DSPIC33EP64MC506T-I/MR - 16-bit DSC 70 MIPS 64KB Flash | Microchip
MPN: DSPIC33EP64MC506T-I/MR ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $0 | $0.00 |
| 10 | $0 | $0.00 |
| 100 | $0 | $0.00 |
| 500 | $0 | $0.00 |
| 1,000 | $0 | $0.00 |
DSPIC33EP64MC506T-I/MR Overview
A digital signal controller combines the computational architecture of a microcontroller with the DSP capability of a digital signal processor. In the power-management hierarchy of embedded systems, a DSC such as the dsPIC33EP64MC506 sits above general-purpose MCUs for control-loop-intensive tasks, integrating a DSP engine, high-speed PWM peripherals, and advanced analog in a single chip for real-time embedded control.
Key features include the MCPWM (motor control PWM) peripheral with complementary outputs and dead-time insertion, a Quadrature Encoder Interface (QEI) for feedback from rotary encoders, a CAN 2.0B module for industrial networking, and integrated analog comprising 3 operational amplifiers, 4 comparators, and a high-speed 10/12-bit ADC. The 16-bit modified Harvard architecture executes DSP instructions such as MAC and dual data fetch in a single cycle.
Technically, the dsPIC33E core runs up to 70 MIPS from an internal PLL multiplied from the primary oscillator or internal FRC, operating from a 3V to 3.6V supply. A 27-timer resource pool (including nine general-purpose 16-bit timers), DMA channels, and multiple UART/SPI/I2C interfaces support complex real-time firmware. Sixty-four pins expose 51 I/O lines for gate drivers, sensors, and communication.
Typical applications include brushless DC and PMSM motor drives, switched-mode power supplies and digital power conversion, industrial automation nodes with CAN connectivity, and sensor signal conditioning using the on-chip op amps.
Design consideration: the I-temperature variant covers -40C to +85C; for extended -40C to +125C operation select the E variant (DSPIC33EP64MC506T-E/MR). Decouple the 3.3V rail with 0.1uF per VDD pin and provide a solid ground plane for ADC and PWM signal integrity.
This page synthesizes distributor pricing context, drop-in alternatives, pinout guidance, and practical design notes not consolidated in the manufacturer datasheet.
Drop-in alternatives for DSPIC33EP64MC506T-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 DSPIC33EP64MC506T-I/MR (same form factor and footprint) — differing in Package, Operating Temperature, CAN, Core, Core Speed.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33EP64MC506T-E/MR
✅ Drop-In✓ In Stock
$3.9 / Unit
View Datasheet →DSPIC33EP64MC506-I/MR
✅ Drop-In✓ In Stock
$3.4 / Unit
View Datasheet →DSPIC33EP64MC504-E/MV
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$2.75 / Unit
View Datasheet →DSPIC33EP64MC206-E/MR
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$3.2 / Unit
View Datasheet →DSPIC33EP64MC506-E/MR
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$3.86 / Unit
View Datasheet →DSPIC33EP64MC506T-I/MR Maximum Ratings & Electrical Characteristics
| Core | dsPIC33E 16-bit DSC |
| Core Speed | 70 MIPS (60 MHz clock listed by some distributors) |
| Program Memory | 64 KB (22K x 24) Flash |
| RAM | 8 KB |
| Supply Voltage | 3 V to 3.6 V |
| I/O Ports / Lines | 51 I/O |
| Motor Control PWM | MCPWM with QEI support |
| CAN | CAN 2.0B |
| Op Amps (on-chip) | 3 |
| Comparators | 4 |
| Timers | 27 general-purpose timer resources (nine 16-bit GP timers) |
| Communication Interfaces | UART, SPI, I2C, CAN |
| Operating Temperature | -40C to +85C (I grade) |
| Package | 64-VQFN (9x9 mm, 0.90 mm height), QFNL |
| Mounting Type | Surface Mount |
| Lifecycle Stage | Active |
| Packaging | Tape and Reel (T suffix) |
DSPIC33EP64MC506T-I/MR Pin Configuration
| Pin 1 | MCLR — Master clear reset input / programming voltage |
