DSPIC30F3012T-30I/SO - 16-Bit DSC, 30 MIPS, 24KB Flash | Microchip
MPN: DSPIC30F3012T-30I/SO ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $6.2 | $6.20 |
| 10 | $5.58 | $55.80 |
| 100 | $4.95 | $495.00 |
| 500 | $4.43 | $2,215.00 |
| 1,000 | $3.98 | $3,980.00 |
DSPIC30F3012T-30I/SO Overview
A Digital Signal Controller (DSC) is a hybrid device class that combines a microcontroller's deterministic control peripherals with a Digital Signal Processor (DSP)'s single-cycle MAC (multiply-accumulate) engine. Within the broader taxonomy, the DSPIC30F3012 belongs to: DSC -> microcontroller -> embedded processor -> semiconductor. The dsPIC30F series was Microchip's first DSC family, designed for embedded motor control, digital power conversion, and sensor signal conditioning where the engineer needs both real-time control loops and on-chip DSP throughput in a single 5 V device.
Key features of the DSPIC30F3012 include a 16-bit dsPIC30F core with single-cycle 16x16 MAC, dual 40-bit accumulators, a 10-bit ADC with up to 9 channels and 1 MSPS conversion rate, three 16-bit timers, an input capture module, output compare/PWM modules, and serial connectivity via I2C, SPI, and UART/USART. The 5 V operating range (2.5 V to 5.5 V) suits industrial and automotive 12 V regulated rails.
Architecturally, the device combines a modified Harvard bus structure with a DSP engine, allowing C-compiled control code and hand-optimized DSP kernels (FFT, FIR, IIR) to share one die. The Flash supports self-programming under firmware control, enabling in-field bootloader updates — a feature uncommon in DSPs of this generation.
Typical applications include BLDC and PMSM motor control, switched-mode power supply (SMPS) digital control loops, sensorless fan/pump controllers, three-phase UPS inverters, audio processing front-ends, and industrial sensor signal conditioning. Engineers select this DSC when a single-chip solution must perform closed-loop control and DSP-class filtering without a separate DSP + MCU pair.
When designing with the DSPIC30F3012, ensure the 5 V supply rail is decoupled with a 10 µF bulk + 0.1 µF ceramic pair close to the VDD pins, and route the analog AVSS/AVDD pair as a star-ground away from switching nodes. The MPLAB XC-DSC compiler supports standard ANSI C and DSP intrinsics, so a free evaluation copy is sufficient for code development before purchase.
Drop-in alternatives for DSPIC30F3012T-30I/SO — 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 DSPIC30F3012T-30I/SO (same form factor and footprint) — differing in ADC, Package, Timers, Operating Temperature, Core Architecture.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC30F3012-30I/SO
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC30F3012-20I/SO
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC30F3012-20E/SO
✅ Drop-In✓ In Stock
$5.95 / Unit
View Datasheet →DSPIC30F3010-30I/SO
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$5.64 / Unit
View Datasheet →DSPIC30F3010-20I/SO
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$4.1 / Unit
View Datasheet →DSPIC30F3012T-30I/SO Maximum Ratings & Electrical Characteristics
| Core | dsPIC30F (16-bit DSC) |
| CPU Bit Width | 16-bit |
| Maximum CPU Speed | 30 MIPS (15 MHz oscillator with 4x PLL) |
| Program Memory (Flash) | 24 KB (8K x 24 words) |
| Data RAM | 2 KB |
| Data EEPROM | 1 KB (1K x 8) |
| ADC | 10-bit, up to 9 channels, 1 MSPS |
| Supply Voltage (VDD) | 2.5 V to 5.5 V (5 V typical) |
| Operating Temperature | -40 °C to +85 °C (Industrial, 'I' suffix) |
| Timers | 3 x 16-bit |
| Input Capture | Yes |
| Output Compare / PWM | Yes |
| Serial Interfaces | I2C, SPI, UART/USART |
| Package | 18-SOIC (0.295 inch / 7.50 mm width) |
| Mounting Type | Surface Mount |
| Packaging | Tape & Reel (T suffix) |
| RoHS Status | Compliant |
DSPIC30F3012T-30I/SO Pin Configuration
| Pin 1 | MCLR — Master Clear (reset) input, active-low |
| Pin 2 | AN0/VREF+/CN2/RB0 — Analog input 0 / positive voltage reference / change notification |
| Pin 3 | AN1/VREF-/CN3/RB1 — Analog input 1 / negative voltage reference / change notification |
| Pin 4 | AN2/SS1/CN4/RB2 — Analog input 2 / SPI1 slave select / change notification |
| Pin 5 | AN3/CN5/RB3 — Analog input 3 / change notification |
| Pin 6 | VDD — Positive supply voltage (2.5 V to 5.5 V) |
| Pin 7 | VSS — Ground reference |
| Pin 8 | OSC1/CLKIN — Oscillator crystal input / external clock input |
| Pin 9 | OSC2/CLKOUT — Oscillator crystal output / clock output |
| Pin 10 | FLTA/INT0/CN6/RC13 — PWM fault input / external interrupt 0 / change notification |
| Pin 11 | U1ATX/CN17/RF3 — UART1 transmit / change notification |
| Pin 12 | U1ARX/CN18/RF2 — UART1 receive / change notification |
| Pin 13 | PWM1H/RE0 — PWM output 1 high side |
| Pin 14 | PWM1L/RE1 — PWM output 1 low side |
| Pin 15 | AVDD — Analog positive supply voltage |
| Pin 16 | AVSS — Analog ground reference |
| Pin 17 | PWM2H/RE2 — PWM output 2 high side |
| Pin 18 | PWM2L/RE3 — PWM output 2 low side |
Typical Applications
DSPIC30F3012T-30I/SO is suitable for 6 applications: BLDC and PMSM Motor Control, Switched-Mode Power Supply (SMPS) Digital Control, Sensorless Fan and Pump Controllers, Audio Signal Processing Front-End, Industrial Sensor Signal Conditioning, Three-Phase UPS Inverter Control.
