DSPIC30F4011-20I/ML - 16-bit DSC 48KB Flash 44-QFN | Microchip
MPN: DSPIC30F4011-20I/ML β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $6.47 | $6.47 |
| 10 | $5.95 | $59.50 |
| 100 | $5.3 | $530.00 |
| 500 | $4.62 | $2,310.00 |
| 1,000 | $4.15 | $4,150.00 |
DSPIC30F4011-20I/ML Overview
A Digital Signal Controller (DSC) is a hybrid device class that combines a microcontroller (MCU) core with on-chip DSP capability β specifically, a multiply-accumulate (MAC) engine and barrel shifter β enabling deterministic closed-loop control algorithms such as field-oriented control (FOC), space-vector modulation, and digital filtering. Within the broader taxonomy, the DSC sits between a microcontroller (MCU) and a full digital signal processor (DSP), inheriting MCU ease-of-use while delivering real-time signal-processing throughput. This hierarchical positioning β DSC -> MCU + DSP -> embedded controller -> semiconductor β makes the part suitable for mixed control-and-signal-chain applications.
Key differentiating specifications include a 30 MIPS instruction throughput at the rated 20 MHz external oscillator (with internal PLL up to 40 MHz operation), a 12-bit Analog-to-Digital Converter (ADC) with 200 ksps sampling on 9 channels, six independent PWM output pairs ideal for 3-phase motor drive, and a 16-bit timer/counter block. The device also provides UART, SPI, I2C, CAN, and QEI peripherals, supporting both brushed and brushless DC motor topologies as well as industrial communication protocols.
The architecture implements a 24-bit wide instruction word and dual-bus (program + data) Harvard design, allowing instruction fetches and data accesses to occur in parallel. Hardware multiply and divide support single-cycle MAC operations, enabling PID, sin/cos, and Clarke/Park transforms for sensorless control loops at full sample rate without software saturation.
Typical applications span sensorless and sensored BLDC/PMSM motor drives, industrial inverters, digital UPS and PFC stages, sensor signal conditioning, and automotive body electronics. The wide 3.0β5.5 V supply range and automotive-grade Q-temperature variant (DSPIC30F4011-20E/ML, -40C to +125C) make the family usable in harsh-environment designs.
When designing with this device, allocate the ADC sample-and-hold capacitor charging time per the datasheet's acquisition timing diagram, and reserve the QEI module pins for incremental encoder feedback if sensored FOC is targeted. Migration to dsPIC33F or PIC24 MCU families is supported pin-compatibly for higher-frequency or lower-power variants.
This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes not found in the manufacturer datasheet alone.
Drop-in alternatives for DSPIC30F4011-20I/ML 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 DSPIC30F4011-20I/ML (same form factor and footprint) β differing in ADC, Operating Temperature, Package, Data EEPROM, Core Architecture.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
DSPIC30F4011-20E/ML
β Drop-Inβ In Stock
$6.72 / Unit
View Datasheet βDSPIC30F4011-30I/ML
β Drop-Inβ In Stock
$5.48 / Unit
View Datasheet βDSPIC30F4012-20I/ML
β Drop-Inπ Reference alternative (not in catalog)
dsPIC33FJ32MC204-I/ML
β Drop-Inπ Reference alternative (not in catalog)
DSPIC30F4011-20I/ML Maximum Ratings & Electrical Characteristics
| Core Architecture | dsPIC30F (modified Harvard, 16-bit data / 24-bit instruction) |
| Maximum CPU Speed | 20 MIPS (at 20 MHz external, PLL-up to 40 MHz internal) |
| Program Memory (Flash) | 48 KB |
| Data SRAM | 2 KB |
| Data EEPROM | 1 KB |
| ADC | 12-bit, 200 ksps, 9 input channels |
| PWM Outputs | 6 pairs (motor-control PWM module) |
| I/O Pins | 20 digital I/O |
| Communication Peripherals | UART, SPI, I2C, CAN, QEI |
