DSPIC30F2012T-20I/SO - 16-bit DSC, 20 MIPS, 12KB Flash | Microchip
MPN: DSPIC30F2012T-20I/SO ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $7.2 | $7.20 |
| 10 | $6.48 | $64.80 |
| 100 | $5.5 | $550.00 |
| 500 | $4.78 | $2,390.00 |
| 1,000 | $4.1 | $4,100.00 |
DSPIC30F2012T-20I/SO Overview
A Digital Signal Controller (DSC) is a hybrid device class that combines a deterministic microcontroller (MCU) with the high-throughput arithmetic of a Digital Signal Processor (DSP). In the system hierarchy, the DSC sits between a conventional MCU and a full DSP, while the broader dsPIC30F family belongs to the Microchip 16-bit DSC portfolio under the company's 16-bit embedded controller line. DSCs are optimized for closed-loop control and signal conditioning tasks where both fast math (IIR/FIR filters, FFTs, PID loops) and classical MCU housekeeping (UART, timers, GPIO) must coexist on a single die.
Key features of the DSPIC30F2012T-20I/SO include a 16-bit data path with a 40 MHz internal oscillator, hardware MAC (multiply-accumulate) for DSP instructions, an integrated 10-bit ADC (typical for the family), PWM output channels, Brown-Out Detect (BOD), Power-On Reset (POR), and a Watchdog Timer (WDT). The CMOS process supports a wide operating voltage range suitable for 5V-tolerant designs and ultra-low standby current for battery-friendly modes.
Architecturally, the device pairs a 16-bit modified Harvard core with a barrel shifter, hardware loop support, and DSP-aware addressing modes. Boundary-scan (JTAG) is supported, enabling in-circuit programming and on-board debug through Microchip's MPLAB ICD toolchain and the MPLAB XC-DSC C/C++ compiler.
Typical applications include motor control (BLDC, PMSM, sensored/unsensored), digital power conversion (PFC, synchronous rectification), sensor conditioning, audio processing, UPS and inverter control, and industrial automation front-ends. The 5V-tolerant wide-voltage operation is well matched to 24V industrial bus rails after a small front-end regulator.
Design tip: route the analog AVSS/AVDD pair separately from VSS/VDD, place the VDDCORE decoupling capacitor as close as the layout allows, and use Microchip's Motor Control PWM and ADC triggering features for deterministic switching-edge sampling. The 'T' suffix denotes Tape & Reel; the 'I' suffix denotes the industrial -40C to +85C temperature grade.
This page synthesizes distributor pricing, same-family Microchip drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.
Drop-in alternatives for DSPIC30F2012T-20I/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 DSPIC30F2012T-20I/SO (same form factor and footprint) — differing in Core Architecture, Package, Packaging, ADC Channels, ADC Resolution.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC30F2012-20I/SO
✅ Drop-In✓ In Stock
$2.41 / Unit
View Datasheet →DSPIC30F2012T-20I/SOG
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC30F2012-20E/SO
✅ Drop-In✓ In Stock
$2.85 / Unit
View Datasheet →DSPIC30F2011T-20E/SO
✅ Drop-In✓ In Stock
$3.85 / Unit
View Datasheet →DSPIC30F2012T-30I/SO
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC30F2012T-20I/SO Maximum Ratings & Electrical Characteristics
| Core Architecture | dsPIC30F 16-bit Digital Signal Controller |
| Program Memory (Flash) | 12 KB (4K x 24 words) |
| Data RAM | 1 KB (1024 words) |
| Instruction Throughput | 20 MIPS |
| Clock Frequency | 40 MHz |
| Operating Voltage Range | 2.5 V to 5.5 V |
| Package | 28-pin SOIC (SO) wide-body, surface mount |
| Mounting Type | Surface Mount |
| Temperature Range | -40C to +85C (Industrial) |
| Process Technology | CMOS |
| Data Bus Width | 16-bit |
| Program Memory Width | 24-bit |
| Peripherals | Brown-out Detect/Reset, POR, PWM, WDT |
| Special Features | Barrel shifter, boundary scan (JTAG), low-power modes |
| RoHS Status | Compliant |
| Lead-Free | Yes |
| Packaging Form | Tape & Reel |
DSPIC30F2012T-20I/SO Pin Configuration
| Pin 1 | EMUD/AN0/VREF+ — ICD data / analog input 0 / ADC voltage reference plus |
| Pin 2 | EMUC/AN1/VREF- — ICD clock / analog input 1 / ADC voltage reference minus |
| Pin 3 | AN2 — Analog input 2 |
| Pin 4 | AN3 — Analog input 3 |
| Pin 5 | AN4 — Analog input 4 |
| Pin 6 | AN5 — Analog input 5 |
| Pin 7 | AVDD — Analog supply voltage |
| Pin 8 | AVSS — Analog ground |
| Pin 9 | OSC1/CLKI — Crystal oscillator input / external clock in |
| Pin 10 | OSC2/CLKO — Crystal oscillator output / clock out |
| Pin 11 | PWM1L — PWM output 1, low side |
