DSPIC33EP512GM306T-I/PT - 70 MIPS DSC, 512KB Flash TQFP-64 | Microchip
MPN: DSPIC33EP512GM306T-I/PT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $8.12 | $8.12 |
| 10 | $7.31 | $73.10 |
| 100 | $6.55 | $655.00 |
| 500 | $5.9 | $2,950.00 |
| 1,000 | $5.31 | $5,310.00 |
DSPIC33EP512GM306T-I/PT Overview
A digital signal controller combines the computational power of a DSP with the peripheral integration and ease of use of a microcontroller. Within the power-management hierarchy of embedded systems, the dsPIC33E family sits as the control element between sensors and power stages, executing control loops for motor drives, digital power converters, and embedded sensing systems that a general-purpose MCU or a standalone DSP would otherwise handle.
Key features include 12-channel Motor Control PWM (MCPWM), 8 input capture and 8 output compare channels, 2 quadrature encoder interfaces (QEI), 4 on-chip operational amplifiers, a charge time measurement unit (CTMU) for capacitive touch and precision timing, and a Pattern Generator (PTG). These peripherals target precision motor control and digital power conversion directly, reducing external component count.
Technically, the dsPIC33EP core uses a modified Harvard 16-bit architecture with DSP engine (17-bit multiplier, 40-bit accumulator), barrel shifter, and DMA supporting fast data movement. The 30-channel 10/12-bit ADC with up to 4 simultaneous sample-and-hold circuits enables multi-phase current sensing at high sample rates. Communication includes I2C, SPI, and UART interfaces with 53 general-purpose I/O pins.
Typical applications include BLDC/PMSM motor control for industrial drives, digital power supplies (PFC, LLC), solar inverters, and automotive auxiliary systems. The high-resolution PWM and integrated op-amps fit sensorless FOC implementations in a single chip.
Design consideration: operate from 3.0V to 3.6V (2.5V to 3.6V derated below 70 MIPS); ensure decoupling on all VDD/VSS pairs and keep analog grounds separate at the AVSS pin for ADC accuracy.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
Drop-in alternatives for DSPIC33EP512GM306T-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 DSPIC33EP512GM306T-I/PT (same form factor and footprint) — differing in Package, Operating Temperature, Core Architecture, Program Memory (Flash), RAM.
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DSPIC33EP512GM306-I/PT
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33EP512GM306T-E/PT
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33EP512GM306T-I/PF
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33EP256GM306T-I/MR
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
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View Datasheet →DSPIC33EP512GM306T-I/PT Maximum Ratings & Electrical Characteristics
| Core | dsPIC33E 16-bit |
| Maximum Speed | 70 MIPS |
| Program Memory (Flash) | 512 KB (170K x 24) |
| RAM | 48 KB (16KB stated by Mouser summary; 48K x 8 per distributor spec) |
| Operating Voltage | 3.0 V to 3.6 V (70 MIPS) |
| I/O Pins | 53 |
| MCPWM Channels | 12 |
| Input Capture / Output Compare | 8 / 8 |
| Quadrature Encoder Interfaces | 2 |
| On-chip Operational Amplifiers | 4 |
| ADC Channels | 30-channel 10/12-bit |
| Communication Interfaces | I2C, SPI, UART |
| DMA Channels | 4 |
| Special Peripherals | CTMU, PTG |
| Operating Temperature | -40C to +85C |
| Package | TQFP-64 (10x10 mm) |
| Mounting Type | Surface Mount |
| Qualification | AEC-Q100 |
| Series | dsPIC33EPxxxGM3xx |
DSPIC33EP512GM306T-I/PT tqfp-64 (10x10 mm) Pin Configuration Guide
Pin configuration for DSPIC33EP512GM306T-I/PT (tqfp-64 (10x10 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 DSPIC33EP512GM306T-I/PT.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33EP512GM306T-I/PT is suitable for 6 applications: Precision Motor Control (BLDC/PMSM FOC), Digital Power Supplies (PFC / LLC), Solar Inverters and Renewable Energy Conversion, Automotive Auxiliary Systems, Capacitive Touch and Embedded Sensing, Industrial Automation and Motion Coordination.
