DSPIC30F3011-30I/P - 30 MIPS 16-bit DSC Motor Control | Microchip
MPN: DSPIC30F3011-30I/P β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $11.4 | $11.40 |
| 10 | $10.26 | $102.60 |
| 100 | $9.12 | $912.00 |
| 500 | $8.21 | $4,105.00 |
| 1,000 | $7.4 | $7,400.00 |
DSPIC30F3011-30I/P Overview
A Digital Signal Controller is a hybrid MCU-DSP architecture designed to combine deterministic microcontroller interrupt response with deterministic single-cycle MAC DSP math. Within the broader taxonomy, the DSPIC30F3011 sits at: DSC -> Digital Signal Controller -> 16-bit MCU -> Microcontroller -> Embedded Processing IC. dsPIC30F devices fill the gap between 8-bit PIC MCUs and full DSP processors, targeting real-time closed-loop control applications such as BLDC, PMSM, and AC induction motor drives where PID loops must execute every PWM cycle.
Key differentiating features include a 6-channel, 10-bit ADC capable of 1 Msps with simultaneous sampling, a 6-channel PWM module with complementary outputs and programmable dead time, a quadrature encoder interface (QEI), a 16-bit timer/counter, I2C, SPI, and UART communication peripherals, and 30 general-purpose I/O pins. The DSP engine adds a 17x17-bit single-cycle multiplier, 40-bit accumulators, and barrel shifter with dual-operand fetch, enabling real-time computation of Clark/Park transforms and field-oriented control (FOC) algorithms.
The DSPIC30F3011 architecture is built on a 5V CMOS process with 2.5-5.5V operating range, dual on-chip voltage regulators, and a flexible clock system that supports crystal, external clock, or internal RC oscillator modes. The motor-control PWM module features dedicated fault inputs and ADC triggering, allowing direct hardware synchronization between PWM edges and ADC conversions - critical for current-sense sampling at the correct PWM midpoint to avoid switching-noise contamination.
Typical applications include sensorless and sensored BLDC motor drives (HVAC fans, e-bikes, drones), PMSM field-oriented control for industrial servo drives, switched-mode power supplies with digital control loops, induction-motor variable-frequency drives, and automotive body electronics (fuel pumps, water pumps, HVAC blowers). It is also used in digital UPS systems, solar inverters, and CNC spindle controllers.
When designing with this device, allocate at least one PWM period for ADC conversion latency and ensure the ADC sample-and-hold capacitor is fully charged by the source impedance budget. The QEI module should be used with optical or magnetic encoders that provide complementary quadrature signals for direction discrimination and index pulse for homing.
This page synthesizes distributor pricing, drop-in pin-compatible alternatives, and practical design notes not found in the manufacturer datasheet, helping engineers make informed procurement and second-source decisions for motor-control designs.
Drop-in alternatives for DSPIC30F3011-30I/P β 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 DSPIC30F3011-30I/P (same form factor and footprint) β differing in Core Architecture, Mounting Type, Package, Operating Temperature, ADC.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
DSPIC30F3010-30I/P
β Drop-Inπ Reference alternative (not in catalog)
DSPIC30F3011-20I/PT
β Drop-Inβ In Stock
$3.85 / Unit
View Datasheet βDSPIC30F3010-20I/P
β Drop-Inπ Reference alternative (not in catalog)
DSPIC30F3011-30I/P Maximum Ratings & Electrical Characteristics
| Core Architecture | 16-bit dsPIC30F DSC (DSP-enhanced MCU) |
| Maximum CPU Speed | 30 MIPS at 30 MHz |
| Program Memory (Flash) | 24 KB |
| Data RAM | 1 KB |
| Data EEPROM | 1 KB |
| Operating Voltage | 2.5 V to 5.5 V |
| I/O Pins | 30 |
| ADC | 6-channel, 10-bit, 1 Msps |
| PWM Channels | 6 channels with complementary outputs |
| QEI (Quadrature Encoder Interface) | Yes |
| Communication Peripherals | 1x I2C, 1x SPI, 1x UART |
| Timers | 16-bit timer/counter (multiple) |
| Operating Temperature | -40C to +85C (Industrial) |
| Package | 40-pin PDIP (P) |
| Mounting Type | Through-Hole (DIP) |
| DSP Engine | 17x17-bit MAC, 40-bit accumulator |
| RoHS Status | Compliant |
| Speed Grade Suffix | 30I (30 MIPS, Industrial temp) |
DSPIC30F3011-30I/P Pin Configuration
