DSPIC33EP512GM304-H/PT - 70 MIPS 16-Bit DSC 512KB Flash | Microchip
MPN: DSPIC33EP512GM304-H/PT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $10.28 | $10.28 |
| 10 | $9.45 | $94.50 |
| 25 | $8.9 | $222.50 |
| 100 | $8.15 | $815.00 |
| 500 | $7.6 | $3,800.00 |
| 1,000 | $7.1 | $7,100.00 |
DSPIC33EP512GM304-H/PT Overview
A digital signal controller combines the computational architecture of a microcontroller with the numeric acceleration of a digital signal processor. Within the power-management hierarchy of embedded systems, the DSC sits between general-purpose MCUs and dedicated DSPs, making the dsPIC33E family a staple in digital power conversion, motor control, and precision sensing where tight control loops must execute fast multiply-accumulate operations on real-time feedback signals.
Key features of this part include the 70 MIPS dsPIC33E core with integrated DSP engine, 512 KB of self-programmable Flash yielding 170K x 24-bit instruction words, 16 KB of RAM, and rich on-chip analog and timing peripherals. Per distributor specifications (Mouser), the device integrates 8 input capture / 8 output compare channels, 2 quadrature encoder interfaces (QEI), 4 on-chip operational amplifiers, and 12 motor-control PWM channels - a combination purpose-built for sensorless and sensored motor control without external analog front-end components.
Architecturally, the Harvard-architecture dsPIC core executes most instructions in a single cycle at 3.3 V operation. The integrated op-amps can be routed internally to analog comparators and ADC inputs, reducing bill-of-material cost and board area in current-sensing and signal-conditioning paths. The 12-channel motor-control PWM module supports complementary outputs with dead-time insertion for three-phase inverters.
Typical applications include brushless DC and permanent-magnet synchronous motor drives, digital switched-mode power supplies and inverters, automotive body and powertrain subsystems (leveraging AEC-Q100 qualification), and industrial automation equipment requiring deterministic closed-loop control.
When designing with this device, budget for a clean 3.3 V rail with local decoupling and plan pin multiplexing early - the 44-pin package concentrates many peripheral functions on shared pins, so peripheral pin selection must be mapped before layout.
This page synthesizes distributor pricing, drop-in family alternatives, and practical design notes not found in the manufacturer datasheet.
Drop-in alternatives for DSPIC33EP512GM304-H/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 DSPIC33EP512GM304-H/PT (same form factor and footprint) — differing in Core Architecture, Operating Temperature, Program Memory (Flash), Package, Supply Voltage.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33EP512GM304-I/PT
✅ Drop-In✓ In Stock
$7.6 / Unit
View Datasheet →DSPIC33EP256GM304-I/PT
✅ Drop-In✓ In Stock
$2.76 / Unit
View Datasheet →DSPIC33EP128GM304-I/PT
✅ Drop-In✓ In Stock
$4.2 / Unit
View Datasheet →DSPIC33EP256GP504-I/PT
✅ Drop-In✓ In Stock
$3.68 / Unit
View Datasheet →DSPIC33EP256MC504-I/PT
✅ Drop-In✓ In Stock
$4.6 / Unit
View Datasheet →DSPIC33EP32GP504T-I/PT
✅ Drop-In✓ In Stock
$2.15 / Unit
View Datasheet →DSPIC33EP512GM304-H/PT Maximum Ratings & Electrical Characteristics
| Core Architecture | 16-bit dsPIC33E DSC, Harvard |
| Max CPU Speed | 70 MIPS |
| Program Memory (Flash) | 512 KB (170K x 24) |
| RAM | 16 KB |
| Supply Voltage | 3.3 V |
| Package | 44-TQFP (10x10 mm) |
| Pin Count | 44 |
| Mounting Type | Surface Mount |
| Input Capture Channels | 8 |
| Output Compare Channels | 8 |
| Quadrature Encoder Interfaces | 2 |
| On-chip Op-Amps | 4 |
| Motor Control PWM Channels | 12 |
| Automotive Qualification | AEC-Q100 qualified |
| Packaging | Tray |
DSPIC33EP512GM304-H/PT 44-tqfp (10x10 mm) Pin Configuration Guide
Pin configuration for DSPIC33EP512GM304-H/PT (44-tqfp (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 DSPIC33EP512GM304-H/PT.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33EP512GM304-H/PT is suitable for 6 applications: Brushless DC / PMSM Motor Control, Digital Switch-Mode Power Supplies, Automotive Body and Powertrain Subsystems, Industrial Automation and Robotics, Sensor Signal Conditioning and Data Acquisition, Audio Signal Processing and Class-D Amplifiers.
