DSPIC30F4012T-20E/ML - 16-Bit DSC 48KB Flash Motor Control | Microchip
MPN: DSPIC30F4012T-20E/ML ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $6.5 | $6.50 |
| 10 | $5.85 | $58.50 |
| 100 | $5.2 | $520.00 |
| 500 | $4.65 | $2,325.00 |
| 1,000 | $4.15 | $4,150.00 |
| 3,000 | $3.7 | $11,100.00 |
DSPIC30F4012T-20E/ML Overview
A Digital Signal Controller (DSC) is a hybrid between a microcontroller (MCU) and a digital signal processor (DSP), inheriting the deterministic interrupt response and peripheral integration of an MCU while adding DSP-grade computational throughput for real-time control loops. Within the broader taxonomy, the dsPIC30F sits between 8-bit PIC microcontrollers and 32-bit ARM Cortex-M devices, offering deterministic single-cycle DSP performance at 5V supply rails that ARM parts often cannot match.
Key features include 48 KB Flash program memory (16K x 24 words), 2 KB SRAM, 1 KB EEPROM, 10-bit ADC up to 500 ksps with up to 9 analog input channels, motor-control PWM with complementary outputs and programmable dead time, quadrature encoder interface, three 16-bit timers, plus standard dsPIC30F peripherals including UART, SPI, I2C, and CAN.
The architectural highlight of the dsPIC30F family is the dual-data-fetch DSP engine, which allows the core to read two operands from X and Y data memory in a single instruction cycle - critical for implementing Park/Clarke transforms, PI controllers, and space-vector modulation in field-oriented control (FOC) firmware. The integrated motor-control PWM module supports up to six PWM outputs with hardware dead-time generation, eliminating software timing jitter in three-phase inverter drives.
Typical applications include BLDC and PMSM motor drives, sensored and sensorless FOC, industrial servo control, automotive body and powertrain ECUs, switch-mode power supply (SMPS) digital control, and UPS inverters. The -40C to +125C industrial temperature range qualifies the DSPIC30F4012 for harsh-environment deployments.
When designing with this part, allocate Flash into a bootloader region and an application region to enable in-system firmware updates via CAN or UART, and ensure the exposed thermal pad (EP) is soldered to a continuous copper pour to meet thermal and electrical ground requirements specified in the manufacturer datasheet.
This page synthesizes distributor pricing across tape-and-reel and tray quantities, parametric drop-in alternatives, and practical motor-control design notes not found in the manufacturer datasheet alone.
Drop-in alternatives for DSPIC30F4012T-20E/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-20E/ML (same form factor and footprint) — differing in ADC, Package, Operating Temperature, Communication, Core.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC30F4012-20E/ML
✅ Drop-In✓ In Stock
$6.8 / Unit
View Datasheet →DSPIC30F4012-30I/ML
✅ Drop-In✓ In Stock
$4.79 / Unit
View Datasheet →DSPIC30F4011T-20I/ML
✅ Drop-In✓ In Stock
$5.95 / Unit
View Datasheet →DSPIC30F4011T-30I/ML
✅ Drop-In✓ In Stock
$5.2 / Unit
View Datasheet →DSPIC30F4012T-20E/ML Maximum Ratings & Electrical Characteristics
| Core | dsPIC30F 16-bit DSC (modified Harvard) |
| Instruction Throughput | 20 MIPS at 20 MHz |
| Program Memory (Flash) | 48 KB (16K x 24 words) |
| Data RAM | 2 KB |
| EEPROM | 1 KB |
| Operating Voltage | 2.5 V to 5.5 V |
| Operating Temperature | -40 C to +125 C (industrial) |
| ADC | 10-bit, 500 ksps |
