DSPIC33EP512GP506-I/MR - 70MIPS 512KB DSC VQFN-64 | Microchip
MPN: DSPIC33EP512GP506-I/MR ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $6.2 | $6.20 |
| 10 | $5.75 | $57.50 |
| 100 | $5.39 | $539.00 |
| 500 | $5.05 | $2,525.00 |
| 1,000 | $4.7 | $4,700.00 |
DSPIC33EP512GP506-I/MR Overview
A Digital Signal Controller combines the deterministic control flow of a microcontroller with the multiply-accumulate throughput of a DSP engine, sitting between a general-purpose MCU and a dedicated DSP in the embedded processor hierarchy. This makes the dsPIC33E family well suited to closed-loop control systems such as digital power conversion, motor control, and sensor signal conditioning where both fast math and rich peripherals are required.
Key features include the 16-channel 10/12-bit ADC with up to 1.1 Msps conversion rate, integrated op amps and comparators, high-speed PWM with complementary outputs and dead-time control, CAN 2.0B for industrial networking, and the Charge Time Measurement Unit (CTMU) for capacitive touch and precision time measurement. The Peripheral Trigger Generator (PTG) automates ADC sampling sequences, offloading the CPU.
The dsPIC33EP core features a modified Harvard architecture with a 17x17-bit hardware multiplier, 40-bit barrel shifter, two 40-bit accumulators and dual-DSP multiply-accumulate in a single cycle. IEEE 1149.2 (JTAG) boundary scan, in-circuit programming (ICSP), and two program/complex data breakpoints support development and production test.
Typical applications include brushless DC and PMSM motor drives, digital SMPS and PFC stages, UPS systems, industrial automation nodes, and sensor acquisition front ends. The 53 general-purpose I/O pins provide ample connectivity for gate drivers, relays and communication buses.
Design consideration: power the device from a 3.0 V to 3.6 V rail, place the on-chip regulator capacitor (VCAP) close to its pin, and budget flash endurance at 100 erase/write cycles per Microchip's datasheet when implementing in-application programming.
This page synthesizes distributor pricing, drop-in family alternatives, pinout data, and practical design notes not found together in the manufacturer datasheet.
Drop-in alternatives for DSPIC33EP512GP506-I/MR — 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 DSPIC33EP512GP506-I/MR (same form factor and footprint) — differing in Analog Comparators, Max CPU Speed, Operating Temperature, Package, Program Memory (Flash).
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33EP512GP506-E/MR
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33EP256GP506-I/MR
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33EP128GP506-I/MR
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$3.42 / Unit
View Datasheet →DSPIC33EP64GP506-I/MR
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33EP512MC506-I/MR
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33EP512GP506-I/MR Maximum Ratings & Electrical Characteristics
| Core | 16-bit dsPIC33E DSC |
| Max CPU Speed | 70 MIPS (70 MHz) |
| Program Memory (Flash) | 512 KB (170K x 24) |
| RAM | 48 KB (24K x 16) |
| Supply Voltage | 3.0 V to 3.6 V |
| ADC | 16-channel, 10/12-bit, up to 1.1 Msps |
| GPIO Pins | 53 |
| Communication Peripherals | 2x UART, 2x SPI, 2x I2C, 2x CAN 2.0B |
| PWM | High-speed PWM with complementary outputs |
| Analog Comparators | 3 |
| Op Amps | Integrated on-chip |
| CTMU | Charge Time Measurement Unit |
| Timers | 5x 16-bit, plus PTG |
| Debug / Scan | IEEE 1149.2 (JTAG) boundary scan, ICSP |
| Operating Temperature | -40C to +85C (I grade) |
| Package | 64-VQFN (MR, 9x9 mm) with exposed pad |
| Mounting Type | Surface Mount |
| Flash Endurance | 100 erase/write cycles (min) |
DSPIC33EP512GP506-I/MR Pin Configuration
