DSPIC33EP512GM310T-I/PF - 70 MIPS DSC, 512KB Flash | Microchip
MPN: DSPIC33EP512GM310T-I/PF ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $23.21 | $23.21 |
| 10 | $20.95 | $209.50 |
| 100 | $18.65 | $1,865.00 |
| 500 | $17.2 | $8,600.00 |
| 1,000 | $15.95 | $15,950.00 |
DSPIC33EP512GM310T-I/PF Overview
A digital signal controller combines the compute architecture of a microcontroller with the mathematical acceleration of a DSP. Within the power management hierarchy, the DSC sits above a general-purpose MCU for control-loop applications such as digital power conversion, motor control, and precision sensing, where a classic MCU lacks multiply-accumulate throughput but a standalone DSP lacks integrated peripherals. The dsPIC33E family from Microchip occupies this intersection, integrating a DSP engine with rich analog and timing peripherals on a single die.
Key features of this device include 12 MCPWM (motor control PWM) channels, 8 input capture and 8 output compare channels, 2 quadrature encoder interfaces (QEI), and 4 integrated operational amplifiers for direct sensor signal conditioning. The Charge Time Measurement Unit (CTMU) enables capacitive touch and precise time measurement, while the Peripheral Trigger Generator (PTG) automates peripheral sequencing to offload the CPU.
Architecturally, the dsPIC33E core provides DSP instructions, a 17-bit by 17-bit single-cycle hardware multiplier, a barrel shifter, and four DMA channels that move data between peripherals and RAM without CPU intervention. The 3.0V to 3.6V supply range suits standard 3.3V systems, and 85 general-purpose I/O pins support dense board designs in the 14x14 mm TQFP footprint.
Typical applications include precision brushless DC and PMSM motor control (leveraging the MCPWM and QEI blocks), digital power supplies and solar inverters, and sensor fusion systems that use the on-chip op-amps and CTMU for direct analog front-end duties.
For design, budget the 3.3V rail decoupling with at least one 0.1uF capacitor per VDD pin pair placed close to the package, and plan the oscillator circuit early since 70 MIPS operation requires a 7.3728 MHz crystal with 15x PLL or an internal fast RC option with lower accuracy.
This page synthesizes distributor pricing, pin-compatible family alternatives, and practical design notes beyond what the manufacturer datasheet alone provides.
Drop-in alternatives for DSPIC33EP512GM310T-I/PF — 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 DSPIC33EP512GM310T-I/PF (same form factor and footprint) — differing in Package, Core, Operating Temperature, RAM Size, Packaging.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33EP512GM310-I/PF
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33EP512GM310-E/PF
✅ Drop-In✓ In Stock
$5.25 / Unit
View Datasheet →DSPIC33EP256GM310T-I/PF
✅ Drop-In✓ In Stock
$4.9 / Unit
View Datasheet →DSPIC33EP256GM710T-I/PF
✅ Drop-In✓ In Stock
$5.4 / Unit
View Datasheet →DSPIC33EP512GM710T-I/PF
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$6.8 / Unit
View Datasheet →DSPIC33EP512GM604T-I/PT
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33EP512GM310T-I/PF Maximum Ratings & Electrical Characteristics
| Core | dsPIC33E, 16-bit |
| Maximum CPU Speed | 70 MIPS |
| Program Memory Size | 512KB (170K x 24) Flash |
| RAM Size | 48KB (48K x 8) |
| Supply Voltage Range | 3 V to 3.6 V |
| General Purpose I/O | 85 I/O |
| Motor Control PWM Channels | 12 MCPWM |
| Input Capture / Output Compare | 8 / 8 IC/OC |
| Quadrature Encoder Interfaces | 2 QEI |
| Integrated Op-Amps | 4 |
| Charge Time Measurement Unit | Yes (CTMU) |
| Peripheral Trigger Generator | Yes (PTG) |
| DMA Channels | 4 |
| Operating Temperature | -40C to +85C (Industrial) |
| Package | 100-TQFP (14x14 mm) |
| Mounting Type | Surface Mount |
| Packaging | Tape & Reel (T) |
| RoHS Status | Compliant |
DSPIC33EP512GM310T-I/PF 100-tqfp (14x14 mm) Pin Configuration Guide
Pin configuration for DSPIC33EP512GM310T-I/PF (100-tqfp (14x14 mm) 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 DSPIC33EP512GM310T-I/PF.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33EP512GM310T-I/PF is suitable for 6 applications: BLDC/PMSM Motor Control, Digital Power Conversion, Sensor Signal Conditioning and Data Acquisition, Industrial Automation and Robotics, Automotive-Adjacent Embedded Control, Portable Test and Measurement Instruments.
