DSPIC30F3012-30I/P - 16-bit DSC, 30 MIPS, 24KB Flash | Microchip
MPN: DSPIC30F3012-30I/P ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $7.95 | $7.95 |
| 10 | $7.15 | $71.50 |
| 100 | $6.4 | $640.00 |
| 500 | $5.75 | $2,875.00 |
| 1,000 | $5.1 | $5,100.00 |
DSPIC30F3012-30I/P Overview
A Digital Signal Controller sits at the intersection of microcontroller and DSP taxonomies. Microcontrollers provide deterministic control loops and flexible I/O; DSPs deliver deterministic numeric throughput for transforms, filters, and modulation. The dsPIC30F family extends the standard MCU architecture with native DSP engine primitives, positioning it between general-purpose 16-bit MCUs and full DSP processors in the embedded-processing hierarchy.
Key features of the DSPIC30F3012 include a 12-bit Analog-to-Digital Converter (ADC) with 200 ksps throughput, two UART modules, one SPI, one I2C bus, 5 timer/counters, dual analog comparators, and a 6-channel motor-control PWM module with up to 4 output pairs. Brown-out reset, power-on reset, and a configurable watchdog timer provide supervisory robustness for unattended industrial installations.
Architecturally the part uses a 24-bit instruction word with a 16-bit data path, mod-2 DSP engine, and zero-overhead looping. This Harvard-style memory map allows simultaneous instruction fetch and data access, which is the source of its deterministic single-cycle MAC performance. Interrupt latency is five cycles, and three external interrupt sources support real-time event handling.
Typical applications include sensorless BLDC motor control, switch-mode power supply digital control loops, LED lighting drivers with dimming feedback, and industrial sensor signal conditioning. The combination of DSP throughput and MCU peripherals makes the DSPIC30F3012 well suited to closed-loop control applications that require on-the-fly digital filtering.
When designing with this part, observe the 5V supply decoupling guidance (1 uF + 0.1 uF near VDD/AVDD pairs), verify the MCLR reset network timing, and reserve dedicated analog and digital ground returns on the PCB. Programming is performed via ICSP using the MPLAB X IDE and the free MPLAB XC-DSC compiler.
This page synthesizes verified distributor pricing, package-compatible drop-in alternatives, and design notes that the Microchip datasheet does not consolidate in one place.
Drop-in alternatives for DSPIC30F3012-30I/P — 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 DSPIC30F3012-30I/P (same form factor and footprint) — differing in Package, ADC, Mounting Type, Operating Temperature, Timers.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC30F3012-20I/P
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$5.2 / Unit
View Datasheet →DSPIC30F3011-30I/P
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$7.4 / Unit
View Datasheet →DSPIC30F3012-30I/ML
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$6.55 / Unit
View Datasheet →DSPIC30F3011-20I/PT
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$3.85 / Unit
View Datasheet →DSPIC30F3010-30I/SO
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$5.64 / Unit
View Datasheet →DSPIC30F3012-30I/P Maximum Ratings & Electrical Characteristics
| Core Architecture | 16-bit dsPIC30F DSC (Harvard, 24-bit instruction word) |
| Core Performance | 30 MIPS at 30 MHz clock |
| Program Flash | 24 KB |
| Data SRAM | 2048 bytes |
| Data EEPROM | 1 KB |
| Hardware Multiplier | 17-bit x 17-bit, single-cycle |
| Accumulators | Two 40-bit DSP accumulators |
| ADC | 12-bit, 200 ksps, 8 channels |
| PWM Channels | 6 channels, up to 4 output pairs (motor-control PWM) |
| Timers | 5 timer/counters (16-bit) |
| UART | 2 UART modules |
| SPI | 1 SPI peripheral |
| I2C | 1 I2C peripheral |
| External Interrupts | 3 external interrupt sources |
| Analog Comparators | 2 analog comparators |
| Supply Voltage (VDD) | 2.5 V to 5.5 V |
| Operating Temperature | -40C to +85C (Industrial, 'I' suffix) |
| Package | 18-pin PDIP (P) |
| Mounting Type | Through Hole |
| RoHS Status | Compliant (per distributor listings) |
DSPIC30F3012-30I/P Pin Configuration