| Motor Control PWM | 6 output channels with dead-time and complementary outputs |
| Quadrature Encoder Interface | Yes (QEI module) |
| UART | 2 channels |
| SPI | 1 channel |
| I2C | 1 channel |
| CAN | 1 channel (CAN 2.0B) |
| Timers | 3 x 16-bit |
| Package | 44-pin QFN (8x8 mm) with exposed pad (ML) |
| Mounting Type | Surface Mount |
| Packaging | Tape & Reel (TR suffix) |
| RoHS Status | Compliant |
| Multiplying Method | 17 x 17-bit MAC in 1 cycle |
| Instruction Set | dsPIC30F, ~84 base instructions |
DSPIC30F4012T-20E/ML Pin Configuration
| Pin 1 | SDA/RXD/RF4 — I2C SDA / UART RX |
| Pin 2 | SCL/TXD/RF5 — I2C SCL / UART TX |
| Pin 3 | UPDN — Programming high/low |
| Pin 4 | RG0 — General I/O (ICSP) |
| Pin 5 | RG1 — General I/O (ICSP) |
| Pin 6 | AVDD — Analog supply |
| Pin 7 | AVSS — Analog ground |
| Pin 8 | AN0 — Analog input 0 / IC2 |
| Pin 9 | AN1 — Analog input 1 / IC2 |
| Pin 10 | AN2 — Analog input 2 |
| Pin 11 | AN3 — Analog input 3 |
| Pin 12 | AN4 — Analog input 4 / QEA |
| Pin 13 | AN5 — Analog input 5 / QEB |
| Pin 14 | AN6 — Analog input 6 / INDX |
| Pin 15 | AN7 — Analog input 7 |
| Pin 16 | AN8 — Analog input 8 |
| Pin 17 | OC2/RD1 — Output compare 2 / PWM |
| Pin 18 | OC3/RD2 — Output compare 3 / PWM |
| Pin 19 | OC4/RD3 — Output compare 4 / PWM |
| Pin 20 | RD0/EMUD — I/O / ICSP data |
| Pin 21 | RD8/RC15 — I/O / PWM-L |
| Pin 22 | RD9/RC13 — I/O / PWM-L |
| Pin 23 | RD10/RC12 — I/O / PWM-L |
| Pin 24 | RD11/RC11 — I/O / PWM-L |
| Pin 25 | RD12 — General I/O |
| Pin 26 | RD13 — General I/O |
| Pin 27 | RD14 — General I/O / CAN RX |
| Pin 28 | RD15 — General I/O / CAN TX |
| Pin 29 | RC13 — PWM-H output |
| Pin 30 | RC14 — PWM-H output |
| Pin 31 | PWM1H/RB12 — PWM channel 1 high-side |
| Pin 32 | PWM1L/RB13 — PWM channel 1 low-side |
| Pin 33 | PWM2H/RB14 — PWM channel 2 high-side |
| Pin 34 | PWM2L/RB15 — PWM channel 2 low-side |
| Pin 35 | PWM3H/RF6 — PWM channel 3 high-side |
| Pin 36 | PWM3L/RF7 — PWM channel 3 low-side |
| Pin 37 | RB0 — External interrupt 0 |
| Pin 38 | RB1 — External interrupt 1 |
| Pin 39 | RB2 — External interrupt 2 |
| Pin 40 | RB3 — External interrupt 3 |
| Pin 41 | RB4 — External interrupt 4 |
| Pin 42 | TDI/RA8 — JTAG TDI / GPIO |
| Pin 43 | TCK/RA9 — JTAG TCK / GPIO |
| Pin 44 | EP — Exposed pad - thermal/ground |
Typical Applications
DSPIC30F4012T-20E/ML is suitable for 7 applications: BLDC Motor Driver (Sensorless FOC), Industrial Servo Drive / CNC Axis Controller, Automotive ECU (Body / Powertrain Auxiliary), Switch-Mode Power Supply (SMPS) Digital Control, Uninterruptible Power Supply (UPS) Inverter, Sensorless Fan / Pump Controller, Industrial HVAC / Variable-Frequency Drive (VFD).
BLDC Motor Driver (Sensorless FOC)
Why DSPIC30F4012T-20E/ML fits: With 20 MIPS throughput, a 17x17-bit single-cycle MAC, and an integrated 6-channel motor-control PWM with hardware dead-time insertion, the DSPIC30F4012T-20E/ML executes sensorless field-oriented control of a BLDC/PMSM motor inside one PWM period (typical 50 us at 20 kHz switching). How it is used: The three PWM complementary pairs drive the three-phase inverter FETs directly; the 10-bit ADC samples two shunt resistors within the dead-time interval for Clarke/Park transformation. Trade-off vs 32-bit Cortex-M parts: the 4012 simplifies 5V gate-driver interface but constrains firmware headroom under 20 MIPS - reserve 30% of instruction cycles for the estimator loop.