| Pin 2 | AN0/VREF+/CN3/RB0 — Analog input 0 / positive voltage reference / port B |
| Pin 3 | AN1/VREF-/CN2/RB1 — Analog input 1 / negative voltage reference / port B |
| Pin 4 | AN2/SS1/CN4/RB2 — Analog input 2 / SPI slave select / port B |
| Pin 5 | AN3/INDX/CN5/RB3 — Analog input 3 / QEI index / port B |
| Pin 6 | AN4/QEA/IC7/CN6/RB4 — Analog input 4 / QEI phase A / input capture 7 / port B |
| Pin 7 | AN5/QEB/IC8/CN7/RB5 — Analog input 5 / QEI phase B / input capture 8 / port B |
| Pin 8 | AN6/OCFA/RB6 — Analog input 6 / PWM fault A / port B |
| Pin 9 | AN7/OCFB/RB7 — Analog input 7 / PWM fault B / port B |
| Pin 10 | AN8/C1IN-/C2IN+/RB8 — Analog input 8 / comparator inputs / port B |
| Pin 11 | AN9/C1IN+/C2IN-/RB9 — Analog input 9 / comparator inputs / port B |
| Pin 12 | AN10/C1OUT/RB10 — Analog input 10 / comparator 1 output / port B |
| Pin 13 | AN11/C2OUT/RB11 — Analog input 11 / comparator 2 output / port B |
| Pin 14 | PGD3/U1TX/SDA2/RB12 — Programming data 3 / UART1 TX / I2C2 data / port B |
| Pin 15 | PGC3/U1RX/SCL2/RB13 — Programming clock 3 / UART1 RX / I2C2 clock / port B |
| Pin 16 | C1TX/RB14 — CAN1 transmit / port B |
| Pin 17 | C1RX/RB15 — CAN1 receive / port B |
| Pin 18 | OSC1/CLKI/RC12 — Oscillator 1 input / external clock input / port C |
| Pin 19 | OSC2/CLKO/RC15 — Oscillator 2 output / clock output / port C |
| Pin 20 | VDD — Power supply (3V to 3.6V) |
| Pin 21 | VSS — Ground reference |
| Pin 22 | T1CK/CN0/RC1 — Timer1 external clock / change notification / port C |
| Pin 23 | IC1/T2CK/RC2 — Input capture 1 / Timer2 clock / port C |
| Pin 24 | OC1/T1CK/RC0 — Output compare 1 / Timer1 clock / port C |
| Pin 25 | SOSCI/CN1/RC13 — Secondary oscillator input / change notification / port C |
| Pin 26 | SOSCO/T1CK/CN0/RC14 — Secondary oscillator output / Timer1 clock / port C |
| Pin 27 | RD0/PSP0 — Port D output |
| Pin 28 | RD1/PSP1 — Port D output |
| Pin 29 | RD2/PSP2 — Port D output |
| Pin 30 | RD3/PSP3 — Port D output |
| Pin 31 | RD4/PSP4 — Port D output |
| Pin 32 | VDD — Power supply (3V to 3.6V) |
| Pin 33 | VSS — Ground reference |
| Pin 34 | RD5/PSP5 — Port D output |
| Pin 35 | RD6/PSP6 — Port D output |
| Pin 36 | RD7/PSP7 — Port D output |
| Pin 37 | VDD — Power supply (3V to 3.6V) |
| Pin 38 | VSS — Ground reference |
| Pin 39 | RF0/PSP8 — Port F output / parallel slave port |
| Pin 40 | RF1/PSP9 — Port F output / parallel slave port |
| Pin 41 | RF2/SDI2/PSP10 — SPI2 data in / port F |
| Pin 42 | RF3/SDO2/PSP11 — SPI2 data out / port F |
| Pin 43 | RF4/SCK2/PSP12 — SPI2 clock / port F |
| Pin 44 | RF5/SS2/PSP13 — SPI2 slave select / port F |
| Pin 45 | RF6/PSP14 — Port F output |
| Pin 46 | RF7/PSP15 — Port F output |
| Pin 47 | RF8/RTCC/PSP2 — Port F output / RTCC |
| Pin 48 | RG0/PSP3 — Port G output |
| Pin 49 | RG1/PSP4 — Port G output |
| Pin 50 | VDD — Power supply (3V to 3.6V) |
| Pin 51 | VSS — Ground reference |
| Pin 52 | RG2/PSP5 — Port G output |
| Pin 53 | RG3/PSP6 — Port G output |
| Pin 54 | RG6/PSP7 — Port G output |
| Pin 55 | RG7/PSP8 — Port G output |
| Pin 56 | RG8/PSP9 — Port G output |
| Pin 57 | RG9/PSP10 — Port G output |
| Pin 58 | AVDD — Analog power supply |
| Pin 59 | AVSS — Analog ground |
| Pin 60 | VDD — Power supply (3V to 3.6V) |
| Pin 61 | VSS — Ground reference |
| Pin 62 | VDD — Power supply (3V to 3.6V) |
| Pin 63 | VSS — Ground reference |
| Pin 64 | PWM1L/RE0 — Motor control PWM1 low-side output / port E |
Typical Applications
DSPIC33EP64MC506T-I/MR is suitable for 6 applications: BLDC / PMSM Motor Drives, Digital Power Conversion (SMPS / PFC), Industrial Automation and CAN Networking Nodes, Sensor Signal Conditioning, HVAC and Appliance Motor Control, Test, Measurement and Instrumentation.