| Supply Voltage | 3.0 V to 5.5 V |
| Operating Temperature | -40C to +85C (Industrial, 'I' suffix) |
| Package | QFN-44 (8x8 mm) |
| Package Type | QFNL, plastic, with exposed pad |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
| Instruction Word Width | 24-bit |
DSPIC30F4011-20I/ML Pin Configuration
| Pin 1 | AN0/VREF+/CN2/RB0 β Analog input 0 / positive ADC reference / change notification |
| Pin 2 | AN1/VREF-/CN3/RB1 β Analog input 1 / negative ADC reference / change notification |
| Pin 3 | AN2/SS1/CN4/RB2 β Analog input 2 / SPI1 slave select / change notification |
| Pin 4 | AN3/CN5/RB3 β Analog input 3 / change notification |
| Pin 5 | AN4/CN6/RB4 β Analog input 4 / change notification |
| Pin 6 | AN5/CN7/RB5 β Analog input 5 / change notification |
| Pin 7 | AN6/OC1/CN8/RB6 β Analog input 6 / output compare 1 / change notification |
| Pin 8 | AN7/OC2/CN9/RB7 β Analog input 7 / output compare 2 / change notification |
| Pin 9 | VDD β Positive supply (3.0-5.5 V) |
| Pin 10 | VSS β Ground reference |
| Pin 11 | OSC1/CLKI/RC15 β External oscillator input / digital I/O |
| Pin 12 | OSC2/CLKO/RC13 β External oscillator output / digital I/O |
| Pin 13 | FLTA/INT0/RA11 β PWM fault input / external interrupt 0 / digital I/O |
| Pin 14 | FLTB/INT1/RA12 β PWM fault input / external interrupt 1 / digital I/O |
| Pin 15 | FLTC/INT2/RA13 β PWM fault input / external interrupt 2 / digital I/O |
| Pin 16 | PWM1L/RE0 β PWM 1 low-side output / digital I/O |
| Pin 17 | PWM1H/RE1 β PWM 1 high-side output / digital I/O |
| Pin 18 | PWM2L/RE2 β PWM 2 low-side output / digital I/O |
| Pin 19 | PWM2H/RE3 β PWM 2 high-side output / digital I/O |
| Pin 20 | PWM3L/RE4 β PWM 3 low-side output / digital I/O |
| Pin 21 | PWM3H/RE5 β PWM 3 high-side output / digital I/O |
| Pin 22 | QEA/IC7/CN17/RD0 β Quadrature encoder A / input capture 7 / change notification |
| Pin 23 | QEB/IC8/CN18/RD1 β Quadrature encoder B / input capture 8 / change notification |
| Pin 24 | INDX/OCFA/CN19/RD2 β Quadrature index / output compare fault A / change notification |
| Pin 25 | HOME/OCFB/CN20/RD3 β Home position / output compare fault B / change notification |
| Pin 26 | IC1/CN21/RD4 β Input capture 1 / change notification |
| Pin 27 | IC2/CN22/RD5 β Input capture 2 / change notification |
| Pin 28 | IC3/CN23/RD6 β Input capture 3 / change notification |
| Pin 29 | IC4/CN24/RD7 β Input capture 4 / change notification |
| Pin 30 | T1CK/RC1 β Timer 1 external clock / digital I/O |
| Pin 31 | T2CK/RC2 β Timer 2 external clock / digital I/O |
| Pin 32 | T3CK/RC3 β Timer 3 external clock / digital I/O |
| Pin 33 | U1RX/CN25/RF0 β UART 1 receive / change notification |
| Pin 34 | U1TX/CN26/RF1 β UART 1 transmit / change notification |
| Pin 35 | U2RX/CN27/RF2 β UART 2 receive / change notification |
| Pin 36 | U2TX/CN28/RF3 β UART 2 transmit / change notification |
| Pin 37 | SDO1/CN9/RF4 β SPI 1 data out / change notification |
| Pin 38 | SDI1/CN10/RF5 β SPI 1 data in / change notification |
| Pin 39 | SCK1/CN11/RF6 β SPI 1 clock / change notification |
| Pin 40 | SDA1/CN12/RG2 β I2C 1 data / change notification |
| Pin 41 | SCL1/CN13/RG3 β I2C 1 clock / change notification |
| Pin 42 | C1RX/RG0 β CAN 1 receive / digital I/O |
| Pin 43 | C1TX/RG1 β CAN 1 transmit / digital I/O |
| Pin 44 | VDD β Positive supply (3.0-5.5 V) |
| Pin EP | VSS (Exposed Pad) β Ground β must be soldered to PCB ground plane for thermal dissipation |
Typical Applications
DSPIC30F4011-20I/ML is suitable for 6 applications: Sensorless BLDC / PMSM Motor Control, Digital Power Conversion (PFC and UPS), Industrial Variable-Frequency Drives, Automotive Body Electronics, Solar Inverter Control, Sensor Signal Conditioning.
