DSPIC33EP512GM310-I/PT - 16-bit 70 MIPS DSC 512KB Flash | Microchip
MPN: DSPIC33EP512GM310-I/PT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $9.12 | $9.12 |
| 10 | $8.35 | $83.50 |
| 100 | $7.6 | $760.00 |
| 500 | $6.95 | $3,475.00 |
| 1,000 | $6.38 | $6,380.00 |
DSPIC33EP512GM310-I/PT Overview
A digital signal controller combines the compute architecture of a microcontroller with the numeric throughput of a DSP. Within the power-management hierarchy of embedded silicon, the dsPIC33EP512GM310 sits in the dsPIC33EP GM3 family of 16-bit Harvard-architecture DSCs, which occupy the space between general-purpose MCUs and dedicated DSPs, making them a popular choice wherever tight real-time control loops and math-intensive signal processing coexist in one chip.
Key features include the 70 MIPS dsPIC33E core, 512 KB of self-programmable flash, 16 KB of RAM, an integrated 12-channel 10/12-bit ADC, and on-chip analog capability including op amps (the GM310 lists 2 integrated op amps) plus 8 capture/compare and 8 output-compare channels with 4 quadrature encoder interfaces for motor feedback, per distributor listings.
Technically, the device runs from a single 3.3 V supply and uses the enhanced dsPIC33E peripheral set: high-speed PWM for inverter control, DMA, and DSP engine instructions such as multiply-accumulate that accelerate filter and transform computations in motor-control and power-conversion firmware.
Typical applications are precision motor control (BLDC, PMSM, ACIM drives), digital power supplies and inverters, and industrial sensing/signal-conditioning nodes that exploit the on-chip op amps and high-speed ADC.
For design, budget the 3.3 V rail decoupling carefully across the multiple VDD/VSS pairs of the 100-TQFP and verify MSL handling before reflow. Program with Microchip MPLAB X IDE and debug with ICD/REAL ICE tools.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
Drop-in alternatives for DSPIC33EP512GM310-I/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 DSPIC33EP512GM310-I/PT (same form factor and footprint) — differing in Package, RAM, Core, Packaging, Core Architecture.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33EP512GM310-E/PT
✅ Drop-In✓ In Stock
$6.55 / Unit
View Datasheet →DSPIC33EP256GM310T-I/PT
✅ Drop-In✓ In Stock
$4.95 / Unit
View Datasheet →DSPIC33EP512GM310T-I/PT
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33EP512GM310-I/PT Maximum Ratings & Electrical Characteristics
| Core | dsPIC33E 16-bit |
| Max CPU Speed | 70 MIPS |
| Flash Memory | 512 KB |
| RAM | 16 KB |
| Supply Voltage | 3.3 V |
| Package | 100-TQFP (12x12 mm), PT suffix |
| Pin Count | 100 |
| Operating Temperature | -40C to +85C (I grade) |
| ADC | 10/12-bit ADC |
| Integrated Op Amps | Yes (op amp channels per GM3 family) |
| Capture/Compare Channels | 8/8 (IC/OC) |
| Quadrature Encoder Interfaces | 4 (QEI) |
| PWM | Motor-control PWM (dsPIC33EP GM3 peripheral set) |
| Mounting Type | Surface Mount |
| Packaging | Tray |
| Architecture | Harvard, 16-bit DSC |
DSPIC33EP512GM310-I/PT 100-tqfp (12x12 mm), pt suffix Pin Configuration Guide
Pin configuration for DSPIC33EP512GM310-I/PT (100-tqfp (12x12 mm), pt suffix 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 DSPIC33EP512GM310-I/PT.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33EP512GM310-I/PT is suitable for 6 applications: Precision Motor Control (BLDC/PMSM Drives), Digital Power Supplies and Inverters, Industrial Automation and Sensing Nodes, Robotics and Motion Control, Portable and Battery-Powered Instruments, Automotive-Adjacent Embedded Control (Industrial Vehicles).
Precision Motor Control (BLDC/PMSM Drives)
The DSPIC33EP512GM310-I/PT fits precision motor control because its 70 MIPS dsPIC33E core executes field-oriented control (FOC) loops at high sample rates while the 4 quadrature encoder interfaces handle multi-axis position feedback without external counters. The motor-control PWM peripheral generates complementary outputs with dead-time insertion for three-phase inverters, and the 8 input-capture channels timestamp hall-sensor or encoder edges. In a typical PMSM drive, the ADC samples phase currents at PWM frequency, on-chip op amps amplify shunt signals, and the DSP engine runs Clarke/Park transforms plus PI current loops in firmware. The single-chip integration reduces BOM count and loop latency compared with MCU-plus-external-ADC approaches.
Recommended
Digital Power Supplies and Inverters
For digital power conversion, the DSPIC33EP512GM310-I/PT offers the deterministic 70 MIPS core and high-speed PWM needed to close voltage and current loops at switching frequencies common in LLC, buck, and solar-microinverter designs. The 10/12-bit ADC can be triggered precisely at mid-PWM-cycle to avoid switching noise in sampled feedback, while output-compare channels implement burst or phase-shift modulation schemes. The 512 KB flash leaves ample room for soft-start state machines, protection firmware, and compensation tables. Compared with analog controllers, firmware-based control enables adaptive compensation, telemetry, and field updates, and the industrial -40C to +85C rating suits telecom rectifier and industrial power environments.