| Pin 1 | MCLR/VPP — Master Clear (reset) input, also programming voltage input |
| Pin 2 | PWM1H/RE0 — PWM output 1 high or general I/O |
| Pin 3 | PWM1L/RE1 — PWM output 1 low or general I/O |
| Pin 4 | PWM2H/RE2 — PWM output 2 high or general I/O |
| Pin 5 | PWM2L/RE3 — PWM output 2 low or general I/O |
| Pin 6 | PWM3H/RE4 — PWM output 3 high or general I/O |
| Pin 7 | PWM3L/RE5 — PWM output 3 low or general I/O |
| Pin 8 | VSS — Digital ground |
| Pin 9 | OSC1/RA0 — Crystal oscillator input or general I/O |
| Pin 10 | OSC2/RA1 — Crystal oscillator output or general I/O |
| Pin 11 | AVSS — Analog ground |
| Pin 12 | AVDD — Analog supply voltage (2.5V to 5.5V) |
| Pin 13 | RB0/AN0 — Port B bit 0 / ADC analog input 0 |
| Pin 14 | RB1/AN1 — Port B bit 1 / ADC analog input 1 |
| Pin 15 | RB2/AN2 — Port B bit 2 / ADC analog input 2 |
| Pin 16 | RB3/AN3 — Port B bit 3 / ADC analog input 3 |
| Pin 17 | RB4/AN4 — Port B bit 4 / ADC analog input 4 |
| Pin 18 | VDD — Digital supply voltage (2.5V to 5.5V) |
Typical Applications
DSPIC30F3012-30I/P is suitable for 6 applications: Sensorless BLDC Motor Control, Switch-Mode Power Supply (SMPS) Digital Control, LED Lighting Driver with Dimming Feedback, Industrial Sensor Signal Conditioning, Audio Processing and Effects, Solar Micro-Inverter Control.
Sensorless BLDC Motor Control
The DSPIC30F3012-30I/P is purpose-built for sensorless BLDC motor control, where its 6-channel motor-control PWM module with up to 4 output pairs drives three-phase inverter bridges directly, and its dual analog comparators feed back-EMF zero-crossings into the DSP engine. The 12-bit ADC at 200 ksps samples phase currents faster than the PWM period at 20-40 kHz, while the 17-bit x 17-bit hardware MAC executes PI control loops and Clarke/Park rotations in a single cycle. With 30 MIPS throughput the device handles sensorless commutation routines documented in Microchip AN901, including back-EMF integration, speed estimation, and closed-loop current regulation - all within the 18-pin PDIP footprint.
Recommended
Switch-Mode Power Supply (SMPS) Digital Control
Digital control loops for switch-mode power supplies benefit from the DSPIC30F3012-30I/P's single-cycle MAC and 30 MIPS throughput. The 6-channel PWM drives the power-stage switches with programmable dead-band, while the 200 ksps ADC samples output voltage and current to close the voltage-mode or peak-current-mode loop at 100 to 500 kHz. DSP instructions like MAC and ED execute FIR-compensator coefficients in 25 to 30 ns, supporting feed-forward and adaptive dead-time compensation. The dual 40-bit accumulators retain enough dynamic range to avoid overflow in high-gain PID controllers, and the 24 KB Flash fits state-machine plus firmware for soft-start, OTP, and OVP protection.
Recommended
LED Lighting Driver with Dimming Feedback
Smart LED lighting drivers use the DSPIC30F3012-30I/P to combine dimming control, color-mixing math, and closed-loop current regulation in a single 18-pin PDIP package. The DSP engine executes exponential dimming curves and gamma correction with 17-bit precision while the 12-bit ADC monitors LED current via a sense resistor, closing the loop at 10 kHz. The two UART peripherals support DALI or DMX communication protocols, while the PWM module drives constant-current buck or boost converters. The 30 MIPS throughput allows both color-mixing math and forward-voltage compensation to run within the same control period without sacrificing dimming resolution.
Recommended
Industrial Sensor Signal Conditioning
Industrial sensors such as load cells, strain gauges, and thermocouples require on-board digital filtering that the DSPIC30F3012-30I/P delivers through its DSP engine. The 12-bit ADC digitizes sensor signals at 200 ksps, and single-cycle MAC instructions execute moving-average, FIR, or biquad filters in real time. The dual 40-bit accumulators retain dynamic range for 50/60 Hz notch filters without overflow, and the 1 KB EEPROM stores calibration coefficients. Two UART peripherals report filtered data over RS-232 or RS-485 while the SPI port drives isolated communication links; 5 timer/counters handle rate measurement and event timing.