| Pin 12 | PWM1H — PWM output 1, high side |
| Pin 13 | PWM2L/PWM3L — PWM output 2 or 3, low side (multiplexed) |
| Pin 14 | PWM2H/PWM3H — PWM output 2 or 3, high side (multiplexed) |
| Pin 15 | FLTA/INT0 — PWM fault input / external interrupt 0 |
| Pin 16 | TMR1/TMR2 — Timer1 / Timer2 external clock or gate |
| Pin 17 | U1RX/SDI1 — UART1 RX / SPI1 data in |
| Pin 18 | U1TX/SDO1 — UART1 TX / SPI1 data out |
| Pin 19 | SCK1 — SPI1 clock |
| Pin 20 | SS1 — SPI1 slave select |
| Pin 21 | VDD — Digital supply voltage |
| Pin 22 | VSS — Digital ground |
| Pin 23 | RB0/CN1 — Port B I/O / change notification |
| Pin 24 | RB1/CN2 — Port B I/O / change notification |
| Pin 25 | RB2/CN3 — Port B I/O / change notification |
| Pin 26 | RB3/CN4 — Port B I/O / change notification |
| Pin 27 | RC14/OSC2 — Port C I/O / secondary oscillator |
| Pin 28 | RC15/OSC1 — Port C I/O / secondary oscillator |
Typical Applications
DSPIC30F2012T-20I/SO is suitable for 6 applications: BLDC / PMSM Motor Control, Digital Power Conversion (PFC / Inverter), Sensor Signal Conditioning, Industrial Automation Front-End, Audio Processing / Active Filter, Uninterruptible Power Supply (UPS) Controller.
BLDC / PMSM Motor Control
The DSPIC30F2012T-20I/SO is engineered for sensorless and sensored BLDC/PMSM motor control up to several hundred watts. Its 20 MIPS DSP engine executes field-oriented control (FOC) with Park/Clarke transforms in well under one PWM period, while the dedicated Motor Control PWM module generates complementary 3-phase outputs with programmable dead time. The integrated 10-bit ADC supports synchronized current sampling at the PWM midpoint, eliminating switching-noise artifacts. With 12 KB of Flash, the part holds state-machine plus a complete torque/speed PI loop, and 1 KB of RAM is sufficient for transform scratch registers. The 5 V tolerant I/O simplifies interface to legacy gate drivers.
Recommended
Digital Power Conversion (PFC / Inverter)
In digital power factor correction (PFC) and DC-AC inverter stages, the DSPIC30F2012T-20I/SO delivers deterministic PWM at the switching frequency while simultaneously running average-current-mode control loops. The DSP engine executes the multiply-accumulate operations needed for Park transforms and instantaneous-power calculations inside the control interrupt, leaving the MCU core free for housekeeping. The 2.5 V to 5.5 V supply range allows direct connection to a 5 V auxiliary rail commonly derived from the PFC boost inductor. With Brown-Out Detect and Power-On Reset built in, the controller survives AC-line brown-outs without false triggering the inverter.
Recommended
Sensor Signal Conditioning
The DSPIC30F2012T-20I/SO suits sensor-signal conditioning front-ends where analog filtering is replaced by DSP routines. Its MAC-based engine runs IIR/FIR filters on 10-bit ADC samples to remove mains-frequency noise, sensor drift, or mechanical resonance in real time. The 1 KB RAM holds a 256-tap filter with double-buffer for sample/result swap, while 12 KB Flash stores filter coefficients and calibration tables. The 28-pin SOIC package exposes enough GPIO for parallel sensor busses and diagnostic LEDs without needing external I/O expanders, and the JTAG boundary scan simplifies bench characterization of filter performance.
Recommended
Industrial Automation Front-End
For industrial PLC front-ends and remote I/O modules, the DSPIC30F2012T-20I/SO provides a 16-bit control core plus DSP math in a single industrial-grade SOIC. The -40C to +85C rating handles factory-floor thermal stress, while the 5 V tolerant I/O connects directly to 24 V industrial sensors through resistor dividers or optocouplers. The 16-bit DSP engine performs on-the-fly RMS calculations, thresholding, and statistical filtering for vibration or pressure sensors. Boundary scan and JTAG debug simplify production test and field firmware update workflows on densely populated control boards.
Recommended
Audio Processing / Active Filter
The DSPIC30F2012T-20I/SO implements digital audio crossovers, equalizers, and active noise-cancellation filters with the DSP engine's MAC instructions. At 20 MIPS, it handles modest FIR filter orders on 8-16 kHz sampled audio, enabling two-band crossover or simple parametric EQ with negligible latency. The integrated 10-bit ADC is adequate for amateur and prosumer audio paths, and the SOIC package fits into small speaker-amp daughter boards. Brown-out detect and watchdog ensure glitch-free audio restart after power events.
