DSPIC33EP512GM304-E/PT - 70 MIPS 16-bit DSC, 512KB Flash | Microchip
MPN: DSPIC33EP512GM304-E/PT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $2.38 | $2.38 |
| 10 | $2.2 | $22.00 |
| 100 | $2.05 | $205.00 |
| 500 | $1.95 | $975.00 |
| 1,000 | $1.8 | $1,800.00 |
DSPIC33EP512GM304-E/PT Overview
A digital signal controller combines the computational throughput of a digital signal processor with the peripheral integration and ease of use of a microcontroller. Within the power-management hierarchy, a DSC such as the dsPIC33EP sits above general-purpose MCUs in signal-processing capability, making the dsPIC33E family a common choice wherever real-time control loops must execute DSP-class mathematics, such as fast Fourier transforms, PID control, or field-oriented motor control, at kilohertz loop rates.
Key features of the DSPIC33EP512GM304-E/PT include a dsPIC DSC core operating at 70 MIPS, 12 motor-control PWM (MCPWM) channels, 8 input capture and 8 output compare peripherals, and 2 quadrature encoder interfaces (QEI) for closed-loop motor positioning. Integrated analog includes 4 on-chip operational amplifiers and a Charge Time Measurement Unit (CTMU) for capacitive touch and precise timing measurements.
Technical depth: the device is fabricated in CMOS technology and runs from a single 3.3 V supply. A Peripheral Trigger Generator (PTG) automates peripheral sequencing to offload the CPU, while 4 DMA channels move data without CPU intervention and 5 external interrupt sources support fast event response. The Harvard-architecture 16-bit core with DSP engine provides single-cycle MAC and 40-bit accumulators for high-throughput filtering.
Typical applications include precision brushless DC and PMSM motor control, digital power supplies (switching converters and inverters), and industrial automation sensors and actuators. The four on-chip op-amps reduce external component count in current-sense front ends.
Design consideration: the /PT suffix denotes the 44-pin TQFP tray package and the -E temperature grade supports -40C to +125C operation; ensure the PCB copper area accounts for full-load power dissipation at elevated ambient temperatures.
This page synthesizes distributor pricing, drop-in same-family alternatives, and practical design notes not found in the manufacturer datasheet.
Drop-in alternatives for DSPIC33EP512GM304-E/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-E/PT (same form factor and footprint) — differing in Input Capture / Output Compare, On-chip Operational Amplifiers, Package.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33EP512GM304-I/PT
✅ Drop-In✓ In Stock
$7.6 / Unit
View Datasheet →DSPIC33EP512GM304-E/PF
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33EP256GM304-I/PT
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$2.76 / Unit
View Datasheet →DSPIC33EP128GM304-I/PT
✅ Drop-In✓ In Stock
$4.2 / Unit
View Datasheet →DSPIC33EP512MC304-I/PT
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33EP512GM304-E/PT Maximum Ratings & Electrical Characteristics
| Core Processor | dsPIC33EP 16-bit DSC core |
| Core Size | 16-bit |
| Maximum Speed | 70 MIPS (60 MHz core clock) |
| Program Memory Size | 512 KB (170K x 24) Flash |
| RAM Size | 48 KB (49152 bytes) |
| Supply Voltage | 3.3 V |
| Number of I/O | 35 |
| Motor Control PWM | 12 MCPWM |
| Input Capture / Output Compare | 8 IC / 8 OC |
| Quadrature Encoder Interfaces | 2 QEI |
| On-chip Operational Amplifiers | 4 Op-Amps |
| Charge Time Measurement Unit | CTMU |
| Peripheral Trigger Generator | PTG |
| DMA Channels | 4 |
| External Interrupts | 5 |
| Operating Temperature | -40C to +125C (E grade) |
| Package | 44-pin TQFP, 0.8 mm terminal pitch |
| Mounting Type | Surface Mount |
| Technology | CMOS |
| Packaging | Tray |
| Target Markets | Automotive, Industrial |
DSPIC33EP512GM304-E/PT 44-pin tqfp, 0.8 mm terminal pitch Pin Configuration Guide
Pin configuration for DSPIC33EP512GM304-E/PT (44-pin tqfp, 0.8 mm terminal pitch 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-E/PT.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33EP512GM304-E/PT is suitable for 6 applications: Brushless DC / PMSM Motor Control, Digital Power Supplies and Inverters, Industrial Automation and Sensing, Automotive Auxiliary Systems, Embedded Signal Processing and Measurement, IoT and Smart Sensor Nodes.