Sensorless BLDC / PMSM Motor Control
The DSPIC30F4011-20I/ML is purpose-built for 3-phase BLDC and PMSM motor drives in the sub-1 kW range, where its 6 PWM output pairs, 9-channel 200 ksps ADC, and 20 MIPS dsPIC core deliver closed-loop sensorless FOC at typical 10β20 kHz PWM frequencies. The integrated QEI module accepts incremental encoder feedback for sensored FOC variants, while the 48 KB Flash comfortably hosts Microchip's AN1078 sensorless FOC library (typically 20β30 KB compiled). Designers tap the device's dual sample-and-hold ADC channels to sample two phase currents simultaneously during the PWM cycle, eliminating current-sensing dead zones that plague single-sample architectures.
Recommended
Digital Power Conversion (PFC and UPS)
In digital PFC, totem-pole PFC, and on-line UPS stages, the DSPIC30F4011-20I/ML serves as the control-law executor, sampling inductor current and output voltage through its 9-channel ADC at 200 ksps and computing duty-cycle updates via hardware-accelerated PID and average-current-mode control loops. The single-cycle MAC instruction and barrel shifter enable FFT-based harmonic analysis for THD optimization within 50β60 Hz line cycles. The wide 3.0β5.5 V supply tolerance lets the device operate directly from a 5 V auxiliary rail generated by the power stage, simplifying boot sequencing. Designers should allocate a separate ADC channel for input voltage sensing and configure ADC trigger synchronization to the PWM reload event for sub-microsecond control-loop determinism.
Recommended
Industrial Variable-Frequency Drives
Industrial VFDs controlling AC induction motors from fractional-horsepower up to several kW benefit from the DSPIC30F4011's V/Hz and sensorless vector control firmware libraries (Microchip AN984 and AN1078). The device's CAN 2.0B peripheral supports Modbus/CANopen integration into factory automation networks, while the UART/SPI/I2C ports handle local HMI and parameter storage. The 48 KB Flash supports complete scalar-V/Hz plus sensorless vector control fallback, with the 1 KB EEPROM storing motor nameplate parameters. Industrial designers should use the -20E/ML automotive-temperature variant when ambient enclosure temperatures exceed 70Β°C, and provision the QEI module pins for optional encoder retrofit on sensored installations.
Recommended
Automotive Body Electronics
Body-electronics modules such as HVAC blower controllers, electric water pumps, fuel pumps, and electric power steering (EPS) auxiliaries use the DSPIC30F4011-20E/ML automotive variant, which qualifies to AEC-Q100 and operates over -40C to +125C. The device's CAN 2.0B peripheral integrates directly with vehicle CAN bus architectures at 500 kbps or 1 Mbps, while its 6 PWM outputs can drive external MOSFET half-bridges or BLDC fan motors. The 12-bit ADC provides sufficient resolution for temperature, current, and position feedback. Designers should use Microchip's automotive-grade firmware libraries and follow the dsPIC30F Family Reference Manual's EMC and ESD hardening guidelines for under-the-hood modules.
Recommended
Solar Inverter Control
Small-to-medium residential and commercial solar inverters in the 1β10 kW range use the DSPIC30F4011 as the MPPT and grid-synchronization controller, where its DSP throughput handles perturb-and-observe or incremental-conductance MPPT algorithms at sub-millisecond update rates. The ADC simultaneously samples PV string voltage, current, and grid voltage to compute real and reactive power for anti-islanding detection. The 1 KB EEPROM stores panel vibration datalogging and grid-tie configuration, while the UART provides Modbus communication with external energy meters. For higher-voltage grid-tie applications, pair with Microchip's MCP8024 gate driver or external IGBT modules.
