DSPIC33EP64GP502-I/SP - 16-bit 70 MIPS DSC 64KB Flash | Microchip
MPN: DSPIC33EP64GP502-I/SP ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $5.42 | $5.42 |
| 10 | $4.95 | $49.50 |
| 100 | $4.38 | $438.00 |
| 500 | $3.96 | $1,980.00 |
| 1,000 | $3.55 | $3,550.00 |
DSPIC33EP64GP502-I/SP Overview
A digital signal controller combines the computational throughput of a DSP with the peripheral integration and deterministic interrupt structure of a microcontroller. Within Microchip's hierarchy, the dsPIC33EP64GP502 sits in the general purpose (GP) dsPIC33E family: a DSC is a superset of an MCU, adding a DSP engine, high-speed ADC, and advanced PWM for mixed signal-control workloads.
Key features include the 70 MIPS, 16-bit pipelined core with DSP instruction support, up to 512KB flash scalability across the family (64KB on this part), CAN2.0b communication, a Charge Time Measurement Unit (CTMU), and Peripheral Trigger Generator (PTG) for autonomous peripheral sequencing. The part operates from a single 3.0V to 3.6V supply and provides multiple general-purpose 16-bit timers and rich I/O.
Technical strengths center on superior ADC performance in this class and the high code density of the modified Harvard architecture, letting developers run closed-loop control plus communication stacks without external components. Advanced analog and high-speed PWM peripherals suit motor control and power conversion directly.
Typical applications include digital power supplies, brushless DC and PMSM motor control, industrial sensing and automation nodes, and general-purpose embedded control where 70 MIPS headroom is needed.
Design consideration: the part requires a VCAP/VDDCORE stabilizing capacitor on its internal 2.5V core regulator pin, and all VDD/VSS pairs must be connected and decoupled for reliable operation.
This page adds value beyond the datasheet by synthesizing drop-in same-family alternatives, FAQ-driven selection guidance, and application pairings in one reference.
Drop-in alternatives for DSPIC33EP64GP502-I/SP — 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 DSPIC33EP64GP502-I/SP (same form factor and footprint) — differing in Package, Operating Temperature, Mounting Type, CPU Speed, Programming Interface.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33EP32GP502-I/SP
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$3.62 / Unit
View Datasheet →DSPIC33EP64MC502-I/SP
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$2.98 / Unit
View Datasheet →DSPIC33EP32MC502-I/SP
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33EP128GP502-I/SP
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33EP64GP502-I/SS
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33EP64GP502-I/SP Maximum Ratings & Electrical Characteristics
| Core | dsPIC33E 16-bit DSC |
| CPU Speed | 70 MIPS |
| Program Memory Size | 64KB (22K x 24) Flash |
| Data Bus Width | 16 bit |
| Supply Voltage Range | 3 V to 3.6 V |
| Operating Temperature | -40C to +85C (I grade) |
| Package | 28-SPDIP (SP), through-hole |
| Mounting Type | Through Hole |
| Communication Interfaces | CAN 2.0B, UART, SPI, I2C |
| ADC | High-performance 10/12-bit ADC |
| Timers | Multiple 16-bit general purpose timers |
| Special Peripherals | CTMU, PTG, High-Speed PWM (family feature) |
| RoHS Status | Compliant |
| Lifecycle Stage | Active |
| Packaging | Tube |
| Programming / Debug | ICSP via PGECx/PGEDx pairs, ICSPCLK/ICSPDAT |
DSPIC33EP64GP502-I/SP Pin Configuration
| Pin 1 | MCLR — Master clear reset (active low) / programming voltage input |
| Pin 2 | AN0 — Analog input 0 / VREF+ / RB0 |
| Pin 3 | AN1 — Analog input 1 / VREF- / RB1 |
| Pin 4 | AN2 — Analog input 2 / SS1 / RB2 |
| Pin 5 | AN3 — Analog input 3 / CTMU current source / RB3 |
| Pin 6 | AN4 — Analog input 4 / comparator input / RB4 |
| Pin 7 | VDD — Positive supply (3.0-3.6V) |
| Pin 8 | VSS — Ground reference |
| Pin 9 | OSC1/CLKI — Oscillator crystal input / external clock input |
| Pin 10 | OSC2/CLKO — Oscillator crystal output / clock output |
| Pin 11 | VCAP/VDDCORE — Internal core regulator stabilizing capacitor pin |
| Pin 12 | PGED1/AN5 — In-circuit debug/programming data 1 / analog input 5 / RB5 |
| Pin 13 | PGEC1/AN6 — In-circuit debug/programming clock 1 / analog input 6 / RB6 |