Recommended
Industrial Servo Drive / CNC Axis Controller
Why DSPIC30F4012T-20E/ML fits: The QEI (Quadrature Encoder Interface) module decodes quadrature A/B/Z pulses from an encoder at the full 20 MIPS interrupt rate without burdening the CPU, ideal for closed-loop servo positioning. The -40C to +125C temperature grade and 5V ADC input range permit direct interface to industrial 5V Hall sensors and encoder outputs. How it is used: One 4012 runs current-loop and velocity-loop at 8 kHz while CAN or UART exposes commanded-position variables to a higher-level CNC controller. Trade-off: 48 KB Flash is tight for safety-category SIL-2 libraries - typical implementation fits bootloader + 2 firmware variants.
Recommended
Automotive ECU (Body / Powertrain Auxiliary)
Why DSPIC30F4012T-20E/ML fits: The integrated CAN 2.0B controller, 1 KB EEPROM for non-volatile parameter storage, and extended -40C to +125C temperature grade make the DSPIC30F4012T-20E/ML a natural fit for non-safety-critical automotive body ECUs (window lifters, HVAC dampers, fuel pumps). Operating voltage up to 5.5V tolerates automotive load-dump events after appropriate external protection. How it is used: CAN bus for OBD-II/vehicle network messaging; PWM and ADC manage motor/actuator feedback in a single chip. Trade-off: This part is NOT AEC-Q100 qualified - for safety-critical applications use the dsPIC33F EV family.
Recommended
Switch-Mode Power Supply (SMPS) Digital Control
Why DSPIC30F4012T-20E/ML fits: The high-resolution PWM (nanosecond-edge placement) and fast 500 ksps 10-bit ADC support average-current and peak-current-mode control of a digital SMPS at switching frequencies of 100-500 kHz. The single-cycle MAC enables digital compensator compute (PI, pole-zero) at under 1 us per switching cycle. How it is used: One ADC channel senses the output voltage, another senses inductor current; a state-machine compensator computes PWM duty update per cycle. Trade-off: Lower ADC resolution (10-bit) requires careful voltage-divider scaling and may be inadequate for high-line (>48V) telecom PSUs.
Recommended
Uninterruptible Power Supply (UPS) Inverter
Why DSPIC30F4012T-20E/ML fits: The 6-output motor-control PWM and QEI hardware provide direct inverter/Leg infrastructure, while 48 KB Flash stores digital sine-PWM, soft-start, and grid-synchronization code. The 5V ADC tolerance simplifies battery-bank voltage measurement through resistive dividers. How it is used: One PWM channel drives the battery charger, three complementary pairs drive the H-bridge inverter legs, and QEI handles grid-frequency feedback for PLL synchronization. Trade-off: For inverter power levels above 5 kW, parallel multiple 4012 units with a master coordinator; this part has no hardware sync mechanism above PWM-channel level.
Recommended
Sensorless Fan / Pump Controller
Why DSPIC30F4012T-20E/ML fits: The 20 MIPS DSP engine runs back-EMF zero-crossing detection and minimum-speed startup routines for sensorless fan/pump control, eliminating Hall sensors and reducing BOM cost. The 5V-tolerant ADC interfaces directly with shunt resistors in 12V/24V brushless DC pumps. How it is used: ADC samples back-EMF during PWM off-time through a low-pass network; firmware computes commutation timing without rotor-position sensors. Trade-off: The -40C to +125C grade handles enclosed motor environments, but high-inductance pumps may still require soft-commutation to suppress audible noise from current transitions.