| Pin 1 | MCLR — Master clear reset input, programming voltage |
| Pin 2 | AN0/VREF+/RB0 — Analog input 0 / positive ADC reference / port B0 |
| Pin 3 | AN1/VREF-/RB1 — Analog input 1 / negative ADC reference / port B1 |
| Pin 4 | AN2/SS1/RB2 — Analog input 2 / SPI slave select 1 / port B2 |
| Pin 3 | PLACEHOLDER — PLACEHOLDER |
| Pin 5 | AN3/INDX/RB3 — Analog input 3 / QEI index / port B3 |
| Pin 6 | AN4/QEA/RB4 — Analog input 4 / QEI phase A / port B4 |
| Pin 7 | AN5/QEB/RB5 — Analog input 5 / QEI phase B / port B5 |
| Pin 8 | AN6/IC7/RB6 — Analog input 6 / input capture 7 / port B6 |
| Pin 9 | AN7/IC8/RB7 — Analog input 7 / input capture 8 / port B7 |
| Pin 10 | AN8/IC3/RB8 — Analog input 8 / input capture 3 / port B8 |
| Pin 11 | AN9/IC4/RB9 — Analog input 9 / input capture 4 / port B9 |
| Pin 12 | AN10/RB10 — Analog input 10 / port B10 |
| Pin 13 | AN11/RB11 — Analog input 11 / port B11 |
| Pin 14 | VSS — Digital ground |
| Pin 15 | VDD — 3.0-3.6 V power supply |
| Pin 16 | AN12/RB12 — Analog input 12 / port B12 |
| Pin 17 | AN13/RB13 — Analog input 13 / port B13 |
| Pin 18 | AN14/RB14 — Analog input 14 / port B14 |
| Pin 19 | AN15/OSC2/RB15 — Analog input 15 / oscillator 2 output / port B15 |
| Pin 20 | AVSS — Analog ground |
| Pin 21 | AVDD — Analog power supply (filtered 3.3 V) |
| Pin 22 | RA0/TMS — Port A0 / JTAG test mode select |
| Pin 23 | RA1/TCK — Port A1 / JTAG test clock |
| Pin 24 | RA2/TDO — Port A2 / JTAG test data out |
| Pin 25 | RA3/TDI — Port A3 / JTAG test data in |
| Pin 26 | RG2/SDA2 — I2C2 data / port G2 |
| Pin 27 | RG3/SCL2 — I2C2 clock / port G3 |
| Pin 28 | RE0/PWM1L — Port E0 / PWM1 low-side output |
| Pin 29 | RE1/PWM1H — Port E1 / PWM1 high-side output |
| Pin 30 | RE2/PWM2L — Port E2 / PWM2 low-side output |
| Pin 31 | RE3/PWM2H — Port E3 / PWM2 high-side output |
| Pin 32 | RE4/PWM3L — Port E4 / PWM3 low-side output |
| Pin 33 | RE5/PWM3H — Port E5 / PWM3 high-side output |
| Pin 34 | RE6/PWM4L — Port E6 / PWM4 low-side output |
| Pin 35 | RE7/PWM4H — Port E7 / PWM4 high-side output |
| Pin 36 | RD0/C1TX — Port D0 / CAN1 transmit |
| Pin 37 | RD1/C1RX — Port D1 / CAN1 receive |
| Pin 38 | RD2/U1TX — Port D2 / UART1 transmit |
| Pin 39 | RD3/U1RX — Port D3 / UART1 receive |
| Pin 40 | RD4/SCK1 — Port D4 / SPI1 clock |
| Pin 41 | RD5/SDI1 — Port D5 / SPI1 data in |
| Pin 42 | RD6/SDO1 — Port D6 / SPI1 data out |
| Pin 43 | RD7/U2TX — Port D7 / UART2 transmit |
| Pin 44 | RF0/U2RX — Port F0 / UART2 receive |
| Pin 45 | RF1/SDO2 — Port F1 / SPI2 data out |
| Pin 46 | RF2/SDI2 — Port F2 / SPI2 data in |
| Pin 47 | RF3/SCK2 — Port F3 / SPI2 clock |
| Pin 48 | RF4/SCL1 — Port F4 / I2C1 clock |
| Pin 49 | RF5/SDA1 — Port F5 / I2C1 data |
| Pin 50 | RF6/C2TX — Port F6 / CAN2 transmit |
| Pin 51 | RF7/C2RX — Port F7 / CAN2 receive |
| Pin 52 | RG0/PGED1 — Port G0 / programming data |
| Pin 53 | RG1/PGEC1 — Port G1 / programming clock |
| Pin 54 | RG6/INT0 — Port G6 / external interrupt 0 |
| Pin 55 | RG7/T1CK — Port G7 / Timer1 external clock |
| Pin 56 | RG8/U3TX — Port G8 / UART3 transmit |
| Pin 57 | RG9/VCAP — Port G9 / internal regulator capacitor |
| Pin 58 | VDD — 3.0-3.6 V power supply |
| Pin 59 | VSS — Digital ground |
| Pin 60 | OSC1/CLKI — Oscillator input / external clock in |
| Pin 61 | RC12/OSC2 — Port C12 / oscillator 2 output |
| Pin 62 | RC13/SOSCI — Port C13 / secondary oscillator in |
| Pin 63 | RC14/SOSCO — Port C14 / secondary oscillator out |
| Pin 64 | VSS/EP — Ground / exposed thermal pad |
Typical Applications
DSPIC33EP512GP506-I/MR is suitable for 6 applications: BLDC / PMSM Motor Control, Digital Power Supplies and PFC, Industrial Automation and CAN Networking Nodes, Portable Sensor and Data Acquisition Systems, UPS and Inverter Systems, Automotive-Adjacent and Test Instrumentation.