Recommended
Sensor Signal Conditioning
Beyond motor and power control, the DSPIC30F4011's DSP capabilities suit sensor-signal conditioning applications: digital filtering (FIR, IIR) of accelerometer, strain-gauge, or load-cell outputs; RMS computation for AC current sensors; and vibration analysis via FFT for predictive maintenance. The 9-channel ADC supports multi-sensor aggregation, and the 48 KB Flash holds filter coefficient tables and look-up tables. The QEI peripheral can decode quadrature outputs from linear encoders or rotary position sensors simultaneously with DSP filtering of analog sensor channels, all on a single chip β eliminating the need for a separate DSP co-processor.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC30F4011-20I/ML β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC30F4011-20E/ML | DSPIC30F4011-30I/ML | DSPIC30F4012-20I/ML | dsPIC33FJ32MC204-I/ML |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | QFN-44 (8x8 mm) | QFN-44 (8x8 mm) - same | QFN-44 (8x8 mm) - same | QFN-44 (8x8 mm) - same | QFN-44 (8x8 mm) - same |
| Core Architecture | dsPIC30F (16-bit DSC) | dsPIC30F (16-bit DSC) | dsPIC30F (16-bit DSC) | dsPIC30F (16-bit DSC) | dsPIC33F (16-bit DSC) |
| CPU Speed | 20 MIPS | 20 MIPS | 30 MIPS | 20 MIPS | 40 MIPS |
| Program Flash | 48 KB | 48 KB | 48 KB | 48 KB | 32 KB |
| Data SRAM | 2 KB | 2 KB | 2 KB | 2 KB | 2 KB |
| ADC Channels | 9 x 12-bit @ 200 ksps | 9 x 12-bit @ 200 ksps | 9 x 12-bit @ 200 ksps | 6 x 12-bit @ 200 ksps | 9 x 10-bit @ 1.1 Msps |
| PWM Output Pairs | 6 pairs | 6 pairs | 6 pairs | 4 pairs | 6 pairs |
| Operating Temperature | -40C to +85C (Industrial) | -40C to +125C (Automotive) | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +85C (Industrial) |
| CAN Peripheral | Yes (CAN 2.0B) | Yes (CAN 2.0B) | Yes (CAN 2.0B) | Yes (CAN 2.0B) | Yes (CAN 2.0B) |
| Supply Voltage | 3.0 V to 5.5 V | 3.0 V to 5.5 V | 3.0 V to 5.5 V | 3.0 V to 5.5 V | 3.0 V to 3.6 V |
Key Differentiators
- Pin-compatible migration to 30 MIPS and 40 MIPS variants (vs DSPIC30F4011-30I/ML and dsPIC33FJ32MC204-I/ML)
- Integrated 6 PWM pairs plus QEI module in one chip (vs DSPIC30F4012-20I/ML)
- Wide 3.0β5.5 V supply tolerance for direct 5 V bus operation (vs dsPIC33FJ32MC204-I/ML)
Design Notes
The QFN-44 (8x8 mm) exposed pad must be soldered to a continuous ground pour with at least 8 thermal vias to the internal ground plane to meet the package's thermal performance specification. Without proper EP soldering, the silicon junction temperature can rise 15β20C above the rated limit at moderate switching loads, triggering thermal shutdown. Place 0.1 uF decoupling capacitors on every VDD pin (there are multiple VDD pins around the package perimeter) within 2 mm of the package body, with an additional 10 uF bulk capacitor nearby to suppress PWM-switching current spikes from corrupting the ADC reference.
For 3-phase motor control, sample two phase currents simultaneously using the ADC's dual sample-and-hold mode, triggered synchronously with the PWM reload event. This eliminates the dead-zone distortion that occurs when sampling sequentially during high-side or low-side conduction. Keep ADC traces short and routed away from PWM output traces β capacitive coupling from switching PWM signals into the high-impedance ADC inputs can introduce tens of millivolts of switching noise that saturates low-current phase-current measurements in field-weakening regions.
Estimated: Total power dissipation at 20 MIPS execution from 5 V supply with all peripherals active is approximately 60 mA (300 mW). Designers running the device at the industrial -40C to +85C range near 5.5 V with the core and peripherals simultaneously at peak load should verify that the thermal resistance of their PCB copper pour keeps junction temperature below 125C. A common pitfall is leaving the JTAG/ICSP test pins floating in production β these pins must be tied to defined logic levels (typically VDD or VSS) to avoid unwanted entry into test mode from EMI-induced transients.
Keep the 20 MHz external crystal (or oscillator) traces within 5 mm of the OSC1/OSC2 pins, with a ground guard ring to isolate them from switching noise. The PLL multiplier can amplify noise on the 20 MHz reference, so the resulting internal 40 MHz system clock may exhibit higher jitter if the reference clock is contaminated. For motor-control applications where PWM timing precision affects current-loop stability, place the crystal on the same PCB side as the dsPIC30F4011 and route through vias only when absolutely necessary.
Compliance Information
RoHS compliant per Microchip product page. Industrial temperature grade; AEC-Q100 qualification requires the DSPIC30F4011-20E/ML automotive variant. Halogen-free status not explicitly stated in the verified data β set to 'unknown'.