Precision Motor Control (BLDC/PMSM FOC)
The DSPIC33EP512GM306T-I/PT fits high-performance motor control because its 70 MIPS DSP core executes field-oriented control loops well above electrical frequencies of typical PMSM motors, while 12 MCPWM channels generate complementary, dead-time-controlled gate signals for three-phase inverters. The 30-channel 10/12-bit ADC with multiple sample-and-hold circuits samples phase currents simultaneously with PWM-synchronized triggers, and the 4 on-chip op-amps amplify shunt signals without external amplifiers. Two QEI modules accept incremental encoder feedback for servo drives. Placing current-sense op-amp outputs on ADC-dedicated pins and sampling at PWM centers minimizes switching-noise error, enabling low-torque-ripple sensorless or encoder-based FOC in industrial drives, robotics, and pumps.
Recommended
Digital Power Supplies (PFC / LLC)
For digital power conversion, the 12-channel high-resolution MCPWM supports phase-shifted full-bridge, LLC half-bridge, and interleaved PFC topologies with hardware dead-time insertion. The 70 MIPS core closes average-current-mode loops at switching frequencies into the hundreds of kHz, and 4 DMA channels stream ADC results into RAM with zero CPU overhead during fast transient events. The 512KB Flash accommodates multiple protection routines, soft-start state machines, and PMBus-style communication stacks simultaneously. A typical implementation triggers the ADC at PWM midpoint to reject switching ripple, achieving input-current THD below 5% in PFC stages and tight cross-regulation in multi-output LLC converters for server and telecom power.
Recommended
Solar Inverters and Renewable Energy Conversion
Solar micro-inverters and string-inverter control stages benefit from the GM306's combination of 512KB Flash (for MPPT algorithms, grid codes, and anti-islanding logic) and 30-channel ADC (for simultaneous PV voltage/current, grid voltage, and inverter current sensing). The MCPWM generates the high-frequency DC-DC and line-frequency unfolding stages from one controller, while the CTMU can support panel-level diagnostic measurements. Running MPPT at kilohertz update rates with a 70 MIPS core improves energy harvest under rapidly changing irradiance. Designers should allocate separate analog ground at AVSS/AVDD to keep grid-voltage sampling accurate despite high dv/dt switching, and use the QEI-free I/O for relay and auxiliary control.
Recommended
Automotive Auxiliary Systems
Because the dsPIC33EP512GM306T-I/PT is AEC-Q100 qualified and rated -40C to +85C, it suits automotive auxiliary motor and power functions: electric water pumps, HVAC blowers, throttle actuators, and LED headlamp drivers. The 4 op-amps and 12 MCPWM channels implement sensorless BLDC control for pumps and fans without external analog front ends, reducing board area under-hood. The 512KB Flash supports OBD-style diagnostics and LIN/UART communication layers. For powertrain-critical loops, use the extended-temperature DSPIC33EP512GM306T-E/PT variant instead. Typical designs synchronize ADC sampling to PWM zero vectors and use the on-chip comparators for fast overcurrent shutdown independent of software latency.
Recommended
Capacitive Touch and Embedded Sensing
The integrated CTMU (Charge Time Measurement Unit) turns the GM306 into a capacitive-touch controller without a dedicated touch IC: it measures charge time on touch pads with sub-nanosecond resolution, and the same unit supports precise time-interval and current-source measurements for sensor excitation. Combined with the 4 op-amps and 30-channel ADC, a single chip can scan a touch keypad, read analog sensors, and drive indicators. The 53 I/O pins allow a large touch matrix plus peripheral signals. Firmware-side, 512KB Flash leaves room for drift-compensation and self-calibration libraries. Keep touch pads away from MCPWM routing and use ground guard rings; the CTMU datasheet sections cover charge-sharing scan methods and moisture-tolerance algorithms.