Recommended
Uninterruptible Power Supply (UPS) Controller
Inside a small UPS or inverter system, the DSPIC30F2012T-20I/SO monitors battery voltage, mains presence, and load current while executing digital control of the inverter bridge. The DSP engine runs instantaneous power calculations and smooth-transfer algorithms inside the control interrupt; the MCU core handles UART status reporting and LED indicators. The wide 2.5 V to 5.5 V supply range supports operation directly from a 3.2 V LiFePO4 cell after a small LDO, while Brown-Out Detect protects against deep discharge by forcing a graceful shutdown before corruption of in-flight firmware variables.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC30F2012T-20I/SO — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC30F2012-20I/SO | DSPIC30F2012T-20I/SOG | DSPIC30F2012-20E/SO | DSPIC30F2011T-20E/SO | DSPIC30F2012T-30I/SO |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 28-SOIC (SO) | 28-SOIC (SO) - same | 28-SOIC (SO) - same | 28-SOIC (SO) - same | 28-SOIC (SO) - same | 28-SOIC (SO) - same |
| Core / MIPS | dsPIC30F, 16-bit, 20 MIPS | dsPIC30F, 20 MIPS | dsPIC30F, 20 MIPS | dsPIC30F, 20 MIPS | dsPIC30F, 20 MIPS | dsPIC30F, 30 MIPS |
| Flash Program Memory | 12 KB (4K x 24) | 12 KB | 12 KB | 12 KB | 8 KB (-33%) | 12 KB |
| Data RAM | 1 KB | 1 KB | 1 KB | 1 KB | 1 KB | 1 KB |
| Temperature Range | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +125C (Extended) | -40C to +125C (Extended) | -40C to +85C (Industrial) |
| Packaging Form | Tape & Reel | Tray | Tape & Reel (lead-free) | Tray | Tape & Reel | Tape & Reel |
| Pinout / Footprint | 28-pin SOIC compatible | Pin-to-pin compatible | Pin-to-pin compatible | Pin-to-pin compatible | Pin-to-pin compatible | Pin-to-pin compatible |
Key Differentiators
- 12 KB Flash provides more headroom than the 8 KB DSPIC30F2011 sibling (vs DSPIC30F2011T-20E/SO)
- Higher 30 MIPS throughput variant available in the same footprint (vs DSPIC30F2012T-30I/SO)
- Industrial -40C to +85C temperature grade vs extended -40C to +125C (vs DSPIC30F2012-20E/SO)
Design Notes
Place a 100 nF decoupling capacitor on each VDD/VSS pair within 3 mm of the pins, and add a bulk 10 uF tantalum or ceramic near the AVSS/AVDD pair to keep the ADC reference quiet. The dsPIC30F2012 has separate analog and digital supplies; AVSS must be tied to VSS at a single point under the IC to avoid ground-loop noise coupling into ADC readings. If the board uses a switching regulator, route the analog return directly to the bulk capacitor rather than the digital ground plane.
Estimated: at 20 MIPS with 5.5 V supply and typical I/O loading, the DSPIC30F2012T-20I/SO dissipates well under 100 mW. The 28-pin SOIC has a theta_JA near 80 C/W on a 4-layer JEDEC test board, so the junction-temperature rise is approximately 8 C above ambient at full clock speed - no heatsink is required. For industrial -40C to +85C operation this is comfortable headroom, but designers should still verify the local ambient inside sealed enclosures.
Keep the crystal or external clock traces under 10 mm and shield them with a ground pour on both sides to avoid noise coupling into the ADC. The EMUD/EMUC pins used for ICD debug should be brought out to a header or test pad - these pins double as analog inputs, so the ICD header does not consume extra PCB area. For multilayer boards, place a ground plane immediately under the SOIC to provide a low-impedance thermal path; the exposed pad on the SOIC should be soldered to that ground plane.
Do not exceed 5.5 V on any I/O pin - the dsPIC30F is 5 V tolerant but not 5.5 V tolerant above specification, and ESD strikes above the absolute maximum can cause latch-up. When migrating from the DSPIC30F2011T-20E/SO to the DSPIC30F2012T-20I/SO, verify the firmware linker script because Flash grows from 8 KB to 12 KB but RAM stays at 1 KB, which can mask buffer overruns that previously crashed silently.
Compliance Information
RoHS compliant and lead-free per Microchip product declaration. Industrial temperature grade -40C to +85C ('I' suffix). Not AEC-Q100 qualified - choose DSPIC30F2012-30I/SO or extended-temperature variants for harsher environments. Halogen-free status not stated in retrieved web data.