BLDC and PMSM Motor Control
The DSPIC30F3012T-30I/SO is ideally matched to BLDC and PMSM motor control loops where both deterministic commutation timing and on-chip DSP filtering are required in a single 5 V device. Its 30 MIPS core with single-cycle 16x16 MAC executes Field-Oriented Control (FOC) and space-vector PWM routines in real time, while the 10-bit ADC at 1 MSPS samples phase currents synchronously with the PWM carrier. The 2 KB SRAM accommodates state-estimator buffers and Clark/Park transform scratch, while the 1 KB EEPROM stores calibrated motor parameters and speed-loop gains across power cycles. The 18-SOIC wide footprint integrates cleanly into compact motor-drive PCBs.
Recommended
Switched-Mode Power Supply (SMPS) Digital Control
In digitally-controlled SMPS applications such as PFC, LLC, and full-bridge converters, the DSPIC30F3012T-30I/SO executes average-current-mode and peak-current-mode control loops at high switching frequencies. Its 30 MIPS throughput provides ample margin for closed-loop regulation cycles at 100 kHz to 500 kHz PWM rates, and the 1 MSPS ADC samples the feedback loop with under 1 µs latency. The on-chip DSP engine implements Type-II and Type-III compensators efficiently via single-cycle MAC operations, replacing traditional analog op-amp compensator networks. The 24 KB Flash stores lookup tables, soft-start profiles, and fault-handling state machines.
Recommended
Sensorless Fan and Pump Controllers
For sensorless BLDC fan and pump controllers used in HVAC and industrial cooling, the DSPIC30F3012T-30I/SO delivers the BEMF (back-EMF) zero-crossing detection and speed-loop control needed for variable-speed operation without Hall sensors. Its 30 MIPS processing budget runs sensorless trapezoidal commutation algorithms with start-up ramp control, while the 1 KB EEPROM stores RPM/temperature curves and fault logs across power cycles. The 2.5 V to 5.5 V supply range draws directly from a 12 V or 24 V system rail via a small linear regulator. The 18-SOIC wide package is compact enough for inline fan-hub PCBs.
Recommended
Audio Signal Processing Front-End
The DSPIC30F3012T-30I/SO's single-cycle 16x16 MAC engine and dual 40-bit accumulators make it well-suited for audio front-end processing tasks such as FIR filters, equalizers, and active noise cancellation. Its 30 MIPS throughput sustains 48 kHz audio sampling with a 200-tap FIR filter at real-time rates, and the 1 MSPS ADC captures pre-processed analog audio. The 24 KB Flash stores filter coefficients and presets, while the 2 KB SRAM holds delay-line buffers for IIR and reverb processing. The 5 V supply integrates with legacy analog audio chains without level shifters.
Recommended
Industrial Sensor Signal Conditioning
For industrial sensor conditioning applications such as load-cell amplification, thermocouple linearization, and strain-gauge bridge readout, the DSPIC30F3012T-30I/SO combines a 10-bit 1 MSPS ADC with on-chip DSP filtering for digital post-processing of slow analog signals. Its 30 MIPS throughput runs multi-stage IIR low-pass filters and linearization lookup tables, while the 1 KB EEPROM stores calibration constants. The -40 °C to +85 °C industrial temperature range handles factory-floor environments, and the 18-SOIC wide package fits standard industrial sensor housings.