Recommended
Industrial Automation and Sensing Nodes
In factory automation nodes, the DSPIC33EP512GM310-I/PT combines sensor signal conditioning and protocol handling on one chip. Its integrated op amps buffer low-level signals from pressure, load-cell, or current sensors directly, and the 10/12-bit ADC digitizes multiple channels with DMA offloading the CPU. The 70 MIPS headroom runs filtering, scaling, and diagnostics while hardware communication peripherals (UART, SPI, I2C per the dsPIC33EP GM3 peripheral set) manage Modbus or CAN-style field links. The 512 KB flash supports protocol stacks plus datalogging tables, and the 100-pin TQFP exposes enough I/O for multi-sensor racks. On-chip features shorten design cycles versus discrete signal-chain builds.
Recommended
Robotics and Motion Control
Multi-axis motion platforms benefit from the DSPIC33EP512GM310-I/PT's four QEI modules, which simultaneously track four encoder inputs for coordinated motion without software counting overhead. The 70 MIPS core runs trapezoidal or S-curve profile generation, PID position loops, and step/dir interpolation, while 8 output-compare channels drive gate or servo signals. The 512 KB flash stores trajectory tables and kinematic firmware, and 16 KB RAM buffers real-time command streams from a host. Because position feedback, PWM generation, and communications live in one 100-TQFP device, inter-axis synchronization jitter is minimized relative to designs spread across multiple smaller controllers.
Recommended
Portable and Battery-Powered Instruments
Handheld instrumentation gains from the DSPIC33EP512GM310-I/PT's single 3.3 V supply, which simplifies battery-backed power design, and its ability to run signal-processing algorithms locally: FFT-based spectrum display, RMS metering, or sensor linearization execute on the DSP engine at 70 MIPS. The 10/12-bit ADC with on-chip op amps measures sensor bridges directly, and the 100-pin TQFP provides ample I/O for keypads, displays, and USB/UART bridges. The 512 KB flash accommodates calibration tables, logging, and UI firmware with room to spare. The industrial temperature rating also allows these instruments to be used in outdoor or vehicle-mounted diagnostics environments.
Recommended
Automotive-Adjacent Embedded Control (Industrial Vehicles)
Off-road and industrial vehicle electronics - hydraulic pumps, fan controllers, welder controls - benefit from the DSPIC33EP512GM310-I/PT where its 70 MIPS core executes pump/motor control and the 4 QEI interfaces read wheel or valve position encoders. The extended-temperature DSPIC33EP512GM310-E/PT variant (rated to +125C) should be selected for engine-bay and hydraulic-compartment zones, and it is pin-to-pin identical, allowing one PCB to serve both thermal zones by adjusting only the BOM. The 512 KB flash supports OBD-style diagnostics and flash field updates, and the on-chip op amps condition resistive and current-loop sensors without external amplifiers, cutting board area and cost.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33EP512GM310-I/PT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33EP512GM310-E/PT | DSPIC33EP256GM310T-I/PT | DSPIC33EP512GM310T-I/PT |
|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 100-TQFP (12x12 mm) | 100-TQFP (12x12 mm) - same | 100-TQFP (12x12 mm) - same | 100-TQFP (12x12 mm) - same |
| Core / Speed | dsPIC33E, 70 MIPS | dsPIC33E, 70 MIPS | dsPIC33E, 70 MIPS | dsPIC33E, 70 MIPS |
| Flash Memory | 512 KB | 512 KB | 256 KB | 512 KB |
| RAM | 16 KB | 16 KB | 16 KB | 16 KB |
| Operating Temperature | -40C to +85C (I) | -40C to +125C (E) | -40C to +85C (I) | -40C to +85C (I) |
| Capture/Compare & QEI | 8/8 IC/OC, 4 QEI | 8/8 IC/OC, 4 QEI | 8/8 IC/OC, 4 QEI | 8/8 IC/OC, 4 QEI |
| Packaging | Tray | Tray | Tape & Reel | Tape & Reel |
Key Differentiators
- Maximum flash density in the 100-pin GM310 group (vs DSPIC33EP256GM310T-I/PT)
- Cost-optimized industrial grade (vs DSPIC33EP512GM310-E/PT)
- Tray packaging suits prototyping (vs DSPIC33EP512GM310T-I/PT)
Design Notes
The dsPIC33EP512GM310 runs from a single 3.3 V rail with multiple VDD/VSS pin pairs on the 100-TQFP. Decouple every VDD pair with 0.1 uF ceramics placed within 2 mm of the pins, plus bulk capacitance near the regulator. Estimated: a 70 MIPS core at typical operating current on the order of tens of mA (verify exact ICC in the datasheet electrical specifications table) keeps total power low, but brown-out behavior during flash programming requires a stable rail - add a supervisor or enable BOR if the supply is shared with noisy motor drivers.
Keep the analog domain clean: route the ADC input traces and op-amp pins away from motor-control PWM and gate-driver switching loops. Use a solid ground plane under the TQFP and star-connect the analog return to the main ground at one point near the decoupling network. Trigger ADC sampling at mid-PWM-cycle (center-aligned PWM) so current sampling avoids switching edges - this is the standard technique in Microchip motor-control reference designs for the dsPIC33E family.
Verify the temperature suffix before assembly: the -I part is rated -40C to +85C while the -E part reaches +125C; substituting the I grade into a hot enclosure risks out-of-spec operation. Also confirm MSL handling of TQFP packages before reflow and verify multiplexed pin functions (RPx remappable pins) against the latest datasheet revision, since assignments differ across the GM3/6/7 family members and a wrong mapping can lock out debug pins.
Compliance Information
Compliance status not explicitly stated in the provided web data; verify RoHS/REACH on Microchip's official product page before production ordering.