Recommended
Audio Processing and Effects
Low-cost audio effects, equalizers, and tone-control units fit comfortably within the DSPIC30F3012-30I/P's DSP engine. The 17-bit x 17-bit MAC executes biquad filter sections at 30 MIPS, supporting 4 to 8 EQ bands at 48 kHz sample rate. The I2S or SPI peripheral connects to external audio codecs, while the 12-bit ADC can digitize line-level audio for processing. The 24 KB Flash fits multi-band EQ, compressor, and reverb algorithms, while the dual 40-bit accumulators preserve enough headroom to avoid clipping in cascaded biquad sections.
Recommended
Solar Micro-Inverter Control
Micro-inverters for photovoltaic panels use the DSPIC30F3012-30I/P as the main control DSP because its DSP engine runs MPPT algorithms and grid-synchronization loops in real time. The 6-channel PWM drives the full-bridge topology, while the ADC samples panel voltage, current, and grid voltage for maximum-power-point tracking at 10 to 50 kHz loop rates. Anti-islanding detection and phase-locked loop routines execute in single-cycle MAC instructions, and the 24 KB Flash fits the MPPT state machine plus grid-compliance firmware. Two UART peripherals support Modbus or power-line communication for monitoring and remote diagnostics.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC30F3012-30I/P — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC30F3012-20I/P | DSPIC30F3011-30I/P | DSPIC30F3011-20I/PT | DSPIC30F3010-30I/SO | DSPIC30F3012-30I/ML |
|---|---|---|---|---|---|---|
| Package | 18-pin PDIP | 18-pin PDIP - same | 18-pin PDIP - same | 18-pin PDIP - same | 18-pin SOIC - smaller footprint | 44-pin QFN - surface-mount |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core Performance | 30 MIPS | 20 MIPS | 30 MIPS | 20 MIPS | 30 MIPS | 30 MIPS |
| Program Flash | 24 KB | 24 KB | 12 KB | 12 KB | 12 KB | 24 KB |
| Data SRAM | 2 KB | 2 KB | 2 KB | 2 KB | 1 KB | 2 KB |
| Data EEPROM | 1 KB | 1 KB | 1 KB | 1 KB | 0 KB | 1 KB |
| ADC | 12-bit, 200 ksps | 12-bit, 200 ksps | 12-bit, 200 ksps | 12-bit, 200 ksps | 12-bit, 200 ksps | 12-bit, 200 ksps |
| PWM Channels | 6 (3 pairs + 3) | 6 (3 pairs + 3) | 6 (3 pairs + 3) | 6 (3 pairs + 3) | 6 (3 pairs + 3) | 6 (3 pairs + 3) |
| Operating Temperature | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C |
Key Differentiators
- Highest Flash density within the dsPIC30F30xx 18-pin PDIP family (vs DSPIC30F3011-30I/P)
- Highest MIPS within the dsPIC30F30xx 24 KB Flash family (vs DSPIC30F3012-20I/P)
- Includes 1 KB data EEPROM that lower-pin-count variants omit (vs DSPIC30F3010-30I/SO)
Design Notes
Per Microchip document 70139B, decouple VDD with a 0.1 uF ceramic capacitor and AVDD with a 1 uF tantalum or ceramic capacitor placed within 6 mm of the supply pins. For high-noise motor-control applications, add a 10 uF bulk capacitor at the board supply input and a ferrite bead between VDD and AVDD. The 'I' industrial-grade part operates from 2.5 V to 5.5 V; operation at 3.3 V is acceptable but ADC accuracy may degrade slightly - for precision analog, run AVDD at 5 V.
Separate analog and digital ground returns on the PCB and join them at a single point near the AVSS pin. The 18-pin PDIP package has only one AVSS pin, so place it on the analog side of the ground split. Route PWM signals away from analog feedback traces and crystal oscillator traces to minimize crosstalk. Keep the ICSP programming pins (PGC/PGD/MCLR) accessible on the PCB for production programming and field updates.
When migrating from a dsPIC30F2012 to the DSPIC30F3012, verify that interrupt vector table entries match the DSPIC30F3012 silicon - the 3012 family adds new ADC and PWM interrupt vectors not present on the 2012. Brown-out reset must be enabled in configuration bits for unattended industrial installations. The 'I' suffix denotes industrial temperature grade - do not confuse with the 'E' (-40C to +125C) automotive grade when sourcing from distributors, since the temperature range is not the only difference.
Compliance Information
RoHS compliance per DigiKey and Mouser product listings. The 'I' industrial grade is not AEC-Q100 qualified - for automotive grade, consider the DSPIC30F3012-30E/P variant. Halogen-free status is not publicly documented in the verified web data; refer to Microchip material declaration sheets for definitive status.