Recommended
Three-Phase UPS Inverter Control
In three-phase UPS (Uninterruptible Power Supply) inverters, the DSPIC30F3012T-30I/SO executes sinusoidal PWM generation with grid-synchronization PLL routines while monitoring DC-bus voltage and output current. Its 30 MIPS core sustains dual-loop control (voltage outer loop and current inner loop) at 20 kHz switching rates, while the on-chip DSP engine implements notch filters to suppress grid harmonics. The 2 KB SRAM holds per-phase state variables, and the 1 KB EEPROM stores grid-code parameters and fault-event logs. The wide-supply 5 V range tolerates noisy industrial bus voltages common in UPS installations.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC30F3012T-30I/SO — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC30F3012-30I/SO | DSPIC30F3012-20I/SO | DSPIC30F3012-20E/SO | DSPIC30F3010-30I/SO | DSPIC30F3010-20I/SO |
|---|---|---|---|---|---|---|
| Package | 18-SOIC (0.295 inch / 7.50 mm) | 18-SOIC - same | 18-SOIC - same | 18-SOIC - same | 18-SOIC - same | 18-SOIC - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core | dsPIC30F 16-bit DSC | dsPIC30F 16-bit DSC | dsPIC30F 16-bit DSC | dsPIC30F 16-bit DSC | dsPIC30F 16-bit DSC | dsPIC30F 16-bit DSC |
| Maximum CPU Speed | 30 MIPS | 30 MIPS | 20 MIPS (-33%) | 20 MIPS (-33%) | 30 MIPS | 20 MIPS (-33%) |
| Program Memory (Flash) | 24 KB (8K x 24) | 24 KB | 24 KB | 24 KB | 28 KB (+17%) | 28 KB (+17%) |
| Data RAM | 2 KB | 2 KB | 2 KB | 2 KB | 2 KB | 2 KB |
| Data EEPROM | 1 KB | 1 KB | 1 KB | 1 KB | 1 KB | 1 KB |
| Operating Temperature | -40 °C to +85 °C (Industrial) | -40 °C to +85 °C | -40 °C to +85 °C | -40 °C to +125 °C (Extended) | -40 °C to +85 °C | -40 °C to +85 °C |
| ADC | 10-bit, 9 channels, 1 MSPS | 10-bit, 9 channels, 1 MSPS | 10-bit, 9 channels, 1 MSPS | 10-bit, 9 channels, 1 MSPS | 10-bit, 9 channels, 1 MSPS | 10-bit, 9 channels, 1 MSPS |
| Packaging Format | Tape & Reel (T suffix) | Tube | Tube | Tube | Tube | Tube |
Key Differentiators
- Industry-standard 18-SOIC wide footprint with extensive dsPIC30F family ecosystem (vs DSPIC30F3010-30I/SO)
- 30 MIPS performance grade at standard industrial temperature (vs DSPIC30F3012-20I/SO)
- Tape & Reel packaging optimized for SMT high-volume assembly (vs DSPIC30F3012-30I/SO)
Design Notes
Decouple the DSPIC30F3012T-30I/SO's VDD/VSS pair with a 10 µF tantalum or ceramic bulk capacitor plus a 0.1 µF ceramic placed within 5 mm of the VDD pin (pin 6). The AVDD/AVSS pair (pins 15 and 16) should have its own 10 µF + 0.1 µF decoupling network to isolate the ADC analog supply from digital switching noise. A ferrite bead between VDD and AVDD further reduces ADC-conversion-correlated noise. Estimated: at 30 MIPS with all peripherals enabled, core current draw is approximately 50 mA from a 5 V supply.
Route the analog AVSS trace as a star-ground connection back to the power entry point, never as a daisy-chained ground loop shared with high-current digital returns. Keep the OSC1/OSC2 crystal traces (pins 8 and 9) short and symmetric, with the load capacitors within 3 mm of the pins. The 18-SOIC wide package offers generous trace-routing space; route ADC analog inputs (AN0–AN3) away from PWM outputs (PWM1H/L, PWM2H/L) to minimize capacitive coupling. Place a ground pour on the top layer under the IC for thermal spreading.
Do not exceed the absolute maximum VDD of 5.5 V — even brief transients above this level can latch-up the CMOS core. The MCLR pin (pin 1) must be tied to VDD through a 10 kΩ pull-up; a direct short to VDD will prevent in-circuit serial programming (ICSP). When using the internal RC oscillator instead of an external crystal, configure the FOSC device-configuration bits via the MPLAB ICSP before code execution — leaving FOSC at the default may prevent the oscillator from starting. The PWM module's fault input (FLTA, pin 10) should be pulled high to VDD if unused, to prevent spurious shutdown events.
Compliance Information
RoHS compliant per Microchip product page. AEC-Q100 not qualified — the DSPIC30F3012-20E/SO is the closest extended-temperature variant for harsh-environment applications. Halogen-free and lead-free confirmed per Microchip material declarations.