7/RB5 — ICSP clock 1 / analog 5 / comparator input / port B5 |
| Pin 8 | VDD — Power supply (3.0 V to 3.6 V) |
| Pin 9 | VSS — Ground reference |
| Pin 10 | OSC1/CLKI/RC12 — External oscillator / clock input |
| Pin 11 | OSC2/CLKO/RC15 — Oscillator output / clock output |
| Pin 12 | PGD3/RP39/RF3 — ICSP data 3 / remappable peripheral pin / port F3 |
| Pin 13 | PGC3/RP40/RF2 — ICSP clock 3 / remappable peripheral pin / port F2 |
| Pin 14 | VDD — Power supply |
| Pin 15 | RP47/RF13 — Remappable peripheral pin (T2CK) / port F13 |
| Pin 16 | RP48/RF12 — Remappable peripheral pin (T1CK) / port F12 |
| Pin 17 | VSS — Ground reference |
| Pin 18 | RF4 — General purpose / remappable I/O |
| Pin 19 | RF5 — General purpose / remappable I/O |
| Pin 20 | VDD — Power supply |
| Pin 21 | PGD2/RF0 — ICSP data 2 / port F0 |
| Pin 22 | PGC2/RF1 — ICSP clock 2 / port F1 |
| Pin 23 | RB14 — General purpose I/O / change notification |
| Pin 24 | RB13 — General purpose I/O / change notification |
| Pin 25 | RB12 — General purpose I/O / change notification |
| Pin 26 | RB11 — General purpose I/O / change notification |
| Pin 27 | RB10 — General purpose I/O / change notification |
| Pin 28 | VSS — Ground reference |
Typical Applications
DSPIC33EP512GP502T-E/MM is suitable for 6 applications: Digital Power Supplies and Battery Chargers, Brushless DC and PMSM Motor Drives, Industrial CAN Bus Networking Nodes, Capacitive Touch and CTMU-Based Sensing, Precision Sensor Signal Conditioning, Embedded Control and DSP Hybrid Systems.
Digital Power Supplies and Battery Chargers
The DSPIC33EP512GP502T-E/MM fits digital power conversion because its high-speed PWM modules provide complementary outputs with programmable dead-time and the 60 MIPS DSP core closes voltage and current loops with single-cycle MAC instructions. Typical implementations place the DSC between the feedback divider and the power stage gate drivers, running average-current-mode control at switching frequencies of hundreds of kilohertz with ADC sampling triggered directly by the PWM, eliminating CPU jitter. The three on-chip comparators implement hardware cycle-by-cycle over-current protection without software latency, a critical safety feature in converters handling high energy. The 512 KB FLASH accommodates extensive compensation tables, efficiency-optimization curves and firmware update reserves. Unlike analog controllers, this DSC allows gain scheduling and soft-start shaping entirely in firmware.
Recommended
Brushless DC and PMSM Motor Drives
This DSC is purpose-built for embedded motor control: the dsPIC33EP 60 MIPS core executes field-oriented control (FOC) loops with 32-bit multiply-accumulate in a single cycle, while the high-speed PWM generates six-phase complementary drive with dead-time insertion for three-phase inverters. Sensorless implementations use the on-chip op amps to amplify shunt currents into the ADC and the comparators for fast over-current trip, and the CTMU supports precise timing measurements for back-EMF zero-crossing detection. The 512 KB FLASH holds trajectory planners, FOC coefficient tables and communication stacks simultaneously. In a typical drive, the DSPIC33EP512GP502T-E/MM sits on the control board receiving hall or encoder feedback, outputting PWM through gate drivers, and reporting status over CAN or UART to a host controller.
Recommended
Industrial CAN Bus Networking Nodes
Industrial automation nodes benefit from this part's integrated CAN 2.0B controller, which eliminates an external CAN chip and reduces BOM cost and board area. The 60 MIPS DSP core simultaneously runs CAN message handling, sensor filtering and control tasks without a separate coprocessor, and DMA channels move CAN and ADC data autonomously, keeping interrupt latency low on heavily loaded buses. The Peripheral Trigger Generator (PTG) schedules repetitive acquisition sequences independent of the CPU, useful in deterministic polling architectures. Operating across -40C to +125C, the E-grade part suits motor control cabinets, pump stations and outdoor equipment where industrial-grade (85C) parts would be marginal. Combined with LINbus, I2C, SPI and UART peripherals, one chip can bridge a CAN backbone to local sensors and actuators.
Recommended
Capacitive Touch and CTMU-Based Sensing
The integrated Charge Time Measurement Unit (CTMU) makes the DSPIC33EP512GP502T-E/MM an efficient host for capacitive touch interfaces and precision time-of-flight or current measurements. The CTMU is a constant-current source paired with a high-resolution timer, allowing touch pad capacitance to be quantified by measuring charge time on user-defined channels; firmware filters with the 60 MIPS DSP engine suppress false triggers from moisture and EMI events. Because the measurement hardware is on-chip, no dedicated touch controller is needed, reducing cost in appliance and industrial HMI designs. The extended -40C to +125C rating keeps touch calibration stable in cooktop, oven and automotive-adjacent environments. The 512 KB FLASH provides room for tuning tables per key, proximity-detection algorithms and a communication interface to the main product controller.