| Pin 1 | MCLR β Master Clear (reset) input, active low |
| Pin 2 | RA0/AN0 β PORTA bit 0 / Analog input 0 |
| Pin 3 | RA1/AN1 β PORTA bit 1 / Analog input 1 |
| Pin 4 | RA2/AN2 β PORTA bit 2 / Analog input 2 |
| Pin 5 | RA3/AN3 β PORTA bit 3 / Analog input 3 |
| Pin 6 | RA4/AN4 β PORTA bit 4 / Analog input 4 |
| Pin 7 | AVDD β Analog supply voltage |
| Pin 8 | AVSS β Analog ground |
| Pin 9 | OSC1 β Crystal oscillator input or external clock |
| Pin 10 | OSC2 β Crystal oscillator output |
| Pin 11 | RC15 β PORTC bit 15 |
| Pin 12 | RC13/SOSCI β PORTC bit 13 / Secondary oscillator input |
| Pin 13 | RC14/SOSCO β PORTC bit 14 / Secondary oscillator output |
| Pin 14 | VDD β Digital supply voltage |
| Pin 15 | VSS β Digital ground |
| Pin 16 | RB0/AN8 β PORTB bit 0 / Analog input 8 |
| Pin 17 | RB1/AN9 β PORTB bit 1 / Analog input 9 |
| Pin 18 | RB2/AN10 β PORTB bit 2 / Analog input 10 |
| Pin 19 | RB3/AN11 β PORTB bit 3 / Analog input 11 |
| Pin 20 | RB4/AN12 β PORTB bit 4 / Analog input 12 |
| Pin 21 | RB5/AN13 β PORTB bit 5 / Analog input 13 |
| Pin 22 | RB6/AN14 β PORTB bit 6 / Analog input 14 |
| Pin 23 | RB7/AN15 β PORTB bit 7 / Analog input 15 |
| Pin 24 | RD8 β PORTD bit 8 |
| Pin 25 | RD9 β PORTD bit 9 |
| Pin 26 | RD10 β PORTD bit 10 |
| Pin 27 | RD11 β PORTD bit 11 |
| Pin 28 | RD12 β PORTD bit 12 |
| Pin 29 | RD13 β PORTD bit 13 |
| Pin 30 | RD14 β PORTD bit 14 |
| Pin 31 | RD15 β PORTD bit 15 |
| Pin 32 | VSS β Digital ground |
| Pin 33 | VDD β Digital supply voltage |
| Pin 34 | RC1/TXD β PORTC bit 1 / UART transmit |
| Pin 35 | RC2/RXD β PORTC bit 2 / UART receive |
| Pin 36 | RC3/SCK1 β PORTC bit 3 / SPI clock |
| Pin 37 | RC4/SDI1 β PORTC bit 4 / SPI data in |
| Pin 38 | RC5/SDO1 β PORTC bit 5 / SPI data out |
| Pin 39 | RC6/SCL1 β PORTC bit 6 / I2C clock |
| Pin 40 | RC7/SDA1 β PORTC bit 7 / I2C data |
Typical Applications
DSPIC30F3011-30I/P is suitable for 6 applications: BLDC Motor Control (Sensored/Sensorless), PMSM Field-Oriented Control (FOC) Servo Drives, Digital Switched-Mode Power Supply (SMPS) Control, AC Induction Motor Variable-Frequency Drives, Automotive Body Electronics (Pumps, Fans, HVAC), Solar Micro-Inverter and Power Optimizer.
BLDC Motor Control (Sensored/Sensorless)
The DSPIC30F3011-30I/P is a primary candidate for Brushless DC motor drives in appliances, e-bikes, drones, and HVAC blowers. Its 30 MIPS DSP engine executes back-EMF zero-crossing detection and six-step commutation within microseconds, while the 6-channel 1 Msps ADC samples phase currents synchronously to PWM edges via the dedicated ADC trigger - critical for avoiding switching-noise contamination. The 6-channel Motor-Control PWM module generates complementary outputs with programmable dead time to drive a 3-phase inverter bridge. Compared to 8-bit PIC16 alternatives, the DSP engine delivers a 5-10x throughput improvement for trapezoidal commutation and sensorless startup routines. The 24 KB Flash holds the complete state machine, ramp tables, and fault handlers; 1 KB EEPROM stores calibrated motor parameters across power cycles. The QEI module interfaces directly to Hall-sensor or encoder feedback for sensored commutation at higher RPM. Industrial temperature grade (-40C to +85C) suits automotive underhood and outdoor equipment.
Recommended
PMSM Field-Oriented Control (FOC) Servo Drives
For Permanent Magnet Synchronous Motor servo drives in robotics, CNC spindles, and industrial automation, the DSPIC30F3011-30I/P executes the full FOC algorithm (Clark/Park transform, inverse transform, SVDI) within a single PWM period. Its 17x17-bit single-cycle MAC and 40-bit accumulator deliver the dynamic range required for current-loop PI controllers running at 10-20 kHz. The 6-channel 10-bit ADC simultaneously samples Ia and Ib currents at the PWM midpoint using the hardware trigger, eliminating software jitter. Compared to lower-end MCUs, the DSP engine adds approximately 3-5 MIPS of headroom specifically for FOC math. Microchip's AN1078 application note provides reference firmware. The 24 KB Flash accommodates the FOC state machine plus CANopen or RS-485 communication stacks. Recommended peripheral companions include the MCP2515 CAN controller and an isolated gate driver such as the Si8271 for IGBT bridges.