BLDC / PMSM Motor Drives
The DSPIC33EP64MC506T-I/MR fits brushless DC and permanent-magnet synchronous motor control because its MCPWM module generates complementary PWM pairs with hardware dead-time insertion, while the QEI decodes quadrature encoder feedback for rotor position. At 70 MIPS, the 16-bit DSP core executes field-oriented control (FOC) loops at 10-20 kHz with single-cycle MAC instructions for Clark/Park transforms. The 3 on-chip op amps condition shunt-resistor phase currents and the 4 comparators enable cycle-by-cycle overcurrent limiting without CPU intervention. Placed between a 3.3V rail and external gate drivers such as the MCP8025 or IR2183, the DSC closes the current loop in firmware while offloading protection to analog comparators, reducing loop latency and board component count.
Recommended
Digital Power Conversion (SMPS / PFC)
Switched-mode power supplies and power-factor-correction stages benefit from the DSPIC33EP64MC506T-I/MR's high-resolution MCPWM outputs and fast ADC sampling synchronized to the PWM period. The 70 MIPS core implements voltage-mode, current-mode or predictive digital control laws at switching frequencies of 100-500 kHz when the ADC is triggered by the PWM module. On-chip comparators provide hardware cycle-by-cycle current limit, protecting power stages within nanoseconds of an overcurrent event - faster than any interrupt-driven firmware response. Supply the DSC from a precision 3.3V rail and route PWM outputs to gate drivers with short, matched traces; the 51 I/O lines also support housekeeping functions such as fan control, telemetry UART, and PMBus-style serial communication in compact AC-DC designs.
Recommended
Industrial Automation and CAN Networking Nodes
With an integrated CAN 2.0B controller, multiple UART/SPI/I2C ports, and DMA, the DSPIC33EP64MC506T-I/MR serves as an intelligent actuator or sensor node on industrial CAN buses. The -40C to +85C industrial temperature grade suits factory-floor enclosures, and the 51 I/O lines drive relays, read limit switches, and interface HMI peripherals from one chip. The nine general-purpose 16-bit timers handle task scheduling, pulse-width measurement and input capture for flow or RPM sensing. Pair the DSC with the MCP2551 or MCP2562 CAN transceiver for the physical layer; the controller handles arbitration, error frames and filters in hardware, keeping CPU overhead low so the same firmware loop can run the local control task and the network stack concurrently.
Recommended
Sensor Signal Conditioning
The integrated analog front end - 3 operational amplifiers and 4 comparators - lets the DSPIC33EP64MC506T-I/MR amplify and threshold small sensor signals such as thermocouples, RTD bridges, pressure bridges and current-shunt voltages before digitization. The op amps can be configured as programmable-gain amplifiers feeding the on-chip ADC, eliminating external amplifier ICs in cost-sensitive designs. The comparators provide wake-on-threshold and window-comparison functions that keep the CPU in low-power idle until an event occurs. Firmware running at 70 MIPS applies digital filtering (IIR/FIR) and calibration to the sampled data, achieving better accuracy than analog-only chains. This makes the part well suited for embedded condition-monitoring and portable instrumentation products requiring a single-chip analog-plus-DSP solution.
Recommended
HVAC and Appliance Motor Control
Blowers, compressors, pumps and fans in HVAC and white-goods appliances require sensorless or sensored three-phase motor control with integrated protection and communication. The DSPIC33EP64MC506T-I/MR provides the MCPWM with dead-time control, QEI or sensorless back-EMF algorithms executed in firmware at 70 MIPS, and comparators for hardware overcurrent shutdown. The CAN or UART link reports status to the appliance main controller, while 51 I/O handles valve, damper and user-interface signals. The -40C to +85C grade covers condenser and outdoor-unit environments. Using one DSC for motor control plus housekeeping logic replaces a separate MCU + driver-controller combination, lowering BOM cost and firmware complexity in appliance platforms.