BLDC/PMSM Motor Control
The DSPIC33EP512GM310T-I/PF is purpose-built for precision motor control: its 12 MCPWM channels generate complementary PWM pairs with hardware dead-time insertion, its 2 QEI modules decode quadrature encoder feedback, and its 4 on-chip op-amps amplify shunt-resistor current signals without external amplifiers. The 70 MIPS core executes field-oriented control (FOC) loops at switching frequencies of 20 kHz or more with ample cycle budget. Firmware uses the DMA channels to stream ADC results from current-sense conversions into RAM, keeping the ISR footprint small. Because PWM, ADC, and encoder peripherals are tightly coupled on-chip, control-loop latency is deterministic - a key benefit over MCU-plus-DSP two-chip solutions.
Recommended
Digital Power Conversion
In digital power supplies, solar inverters, and PFC stages, the 70 MIPS dsPIC33E core closes voltage and current loops with sub-switching-period latency. The MCPWM modules support complementary and push-pull modes with programmable dead time, while high-speed ADCs sample feedback through the internal op-amps for average-current-mode control. The Peripheral Trigger Generator (PTG) sequences ADC triggers from PWM events in hardware, eliminating software jitter that degrades THD in inverter outputs. With 512KB of Flash, the controller retains multi-mode firmware - soft start, fault handling, and communication protocols - with room for field updates. Deterministic interrupt latency and 3.0-3.6V operation on standard digital rails simplify integration into existing power-stage boards.
Recommended
Sensor Signal Conditioning and Data Acquisition
The four integrated operational amplifiers let the DSPIC33EP512GM310T-I/PF condition bridge, shunt, and microphone-level signals directly on-chip, cutting BOM cost and board area. The Charge Time Measurement Unit (CTMU) measures capacitance with sub-picofarad resolution for capacitive touch, humidity, and level-sensing interfaces. The 8 input-capture channels timestamp external events for time-of-flight and flow measurement, and the DSP engine applies FIR/IIR filtering in real time using single-cycle MAC instructions. With 512KB of Flash, calibration tables, compensation curves, and multi-protocol communication stacks coexist with the acquisition firmware. The 85 I/O pins support dense multi-sensor boards in the compact 14x14 mm TQFP footprint.
Recommended
Industrial Automation and Robotics
For industrial controllers, the DSC combines real-time control with system management: dual QEI modules track two encoder axes simultaneously, the 12 MCPWM channels drive multi-axis servo or stepper outputs, and the 4 DMA channels stream UART/SPI traffic without CPU load. The 70 MIPS DSP core handles trajectory interpolation and motion profiles, while 512KB Flash stores multi-recipe firmware and parameter tables. The remappable Peripheral Pin Select system lets the same PCB serve multiple product variants by reassigning UART, SPI, and capture pins in firmware, reducing PCB SKU count. Industrial -40C to +85C rating and 3.3V noise margins support factory-floor environments, and CAN/SPI expansion links the controller to PLC backbones and HMI panels.
Recommended
Automotive-Adjacent Embedded Control
While the I-grade device is not AEC-Q100 qualified, the dsPIC33EP platform with CTMU touch sensing and robust MCPWM outputs fits off-road equipment, accessory modules, and motorsport telemetry where industrial grade suffices. The CTMU provides capacitive touch buttons sealed behind plastic panels - resistant to dirt and moisture in vehicle cabins. The 2 QEI modules read throttle and position sensors, the DSP core runs filters for noisy analog channels, and 512KB Flash supports OTA-style field updates via CAN or UART bootloaders. Designers needing full automotive qualification should move to the Microchip automotive-qualified variants of the family, keeping firmware largely portable since peripherals and the core architecture remain identical across temperature grades.