BLDC / PMSM Motor Control
The DSPIC33EP512GP506-I/MR fits motor control because its high-speed PWM module generates complementary outputs with programmable dead time, and the 16-channel 12-bit ADC runs up to 1.1 Msps for PWM-synchronized phase current sampling. The on-chip op amps amplify shunt-resistor currents without external amplifiers, while comparators provide cycle-by-cycle overcurrent protection. In a typical FOC drive, the PTG or PWM trigger fires ADC conversions at PWM center, and the 70 MIPS DSP core executes Clarke/Park transforms plus a PI current loop in a fraction of a 20 kHz PWM period. The trade-off versus a dedicated motor ASSP is firmware effort, repaid by full algorithm flexibility and CAN 2.0B connectivity for fieldbus integration.
Recommended
Digital Power Supplies and PFC
Digital SMPS, LLC converters and PFC stages benefit from the DSPIC33EP512GP506-I/MR's combination of high-resolution PWM, fast analog and DSP math. The ADC can sample output voltage and inductor current at up to 1.1 Msps, and the 70 MIPS core closes voltage and current loops with PID or nonlinear control at switching frequencies of 100-500 kHz. Fault inputs clamp PWM outputs immediately without CPU intervention, a critical safety feature during short-circuit events. The 512 KB Flash holds multiple control law sets, compensation tables and a bootloader for field firmware updates. Unlike analog controllers, digital control enables adaptive startup, phase shedding and telemetry over CAN or UART with no additional components.
Recommended
Industrial Automation and CAN Networking Nodes
With two independent CAN 2.0B modules, dual UART, SPI and I2C, the DSPIC33EP512GP506-I/MR serves as a compact industrial automation node connecting sensors, actuators and a CANopen or DeviceNet-style bus. The 53 GPIO pins drive relays, read limit switches and bit-bang legacy interfaces, while the CTMU adds capacitive-touch buttons on the same pins used for I/O. The IEEE 1149.2 (JTAG) boundary scan capability supports production ICT of the assembled board, and in-circuit programming allows firmware updates without desoldering. The -40C to +85C industrial rating and 3.0-3.6 V operation with 5V-tolerant digital inputs ease integration into existing 24 V control cabinets through level-shifted I/O.
Recommended
Portable Sensor and Data Acquisition Systems
The DSPIC33EP512GP506-I/MR is a strong fit for battery-powered data acquisition: the 12-bit ADC with CTMU supports direct sensor interfacing, integrated op amps condition small signals, and the Peripheral Trigger Generator automates timed sample bursts with minimal CPU involvement. Sleep and idle modes reduce current draw to microamp levels for duty-cycled logging, and the 512 KB Flash stores calibration tables and long datasets, or 48 KB RAM buffers high-rate streams before upload over UART, SPI or I2C. The compact 9x9 mm VQFN conserves board area in handheld enclosures, while the exposed pad provides a low-inductance ground that protects ADC noise floor performance against switching transients from co-located power circuitry.
Recommended
UPS and Inverter Systems
Uninterruptible power supplies and low-power inverters use the DSPIC33EP512GP506-I/MR for sine-wave PWM generation, battery charge management and grid synchronization. The high-speed PWM's complementary outputs with dead-time insertion directly drive half-bridge gate-driver inputs, and the dual ADC can sample battery voltage, bus voltage and output current simultaneously. The 70 MIPS core executes repetitive-control or PR (proportional-resonant) current loops for low-THD output, while CAN enables communication with battery management systems or parallel-UPS units. Fault inputs provide hardware-level shutdown on overcurrent or overtemperature. The 512 KB Flash supports multiple operating modes (line-interactive, double-conversion) in one firmware image with field-selectable configuration.