Recommended
Digital Switched-Mode Power Supply (SMPS) Control
The DSPIC30F3011-30I/P serves as the digital controller for digitally-controlled SMPS in telecom rectifiers, server PSUs, and solar micro-inverters. Its 30 MIPS DSP engine runs voltage-mode and peak-current-mode control loops, plus digital compensator algorithms (Type-II/III) at 100-500 kHz switching frequencies. The 6-channel 1 Msps ADC samples the output voltage, inductor current, and auxiliary voltages for input voltage feedforward. The 6-channel PWM module drives the primary MOSFET and synchronous rectifier with programmable dead time and fault protection. Compared to analog UC3842-type implementations, digital control delivers adaptive loop compensation, programmable soft-start, and telemetry via UART/I2C. The 24 KB Flash holds the compensator coefficients, lookup tables, and PMBus protocol stack. The industrial temperature range suits outdoor and industrial enclosure environments. The EEPROM stores calibration data and fault logs.
Recommended
AC Induction Motor Variable-Frequency Drives
For low-to-medium power AC induction motor drives in fans, pumps, and small industrial machinery, the DSPIC30F3011-30I/P implements scalar V/Hz and vector control algorithms at 30 MIPS. The DSP engine runs sine-triangle PWM and space-vector PWM with harmonic injection for reduced switching losses. Its 6-channel PWM module drives a 3-phase IGBT inverter with adjustable dead time to prevent shoot-through. The 6-channel 10-bit ADC measures DC bus voltage and two phase currents for slip estimation and protection. Compared to 8-bit MCUs, the DSP throughput enables full V/Hz plus slip compensation plus soft-start in a single firmware load. The 24 KB Flash is ample for V/Hz profile tables and fault diagnostics. Recommended peripheral companions include isolated current sensors such as the LA55-P and gate drivers such as the IR2110.
Recommended
Automotive Body Electronics (Pumps, Fans, HVAC)
Although the DSPIC30F3011-30I/P is industrial-grade rather than AEC-Q100 qualified, it is widely used in non-safety automotive body applications such as fuel pumps, water pumps, HVAC blowers, and 12V auxiliary fans where the 12V battery rail is stepped down to 5V for the MCU. Its wide 2.5V-5.5V operating range handles automotive load-dump and cranking transients directly. The 30 MIPS performance drives sensorless BLDC algorithms at 24V-48V supply; the 6-channel PWM module drives a 3-phase half-bridge with current limiting. Compared to dedicated automotive motor-control ICs, the DSPIC30F3011 offers more flexibility for proprietary firmware. The -40C to +85C industrial temperature range covers cabin and underhood body applications. For safety-critical or AEC-Q100 applications, Microchip offers dsPIC33F automotive variants. Recommended peripheral companions include the MCP1700 LDO regulator and TLE2426 rail splitter.
Recommended
Solar Micro-Inverter and Power Optimizer
For solar micro-inverters and DC-DC power optimizers in residential photovoltaic systems, the DSPIC30F3011-30I/P implements MPPT algorithms (Perturb&Observe or Incremental Conductance) at 30 MIPS while running inverter current control. Its 6-channel ADC samples PV panel voltage, current, and grid voltage for anti-islanding protection. The 6-channel PWM module drives a high-frequency transformer-isolated DC-DC stage plus a 50/60 Hz grid-tie inverter bridge. Compared to fixed-function MPPT controllers, the dsPIC offers custom MPPT tuning, telemetry, and grid-code compliance via firmware updates. The 24 KB Flash holds the MPPT state machine, grid synchronization PLL, and Modbus or power-line communication stack. Recommended peripheral companions include the ACS712 current sensor and HCPL-3120 isolated gate driver for the grid-side bridge.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC30F3011-30I/P β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC30F3010-30I/P | DSPIC30F3011-20I/P | DSPIC30F3010-20I/P |
|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | PDIP-40 | PDIP-40 (same) | PDIP-40 (same) | PDIP-40 (same) |
| CPU Speed | 30 MIPS | 30 MIPS (same) | 20 MIPS (-33%) | 20 MIPS (-33%) |
| Flash Program Memory | 24 KB | 24 KB (same) | 24 KB (same) | 24 KB (same) |
| Data RAM | 1 KB | 1 KB (same) | 1 KB (same) | 1 KB (same) |
| Data EEPROM | 1 KB | 1 KB (same) | 1 KB (same) | 1 KB (same) |
| PWM Channels | 6 | 6 (same) | 6 (same) | 6 (same) |