Brushless DC / PMSM Motor Control
The DSPIC33EP512GM304-H/PT is purpose-built for three-phase BLDC and permanent-magnet synchronous motor drives. Its 12 motor-control PWM channels generate complementary outputs with dead-time insertion, the 2 QEI modules decode encoder feedback directly, and the 4 on-chip op-amps amplify shunt-resistor current signals into the ADC, eliminating external analog front-end components. The 70 MIPS DSP core executes field-oriented control (FOC) algorithms with fast MAC operations at control-loop rates of tens of kHz. Placed at the heart of the inverter board with local 3.3 V decoupling, the DSC closes current loops in hardware-timed PWM cycles; the trade-off versus a general-purpose MCU is a steeper DSP toolchain learning curve, repaid by deterministic loop timing and single-chip integration of sensing, communication, and power-stage control.
Recommended
Digital Switch-Mode Power Supplies
In digitally controlled AC-DC and DC-DC converters, the DSPIC33EP512GM304-H/PT replaces analog PWM controllers with firmware-defined control laws. The high-speed 70 MIPS core and single-cycle MAC instructions implement average-current-mode or peak-current-mode control, power-factor correction, and LLC burst-mode algorithms in one device. Its input capture and output compare peripherals provide precise timing of sampling relative to PWM edges, critical for clean current sensing in switch-mode topologies. The AEC-Q100 qualification additionally permits use in automotive onboard chargers and 48 V subsystems. The controller's 512 KB Flash leaves generous room for compensation tables, state machines, and communication stacks; the main consideration is ensuring the ADC sampling-to-PWM-update latency meets the converter's loop bandwidth, which this DSC's architecture is specifically optimized to minimize.
Recommended
Automotive Body and Powertrain Subsystems
The -H/PT suffix variant is categorized as automotive with AEC-Q100 qualification per DigiKey product data, making it suitable for electronically actuated throttle modules, fuel-pump controllers, radiator-fan drives, HVAC blower motors, and gate actuation in vehicles. In these roles the 12 PWM channels drive three-phase or brushed motor stages, the 4 op-amps condition diagnostic current-sense signals, and the 512 KB Flash stores OEM firmware plus failsafe routines. The 44-TQFP (10x10 mm) package suits the board area budgets of body-control modules. Designers should follow Microchip automotive design guidelines for watchdog supervision, voltage-transient hardening (load-dump clamping upstream), and functional-safety documentation when deploying in safety-relevant paths; the DSC's deterministic interrupt architecture supports the fast fault-response times such systems demand.
Recommended
Industrial Automation and Robotics
Factory automation nodes use the DSPIC33EP512GM304-H/PT for servo drives, stepper controllers, and sensor-hub functions. The dual QEI interfaces track two encoder axes simultaneously, enabling dual-motor coordinated motion on a single 44-pin device, while the 70 MIPS core runs position/velocity/current cascaded loops plus trajectory generation in the same controller. The 512 KB Flash accommodates communication stacks (Modbus, CANopen-style fieldbus layers) alongside the control firmware - a decisive advantage over 128 KB-class parts when customers demand protocol-rich products. Board-level integration of the four op-amps reduces cost in multi-channel current and voltage sensing. In robotics applications, the DSC typically pairs with an external CAN transceiver and gate drivers; deterministic interrupt latency of the dsPIC33E core keeps loop-to-loop jitter within the tight tolerances that smooth multi-axis motion requires.
Recommended
Sensor Signal Conditioning and Data Acquisition
The four integrated operational amplifiers make this DSC attractive for multi-channel analog front ends. Strain-gauge bridges, thermocouples, and pressure sensors can be amplified by the internal op-amps and routed to the on-chip ADC, so a single 44-TQFP device performs amplification, digitization, DSP filtering (using the hardware MAC engine for FIR/IIR), and result transmission. The 70 MIPS core sustains sample rates suited to vibration monitoring and dynamic weighing, while 512 KB Flash stores calibration tables and logging buffers in the 16 KB RAM working set. Compared with a discrete op-amp plus generic MCU solution, the integrated analog path cuts component count and PCB area, though designers should verify offset/drift specifications against precision requirements from the family datasheet - for ultra-precision metrology, an external precision amplifier may still be warranted ahead of the internal op-amps.