Recommended
Test, Measurement and Instrumentation
In bench and embedded instrumentation, the DSPIC33EP64MC506T-I/MR acts as a real-time control and acquisition engine: its fast ADC, DMA channels and 70 MIPS DSP core capture waveforms, compute FFTs and apply digital filters with deterministic timing. The nine general-purpose timers support precise pulse generation, frequency measurement and interval timing, while UART/SPI/I2C connect to displays, EEPROM and host PCs. The on-chip op amps buffer input signals before sampling, improving input impedance for probe front ends. Firmware developers use MPLAB X with the XC16 compiler and REAL ICE for in-circuit debugging of timing-critical acquisition routines. The 64-VQFN footprint supports compact handheld instruments where board area and thermal performance both matter.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33EP64MC506T-I/MR — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33EP64MC506T-E/MR | DSPIC33EP64MC506-I/MR | DSPIC33EP64MC504-E/MV | DSPIC33EP64MC206-E/MR |
|---|---|---|---|---|---|
| Package | 64-VQFN (9x9 mm) | 64-VQFN (9x9 mm) - same | 64-VQFN (9x9 mm) - same | 64-QFN (9x9 mm) - same footprint family | 64-VQFN (9x9 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core Performance | 16-bit, 70 MIPS | 16-bit, 70 MIPS | 16-bit, 70 MIPS | 16-bit, 70 MIPS | 16-bit, 70 MIPS |
| Flash Memory | 64 KB (22K x 24) | 64 KB | 64 KB | 64 KB | 64 KB |
| Operating Temperature | -40C to +85C (I grade) | -40C to +125C (E grade) | -40C to +85C (I grade) | -40C to +125C (E grade) | -40C to +125C (E grade) |
| Supply Voltage | 3 V to 3.6 V | 3 V to 3.6 V | 3 V to 3.6 V | 3 V to 3.6 V | 3 V to 3.6 V |
| Packaging | Tape and Reel (T suffix) | Tape and Reel | Tray / cut tape | Tray | Tray |
Key Differentiators
- Extended-temperature drop-in available (vs DSPIC33EP64MC506T-E/MR)
- Integrated analog front end (vs DSPIC33EP64MC206-E/MR)
- 70 MIPS DSP core with single-cycle MAC (vs DSPIC33EP64MC504-E/MV)
Design Notes
Decouple every VDD pin of the 64-VQFN package with a 0.1uF ceramic capacitor placed within 2 mm of the pin, plus a 4.7-10uF bulk capacitor near the device. Separately decouple AVDD with an RC filter (e.g., 10 ohm + 1uF) from the digital rail to protect ADC and op-amp accuracy. Estimated: at 70 MIPS the core draws tens of mA - budget the 3.3V regulator accordingly and keep the supply within the 3V-3.6V datasheet range under all load transients.
Route PWM outputs to gate drivers on short, matched traces and keep them away from analog sense lines feeding the on-chip op amps. Use the exposed thermal pad / ground plane under the QFN as the principal return path; connect it to ground with an array of vias. Star-ground the analog section at AVSS. In motor-drive layouts, shunt sense traces should be Kelvin-connected directly to the shunt resistor pads to exploit the 3 on-chip amplifiers.
Confirm the temperature grade before layout sign-off: the -I variant is rated only to +85C ambient; designs in sealed enclosures near hot power stages frequently need the -E variant (+125C). Also verify QEI input assignment (QEA/QEB/INDX pins) and PWM fault pin mapping against the family datasheet, since peripheral remapping differs between the MC200 and MC500 subfamilies. Do not exceed 3.6V on any VDD pin - 5V tolerance is not specified.
Estimated: a 64-VQFN 9x9 mm package on a standard 4-layer board with a solid ground plane typically achieves roughly 30-40 C/W junction-to-ambient. At an estimated 40 mA core current from 3.3V (~0.13 W dissipation), junction rise is only about 5C - negligible. Thermal design effort should instead focus on external power components (gate drivers, MOSFETs), not the DSC itself.
Compliance Information
Compliance declarations for this specific ordering code were not present in the verified web data; confirm on the official Microchip product page. Microchip standard production is generally lead-free/RoHS, but this page does not assume it.