| Pin 14 | VSS — Ground reference |
| Pin 15 | VDD — Positive supply (3.0-3.6V) |
| Pin 16 | PGD3/SOSCI — Debug data 3 / secondary oscillator input / RB8 |
| Pin 17 | PGC3/SOSCO/T1CK — Debug clock 3 / secondary oscillator output / Timer1 clock / RB9 |
| Pin 18 | PGED2/RTCC/INT0 — Debug data 2 / RTCC / external interrupt 0 / RB10 |
| Pin 19 | PGEC2/SDA1 — Debug clock 2 / I2C1 data / RB11 |
| Pin 20 | PGD2/SCL1 — Debug data 2 / I2C1 clock / RB12 |
| Pin 21 | RP1 — Remappable peripheral pin 1 / RB13 |
| Pin 22 | RP2 — Remappable peripheral pin 2 / RB14 |
| Pin 23 | RP3 — Remappable peripheral pin 3 / RB15 |
| Pin 24 | AVSS — Analog ground reference |
| Pin 25 | AVDD — Analog positive supply |
| Pin 26 | RP4 — Remappable peripheral pin 4 |
| Pin 27 | RP5 — Remappable peripheral pin 5 |
| Pin 28 | VDD — Positive supply (3.0-3.6V) |
Typical Applications
DSPIC33EP64GP502-I/SP is suitable for 6 applications: Digital Power Supplies, BLDC / PMSM Motor Control, Industrial Automation Nodes, Battery Charging and BMS, Portable and General Purpose Embedded Control, Automotive-adjacent CAN Modules.
Digital Power Supplies
The DSPIC33EP64GP502 fits digital power conversion because its 70 MIPS core closes current-mode control loops fast enough for switching stages at hundreds of kHz, while its high-performance ADC samples voltage and current feedback with low latency. The dsPIC33E architecture pairs the ADC with the Peripheral Trigger Generator so sampling synchronizes to the PWM cycle automatically, reducing CPU jitter. Typical use places the DSC between the feedback divider and the PWM gate drivers of a buck or LLC stage; unlike analog controllers it supports soft-start shaping, non-linear gain, and CAN-based telemetry in the same chip.
Recommended
BLDC / PMSM Motor Control
For brushless DC and permanent-magnet synchronous motor drives, the DSPIC33EP64GP502 provides the 70 MIPS headroom needed for sensorless field-oriented control or hall-based commutation in a low-cost 28-pin device. The dsPIC33E's high-speed PWM with complementary outputs and dead-time insertion drives a three-phase inverter directly, and the fast ADC captures bus current via a single shunt. Placed between hall/sensor inputs and gate drivers, it executes commutation and fault protection locally; the 64KB flash holds FOC code plus MODBUS or CAN communication for industrial drives.
Recommended
Industrial Automation Nodes
In factory automation and industrial sensing nodes, the DSPIC33EP64GP502 combines its CAN 2.0B controller, UART, SPI, and I2C interfaces to bridge field sensors into control networks. The 70 MIPS core filters and scales sensor data locally, while the CTMU supports capacitive or time-based measurements. Its -40C to +85C industrial rating matches cabinet environments, and the SPDIP package eases prototype and legacy through-hole board maintenance. Typical role: an intelligent I/O module reading encoders and analog channels, then publishing status onto a CAN bus at 1 Mbit/s.
Recommended
Battery Charging and BMS
Battery-management and smart-charger designs benefit from the DSPIC33EP64GP502's combination of ADC, CTMU, PWM, and CAN in one 3.3V device. The ADC monitors cell voltages and current shunts; the PWM stage drives a synchronous buck charger with CC/CV profiles executed in software. The CTMU can assist with charge time measurement for diagnostic routines. In a typical charger, the DSC sits between the front-end sense network and the power stage, terminating charge, logging state-of-charge, and communicating pack status over CAN to vehicle or storage-system controllers.
Recommended
Portable and General Purpose Embedded Control
As a general-purpose controller, the DSPIC33EP64GP502 replaces discrete MCU-plus-glue-logic designs: 70 MIPS performance handles complex state machines, DSP filtering, and multiple communication stacks concurrently. The 28-pin SPDIP through-hole package is favored in lab instrumentation, hobby and educational platforms, and low-volume products where hand assembly or socketed boards are preferred. Its 64KB flash typically holds protocol handling, UI code, and control loops with room to spare, and the identical pinout family allows memory resizing without PCB changes.