Recommended
Portable Test and Measurement Instruments
Handheld meters, dataloggers, and bench instruments benefit from the DSC's blend of analog integration and math throughput. The on-chip op-amps buffer high-impedance inputs ahead of the ADC, the CTMU performs precision timing and capacitance measurement, and DSP instructions compute RMS, FFT, and statistical processing on captured waveforms at 70 MIPS. Four DMA channels move samples to 48KB of RAM for block processing without CPU stalls, and 512KB Flash stores calibration constants, multi-language UI assets, and communication firmware (USB-serial, SPI, UART). The 3.0-3.6V supply and surface-mount 14x14 mm TQFP suit compact, battery-operated enclosures, while the industrial temperature rating keeps handheld instruments accurate across job-site conditions.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33EP512GM310T-I/PF — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33EP512GM310-I/PF | DSPIC33EP256GM310T-I/PF | DSPIC33EP256GM710T-I/PF | DSPIC33EP512GM710T-I/PF |
|---|---|---|---|---|---|
| Package | 100-TQFP (14x14 mm) | 100-TQFP (14x14 mm) - same | 100-TQFP (14x14 mm) - same | 100-TQFP (14x14 mm) - same | 100-TQFP (14x14 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Memory (Flash) | 512KB (170K x 24) | 512KB | 256KB | 256KB | 512KB |
| RAM | 48KB (48K x 8) | 48KB | 48KB | Higher RAM tier per GM710 family data | Higher RAM tier per GM710 family data |
| CPU Speed | 70 MIPS | 70 MIPS | 70 MIPS | 70 MIPS | 70 MIPS |
| Operating Temperature | -40C to +85C (I) | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C |
| MCPWM Channels | 12 | 12 | 12 | 12 | 12 |
| 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 |
| Packaging Format | Tape & Reel (T) | Tray | Tape & Reel | Tape & Reel | Tape & Reel |
Key Differentiators
- Maximum program memory in the GM310 tier (vs DSPIC33EP256GM310T-I/PF)
- Cost-efficient footprint-compatible option (vs DSPIC33EP256GM310T-I/PF)
- Extended-temperature pin-compatible sibling exists (vs DSPIC33EP512GM310-E/PF)
- Higher RAM tier within same footprint (vs DSPIC33EP512GM710T-I/PF)
Design Notes
Place a 0.1uF ceramic decoupling capacitor at every VDD/VSS pin pair, as close to the package as possible, plus bulk 10uF near the supply entry. The dsPIC33E core requires the VDDCORE rail to be decoupled per the datasheet power architecture - follow the recommended capacitor value and ESR range exactly, as an incorrectly decoupled core rail is the most common cause of erratic reset behavior on this family. Keep the 14x14 mm TQFP's thermal pad region (if used on your variant) connected to a ground pour with multiple vias.
Use the Peripheral Pin Select (PPS) feature to route high-speed digital peripherals away from analog pins during layout rather than after; reassigning UART/SPI pins in firmware lets you physically separate switching noise from the op-amp and ADC inputs. Route the MCPWM outputs to the gate drivers with series resistors to control edge rates, and keep current-sense feedback traces differential and short to the on-chip op-amp input pins to preserve signal integrity in motor drive environments.
Do not assume the tape-and-reel (T) and tray versions differ electrically - they do not - but do confirm the temperature suffix: E extends to +125C while I stops at +85C. When substituting within the family, always re-run the MPLAB linker map: program memory shrinks from 512KB on the GM310 tier to 256KB on the GM256 tier, and RAM allocation changes across GM3xx/GM6xx/GM7xx variants. Finally, the flash write-erase endurance specification in the datasheet must be respected for any in-field parameter logging design.
Compliance Information
RoHS compliant per DigiKey and PCB Electronics distributor listings. The I-grade device is not AEC-Q100 qualified; for automotive-qualified operation use Microchip automotive variants of the dsPIC33E family. REACH, halogen-free, and conflict-minerals declarations should be confirmed via Microchip official environmental documentation.