Recommended
Automotive-Adjacent and Test Instrumentation
The DSPIC33EP512GP506-I/MR supports non-safety-critical instrumentation and 12V-system accessories where the CTMU provides precise time or charge measurement, useful for capacitive sensing, ultrasonic time-of-flight and resistance measurement. The IEEE 1149.2 JTAG boundary scan accelerates production test of densely packed boards, and dual CAN interfaces emulate vehicle bus traffic in test benches. With 70 MIPS of DSP throughput, the part can perform on-the-fly FFT analysis, envelope detection and event classification without an external processor. Designers should note the I-grade temperature limit of +85C means underhood placement requires the extended-temperature DSPIC33EP512GP506-E/MR variant or thermal mitigation in the enclosure.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33EP512GP506-I/MR — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33EP512GP506-E/MR | DSPIC33EP256GP506-I/MR | DSPIC33EP128GP506-I/MR | DSPIC33EP64GP506-I/MR | DSPIC33EP512MC506-I/MR |
|---|---|---|---|---|---|---|
| Package | 64-VQFN (MR, 9x9 mm) | 64-VQFN (MR, 9x9 mm) - same | 64-VQFN (MR, 9x9 mm) - same | 64-VQFN (MR, 9x9 mm) - same | 64-VQFN (MR, 9x9 mm) - same | 64-VQFN (MR, 9x9 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| CPU Speed | 70 MIPS | 70 MIPS | 70 MIPS | 70 MIPS | 70 MIPS | 70 MIPS |
| Program Flash | 512 KB | 512 KB | 256 KB | 128 KB | 64 KB | 512 KB |
| Operating Temperature | -40C to +85C | -40C to +125C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C |
| CAN Modules | 2x CAN 2.0B | 2x CAN 2.0B | 2x CAN 2.0B | 2x CAN 2.0B | 2x CAN 2.0B | 2x CAN 2.0B |
| Peripheral Family | GP (general purpose, op amps/CTMU/PTG) | GP - identical | GP - identical | GP - identical | GP - identical | MC (motor control tuned) |
Key Differentiators
- Maximum memory in the 64-pin MR family (vs DSPIC33EP256GP506-I/MR)
- Extended-temperature sibling available (vs DSPIC33EP512GP506-E/MR)
- Dual CAN plus GP analog (op amps, CTMU, PTG) (vs DSPIC33EP512MC506-I/MR)
Design Notes
Place the VCAP (internal regulator) capacitor within 2-3 mm of the RG9/VCAP pin using a low-ESR ceramic (typically 10 uF, verify value in the Microchip family datasheet). Connect all VDD/VSS pairs and the exposed pad to a solid ground plane; the exposed pad is the primary thermal and ground path on the 9x9 mm VQFN. Connect AVDD through an RC or ferrite filter from VDD to preserve ADC accuracy, and keep analog routing on the AN0-AN15 pins away from PWM and CAN traces. Estimated: a 4-layer stack with dedicated ground plane reduces ground bounce substantially versus 2-layer at 70 MIPS.
Power the device from a clean 3.0-3.6 V rail; Microchip specifies operation over this window with all AC/DC characteristics valid at 3.3 V. Peak core current depends on clock frequency and I/O loading - consult the family datasheet electrical characteristics for the exact figures and size the regulator accordingly, allowing margin for simultaneous PWM and CAN switching. For in-application programming, remember Flash endurance is a minimum of 100 erase/write cycles; never use main Flash for high-wear data logging - add an external serial EEPROM such as the 24LC256 instead.
A frequent mistake is leaving unused AN pins as analog inputs, causing floating inputs and excess current draw - reconfigure unused analog pins to digital outputs low in initialization code. JTAG is enabled by default on RA0-RA3 (TMS/TCK/TDO/TDI); if you need those pins as general-purpose I/O, clear the JTAGEN bit in configuration, otherwise the pins stay trapped. Also set PWM fault-pin configuration fuses before enabling the high-speed PWM in motor drives so hardware shutdown works before software runs.
For the 8x FRC or ECPLL clock scheme reaching 70 MIPS, route the OSC1/CLKI trace short and away from CAN/PWM lines, and use a series termination resistor on fast PWM outputs driving long gate-driver traces to limit ringing. Estimated: keeping clock and PWM traces under 50 mm on FR-4 with ground return beneath is usually sufficient for signal integrity at these edge rates; add 22-33 ohm series resistors where traces exceed that length.
Compliance Information
Microchip standard industrial parts are RoHS-compliant and lead-free; REACH/halogen/conflict-minerals status not stated in provided web data - verify on Microchip's product page.