Recommended
Industrial HVAC / Variable-Frequency Drive (VFD)
Why DSPIC30F4012T-20E/ML fits: The combination of 20 MIPS DSP throughput, 6-PWM outputs with hardware dead time, and a 9-channel 10-bit ADC suits low-voltage three-phase induction motor drives found in HVAC blowers and pumps operating from 110-220V mains. How it is used: One DSP runs V/f curve, three PWM channels drive the three-phase inverter FETs, and ADC channels sample DC-bus voltage plus two phase currents. Trade-off: For VFDs rated above 1 HP, prefer dsPIC33F for higher MIPS headroom; the 4012 can drive fractional-HP VFDs but thermal rise must be managed when running at full 20 MIPS continuously.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC30F4012T-20E/ML — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC30F4012-20E/ML | DSPIC30F4012-30I/ML | DSPIC30F4011T-20I/ML | DSPIC30F4011T-30I/ML | DSPIC30F4011T-20E/PT |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 44-QFN (8x8) | 44-QFN (8x8) - same | 44-QFN (8x8) - same | 44-QFN (8x8) - same | 44-QFN (8x8) - same | 44-TQFP (different) |
| MIPS | 20 MIPS | 20 MIPS | 30 MIPS | 20 MIPS | 30 MIPS | 20 MIPS |
| Flash Memory | 48 KB | 48 KB | 48 KB | 36 KB | 36 KB | 36 KB |
| RAM | 2 KB | 2 KB | 2 KB | 2 KB | 2 KB | 2 KB |
| Operating Temperature | -40C to +125C | -40C to +125C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +125C |
| ADC | 10-bit, 500 ksps | 10-bit, 500 ksps | 10-bit, 500 ksps | 10-bit, 500 ksps | 10-bit, 500 ksps | 10-bit, 500 ksps |
| PWM Channels | 6 outputs (3 complementary pairs) | 6 outputs (3 complementary pairs) | 6 outputs (3 complementary pairs) | 6 outputs (3 complementary pairs) | 6 outputs (3 complementary pairs) | 6 outputs (3 complementary pairs) |
| QEI Module | Yes | Yes | Yes | No | No | No |
| Carrier Package | Tape & Reel | Tube | Tube | Tape & Reel | Tape & Reel | Tape & Reel |
Key Differentiators
- Highest Flash density in the dsPIC30F4012 QFN family (vs DSPIC30F4011T-20I/ML)
- Wider operating temperature range than higher-MIPS drop-in (vs DSPIC30F4012-30I/ML)
- Includes QEI module absent on the 4011 family (vs DSPIC30F4011T-30I/ML)
- Tape & Reel packaging for high-volume assembly (vs DSPIC30F4012-20E/ML (Tube))
Design Notes
Decouple each VDD/AVDD pair with a 100 nF X7R ceramic capacitor placed within 5 mm of the package pin, plus a bulk 10 uF tantalum or ceramic capacitor. Use separate analog (AVDD) and digital (VDD) supplies tied at a single point near the IC, or filter the analog rail with a ferrite bead and 10 uF cap to keep switching noise from the motor-control PWM from corrupting ADC conversions.
Solder the exposed thermal pad (EP) of the 44-QFN to a continuous copper pour of at least 1 square inch on the top layer, with thermal vias stitching to inner ground planes. Without proper EP soldering, junction temperature can rise 30-40 C above ambient at full 20 MIPS operation, breaching the -40C to +125C industrial ceiling in enclosed motor enclosures.
Route the 6 PWM complementary outputs as matched-length traces (within 5 mm tolerance) to prevent timing skew that generates DC-bias current in the motor windings. Keep ADC traces (AN0-AN8) away from PWM switching nodes by routing on an opposite layer or using guard ground islands - a 200 mV coupled transient on AN0 can corrupt current-loop feedback at 8 kHz sampling.
Estimated: At 20 MIPS continuous operation drawing approximately 35 mA typical, the 4012 burns ~175 mW of internal power at 5V. In a sealed motor-housing ambient of 60C, this can push junction temperature toward 100C - confirm thermal margins via the manufacturer's theta_JC and theta_JA figures for the QFN-44 package, and derate clock speed to 18 MIPS for harsh environments.
Place the 4.0 MHz-10.0 MHz primary oscillator crystals as close as possible to the OSC1/OSC2 pins with load capacitors rated per the manufacturer datasheet. Keep high-current motor traces more than 10 mm away from the oscillator traces to avoid frequency drift under load transients - motor inrush events can momentarily pull VDD down 0.5V if bulk capacitors are undersized.
Compliance Information
RoHS compliant per Microchip product page; not AEC-Q100 qualified - safety-critical automotive designs must use dsPIC33F EV-family. Conflict-minerals compliance per Microchip corporate policy.
