DSPIC30F4012T-30I/ML - 16-bit DSC, 30MIPS, 48KB Flash | Microchip
MPN: DSPIC30F4012T-30I/ML ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $8.9 | $8.90 |
| 10 | $8.2 | $82.00 |
| 100 | $7.45 | $745.00 |
| 500 | $6.8 | $3,400.00 |
| 1,000 | $6.15 | $6,150.00 |
DSPIC30F4012T-30I/ML Overview
What is a DSC? A Digital Signal Controller is a hybrid architecture that fuses a modified Harvard RISC CPU with single-cycle MAC DSP engines, deterministic interrupt latency, and rich motor-control peripherals. Within the taxonomy, a DSC sits above a generic microcontroller (MCU) and below a standalone DSP, occupying the power management and motor control niches where deterministic timing plus signal processing is required. dsPIC30F specifically targets 3-phase motor control, PFC, and audio processing.
Key features include a 6-channel, 10-bit Analog-to-Digital Converter (ADC) with 1 Msps throughput, a dedicated Motor Control PWM module with up to 8 outputs, a Quadrature Encoder Interface (QEI), plus CAN, I2C, SPI, and UART connectivity. The on-chip DSP engine adds single-cycle 16x16-bit MAC, 40-bit accumulators, and barrel shifter, enabling real-time FFT, FIR/IIR filtering, and field-oriented control loops without offloading to a separate DSP.
Typical applications include 3-phase BLDC and PMSM motor drives (FOC with space-vector modulation), sensorless motor control using the ADC and QEI, digital UPS and PFC stages, audio processing front-ends, industrial CAN-connected sensor nodes, and automotive body controllers. The 30 MHz core and 48KB Flash are sized for typical motor-control state machines plus sensor-fusion DSP code.
When designing, ensure the supply decoupling network follows Microchip's reference: 10uF bulk plus 0.1uF ceramic near each VDD pin, with the AVDD/VSS analog pair isolated by ferrite. The QFN thermal pad must be soldered to a continuous ground plane for thermal and electrical performance. Programming/debugging is supported via MPLAB ICD 3 or MPLAB REAL ICE through the standard ICSP interface.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.
Drop-in alternatives for DSPIC30F4012T-30I/ML — 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 DSPIC30F4012T-30I/ML (same form factor and footprint) — differing in ADC, Package, Timers, Motor Control PWM, Operating Temperature.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC30F4012-30I/ML
✅ Drop-In✓ In Stock
$4.79 / Unit
View Datasheet →DSPIC30F4012T-20E/ML
✅ Drop-In✓ In Stock
$3.7 / Unit
View Datasheet →DSPIC30F4011T-30I/ML
✅ Drop-In✓ In Stock
$5.2 / Unit
View Datasheet →DSPIC30F4012-20I/ML
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC30F4012-20E/ML
✅ Drop-In✓ In Stock
$6.8 / Unit
View Datasheet →DSPIC30F4012T-30I/ML Maximum Ratings & Electrical Characteristics
| Core | dsPIC30F 16-bit DSC |
| Program Memory (Flash) | 48 KB (16K x 24) |
| Data SRAM | 2 KB |
| EEPROM | 1 KB |
| CPU Speed | 30 MIPS at 30 MHz |
| ADC | 6-channel, 10-bit, 1 Msps |
| Motor Control PWM | Yes (6 outputs) |
| Quadrature Encoder Interface (QEI) | Yes |
| CAN | 1x CAN module |
| I2C | 1x I2C |
| SPI | 1x SPI |
| UART/USART | 1x UART |
| Operating Voltage | 2.5 V to 5.5 V |
| Operating Temperature | -40C to +85C (industrial) |
| Package | 44-QFN (8x8 mm) with exposed pad |
| Mounting Type | Surface Mount |
| DSP Engine | Single-cycle 16x16 MAC, 40-bit accumulator |
| RoHS Status | Compliant |
DSPIC30F4012T-30I/ML Pin Configuration
| Pin 1 | EMUD1/AN0/VREF+/CN2 — Emulation data / analog input / VREF+ |
| Pin 2 | EMUC1/AN1/VREF-/CN3 — Emulation clock / analog input / VREF- |
| Pin 3 | AN2/CN4 — Analog input |
| Pin 4 | AN3/CN5 — Analog input |
| Pin 5 | AN4/CN6 — Analog input |
| Pin 6 | AVDD — Analog supply |
| Pin 7 | AVSS — Analog ground |
| Pin 8 | AN5/CN7 — Analog input |
| Pin 9 | AN6/CN8 — Analog input |
| Pin 10 | OSC1/CLKIN — Crystal oscillator input / external clock |
| Pin 11 | OSC2/CLKO — Crystal oscillator output |
| Pin 12 | PWM1L/CN1 — PWM1 low-side output |