Recommended
Industrial Automation and Motion Coordination
In factory automation, the GM306 coordinates multi-axis motion: its two QEI modules track two encoders simultaneously, 8 input captures timestamp sensor events, and 8 output compares generate precise event outputs, all serviced through DMA to avoid interrupt jitter. UART, SPI, and I2C interfaces connect to motor drivers, absolute encoders, and HMI controllers. The 70 MIPS core runs trajectory planning (trapezoidal/S-curve profiles) and network protocol stacks concurrently, while 512KB Flash holds product-variant configurations. The Pattern Generator (PTG) automates peripheral sequencing for repetitive task sequences offloading the CPU. Use the 10x10 mm TQFP's 0.5 mm lead pitch for reliable wave-free SMT assembly in industrial PCB processes.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33EP512GM306T-I/PT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33EP512GM306-I/PT | DSPIC33EP512GM306T-E/PT | DSPIC33EP512GM306T-I/PF | DSPIC33EP256GM306T-I/MR |
|---|---|---|---|---|---|
| Package | TQFP-64 (10x10) | TQFP-64 (10x10) - same | TQFP-64 (10x10) - same | TQFP-64 thin-profile family | TQFP-64 (10x10) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Program Memory | 512 KB | 512 KB | 512 KB | 512 KB | 256 KB |
| Core Speed | 70 MIPS | 70 MIPS | 70 MIPS | 70 MIPS | 70 MIPS |
| Operating Temperature | -40C to +85C | -40C to +85C | Extended grade (-40C to +125C) | -40C to +85C | -40C to +85C |
| MCPWM Channels | 12 | 12 | 12 | 12 | 12 |
| On-chip Op-Amps | 4 | 4 | 4 | 4 | 4 |
| Qualification | AEC-Q100 | AEC-Q100 | AEC-Q100 | AEC-Q100 | AEC-Q100 |
Key Differentiators
- Maximum program memory in the GM306 64-pin family (vs DSPIC33EP256GM306T-I/MR)
- Extended-temperature sibling available in identical footprint (vs DSPIC33EP512GM306T-E/PT)
- Integrated analog front end reduces BOM (vs DSPIC33EP256GM306T-I/MR)
Design Notes
The GM306 requires a 3.0V to 3.6V supply for full 70 MIPS operation (2.5V-3.6V at reduced FMAX). Estimated: a typical design drawing ~70-100 mA core+I/O current from a 3.3V rail dissipates roughly 0.25-0.33 W in the TQFP-64; the 10x10 package theta_JA of approximately 40 C/W (verify exact value in the packaging section of the datasheet) yields about a 10-13 C junction rise - no heatsink needed, but keep thermal reliefs under the die area with ground vias to the plane.
Decouple every VDD/VSS pair with 0.1 uF ceramic capacitors placed within 2 mm of the pins, plus one bulk 10 uF per power domain. AVDD/AVSS form the analog domain: connect AVDD to the filtered 3.3V rail (ferrite bead plus 1 uF) and star-ground at AVSS to preserve ADC accuracy for current-sensing channels. The TQFP-64 exposed leadframe lacks a thermal pad, so ground stitching vias under the package center aid both thermal and EMI performance.
Pins are Peripheral Remappable (RPn) on the dsPIC33EP family: misconfigured PPS (Peripheral Pin Select) registers are the most common bring-up failure - always unlock (write 0x55/0xAA sequence) before changing PPS mappings. Also, executing from Flash at 70 MIPS requires the compiler-selected wait states (default ECPLL setup in MPLAB X); booting from the wrong oscillator configuration bit can lock the device into a non-functional clock mode requiring a special programming recovery.
Keep MCPWM gate-drive outputs routed away from ADC analog inputs (AN pins shared with op-amp outputs). When sampling phase currents synchronized to PWM, insert a short blanking window (dead-time + a few hundred ns) between switch transitions and ADC sample trigger; the 10/12-bit ADC's sample-and-hold aperture is fast enough to capture switching transients if triggers are not offset. Use twisted pair or differential routing for encoder inputs into the QEI modules.
Compliance Information
AEC-Q100 qualification and series listing confirmed via distributor (pcbelectronics) data. RoHS/lead-free status standard for current-production Microchip TQFP; obtain lot-specific certificates from Microchip.