Recommended
Automotive-adjacent CAN Modules
The DSPIC33EP64GP502's integrated CAN 2.0B controller makes it a practical choice for non-automotive-grade CAN nodes such as agricultural equipment accessories, marine electronics, and industrial vehicle telematics. Running at up to 1 Mbit/s, the CAN peripheral offloads message buffering from the 70 MIPS CPU, which handles sensor acquisition and protocol translation. The extended-temperature family option covers harsh environments. In a typical node, the DSC reads analog or encoder inputs, executes local diagnostics, and exchanges periodic and event-triggered CAN frames with a master controller.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33EP64GP502-I/SP — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33EP32GP502-I/SP | DSPIC33EP64MC502-I/SP | DSPIC33EP128GP502-I/SP | DSPIC33EP64GP502-I/SS |
|---|---|---|---|---|---|
| Package | 28-SPDIP (SP) | 28-SPDIP (SP) - same | 28-SPDIP (SP) - same | 28-SPDIP (SP) - same | 28-SSOP - same 28-pin electrical pinout, different footprint |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core Speed | 70 MIPS | 70 MIPS | 70 MIPS | 70 MIPS | 70 MIPS |
| Flash Memory | 64KB (22K x 24) | 32KB | 64KB | 128KB | 64KB (22K x 24) |
| Supply Voltage | 3.0 V to 3.6 V | 3.0 V to 3.6 V | 3.0 V to 3.6 V | 3.0 V to 3.6 V | 3.0 V to 3.6 V |
| Temperature Range | -40C to +85C (I) | -40C to +85C (I) | -40C to +85C (I) | -40C to +85C (I) | -40C to +85C (I) |
| Peripheral Orientation | General Purpose (GP): ADC, CTMU, PTG, CAN | General Purpose (GP) | Motor Control (MC): high-speed PWM emphasis | General Purpose (GP) | General Purpose (GP) - identical die |
| Communication | CAN 2.0B, UART, SPI, I2C | CAN 2.0B, UART, SPI, I2C | CAN 2.0B, UART, SPI, I2C | CAN 2.0B, UART, SPI, I2C | CAN 2.0B, UART, SPI, I2C |
| Relative Unit Cost | Baseline (approx. $5.42 @ qty 1 as of 2026-09-25) | Lower (halved flash) | Comparable | Higher (2x flash) | Comparable |
Key Differentiators
- Double the flash of the entry variant at the same pin count (vs DSPIC33EP32GP502-I/SP)
- Through-hole SPDIP for prototyping and legacy maintenance (vs DSPIC33EP64GP502-I/SS)
- General-purpose analog emphasis vs motor-control specialization (vs DSPIC33EP64MC502-I/SP)
Design Notes
The dsPIC33EP64GP502 integrates an internal 2.5V core regulator supplied from the 3.0-3.6V VDD rail. A low-ESR ceramic capacitor (typically 10uF with a parallel 0.1uF per Microchip layout guidance) must be connected at the VCAP/VDDCORE pin (pin 11) - do not drive this pin externally. Connect and decouple every VDD/VSS pair (pins 7/8, 15/14, 28) and the AVDD/AVSS analog pair (25/24), isolating AVDD through an RC filter (e.g., ferrite + 10uF) from the digital rail for best ADC performance.
The device has multiple PGECx/PGEDx debug/programming pairs (pins 12/13, 18/19 or 20). Per Microchip, ICSPCLK and ICSPDAT must come from the same pair - e.g., PGEC2 for the clock requires PGED2 for the data; mixing pairs prevents programming. Keep the chosen pair routed to a 5-pin ICSP header (MCLR, VDD, GND, PGECx, PGEDx) with no heavy loads on those pins. Also reserve MCLR with a 10k pull-up; it doubles as the high-voltage programming entry.
For the SPDIP through-hole package, keep oscillator traces (OSC1/OSC2, pins 9-10) short with crystal load capacitors placed directly at the pins, and keep the VCAP capacitor loop tight. Secondary oscillator pins (SOSCI/SOSCO, pins 16-17) share functions with debug pins - if you enable the secondary oscillator, plan debug pair selection accordingly. Remappable RP pins allow routing UART/SPI/PWM to convenient header positions in through-hole designs, simplifying single-layer prototype layouts.
Estimated: at 70 MIPS with all peripherals active, core current is in the tens-of-mA range on a 3.3V rail, so dissipation stays roughly 100-200 mW; the 28-SPDIP package's natural convection thermal resistance keeps junction rise below about 10-20 C/W order at these power levels. No heatsink is required. Verify against the datasheet current-vs-MIPS curves if the design runs continuously at maximum clock in high-ambient (+85C) enclosures.
Compliance Information
Standard Microchip commercial/industrial product; RoHS-compliant and lead-free per DigiKey listing practices. Not an automotive AEC-Q100 part - use dsPIC33EP automotive-qualified variants for vehicle applications.