| QEI Module | Yes | No (omitted) | Yes (same) | No (omitted) |
| ADC | 6-ch 10-bit 1 Msps | 6-ch 10-bit 1 Msps (same) | 6-ch 10-bit 1 Msps (same) | 6-ch 10-bit 1 Msps (same) |
| Operating Temperature | -40C to +85C | -40C to +85C (same) | -40C to +85C (same) | -40C to +85C (same) |
Key Differentiators
- Includes QEI (Quadrature Encoder Interface) module for sensored motor control (vs DSPIC30F3010-30I/P)
- 30 MIPS performance enables sensorless FOC and advanced motor-control algorithms (vs DSPIC30F3011-20I/P)
- PDIP-40 package supports through-hole prototyping and hobbyist use (vs DSPIC30F3011-30I/PT)
- On-chip 1 KB EEPROM stores motor calibration parameters without external memory (vs 8-bit PIC16F MCUs)
Design Notes
The DIP-40 package has a typical theta_JA of approximately 45-50 C/W when mounted in still air without a heatsink or forced airflow. Estimated: at 30 MIPS execution with 5V supply and typical 30 mA core current plus 30 mA I/O switching, total dissipation is around 300 mW, producing a junction temperature rise of 13-15C above ambient. At +85C ambient, junction reaches 98-100C - within the 150C maximum but with limited margin. For continuous high-load operation at elevated temperatures, provide a small clip-on heatsink or forced airflow, and consider switching to the TQFP-44 surface-mount variant (lower theta_JA around 35 C/W with a copper pad thermal via array).
Place decoupling capacitors as close as possible to each VDD/VSS pin pair: a 100 nF ceramic for high-frequency decoupling plus a 10 uF tantalum or ceramic bulk capacitor at the package power entry. Use separate analog (AVDD/AVSS) and digital (VDD/VSS) supply planes, joined at a single point under the MCU. Keep the ADC analog traces away from PWM switching traces to avoid capacitive coupling - route ADC inputs on one PCB layer and PWM outputs on another with a ground plane between them. The 40-pin PDIP lead pitch is 2.54 mm; standard through-hole design rules apply. Place the crystal oscillator within 10 mm of pins 9-10 with short, symmetric traces and a guard ring tied to ground.
The 6-channel 10-bit ADC requires careful analog front-end design to achieve the rated 1 Msps throughput. Use a low-impedance op-amp buffer (such as MCP6022 or MCP6S21) between the analog source and ADC input pins, with a 1 nF charge-sharing capacitor and anti-aliasing RC network (typically 1 kohm source impedance, 100 pF hold cap). Synchronize ADC sampling to PWM edges using the dedicated ADC trigger from the PWM module - this eliminates software jitter and ensures current-sense samples are taken at the PWM midpoint where switching noise is minimum. The QEI inputs should be differential-line driven (RS-422 or 26LS31) for noisy industrial environments, with 4.7 kohm pull-ups and 100 pF filter capacitors to ground.
Estimated timing budget: at 30 MIPS, each instruction cycle is 33 ns; an FOC iteration (Clark + Park + inverse + SVDI) typically requires 200-300 instruction cycles, or about 7-10 microseconds. At a 20 kHz PWM frequency (50 us period), this leaves 40+ us headroom. However, when stepping down to the 20 MIPS DSPIC30F3011-20I/P, the same algorithm takes 10-15 us, consuming 40-60% of the PWM period - acceptable for trapezoidal commutation but tight for advanced observer-based sensorless FOC. Always profile your timing-critical ISRs in MPLAB X Simulator before committing to a lower-speed drop-in part. Also note that DSPIC30F3010 variants omit the QEI module - do not substitute without removing QEI initialization from your firmware.
The 6-channel PWM outputs should be routed as differential pairs (PWMxH/PWMxL) with matched trace lengths within 1 mm to prevent timing skew between high-side and low-side gate signals. Place gate-driver ICs within 25 mm of the MCU to minimize PWM trace inductance, and add 10 kohm pull-down resistors on each PWM output to ensure defined states during MCU reset or programming. The motor phase-current sense amplifiers (typically op-amps with 20-40 dB gain) should be located within 10 mm of the MCU ADC pins to minimize trace capacitance, which would otherwise degrade ADC bandwidth. Use a 4-layer PCB with dedicated ground plane beneath the MCU and inverter section.
Compliance Information
RoHS compliant per Microchip product declaration. Industrial temperature grade -40C to +85C. NOT AEC-Q100 qualified - for automotive applications use dsPIC33F automotive variants. Lead-free matte-tin plating on PDIP leads.