Brushless DC / PMSM Motor Control
The DSPIC33EP512GM304-E/PT is purpose-built for precision three-phase motor control: its 12 motor-control PWM (MCPWM) channels generate complementary or independent drives with dead-time insertion, while 2 QEI modules read incremental encoder position at high resolution. The 70 MIPS core executes field-oriented control (FOC) loops at 10-20 kHz with single-cycle MAC math, and the 4 on-chip op-amps condition shunt-resistor current feedback without external amplifiers, cutting BOM cost. In a typical FOC drive, PWM updates, ADC sampling of phase currents, and PI current-loop execution complete within one PWM period; the PTG can trigger ADC conversions automatically from PWM events, keeping loop jitter minimal. The -E grade sustains the -40C to +125C ambient range required by industrial drives and automotive auxiliaries.
Recommended
Digital Power Supplies and Inverters
Switching power supplies, solar micro-inverters, and PFC stages benefit from the DSPIC33EP512GM304-E/PT's combination of high-resolution PWM and fast deterministic control. The 12 MCPWM channels support phase-shifted and interleaved topologies with hardware dead time, while the 70 MIPS pipeline runs voltage-mode or current-mode compensation loops at switching frequencies up to several hundred kHz. The 4 DMA channels stream ADC results to RAM without CPU intervention, preserving timing headroom, and the PTG automates peripheral triggering to reduce software latency. The CTMU supports precision timing measurements used in synchronous-rectifier calibration. Because the controller runs from a single 3.3 V rail, level shifting to gate-driver circuitry is straightforward, and the -E temperature rating covers thermally stressed power-converter enclosures.
Recommended
Industrial Automation and Sensing
In factory automation nodes, the DSPIC33EP512GM304-E/PT acts as a local real-time controller: 35 I/O lines drive actuators, relays, and indicators, while 8 input captures and 5 external interrupt sources respond to sensor events with sub-microsecond latency. The 4 on-chip op-amps amplify strain-gauge, thermocouple, or current-transformer signals before the internal ADC, and the CTMU enables capacitive-touch or time-of-flight measurements for level and proximity sensing. The dual QEI modules decode two rotary encoders simultaneously for multi-axis positioning stations. With 512 KB of Flash, full communication stacks (CAN, UART, SPI, I2C) plus a control algorithm and diagnostic logging coexist in program memory. The extended -40C to +125C rating suits panel-mounted equipment near motors and drives.
Recommended
Automotive Auxiliary Systems
Distributor listings (Jotrin, Jak Electronics) classify the DSPIC33EP512GM304-E/PT for automotive and industrial use, and its -40C to +125C extended grade supports under-hood and high-ambient zones such as headlamp leveling, pump and fan control, throttle actuators, and DC-DC auxiliary converters. The 12 MCPWM channels drive brushed or brushless automotive motors with hardware dead-time protection, and the QEI modules read position from seat, mirror, or flap actuators. The 4 op-amps and internal ADC form compact current-sense front ends for load diagnostics and short-circuit detection. Designers must confirm AEC qualification requirements with Microchip for safety-relevant use, and should implement the CAN stack on the available communication interfaces for networked body and powertrain modules.
Recommended
Embedded Signal Processing and Measurement
The Harvard-architecture 16-bit DSP engine with single-cycle MAC and 40-bit accumulators makes the DSPIC33EP512GM304-E/PT an economical embedded signal-processing node for audio filtering, vibration analysis, and sensor fusion. The 512 KB Flash holds FIR/IIR filter libraries, FFT tables, and calibration data concurrently, while 48 KB of RAM buffers sampled waveforms via the 4 DMA channels. The CTMU provides precise charge-based measurement for capacitive and resistive sensing, and the PTG sequences ADC sampling patterns without CPU load, improving measurement repeatability. Typical products include portable instrumentation, acoustic analyzers, and predictive-maintenance sensor nodes, where the single 3.3 V supply and -40C to +125C range simplify integration into battery-powered or thermally variable environments.