| Pin 13 | PWM1H/CN0 — PWM1 high-side output |
| Pin 14 | PWM2L — PWM2 low-side output |
| Pin 15 | PWM2H — PWM2 high-side output |
| Pin 16 | PWM3L — PWM3 low-side output |
| Pin 17 | PWM3H — PWM3 high-side output |
| Pin 18 | QEA/IC1/CN9 — QEI phase A / input capture |
| Pin 19 | QEB/IC2/CN10 — QEI phase B / input capture |
| Pin 20 | INDX/IC3/CN11 — QEI index / input capture |
| Pin 21 | FLTA/INT0/CN12 — PWM fault / external interrupt |
| Pin 22 | U1RX/CN13 — UART1 receive |
| Pin 23 | U1TX/CN14 — UART1 transmit |
| Pin 24 | PGC/EMUC — ICSP clock / emulation clock |
| Pin 25 | PGD/EMUD — ICSP data / emulation data |
| Pin 26 | MCLR — Master clear reset |
| Pin 27 | C1RX/CN15 — CAN1 receive |
| Pin 28 | C1TX/CN16 — CAN1 transmit |
| Pin 29 | SCK1/CN17 — SPI1 clock |
| Pin 30 | SDI1/CN18 — SPI1 data in |
| Pin 31 | SDO1/CN19 — SPI1 data out |
| Pin 32 | SS1/CN20 — SPI1 slave select |
| Pin 33 | SCL1/CN21 — I2C1 clock |
| Pin 34 | SDA1/CN22 — I2C1 data |
| Pin 35 | VDD — Digital supply |
| Pin 36 | VSS — Digital ground |
| Pin 37 | T1CK/CN23 — Timer1 clock |
| Pin 38 | T2CK/CN24 — Timer2 clock |
| Pin 39 | IC4/CN25 — Input capture 4 |
| Pin 40 | IC5/CN26 — Input capture 5 |
| Pin 41 | OC1/CN27 — Output compare 1 |
| Pin 42 | OC2/CN28 — Output compare 2 |
| Pin 43 | INT1/CN29 — External interrupt 1 |
| Pin 44 | INT2/CN30 — External interrupt 2 |
Typical Applications
DSPIC30F4012T-30I/ML is suitable for 6 applications: 3-Phase BLDC / PMSM Motor Drive with FOC, Industrial CAN-Connected Sensor Hub, Digital Power Factor Correction (PFC) Controller, Automotive Body Control Module, Audio Signal Processing Front-End, Uninterruptible Power Supply (UPS) Digital Controller.
3-Phase BLDC / PMSM Motor Drive with FOC
The DSPIC30F4012T-30I/ML's 30 MIPS core, single-cycle 16x16 MAC DSP engine, and dedicated Motor Control PWM module with hardware dead-time make it ideally suited to 3-phase BLDC and PMSM motor drives running field-oriented control. The 1 Msps 10-bit ADC samples phase currents synchronously to the PWM cycle, while the DSP engine executes Park/Clarke transforms and PI loops within microseconds. The QEI input supports incremental encoder feedback for high-speed sensored FOC. Six PWM outputs drive a 3-phase inverter directly. Same-package family variants (DSPIC30F4011T-30I/ML) can be used when CAN is not required.
Recommended
Industrial CAN-Connected Sensor Hub
The integrated CAN module plus industrial -40C to +85C temperature rating make the DSPIC30F4012T-30I/ML well-suited for industrial CAN-bus sensor hubs that aggregate analog/digital signals and publish over CANopen or DeviceNet. The 48KB Flash holds the CANopen stack plus sensor processing, while the 1KB EEPROM stores node configuration and calibration. The 10-bit ADC reads up to 6 analog sensors, with the UART/SPI/I2C peripherals adding flexibility for digital sensors. The DSP engine provides on-board filtering for vibration or acoustic sensors.
Recommended
Digital Power Factor Correction (PFC) Controller
The DSPIC30F4012T-30I/ML's high-speed ADC and DSP throughput suit digital PFC control loops at typical switching frequencies of 50-100 kHz. The DSP engine computes real-time power calculations, harmonic compensation, and adaptive control law adjustments, while the PWM module drives the boost PFC MOSFET. The 2KB SRAM buffers instantaneous current/voltage samples for FFT-based power-quality analysis. The CAN peripheral reports power metrics to a system controller.
Recommended
Automotive Body Control Module
The DSPIC30F4012T-30I/ML's industrial temperature range and rich peripheral set (CAN, PWM, ADC, QEI) suit non-safety-critical automotive body controllers such as seat controllers, HVAC flaps, and lighting modules. The 48KB Flash accommodates LIN/CAN stacks plus application logic. For under-hood applications requiring -40C to +125C, the DSPIC30F4012T-20E/ML (E suffix) provides the extended temperature grade in the same 44-QFN footprint, enabling drop-in upgrade.