Recommended
Audio Signal Processing and Class-D Amplifiers
The dsPIC33EP core's DSP engine (single-cycle MAC, dual operand fetch, hardware modulo addressing) executes audio-band filtering, dynamic range compression, and Class-D modulation efficiently at 70 MIPS. In digital Class-D amplifier designs the 12 PWM channels can drive half-bridge and full-bridge power stages with configurable dead-time, while ADC plus op-amp paths handle feedback and input conditioning. The 512 KB Flash supports multi-profile audio firmware (equalization curves, room correction filters) selectable at runtime. AEC-Q100 qualification of the -H variant extends use into automotive audio amplifiers and actuator-acoustic feedback systems. Compared with a dedicated audio DSP, this DSC trades codec-grade THD+N specifications for system-level integration - motor, power, and audio functions share one controller and one firmware toolchain (MPLAB), which simplifies development for cost-sensitive integrated products.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33EP512GM304-H/PT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33EP512GM304-I/PT | DSPIC33EP256GM304-I/PT | DSPIC33EP128GM304-I/PT | DSPIC33EP256GP504-I/PT | DSPIC33EP256MC504-I/PT | DSPIC33EP32GP504T-I/PT |
|---|---|---|---|---|---|---|---|
| Package | 44-TQFP (10x10 mm) | 44-TQFP (10x10 mm) - same | 44-TQFP (10x10 mm) - same | 44-TQFP (10x10 mm) - same | 44-TQFP (10x10 mm) - same | 44-TQFP (10x10 mm) - same | 44-TQFP (10x10 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Program Memory | 512 KB (170K x 24) | 512 KB (170K x 24) | 256 KB | 128 KB | 256 KB | 256 KB | 32 KB |
| Max CPU Speed | 70 MIPS | 70 MIPS | 70 MIPS | 70 MIPS | 70 MIPS | 70 MIPS | 70 MIPS |
| Input Capture / Output Compare | 8 IC / 8 OC | 8 IC / 8 OC | 8 IC / 8 OC | 8 IC / 8 OC | 8 IC / 8 OC | 8 IC / 8 OC | 8 IC / 8 OC |
| Quadrature Encoder Interfaces | 2 | 2 | 2 | 2 | 2 | 2 | 2 |
| On-chip Op-Amps | 4 | 4 | 4 | 4 | 4 | 4 | 4 |
| Supply Voltage | 3.3 V | 3.3 V | 3.3 V | 3.3 V | 3.3 V | 3.3 V | 3.3 V |
Key Differentiators
- Largest program memory in the same 44-TQFP footprint (vs DSPIC33EP128GM304-I/PT)
- GM-series peripheral set with PTG and motor-control emphasis (vs DSPIC33EP256GP504-I/PT)
- Double the Flash of mid-family parts at the same MIPS (vs DSPIC33EP256GM304-I/PT)
Design Notes
Power the DSPIC33EP512GM304-H/PT from a clean 3.3 V rail. Place a 0.1 uF ceramic decoupling capacitor at every VDD/VSS pair plus one bulk capacitor (4.7-10 uF) per the family datasheet power recommendations. If Flash self-programming is used at runtime, maintain a stable VDD within the specified programming voltage window - brown-outs during write cycles can corrupt program memory, so enable the on-chip Brown-out Reset and pair it with an external supervisor if the 3.3 V rail is shared with noisy motor-drive loads.
The 44-TQFP concentrates many peripherals on shared pins and relies on Peripheral Pin Select (PPS) for digital function mapping. Complete the PPS assignment in firmware design before PCB layout, because some analog functions (op-amp inputs, ADC channels) have fixed pin locations while digital functions are mappable. Route motor-control PWM outputs away from the op-amp/ADC input traces; with a 70 MIPS core switching 12 PWM channels, ground bounce on shared analog returns is the most common noise source in first-revision boards. Use a solid ground plane and keep shunt-sense kelvin connections direct to the device pins.
The -H/PT and -I/PT suffixes differ in specified operating environment; verify the exact temperature rating required by your end market before locking the bill of materials - do not assume both suffixes share identical datasheet ranges. Also remember the GM304 family's peripheral sets (op-amps, PTG, CAN configuration) differ from GP/MC siblings even though pinout is compatible: firmware compiled for a GP variant will not automatically expose GM-only peripherals. Finally, dsPIC33E oscillator configuration errors (wrong PLL settings in CONFIG words) are the leading cause of 'dead' first boards - validate clock configuration in MPLAB simulation before fabrication.
When using the four on-chip op-amps for current-shunt amplification, keep the analog supply quiet: sense lines to the op-amp inputs should be differential and as short as possible, and the ADC sampling instant should be synchronized to the PWM waveform (mid-rail or counter-zero trigger) using the family's PWM-triggered ADC conversion capability. This avoids sampling during switching transients of the power stage. Estimated improvement in current-signal noise from synchronized sampling in comparable dsPIC33E motor-control reference designs is substantial versus free-running sampling, and it removes the need for heavy external RC filtering that would narrow the control-loop bandwidth.
Compliance Information
DigiKey categorizes the part as 'dsPIC Automotive, AEC-Q100'. Jotrin lists it as automotive 3.3V 44-pin TQFP. RoHS/lead-free status inferred from current-production surface-mount Microchip tray packaging; REACH and halogen-free status not stated in provided data - confirm via Microchip compliance portal.