Recommended
IoT and Smart Sensor Nodes
For intelligent edge nodes, the DSPIC33EP512GM304-E/PT combines local DSP computation with multiple communication interfaces (UART, SPI, I2C) to bridge sensors to cloud-connected gateways. The CTMU and on-chip op-amps support capacitive-touch interfaces for panel controls, while 35 I/O lines and 12 PWM channels drive local outputs such as valves, dampers, or LED indicators. The PTG offloads routine sensor-polling sequences so the 70 MIPS core remains available for filtering and protocol handling. Because the device tolerates -40C to +125C, it operates in unconditioned outdoor enclosures and rooftop equipment. Designers should budget a 3.3 V regulated rail and use the ICSP header for field firmware updates, with 512 KB Flash leaving ample room for over-the-air update staging.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33EP512GM304-E/PT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33EP512GM304-I/PT | DSPIC33EP512GM304-E/PF | DSPIC33EP256GM304-I/PT | DSPIC33EP128GM304-I/PT | DSPIC33EP512MC304-I/PT |
|---|---|---|---|---|---|---|
| Package | 44-pin TQFP | 44-pin TQFP - same | 44-pin TQFP - same | 44-pin TQFP - same | 44-pin TQFP - same | 44-pin TQFP - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Memory (Flash) | 512 KB (170K x 24) | 512 KB | 512 KB | 256 KB | 128 KB | 512 KB |
| Core Speed | 70 MIPS | 70 MIPS | 70 MIPS | 70 MIPS | 70 MIPS | 70 MIPS |
| Motor Control PWM | 12 MCPWM | 12 MCPWM | 12 MCPWM | 12 MCPWM | 12 MCPWM | 12 MCPWM |
| Supply Voltage | 3.3 V | 3.3 V | 3.3 V | 3.3 V | 3.3 V | 3.3 V |
| Number of I/O | 35 | 35 | 35 | 35 | 35 | 35 |
Key Differentiators
- Extended -40C to +125C temperature grade in same 44-TQFP footprint (vs DSPIC33EP512GM304-I/PT)
- Four on-chip operational amplifiers reduce analog BOM (vs DSPIC33EP128GM304-I/PT)
- 512 KB Flash headroom for multi-protocol firmware (vs DSPIC33EP256GM304-I/PT)
Design Notes
Decouple each VDD pin pair with a 100 nF ceramic capacitor placed within 3 mm of the pin, plus a single 4.7-10 uF bulk capacitor near the device. The dsPIC33EP core draws transient current spikes at 70 MIPS, especially during flash writes; insufficient decoupling causes brown-out resets. Enable the internal brown-out detector and set the threshold per the 3.3 V supply tolerance in the Microchip family datasheet. Estimated: at 60 MHz with typical loads, core current stays in the tens-of-mA range, so a 500 mA LDO is usually sufficient; verify with your actual I/O loading.
For the 44-TQFP 0.8 mm pitch package, place the crystal within 10 mm of the OSC pins with guard ground traces to reduce jitter on the 70 MIPS PLL clock. Keep analog routing for the op-amp inputs (used for motor current sensing) away from MCPWM switching nets; the on-chip op-amps are moderate-bandwidth parts and injected switching noise degrades current-loop accuracy. Use a solid ground plane under the device and connect the QEI encoder inputs through RC filters sized to the encoder slew rate to reject motor brush noise.
A frequent error is omitting to configure dead-time on the 12 MCPWM channels before enabling complementary outputs, which shoot-throughs the bridge and destroys MOSFETs on the first PWM edge. Also remember that the -E grade (+125C) and -I grade (+85C) parts are footprints-identical but not thermally equivalent: substituting an -I part in a +105C enclosure will violate ratings. When migrating code from smaller dsPIC33EP parts, verify RAM allocation, since the GM304 provides 48 KB and linker scripts differ across family members.
Compliance Information
Distributor listings (Jotrin, Jak Electronics) describe the part as targeting automotive and industrial applications, but formal RoHS/REACH/AEC-Q100 certificates for this exact ordering code were not present in the retrieved web data. Verify certificates on the Microchip product page.