Recommended
Audio Signal Processing Front-End
The DSP engine's single-cycle MAC and 40-bit accumulator let the DSPIC30F4012T-30I/ML execute real-time FIR, IIR, and FFT operations for audio front-ends such as active noise cancellation, beamforming, and equalization. The 1 Msps ADC oversamples microphone or line inputs, with the DSP engine performing 48 kHz audio-rate DSP comfortably within MIPS budget. The I2S or SPI interface (configured via PPS) streams processed audio to a DAC or codec. The 2KB SRAM holds audio buffers and delay lines.
Recommended
Uninterruptible Power Supply (UPS) Digital Controller
The DSPIC30F4012T-30I/ML can serve as the digital controller for small-to-medium UPS systems, with the DSP engine running the inverter control loop, battery monitoring, and load-sharing algorithms. The 10-bit ADC reads battery voltage, inverter output current, and temperature sensors, while the PWM module drives the inverter IGBTs with hardware dead-time. The CAN or UART provides status reporting to the system BMS. The 48KB Flash accommodates firmware updates via ICSP for field service.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC30F4012T-30I/ML — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC30F4012-30I/ML | DSPIC30F4012T-20E/ML | DSPIC30F4011T-30I/ML |
|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 44-QFN (8x8) | 44-QFN (8x8) - same | 44-QFN (8x8) - same | 44-QFN (8x8) - same |
| CPU Speed | 30 MIPS @ 30 MHz | 30 MIPS @ 30 MHz | 20 MIPS @ 20 MHz | 30 MIPS @ 30 MHz |
| Flash Program Memory | 48 KB | 48 KB | 48 KB | 48 KB |
| SRAM | 2 KB | 2 KB | 2 KB | 2 KB |
| EEPROM | 1 KB | 1 KB | 1 KB | 1 KB |
| CAN Peripheral | Yes | Yes | Yes | No |
| Operating Temperature | -40C to +85C | -40C to +85C | -40C to +125C (extended) | -40C to +85C |
| Packaging | Tape & Reel | Tube | Tape & Reel | Tape & Reel |
Key Differentiators
- Integrated CAN peripheral for industrial networks (vs DSPIC30F4011T-30I/ML)
- Full 30 MIPS core speed (vs DSPIC30F4012T-20E/ML)
- Tape & Reel packaging for automated assembly (vs DSPIC30F4012-30I/ML)
Design Notes
Place a 10uF tantalum or ceramic bulk capacitor plus a 0.1uF ceramic decoupling capacitor as close as possible to each VDD/VSS pin pair. The AVDD pin should be isolated from VDD by a small ferrite bead (e.g. BLM18AG601SN1) and decoupled with a separate 0.1uF plus 10uF capacitor pair. According to Microchip's dsPIC30F4011/4012 datasheet, this network suppresses switching noise from the DSP core and ADC, which is critical for clean motor-current sampling.
The 44-QFN (8x8 mm) package has an exposed thermal pad that MUST be soldered to a continuous ground copper plane for both thermal dissipation and electrical performance. Recommended: at least 1 square inch (645 mm^2) of 1 oz copper on the top layer with thermal vias to inner/lower layers. Estimated: at 30 MIPS full activity the part dissipates approximately 0.5-0.7 W, so the thermal pad connection is essential to keep junction temperature within the -40C to +85C industrial range.
Keep the analog input traces (AN0-AN9) short and away from PWM switching traces to avoid coupling noise into motor-current measurements. Route the QEA/QEB/INDX differential pair together with matched length if the encoder cable is long. Place the 30 MHz crystal within 5 mm of OSC1/OSC2 with a grounded guard ring. The ICSP PGC/PGD pins should be brought to a 0.1 inch header or test pads for in-circuit programming and debugging with MPLAB ICD 3 or REAL ICE.
Do not exceed the 5.5V absolute maximum on VDD; even brief transients above this level can damage the part. The MCLR pin requires a 10k pull-up to VDD; do not leave it floating. The PWM fault pin (FLTA) should be tied high through a 10k resistor if unused, otherwise a transient can shut down the PWM outputs unexpectedly. When migrating from the dsPIC30F4011 to dsPIC30F4012 firmware, verify that the CAN peripheral configuration is disabled if not used, as it consumes MIPS.
Compliance Information
RoHS compliant per Microchip product page. Industrial temperature grade (I suffix, -40C to +85C). For AEC-Q100 automotive qualification, choose a Q-graded variant; the DSPIC30F4012T-30I/ML is not AEC-Q100 qualified.