Recommended
Precision Sensor Signal Conditioning
With up to two on-chip operational amplifiers and three analog comparators alongside the high-performance ADC, this DSC performs front-end signal conditioning and digitization on the same die as the processing core - a significant simplification for thermocouple, pressure-bridge and current-sense channels. The op amps buffer or amplify small sensor signals before ADC sampling, and the DSP core applies digital filtering (IIR/FIR with single-cycle MACs) to extract measurement values from noisy industrial environments. The CTMU adds precise excitation for resistive sensors. Operating from a 3.0 V to 3.6 V rail, the part integrates cleanly with 3.3 V analog front ends. The -40C to +125C extended range suits sensing modules mounted on engines, motors and outdoor enclosures, while CAN or UART delivers conditioned data to supervisory systems.
Recommended
Embedded Control and DSP Hybrid Systems
General embedded systems that need both MCU-style control and DSP math are a natural fit: the dsPIC33EP core executes interrupt-driven communication, state machines and housekeeping like any PIC microcontroller, while its DSP engine accelerates FFTs, digital filters and control algorithms where a plain 16-bit MCU would stall. The 512 KB FLASH and 48 KB RAM support RTOS kernels, protocol stacks and sizeable data buffers simultaneously, and DMA offloads ADC, UART and SPI streams from the CPU. Typical hybrid systems include audio analysis nodes, vibration monitors and smart power meters, where the PTG autonomously triggers periodic acquisition bursts. The compact 6x6 mm QFN-28 footprint lets this processing power fit into small sensor nodes, and the extended temperature rating covers harsh deployment environments.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33EP512GP502T-E/MM — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33EP512GP502T-I/MM | DSPIC33EP32GP502T-E/MM | DSPIC33EP256GP502T-E/MM | DSPIC33EP128GP502T-E/MM |
|---|---|---|---|---|---|
| Package | 28-QFN-S (6x6 mm) | 28-QFN-S (6x6 mm) - same | 28-QFN-S (6x6 mm) - same | 28-QFN-S (6x6 mm) - same | 28-QFN-S (6x6 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Memory (FLASH) | 512 KB (170K x 24) | 512 KB (170K x 24) | 32 KB | 256 KB | 128 KB |
| CPU Speed | 60 MIPS | 70 MIPS (per DigiKey listing) | 60 MIPS class | 60 MIPS class | 60 MIPS class |
| Operating Temperature | -40C to +125C (Extended, E) | -40C to +85C (Industrial, I) | -40C to +125C (Extended, E) | -40C to +125C (Extended, E) | -40C to +125C (Extended, E) |
| Connectivity | CAN, I2C, IrDA, LINbus, SPI, UART/USART | CAN, I2C, IrDA, LINbus, SPI, UART/USART | CAN, I2C, IrDA, LINbus, SPI, UART/USART | CAN, I2C, IrDA, LINbus, SPI, UART/USART | CAN, I2C, IrDA, LINbus, SPI, UART/USART |
| Analog Peripherals | Op Amps (2), Comparators (3), CTMU | Op Amps (2), Comparators (3), CTMU | Op Amps (2), Comparators (3), CTMU | Op Amps (2), Comparators (3), CTMU | Op Amps (2), Comparators (3), CTMU |
Key Differentiators
- Extended temperature range without package change (vs DSPIC33EP512GP502T-I/MM)
- Maximum code headroom in the GP502 family (vs DSPIC33EP256GP502T-E/MM)
- Integrated analog reduces external BOM (vs DSPIC33EP32GP502T-E/MM)
Design Notes
The 28-QFN-S (6x6 mm) package routes part of its ground and thermal path through the center exposed pad. Connect the pad to a solid VSS plane with an array of at least 3x3 vias; for the extended -40C to +125C E-grade operation this is especially important since junction-to-ambient margin is reduced at high ambient. Keep the decoupling capacitors (0.1 uF plus 10 uF on each VDD pin) within 2 mm of pins 8, 14 and 20, with a local via to the ground plane. Avoid routing high-dv/dt PWM traces directly under the QFN, since capacitive coupling into the analog pins 2-5 degrades ADC accuracy.
The dsPIC33EP core requires a regulated 3.0 V to 3.6 V supply. Estimated: dynamic core current scales with the CPU clock - when budgeting, derive current from the datasheet current-versus-frequency curve rather than a single figure, since a design toggling between 60 MIPS bursts and doze-mode idle can cut average current by an order of magnitude. Use the on-chip voltage regulator configuration fuses rather than an external core regulator, and add the recommended bulk and high-frequency decoupling around the VDDCAP/voltage-regulator pins per the family datasheet power section. brown-out and watchdog should both be enabled for extended-temperature operation where supply droop is more likely.
Three recurring mistakes with the GP502 28-pin parts: (1) forgetting that PGC1/PGD1 (pins 6-7) double as RB4/RB5 - designing these as button or LED pins complicates in-circuit serial programming, so keep ICSP access with series resistors. (2) Mapping peripheral pins blindly: this family uses Peripheral Pin Select (RPxx remapping), so verify the PPS map in the PPS section of the family reference manual before locking pin assignments for UART, SPI or PWM outputs. (3) Confusing temperature grades when sourcing - the -I variant is not a substitute above 85C ambient; check the suffix on incoming tape-and-reel labels to avoid assembly-line mixing.
Compliance Information
RoHS compliant and lead-free per distributor listings (DigiKey, Future Electronics, Microchip USA). Full REACH and conflict-minerals declarations must be obtained from the Microchip product page.
